CA2788966A1 - Use of succinate dehydrogenase (sdh) inhibitors in treating plant species of the family of true grasses - Google Patents

Use of succinate dehydrogenase (sdh) inhibitors in treating plant species of the family of true grasses Download PDF

Info

Publication number
CA2788966A1
CA2788966A1 CA2788966A CA2788966A CA2788966A1 CA 2788966 A1 CA2788966 A1 CA 2788966A1 CA 2788966 A CA2788966 A CA 2788966A CA 2788966 A CA2788966 A CA 2788966A CA 2788966 A1 CA2788966 A1 CA 2788966A1
Authority
CA
Canada
Prior art keywords
plant
use according
sdh
succinate dehydrogenase
bixafen
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA2788966A
Other languages
French (fr)
Other versions
CA2788966C (en
Inventor
Dirk Ebbinghaus
Ulrich Krieg
Carlos Andres Berdugo Agudelo
Erich-Christian Oerke
Heinz-Wilhelm Dehne
Ulrike Steiner-Stenzel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bayer CropScience AG
Original Assignee
Bayer Intellectual Property GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bayer Intellectual Property GmbH filed Critical Bayer Intellectual Property GmbH
Publication of CA2788966A1 publication Critical patent/CA2788966A1/en
Application granted granted Critical
Publication of CA2788966C publication Critical patent/CA2788966C/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N43/00Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/48Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with two nitrogen atoms as the only ring hetero atoms
    • A01N43/561,2-Diazoles; Hydrogenated 1,2-diazoles
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N43/00Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/02Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms
    • A01N43/24Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with two or more hetero atoms
    • A01N43/26Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with two or more hetero atoms five-membered rings
    • A01N43/28Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with two or more hetero atoms five-membered rings with two hetero atoms in positions 1,3
    • A01N43/30Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with two or more hetero atoms five-membered rings with two hetero atoms in positions 1,3 with two oxygen atoms in positions 1,3, condensed with a carbocyclic ring
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N43/00Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/34Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom
    • A01N43/40Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom six-membered rings
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N43/00Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/64Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with three nitrogen atoms as the only ring hetero atoms
    • A01N43/647Triazoles; Hydrogenated triazoles
    • A01N43/6531,2,4-Triazoles; Hydrogenated 1,2,4-triazoles
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N43/00Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
    • A01N43/72Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms
    • A01N43/88Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms six-membered rings with three ring hetero atoms
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N61/00Biocides, pest repellants or attractants, or plant growth regulators containing substances of unknown or undetermined composition, e.g. substances characterised only by the mode of action
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/146Genetically Modified [GMO] plants, e.g. transgenic plants

Abstract

The invention relates to the use of at least one succinate dehydrogenase (SDH inhibitor for increasing the biomass of the flag leaf, the F-1 leaf, and/or the F-2 leaf of the plant for plant species of the family of true grasses (Poaceae).

Description

BCS 09-3162-Foreign Countries Boh/ant 2011-01-07 Use of succinate dehydrogenase (SDH) inhibitors in treating plant species of the family of true grasses The present invention relates to the specific use of succinate dehydrogenase (SDH) inhibitors in the treatment of plant species from the family of the true grasses (Poaceae).

The present invention relates more particularly to the specific use of succinate dehydrogenase (SDH) inhibitors in the treatment of plant species from the family of true grasses (Poaceae) for the purpose of increasing the biomass of the plant. More particularly the present invention relates to the specific use of succinate dehydrogenase (SDH) inhibitors in the treatment of plant species from the family of the true grasses (Poaceae) for the purpose of increasing the biomass of the flag leaf, of leaf F 1 and/or of leaf F2 of the plant.

The use of succinate dehydrogenase (SDH) inhibitors for controlling phytopathogenic fungi and microorganisms is known from the prior art:

Thus, for example, WO 03/070705 Al describes the use of the succinate dehydrogenase (SDH) inhibitor N-(3',4'-dichloro-5-fluoro-1,1'-biphenyl-2-yl)-3-(difluoromethyl)-1-methyl-lH-pyrazole-4-carboxamide (referred to below by the common name bixafen) for controlling unwanted microorganisms and phytopathogenic fungi.

From WO 2009/106633 Al it is known that phytopathogenic fungi and microorganisms can be treated effectively with mixtures of bixafen and epoxiconazole or metconazole.
These mixtures, in accordance with the teaching of WO 2009/106633 Al, are applied directly to the seed or to the soil of the plants.

WO 2006/131221 Al teaches the use of bixafen for controlling pathogenic fungi, more particularly soyabean rust; Phakopsora species, such as, for example, Phakopsora sojae, Phakopsora pachyrhizi and Phakopsora vignae; Uredo sojae and Uromyces sojae; but also against other kinds of rust, such as, for example, the coffee rust Hemileia vastatrix.

Not apparent from these publications is any reference to the effect of succinate dehydrogenase (SDH) inhibitors in increasing the yield.

WO 0 1/64928 A2 describes a method for increasing the biomass of monocotyledonous plants, such as rice, wheat, barley, oats or millet, and dicotyledonous plants, such as peas, alfalfa, chickpeas, chicory, kale or lentils, and for increasing the yield of these plants in respect of seed production and plant biomass. In the case of wheat, the harvest index was employed for the purpose of describing the effect. The functional activity of the plants was described on the basis of the increase in total number of kernels, the increase in the individual kernel weight, the increase in the total kernel BCS 09-3162-Foreign Countries
-2-weight per plant and of the above-ground biomass, the increase of the harvest index, and the improvement in heat stability. The method for increasing the plant biomass in WO 01/64928 A2 is based on transgenic manipulation of the plants and not - as set out later on in the present case - on the use of specific active ingredients. WO 01/64928 A2 likewise contains no indications of any combined treatment of transgenic plants and a fungicidally active component.

Similar methods, encompassing a genetic method for producing transgenic plants for the purpose of increasing the biomass, are known from WO 2003/096797 A2, WO 2006/013010 A2, or WO
2008/142163 A2.

WO 2009/098218 A2 discloses a method for improving plant health by treatment with various SDH inhibitors and also combinations of SDH inhibitors and other pesticides.
The term plant health, according to the definition in WO 2009/098218, encompasses the yield and the vitality of the plants and also the tolerance towards abiotic stress factors. No influence of the treatment on flag leaf growth is shown.

EP 2 039 771 A2 discloses a method for improving the production potential of transgenic plants, especially maize, through treatment with bixafen. One of the measures mentioned for improving the production potential of the plants is the resistance of the plants towards abiotic stress.
Biological data demonstrating this effect are absent from EP 2 039 771 A2.

WO 2005/018324 A2 discloses a method for boosting plant growth by means of amide compounds, such as boscalid, for example. Bixafen is not disclosed. In that application as well no effect of the treatment on flag leaf growth is shown.

It has now been found that it is particularly advantageous to employ succinate dehydrogenase (SDH) inhibitors for the purpose of increasing the yield in plant species from the family of the true grasses (Poaceae). Having proven effective in particular is the application of succinate dehydroge-nase (SDH) inhibitors in the development stages BBCH 12 to 70, preferably in the development stages BBCH 17 to 70, more preferably in the development stages BBCH 20 to 65, more preferably in the development stages BBCH 29 to 60, and very preferably in the development stages BBCH
33 to 55. As well as increasing the yield, the succinate dehydrogenase (SDH) inhibitors proved at the same time to be effective in particular in improving the physiological condition of the plants from the family of the true grasses (Poaceae) and in the control of specific phytopathogens, more particularly Puccinia triticina, Blumeria graminis and Septoria tritici.

For the purposes of the present invention, a plant to be treated is more particularly a plant from development stage BBCH 12 onwards, preferably from development stage BBCH 20, more preferably from development stage BBCH 29, and even more preferably from development stage BCS 09-3162-Foreign Countries
-3-BBCH 33. The definitions of the BBCH stages are given in the BBCH monograph of the Biologische Bundesanstalt fair Land- and Forstwirtschaft, 2nd edition, 2001.

The present invention accordingly provides a method for increasing the yield of plants from the family of the true grasses (Poaceae). The improvement in the physiological condition of the plant, achieved in general at the same time, relates in general to increased physiological activity on the part of the plant, as manifested, for example, in a longer duration of green coloration of the plant.
Effects of the inventive use on the physiology of the plant are described in more detail later on below.

The present invention relates in a first aspect to the use of at least one succinate dehydrogenase (SDH) inhibitor on plant species from the family of the true grasses (Poaceae) for the purpose of increasing the yield through increasing the biomass of the flag leaf, of leaf F-1 and/or of leaf F-2 of the plant.

The boost to yield that is achieved through the application of succinate dehydrogenase (SDH) inhibitors is preferably not attributable to the known fungicidal activity of the succinate dehydroge-nase (SDH) inhibitors against phytopathogens; in particular, with the approach taken by the invention, a boost to yield can be achieved even in the absence of phytopathogens.

In the context of the present invention it has emerged that, as already mentioned, the at least one succinate dehydrogenase (SDH) inhibitor is applied preferably at a point in time which corresponds to one of the development stages BBCH 12 to 70, preferably one of the development stages BBCH
20 to 65, more preferably one of the development stages BBCH 29 to 60, very preferably one of the development stages BBCH 33 to 55. If application of the succinate dehydrogenase (SDH) inhibitor takes place at this point in time in the development of the plant, the boost to yield is particularly marked.

It is additionally preferred, furthermore, if the at least one succinate dehydrogenase (SDH) inhibitor is applied at not less than two points in time during the development of the plant species. The second treatment takes place preferably at a point in time at which, on the plant to be treated, at least leaf F-2, more preferably at least leaf F-2 and leaf F-1, more preferably still the flag leaf, leaf F-1 and leaf F-2, have developed. In this case the application of the succinate dehydrogenase (SDH) inhibitor takes place more particularly by means of spray application to the aforementioned leaves, in other words the flag leaf, the leaf F-1 and/or the leaf F-2.
Overall, in this way, greater growth of these leaves is achieved. The first application preferably takes place at a point in time of development stage BBCH 17 to 42 of the plant species, and the second application at a point in time of development stage BBCH 43 to 70 of the plant species. Corresponding boosts in growth can be achieved, however, not only with this two-stage application of the succinate dehydrogenase BCS 09-3162-Foreign Countries
-4-(SDH) inhibitors, but also if there is only a first application at the development stages identified above.

Through the present invention, therefore, it is possible more particularly to improve the size and/or area of the flag leaf, of leaf F-1 and/or of leaf F-2. This may be ascertained from the length and the width of the leaves in question.

In a further aspect of the present invention, therefore, the present invention relates to the use of at least one succinate dehydrogenase (SDH) inhibitor on plant species from the family of the true grasses (Poaceae) for increasing the size and/or area of at least one plant leaf, selected from the group consisting of the flag leaf, leaf F-1 and leaf F-2.

Since, in the inventive use of at least one succinate dehydrogenase (SDH) inhibitor, the size and/or area of the aforementioned leaves is increased, there is generally, in the context of the present invention, also an increase in the biomass of the plant. In a further aspect, therefore, the present invention relates to the use of at least one succinate dehydrogenase (SDH) inhibitor for increasing the biomass of plants.

More particularly it is possible through the inventive use of at least one succinate dehydrogenase (SDH) inhibitor to improve the biomass of ears, cereal kernels or ears and cereal kernels, or cereal kernels per ear (number of kernels per ear), of the treated plant.

Furthermore, in accordance with a further aspect, it has been found that the specific inventive application of at least one succinate dehydrogenase (SDH) inhibitor is able not only to increase the biomass and/or the yield of the treated plant but also to improve the physiological condition of the plant overall.

Improved plant physiology is manifested, for example, in a longer duration of green leaf coloration of the plant. Accordingly, in the context of the present invention, it has been found that the specific inventive application of the at least one succinate dehydrogenase (SDH) inhibitor makes it possible to prolong the green leaf area duration. This delays the maturation (senescence) of the plant, which to the farmer denotes an advantage on the basis of greater flexibility in the harvesting time. At the same time, the yellowing of such plants is likewise delayed.

Therefore, the present invention also relates to the use of at least one succinate dehydrogenase (SDH) inhibitor for application to plant species from the family of the true grasses (Poaceae) in order to prolong the green leaf area duration.

BCS 09-3162-Foreign Countries
-5-The present invention also relates, furthermore, to the use of at least one succinate dehydrogenase (SDH) inhibitor for application to plant species from the family of the true grasses (Poaceae) in order to achieve delayed maturation (senesence) of the plant.

In particular it is possible by means of the application of the inventively provided succinate dehy-drogenase (SDH) inhibitor for the development of the ears of cereal plants to be delayed or standardized (this being marked by a later time of heading and an earlier end of heading).
Accordingly, the investigations carried out show that, by virtue of the inventive application of succinate dehydrogenase (SDH) inhibitors, the appearance of ears can be delayed by up to a week.
The advantage of delayed heading (ear emergence), which takes place generally at BBCH macro-stage 5 and begins in BBCH development stage 51, is that this delay produces an increased biomass.

The advantage of more uniform heading is that, with the plants that are under the spotlight in accordance with the invention, infestation with Fusarium pathogens occurs frequently during the period of heading, and a more uniform heading, i.e. a shorter time of heading per se, allows targeted control of the Fusarium pathogen during this period.

In the context of the present invention it has additionally been found that through the specific inventive application of at least one succinate dehydrogenase (SDH) inhibitor the chlorophyll content produced in the plant is increased. It has additionally been found that through the application of at least one succinate dehydrogenase (SDH) inhibitor the chlorophyll content in the plant is stabilized. A stabilized chlorophyll content in the context of the present invention means that the breakdown of the chlorophyll in the plant is slower, owing to the inventive application, than in an untreated plant.

The present invention, accordingly, also relates to the use of at least one succinate dehydrogenase (SDH) inhibitor for application to plant species from the family of the true grasses (Poaceae) in order to achieve an increased chlorophyll content and/or a stabilized chlorophyll content in the plant.

It has been ascertained, furthermore, that an increased photosynthesis rate may occur in the plants by virtue of the inventive application. The present invention therefore also relates to the use of at least one succinate dehydrogenase (SDH) inhibitor for application to plant species from the family of the true grasses (Poaceae) in order to achieve an increased photosynthesis rate in the plant.

This increased photosynthesis rate of the plant may be accompanied by delayed senescence of the plant.

BCS 09-3162-Foreign Countries
-6-In the context of the present invention it has been found, furthermore, that through the specific inventive application of at least one succinate dehydrogenase (SDH) inhibitor, finally, it is possible to improve the resistance or tolerance of plants towards abiotic stress factors. Thus in the case of heat stress it is found that plants treated with at least one succinate dehydrogenase (SDH) inhibitor exhibit an improved transpiration rate and hence an improved evaporative cooling.

The term tolerance or resistance towards abiotic stress is understood in the context of the present invention to encompass various kinds of advantages for plants that are not directly associated with the known fungicidal activity of succinate dehydrogenase (SDH) inhibitors.
Such advantageous properties are manifested, for example, in the improved plant characteristics identified as follows:
improved root growth in terms of surface area and depth, increased tillering or stolonization, stronger and more productive tillers and stolons, improvement in shoot growth, increased standing power, increased shoot base diameters, increased leaf area, higher yields of nutrients and constituents, such as carbohydrates, fats, oil, proteins, vitamins, minerals, essential oils, dyes, fibres, for example, better fibre quality, earlier flowering, increased number of flowers, reduced level of toxic products such as mycotoxins, reduced level of residues or disadvantageous constituents of any kind, or better digestibility, improved stability of the harvested crop in storage, improved tolerance to inclement temperatures, improved tolerance to drought and dryness, and also to lack of oxygen as a result of waterlogging, improved tolerance towards increased salt levels in soils and water, increased tolerance towards ozone stress, improved tolerance to herbicides and other plant treatment products, improved water uptake and photosynthesis rate, advantageous plant properties, such as, for example, altered maturation, more uniform maturation, greater attraction for beneficial organisms, improved pollination or other advantages which are well known to a person skilled in the art.

The above-described effects of the succinate dehydrogenase (SDH) inhibitors may occur individually or else simultaneously and can be demonstrated typically with terms that have general validity. Examples of such terms include the designations set out as follows:
phytotonic effect, resistance to stress factors, less plant stress, plant health, healthy plants, plant fitness, plant wellness, plant concept, vigour effect, stress shield, protective shield, crop health, crop health properties, crop health products, crop health management, crop health therapy, plant health, plant health properties, plant health products, plant health management, plant health therapy, greening effect, re-greening effect, freshness, or other terms which are well known to a person skilled in the art.

Furthermore, the inventively envisaged application of succinate dehydrogenase (SDH) inhibitors is accompanied by successful control of relevant pathogens. This relates to the known application of BCS 09-3162-Foreign Countries
-7-bixafen for the control of fungicides, but through the specific application of bixafen to the flag leaf, the leaves F-1 and/or F-2, particularly effective control of the pathogens is possible.

Pathogens to be controlled may be selected, in the context of the present invention, from the group consisting of Ascochyta tritici, Blumeria graminis, Cladosporium herbarum, Cochliobolus sativus, Epicoccum spp., Erysiphe graminis, Fusarium graminearum, Fusarium culmorum, Gaeumannomyces graminis, Leptosphaeria nodorum, Microdochium nivale, Pseudocercospora herpotrichoides, Pseudocercosporella herpotrichoides, Puccinia striiformis, Puccinia triticina, Puccinia hordei, Puccinia recondite, Pyrenophora graminea, Pyrenophora teres, Pyrenophora tritici repentis, Ramularia collo-cygni, Rhizoctonia solani, Rhizoctonia cerealis, Rhynchosporium secalis, Septoria nodorum, Septoria tritici, Stagonospora nodorum, Tilletia caries, Typhula incarnate, Uromyces appendiculatus, Ustilago avenae and Ustilago nuda.

The present invention is suitable more particularly for the simultaneous control of pathogens selected from the group consisting of Puccinia triticina, Blumeria graminis and Septoria tritici.

An assembly of inventive succinate dehydrogenase (SDH) inhibitors is found at www.FRAC.info (Mode of Action Poster, subgroup C2: inhibition of complex II: succinate dehydrogenase, # 7 SDHI Succinate DeHydrogenase Inhibitors).

Particularly preferred succinate dehydrogenase (SDH) inhibitors of the invention may be selected from the group consisting of the following compounds:

(1) Fluopyram, with the chemical name N-{[3-chloro-5-(trifluoromethyl)-2-pyridinyl]ethyl}-2,6-dichlorobenzamide, which is a fungicide from the chemical class of the pyridylethylbenzamides. Fluopyram and its preparation process starting from known and commercially available components are described in publication EP 1 389 614 A.

(2) Penflufen, with the chemical name N-[2-(1,3-dimethylbutyl)phenyl]-5-fluoro-1,3-dimethyl-I H-pyrazole-4-carboxamide. Penflufen and its preparation process starting from known and commercially available components are described in publication WO
2003/010149 A.

(3) Bixafen, with the chemical name N-(3',4'-dichloro-5-fluoro-1,1'-biphenyl-2-yl)-3-(difluoro-methyl)-1-methyl-lH-pyrazole-4-carboxamide. Bixafen and its preparation process starting from known and commercially available components are described in publication WO
2003/070705 A.

(4) Sedaxane, which is a mixture of two cis-isomers 2'-[(1RS,2RS)-1,1'-bicycloprop-2-yl]-3-(difluoromethyl)-1-methylpyrazole-4-carboxanilide and two trans-isomers 2'-[(1RS,2SR)-1,1'-bicycloprop-2-yl]-3-(difluoromethyl)-1-methylpyrazole-4-carboxanilide.
Sedaxane and BCS 09-3162-Foreign Countries
-8-its preparation process starting from known and commercially available components are described in publications WO 2003/074491 A, WO 2006/0 1 5 865 A and WO

A.

(5) Isopyrazam, which is a mixture of 2 syn-isomers 3-(difluoromethyl)-1-methyl-N-[(1 RS,4SR,9RS)-1,2,3,4-tetrahydro-9-isopropyl-1,4-methanonaphthalen-5-yl]pyrazole-4-carboxamide and 2 anti-isomers 3-(difluoromethyl)-1-methyl-N-[(1RS,4SR,9SR)-1,2,3,4-tetrahydro-9-isopropyl-1,4-methanonaphthalen-5-yl]pyrazole-4-carboxamide.
Isopyrazam and its preparation process starting from known and commercially available components are described in publication WO 2004/035589 A.

(6) Penthiopyrad, with the chemical name (RS)-N-[2-(1,3-dimethylbutyl)-3-thienyl]-1-methyl-3-(trifluoromethyl)pyrazole-4-carboxamide. Penthiopyrad and its preparation process starting from known and commercially available components are described in publication EP 0 737 682 A.

(7) Boscalid, with the chemical name 2-chloro-N-(4'-chlorobiphenyl-2-yl)nicotinamide.
Boscalid and its preparation process starting from known and commercially available components are described in publication DE 195 31 813 A.

(8) Fluxapyraxad, with the chemical name 3-(difluoromethyl)-1-methyl-N-(3',4',5'-trifluorobiphenyl-2-yl)-1H-pyrazole-4-carboxamide. Fluxapyraxad and its preparation process starting from known and commercially available components are described in publication WO 2006/087343 A.
(9) N-[1-(2,4-Dichlorophenyl)-1-methoxypropan-2-yl]-3-(difluoromethyl)-1-methyl-IH-pyrazol-4-carboxamide, whose preparation process starting from known and commercially available components is described in publication WO 2010/000612 A.

In the context of the present invention it is particularly preferred if bixafen, with the chemical name N-(3',4'-dichloro-5-fluoro-1,1'-biphenyl-2-yl)-3-(difluoromethyl)-1-methyl-lH-pyrazole-4-carboxamide, is used as succinate dehydrogenase (SDH) inhibitor.

It is further preferred if bixafen is used in combination with at least one further active ingredient.
The further active ingredient is preferably selected from the group consisting of spiroxamine, fluoxastrobin and prothioconazole. Particularly preferred is a combination of bixafen and prothioconazole.

BCS 09-3162-Foreign Countries The inventively envisaged use of succinate dehydrogenase (SDH) inhibitors takes place preferably with a dose of between 0.01 and 3 kg/ha, more preferably between 0.01 and 1.5 kg/ha, and with particular preference between 0.1 and 0.5 kg/ha.

Particularly suitable target crops for the purposes of the present invention are from the family of the true grasses: wheat, rye, barley, oats, millet, maize, rice, triticale, bamboo and sugarcane.

The present invention is suitable, furthermore, for the treatment of winter cereal and spring cereal.
Particular preference is given in accordance with the invention to treating plants of the respective plant varieties which are available commercially or are in use. By plant varieties are meant plants having new properties (traits) which have been cultivated by conventional breeding, by mutagenesis or using recombinant DNA techniques. Accordingly, crop plants may be plants obtainable by conventional breeding and optimization methods or by biotechnological and recombinant methods, or by combinations of these methods, including the transgenic plants and including the plant varieties which may or may not be amenable to protection by varietal property rights (plant breeders' rights).

In the context of the present invention, genetically modified organisms (GMOs) may also be treated. Genetically modified plants (or transgenic plants) are plants in which a heterologous gene has been stably integrated into the genome. The term "heterologous gene"
denotes essentially a gene which is provided or assembled outside the plant and which, on introduction into the nuclear genome, the chloroplast genome or the mitochondrial genome, endows the transformed plant with new or improved agronomic or other properties, by expressing a polypeptide or protein of interest or by down-regulating or switching off another gene present in the plant or other genes present in the plant (for example, by means of antisense technology, cosuppression technology or RNAi [RNA Interference] technology). A heterologous gene which is present in the genome is also termed a transgene. A transgene, which is defined by its specific presence in the plant genome, is referred to as a transformation event or transgenic event.

Plants and plant varieties which are treated preferably in accordance with the invention include all plants possessing genetic material that endows these plants with particularly advantageous, useful traits (irrespective of whether this has been achieved through breeding and/or biotechnology).

Plants and plant varieties which may likewise be treated in accordance with the invention are those plants which are resistant to one or more abiotic stress factors. The abiotic stress conditions may include, for example, drought, conditions of cold and of heat, osmotic stress, water logging, increased soil salinity, increased exposure to minerals, ozone conditions, strong light conditions, BCS 09-3162-Foreign Countries
-10-limited availability of nitrogen nutrients, limited availability of phosphorus nutrients, or shade avoidance.

Plants and plant varieties that may likewise be treated in accordance with the invention are those plants which are characterized by increased yield properties. Increased yield in these plants may derive, for example, from improved plant physiology, improved plant growth and improved plant development, such as water utilisation efficiency, water retention efficiency, improved nitrogen use, enhanced carbon assimilation, improved photosynthesis, increased germination efficiency, and altered maturation. Yield may additionally be affected by an improved architecture (under stress and non-stress conditions), including early flowering, control of flowering for production of hybrid seed, seedling vigour, plant size, internode number and distance, root growth, seed size, fruit size, pod size, number of pods or ears, number of seeds per pod or ear, seed mass, increased seed filling, reduced seed dispersal, reduced pod dehiscence, and lodging resistance.
Further yield traits include seed composition such as carbohydrate content, protein content, oil content and oil composition, nutritional value, reduction in anti-nutritional compounds, improved processing properties and improved storage qualities.

Plants that may likewise be treated in accordance with the invention are hybrid plants which already express the characteristics of heterosis, or the hybrid effect, which results generally in higher yield, greater vigour, better health and better resistance towards biotic and abiotic stress factors. Plants of this kind are typically produced by crossing an inbred male-sterile parent line (the female crossing partner) with another inbred male-fertile parent line (the male crossing partner).
The hybrid seed is typically harvested from the male-sterile plants and sold to growers. Male-sterile plants may sometimes (as in the case of maize, for example) be produced by detasselling (i.e.
mechanical removal of the male reproductive organs or male flowers); it is, however, more usual for the male sterility to derive from genetic determinants in the plant genome. In that case, especially when the desired product it is desired to harvest from the hybrid plants is the seeds, it is typically useful to ensure that the male fertility is fully restored in hybrid plants which contain genetic determinants that are responsible for the male sterility. This can be accomplished by ensuring that the male crossing partners possess corresponding fertility restorer genes, which are capable of restoring male fertility in hybrid plants which contain the genetic determinants that are responsible for the male sterility. Genetic determinants for male sterility may be located in the cytoplasm. Examples of cytoplasmic male sterility (CMS) have been described, for example, for Brassica species (WO 1992/005251, WO 1995/009910, WO 1998/27806, WO
2005/002324, WO
2006/021972 and US 6,229,072). Genetic determinants for male sterility may also, however, be located in the nuclear genome. Male-sterile plants can also be obtained by methods of plant biotechnology, such as genetic engineering. One particularly useful means of generating male-sterile plants is described in WO 89/10396, where, for example, a ribonuclease such as a Barnase is BCS 09-3162-Foreign Countries
-11-expressed selectively in the tapetum cells in the stamens. Fertility can then be restored by expression of a ribonuclease inhibitor such as barstar in the tapetum cells (e.g. WO 1991/002069).
In the context of the present invention, the succinate dehydrogenase (SDH) inhibitor may be used in the form of a formulation.

The active ingredient of the invention may be present in its standard commercial formulations and also in the application forms that are prepared in these formulations, in a mixture with other active ingredients such as insecticides, attractants, sterilants, bactericides, acaricides, nematicides, fungicides, growth regulators, herbicides, safeners, fertilizers or semiochemicals.

In this case the succinate dehydrogenase (SDH) inhibitor for use in accordance with the invention may be used in customary formulations, such as solutions, emulsions, wettable powders, water-based and oil-based suspensions and suspension-emulsion concentrates.

In the context of the present invention it is particularly preferred if the succinate dehydrogenase (SDH) inhibitor envisaged in accordance with the invention is used in the form of a spray formulation.

Corresponding formulations and their constituents are known per se to a person skilled in the art.
The examples which follow describe the invention in detail, but in no way limit the present invention.

BCS 09-3162-Foreign Countries
-12-Experimental description:

Example 1:

In Germany a plot trial was set up with the wheat variety Ritmo in order to investigate the effect of bixafen on the physiology, morphology and abiotic stress tolerance of wheat plants under realistic agricultural conditions.

The products under test were applied to the plants, in the form of sequential spray sequences (BBCH 39 and 59). The spray volume was 400 1 of water per hectare. In each trial component, 5 repetitions were carried out.

Active Formulation Active ingredient Application rate Amount ingredient(s) content [g a.i./1] [1/ha] applied [g/ha]
Bixafen EC 125 1 125 Fluoxastrobin EC 100 2 200 Prothioconazole EC 250 0.8 200 Spiroxamine EC 500 0.75 375 Boscalid WG 500 g/kg I kg/ha 500 g/ha Spiroxamine + EC 300 +160 1.25 375 +200 Prothioconazole Bixafen + EC 75+ 150 1.25 94+ 188 Prothioconazole Subsequently, non-invasive and invasive methods were applied for capturing the plant development and plant physiology. In addition, parameters relevant to yield were captured.

Results of Example 1:

The duration of green coloration of the leaf area was captured by regular visual scoring of the fraction of green leaf area.

The trials show that the succinate dehydrogenase (SDH) inhibitor bixafen has a pronounced effect on the duration of the green leaf area of the wheat plant. The effect of bixafen alone can be increased still further by combination with a fungicide, particularly with the fungicide prothioconazole.

BCS 09-3162-Foreign Countries
-13-Table 1: Influence of fungicide treatments on the green leaf area of the flag leaf (% leaf area) Days after second fungicide application Treatment Untreated 97.5 92.5 74.5 63.1 0 0 Bixafen (BIX) 98.9 98.7 98.8 96.7 73.0 26.7 Fluoxastrobin 98.7 98.7 98.3 95.8 63.0 23.7 Prothioconazole (PTZ) 98.8 98.2 98.1 94.0 58.8 13.8 Spiroxamine (SPR) 98.3 97.9 92.7 82.3 48.6 5.5 Boscalid 96.0 95.5 86.1 73.6 43.2 7.0 BIX + PTZ 98.8 98.8 98.7 97.8 76.5 38.0 SPR + PTZ 98.9 98.6 98.6 95.6 54.6 12.6 Table 2: Effect of fungicide treatments on the green leaf area of the second-from-top leaf (F-1; % leaf area) Days after second fungicide application Treatment Untreated 94.6 87.1 57.1 41.5 0 0 0 Bixafen (BIX) 98.4 98.3 98.5 94.8 60.0 9.2 0 Fluoxastrobin 98.8 98.0 96.1 93.5 47.0 9.8 0 Prothioconazole (PTZ) 97.8 97.8 96.8 91.2 44.3 4.2 0 Spiroxamine (SPR) 97.4 95.8 85.8 69.7 31.7 0 0 Boscalid 94.4 91.8 74.7 60.0 25.5 0 0 BIX + PTZ 98.6 98.5 98.4 95.8 61.0 22.7 0 SPR + PTZ 97.6 97.4 97.3 93.4 36.3 3.7 0 BCS 09-3162-Foreign Countries
-14-Table 3: Effect of fungicide treatments on the green leaf area of the third-from-top leaf (F-2;
% leaf area) Days after second fungicide application Treatment Untreated 89.6 79.5 41.7 19.7 0 0 Bixafen (BIX) 96.4 96.3 94.5 91.8 37.5 3.4 Fluoxastrobin 96.3 95.5 92.1 88.5 31.5 1.9 Prothioconazole (PTZ) 96.1 95.9 94.9 83.7 25.3 0 Spiroxamine (SPR) 94.1 93.3 78.1 51.7 15.7 0 Boscalid 90.3 85.8 61.5 41.0 4.6 0 BIX + PTZ 96.7 96.6 96.2 94.2 43.0 9.0 SPR + PTZ 95.6 95.4 93.7 87.7 22.1 0 The chlorophyll content of treated and untreated plants was determined by the pigment extraction method of Ziegler and Ehle. Factors relevant to yield that were captured were the kernel yield, the thousand-kernel mass, the number of ears/plot, and the straw mass.

It is found that, where at least one succinate dehydrogenase (SDH) inhibitor, for example bixafen, is used alone or else in combination with other active fungicidal ingredients, such as prothioconazole in particular, the chlorophyll content overall is higher and the breakdown of chlorophyll is slower; the chlorophyll in the plant, therefore, is stabilized.
This is apparent from a comparison of the chlorophyll content at different stages of development (cf.
Table 4) of the plant.

BCS 09-3162-Foreign Countries
-15-Table 4: Effect of fungicide treatments on the chlorophyll content of wheat leaves at development stages BBCH 75 (mature milk) and BBCH 85 (mature dough) Treatment Chlorophyll content [pg -' Untreated 1328 990 555 121 119 220 Bixafen (BIX) 1763 1693 1243 738 631 404 Fluoxastrobin 1924 1671 1126 630 534 415 Prothioconazole 1740 1637 1207 211 163 116 (PTZ) S iroxamine SPR 1471 1245 707 114 119 147 Boscalid 1597 1505 826 188 160 110 BIX + PTZ 1915 1657 1180 1200 716 538 SPR + PTZ 1794 1373 1012 149 344 189 The individual yield components of wheat as well can be improved through the inventive use of at least one succinate dehydrogenase (SDH) inhibitor alone or in combination with a further fungicide (cf. Table 5). This relates to the yield, the thousand-kernel mass, and the number of ears per m2.
Table 5: Effect of fungicide treatments on the yield components of wheat Treatment Yield TKM Ears / Straw Harvest a ] [g] m2 [g m ] Index [t ha-'-]-Untreated 7.3 40.3 392 467 60.3 Bixafen (BIX) 8.5 47.7 417 590 58.5 Fluoxastrobin 8.2 45.8 409 581 58.1 Prothioconazole (PTZ) 8.1 46.3 397 533 59.3 S iroxamine (SPR 7.7 44.2 409 514 59.3 Boscalid 7.8 44.6 444 514 58.6 BIX + PTZ 8.7 49.2 391 600 59.6 SPR + PTZ 8.3 45.9 395 562 58.8 Example 2:

In a glasshouse trial under controlled conditions, the effect of bixafen was investigated on the physiology, morphology and abiotic stress tolerance of infection-free wheat plants of the cultivar Passat.

The wheat plants were grown in 10-litre containers over a period of 4 months.
The substrate used was standard earth type ED 73 (Frondenberg, Germany) + C-Horizont + Sand (4:2:1). The supply of nutrient to the plants took place by feeding with a 0.2% strength Flory 2 liquid fertilizer solution BCS 09-3162-Foreign Countries
-16-(from Euflor, Munich) once every two weeks. The plants were supplied with water as required. In each component of the trial, 10 repetitions were carried out.

To prevent infestation with powdery mildew, Proquinazid (Talius ) was applied once. The incidence of aphids and spider mites was avoided by treatments with Karate e, Bulldock and Sumicidiri .

The products under test were applied to the plants, in the form of sequential spray sequences (BBCH 39 and 59). The spray volume was 300 1 of water per hectare.

Active ingredient(s) Formulation Active ingredient Application rate Amount content [g a.i./1] [1/ha] applied [g/ha]
Bixafen EC 125 1 125 Fluoxastrobin EC 100 2 200 Prothioconazole EC 250 0.8 200 Spiroxamine EC 500 0.75 375 Subsequently, noninvasive and invasive methods were employed for capturing the plant development and plant physiology. In addition, morphological parameters and parameters relevant to yield were captured.

Results of Example 2:

The duration of the green colouration of the leaf area was captured on the basis of regular visual scoring of the fraction of the green leaf area.

The trials show that the succinate dehydrogenase (SDH) inhibitor bixafen has a pronounced effect on the duration of the green leaf area of the wheat plant.

Table 6: Effect of fungicide treatments on the green leaf area of the flag leaf (F; % leaf area) Days after second fungicide application Treatment Untreated 100 100 100 93 78 53 21 2 Bixafen 100 100 100 95 88 65 38 15 Fluoxastrobin 100 100 100 95 85 60 37 12 Prothioconazole 100 100 100 95 85 62 38 15 Spiroxamine 100 100 100 92 80 55 23 3 BCS 09-3162-Foreign Countries
-17-Table 7: Effect of fungicide treatments on the green leaf area of the second-from-top leaf (F-1; % leaf area) Treatment Days after second fungicide application Untreated 100 100 92 75 46 22 5 0 Bixafen (BIX) 100 100 95 85 57 33 20 5 Fluoxastrobin 100 100 95 84 56 30 18 6 Prothioconazole 100 100 95 83 57 30 19 5 Spiroxamine 100 100 90 77 50 23 6 0 Table 8: Effect of fungicide treatments on the green leaf area of the third-from-top leaf (F-2;
% leaf area) Days after second fungicide application Treatment Untreated 100 95 70 40 19 4 0 0 Bixafen 100 95 80 52 29 15 6 0 Fluoxastrobin 100 95 82 54 29 18 7 0 Prothioconazole 100 95 83 53 30 17 8 0 Spiroxamine 100 95 73 45 19 7 0 0 Additional factors relevant to yield that were captured were the kernel yield, the thousand-kernel mass, the number of ears/container, and the number of kernel/ear (see Table 17).

It is found that the succinate dehydrogenase (SDH) inhibitor bixafen leads to a higher yield, a higher number of kernel/ear, a higher thousand-kernel mass and a lower straw fraction than the other comparison fungicides. Bixafen exhibits a high harvest yield, expressed as the ratio of harvested parts to unusable parts of a plant (called Harvest Index in the language of the art).

Table 9: Effect of fungicide treatments on the yield components of wheat Treatment Yield Ears / pot Kernels / TKM Straw Harvest [g / pot] ear [g] [g / pot] Index [%]
Untreated 29.6 39.0 22.7 33.5 64.6 31.4 Bixafen 37.5 40.0 25.1 37.5 88.5 29.8 Fluoxastrobin 30.5 41.0 21.9 34.3 74.5 29.0 Prothioconazole 32.1 43.1 22.2 33.5 85.4 27.3 Spiroxamine 33.4 40.9 23.2 35.5 58.6 36.3 Morphological parameters measured, additionally, were the length and width, i.e. the size of the flag leaf. This was greatest with the succinate dehydrogenase (SDH) inhibitor bixafen, in comparison to the other comparison fungicides.

BCS 09-3162-Foreign Countries
-18-Table 10: Effect of fungicide treatments on the size of the flag leaf of wheat at BBCH 83-85 Treatment Length [cm] Width [cm] Area [cmz] Area [rel.]
Untreated 25.1 1.3 21.86 100 Bixafen 28.1 1.7 32.01 146 Fluoxastrobin 25.6 1.4 24.01 110 Prothioconazole 26.7 1.3 23.26 106 Spiroxamine 26.1 1.2 20.98 96 calculated using the formula A = 0.67 x length x width Additionally evaluated was the effect of fungicide treatments on the time of heading (ear emergence) in wheat. It was found that, using bixafen, the heading is more uniform. Since the plants under the spotlight are frequently infested by Fusarium pathogens during the period of heading, a more uniform heading at this point in time allows targeted control of the Fusarium pathogen.

Table 11: Effect of fungicide treatments on the time of heading of wheat (after 40 days there were still no ears present, after 90 days all of the ears had emerged in all treatments).

Treatment Days after sowing [d]

Untreated 17.9 45.1 48.9 54.1 64.1 76.4 83.5 96.1 100 Bixafen 1.8 15.5 42.2 57.0 78.0 88.7 93.5 96.7 98.5 Fluoxastrobin 11.4 33.1 43.8 49.9 61.1 76.4 87.8 93.1 97.1 Prothioconazole 6.9 29.0 42.6 48.2 64.1 77.9 87.1 94.9 100 Spiroxamine 10.8 34.1 46.4 57.5 75.5 83.4 91.1 99.1 100 The results shown in Table 12 below demonstrate that plants treated with at least one succinate de-hydrogenase (SDH) inhibitor exhibit an improved transpiration rate and hence improved evaporative cooling.

Table 12 Effect of fungicide treatments on the temperature of the ears and leaves of wheat (as a measure of the transpiration activity) at the four development stages BBCH
75, 80, 85 and 90.

Treatment Temper re ['Cl ear leaf ear leaf ear leaf ear lear Untreated 23.7 22.5 20.4 18.1 25.3 24.4 24.3 23.4 Bixafen 22.3 22.1 18.2 16.4 24.5 23.3 24.1 22.3 Fluoxastrobin 23.1 22.3 18.9 16.5 24.8 23.4 23.9 22.7 Prothioconazole 23.1 22.4 19.5 16.6 24.8 23.7 24.2 23.1 Spiroxamine 23.2 22.4 20.2 16.4 25.1 23.7 24.2 23.2 BCS 09-3162-Foreign Countries
-19-As shown in Table 13 below, using a succinate dehydrogenase (SDH) inhibitor it is possible to achieve an increased photosynthesis rate in the plant from the family of the true grasses.

Table 13 Effect of fungicide treatments on the gas exchange activity of wheat ears at development stage BBCH 75.

Treatment Photosynthesis Respiration [CO2 Cper ear] [CO2 Cper ear]
Untreated -0.98 a 0.80 a Bixafen -5.94 b 6.12 c Fluoxastrobin -2.44 a 2.96 b Prothioconazole -1.86 a 2.12 ab Spiroxamine -2.36 a 2.82 b Example 3:

Effect of bixafen on leaf area - Comparison of single and double treatment with Bixafen Trial procedure: Wheat plants were treated at different development stages with bixafen once or twice (125 g/ha each time), and a measurement was made of the respective size of the flag leaf and of the leaf F-1 at the time BBCH 75. For the destructive measurement of the leaf area, the leaves were removed from the plant. The non-destructive measurement was carried out on the intact leaf of the plant.

Table 14: Effect of bixafen on the size of the flag leaf on wheat at BBCH 75 (non-destructive measurement); n = 15 Treatment Length [cm] Width [cm] Area [cm2] Area [rel.]
Untreated 22.84 1.69 32.42 100 Bixafen [BBCH 33] 25.11 1.66 35.23 109 Bixafen [BBCH 39] 24.21 1.72 34.86 108 Bixafen [BBCH 59] 23.78 2.02 37.91 117 Bixafen [BBCH 33+39] 24.49 1.76 35.37 109 Bixafen [BBCH 33+59] 25.83 1.73 37.41 115 Bixafen [BBCH 39+59] 26.83 1.77 39.44 122 BCS 09-3162-Foreign Countries
-20-Table 15: Effect of bixafen on the size of the flag leaf of wheat at BBCH 75 (destructive measurement); n = 40 Treatment Length [cm] Width [cm] Area [cm2] Area [rel.]
Untreated 25.13 1.35 27.96 100 Bixafen [BBCH 33] 28.25 1.47 32.13 115 Bixafen [BBCH 39] 25.81 1.40 29.04 104 Bixafen [BBCH 59] 26.58 1.47 32.37 116 Bixafen [BBCH 33+391 24.49 1.40 29.38 105 Bixafen BBCH 33+59] 27.10 1.51 31.28 112 Bixafen [BBCH 39+59126.57 1.52 32.44 116 Table 16: Effect of bixafen on the size of the leaf F-1 in wheat at BBCH 75 (destructive measurement); n = 40 Treatment Length [cm] Width [cm] Area [cmz] Area [rel.]
Untreated 26.91 1.26 27.55 100 Bixafen [BBCH 33 30.58 1.35 32.69 119 Bixafen [BBCH 39] 28.27 1.19 28.37 103 Bixafen [BBCH 59] 31.10 1.26 30.55 111 Bixafen [BBCH 33+39] 27.68 1.27 28.42 103 Bixafen [BBCH 33+59] 29.77 1.30 30.07 109 Bixafen [BBCH 39+59] 29.38 1.20 30.28 110 Example 4:

Table 17: Effect of bixafen on the number of kernels/ear in wheat (n=15) 1st. trial:
Treatment Kernels/ear Application rates Untreated 37.9 Bixafen [BBCH 39] 42.6 125 a.i.
Bixafen 41.7 twice [BBCH 33+59] 125 a.i.
Bixafen + 44.9 75 + 150 g a.i.
Prothioconazole [BBCH 39]
Bixafen + 42.0 twice Prothioconazole 75 + 150 g a.i.
[BBCH 39+59]

BCS 09-3162-Foreign Countries
-21-2nd trial Treatment Kernels/ear Untreated 30.1 Prothioconazole 30.1 200 g a.i.
[BBCH 39]
Bixafen + 39.7 75 + 150 g Prothioconazole a.i./ha [BBCH 39

Claims (16)

1. Use of at least one succinate dehydrogenase (SDH) inhibitor for increasing the biomass of a plant of species from the family of the true grasses (Poaceae).
2. Use according to Claim 1, where the biomass of the flag leaf, of leaf F1 and/or of leaf F2 of the plant of species from the family of the true grasses (Poaceae) is increased.
3. Use according to Claim 1 or 2, where the biomass of the flag leaf of the plant of species from the family of the true grasses (Poaceae) is increased.
4. Use according to any of Claims 1 to 3 in a development stage BBCH 17 to 70 of the plant species.
5. Use according to any of Claims 1 to 4, where the at least one succinate dehydrogenase (SDH) inhibitor is applied at not less than two times in the development of the plant species, where - the first application takes place at a time of development stage BBCH 17 to 42 of the plant species, and - the second application takes place at a time of the development stage BBCH
43 to 70 of the plant species.
6. Use according to any of Claims 1 to 5 for increasing the biomass of ears, cereal kernels and/or cereal kernels per ear.
7. Use according to any of Claims 1 to 6 for simultaneously improving the physiological condition of the plant.
8. Use according to Claim 7 for prolonging the green leaf area duration of the plant.
9. Use according to Claim 7 or 8 for obtaining an increased photosynthesis rate in the plant.
10. Use according to any of Claims 7 to 9 for obtaining an increased chlorophyll content and/or a stabilized chlorophyll content in the plant.
11. Use according to any of Claims 7 to 10 for obtaining delayed senescence of a plant.
12. Use according to any of Claims 7 to 11 for improving the resistance and tolerance of plants towards abiotic stress factors.
13. Use according to any of Claims 1 to 12, where the succinate dehydrogenase (SDH) inhibitor is selected from the group consisting of fluopyram, penflufen, bixafen, sedaxane, isopyrazam, penthiopyrad, boscalid, fluxapyraxad and N-[1-(2,4-dichlorophenyl)-methoxypropan-2-yl]-3-(difluoromethyl)-1-methyl-1H-pyrazole-4-carboxamide.
14. Use according to any of Claims 1 to 13, where bixafen is used as succinate dehydrogenase (SDH) inhibitor and is used in combination with at least one further active ingredient selected from the group consisting of spiroxamine, fluoxastrobin and prothioconazole.
15. Use according to any of Claims 1 to 14, characterized in that the succinate dehydrogenase (SDH) inhibitor is applied with a dose of between 0.01 and 3 kg/ha.
16. Use according to any of Claims 1 to 15, characterized in that suitable target crops are selected from the group of the true grasses, consisting of wheat, rye, barley, oats, millet, maize, rice, triticale, bamboo and sugarcane.
CA2788966A 2010-02-05 2011-02-02 Use of succinate dehydrogenase (sdh) inhibitors in treating plant species of the family of true grasses Active CA2788966C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
EP10152790A EP2353387A1 (en) 2010-02-05 2010-02-05 Use of succinate dehydrogenase (SDH) inhibitors in the treatment of plant types in the sweet grass family
EP10152790.1 2010-02-05
US30342510P 2010-02-11 2010-02-11
US61/303,425 2010-02-11
PCT/EP2011/051424 WO2011095496A2 (en) 2010-02-05 2011-02-02 Use of succinate dehydrogenase (sdh) inhibitors in treating plant species of the family of true grasses

Publications (2)

Publication Number Publication Date
CA2788966A1 true CA2788966A1 (en) 2011-08-11
CA2788966C CA2788966C (en) 2018-01-30

Family

ID=42262365

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2788966A Active CA2788966C (en) 2010-02-05 2011-02-02 Use of succinate dehydrogenase (sdh) inhibitors in treating plant species of the family of true grasses

Country Status (12)

Country Link
US (1) US9215872B2 (en)
EP (2) EP2353387A1 (en)
JP (1) JP5837510B2 (en)
AR (1) AR081620A1 (en)
CA (1) CA2788966C (en)
DK (1) DK2531031T3 (en)
EA (1) EA029859B1 (en)
HU (1) HUE032741T2 (en)
LT (1) LT2531031T (en)
PL (1) PL2531031T3 (en)
UA (1) UA109894C2 (en)
WO (1) WO2011095496A2 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2255626A1 (en) * 2009-05-27 2010-12-01 Bayer CropScience AG Use of succinate dehydrogenase inhibitors to increase resistance of plants or parts of plants to abiotic stress
AU2013289301A1 (en) * 2012-07-11 2015-01-22 Bayer Cropscience Ag Use of fungicidal combinations for increasing the tolerance of a plant towards abiotic stress
AU2013333846B2 (en) * 2012-10-19 2017-04-20 Bayer Cropscience Ag Method for enhancing tolerance to abiotic stress in plants using carboxamide or thiocarboxamide derivatives
AU2013364884B2 (en) 2012-12-21 2017-07-06 Sumitomo Chemical Company, Limited Method for increasing number or weight of crop seeds or fruits
CN114052030A (en) * 2017-03-07 2022-02-18 Upl有限公司 Fungicidal combinations
MX2019012543A (en) * 2017-04-21 2019-12-02 Bayer Cropscience Lp Method of improving crop safety.
EP3415007A1 (en) * 2017-06-12 2018-12-19 Bayer AG Ptz formulations with low content of desthio
CN111363836B (en) * 2019-12-26 2022-11-22 南京农业大学 Application of SDHC subunit genetically differentiated by fusarium as drug target resource in drug research and development

Family Cites Families (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8810120D0 (en) 1988-04-28 1988-06-02 Plant Genetic Systems Nv Transgenic nuclear male sterile plants
EP1090999B1 (en) 1989-08-10 2011-01-19 Bayer BioScience N.V. Plant with modified flowers
FR2667078B1 (en) 1990-09-21 1994-09-16 Agronomique Inst Nat Rech DNA SEQUENCE GIVING MALE CYTOPLASMIC STERILITY, MITOCHONDRIAL, MITOCHONDRIA AND PLANT CONTAINING THE SAME, AND PROCESS FOR THE PREPARATION OF HYBRIDS.
DE675198T1 (en) 1993-10-01 1996-06-27 Mitsubishi Corp GENES IDENTIFY THE STERILE PLANT CYTOPLASMA AND METHOD FOR PRODUCING HYBRID PLANTS BY USE THEREOF.
US5747518A (en) 1995-04-11 1998-05-05 Mitsui Toatsu Chemicals, Inc. Substituted thiophene derivative and agricultural and horticultural fungicide containing the same as active ingredient
GB9513881D0 (en) 1995-07-07 1995-09-06 Zeneca Ltd Improved plants
DE19531813A1 (en) 1995-08-30 1997-03-06 Basf Ag Bisphenylamides
CA2193938A1 (en) 1996-12-24 1998-06-24 David G. Charne Oilseed brassica containing an improved fertility restorer gene for ogura cytoplasmic male sterility
JP2003525051A (en) 2000-03-01 2003-08-26 リサーチ・アンド・ディベロップメント・インスティチユート・インコーポレイテッド Transgenic plants with improved seed yield, biomass, and harvest index
DE10136065A1 (en) 2001-07-25 2003-02-13 Bayer Cropscience Ag pyrazolylcarboxanilides
DE10215292A1 (en) 2002-02-19 2003-08-28 Bayer Cropscience Ag New N-biphenylyl-1-methyl-3-(di- or trifluoromethyl)-1H-pyrazole-4-carboxamides, useful as microbicides, especially fungicides and bactericides for protection of plants or materials such as wood
IL163692A0 (en) 2002-03-05 2005-12-18 Syngenta Participations Ag O-cyclopropyl-carboxanilides and their use as fungicides
DE60333280D1 (en) 2002-05-15 2010-08-19 Monsanto Technology Llc PROCESS FOR INCREASING THE SEED WEIGHT IN A PLANT
EP1389614A1 (en) 2002-08-12 2004-02-18 Bayer CropScience S.A. Novel N-[2-(2-Pyridyl)ethyl]benzamide derivatives as fungicides
NZ537608A (en) 2002-08-12 2006-04-28 Bayer Cropscience S Novel 2-pyridylethylbenzamide derivative
GB0224316D0 (en) 2002-10-18 2002-11-27 Syngenta Participations Ag Chemical compounds
EP1493328A1 (en) 2003-07-04 2005-01-05 Institut National De La Recherche Agronomique Method of producing double low restorer lines of brassica napus having a good agronomic value
ES2439892T3 (en) * 2003-08-26 2014-01-27 Basf Se Plant growth promotion method using amide compounds
DE10347090A1 (en) * 2003-10-10 2005-05-04 Bayer Cropscience Ag Synergistic fungicidal drug combinations
CN104178511A (en) 2004-07-31 2014-12-03 梅坦诺米克斯有限公司 Preparation of organisms with faster growth and/or higher yield
GB0418048D0 (en) 2004-08-12 2004-09-15 Syngenta Participations Ag Method for protecting useful plants or plant propagation material
GB0418047D0 (en) 2004-08-12 2004-09-15 Syngenta Participations Ag Fungicidal compositions
US8030548B2 (en) 2004-08-26 2011-10-04 Dhara Vegetable Oil And Foods Company Limited Cytoplasmic male sterility system for Brassica species and its use for hybrid seed production in indian oilseed mustard Brassica juncea
DE102004045242A1 (en) 2004-09-17 2006-03-23 Bayer Cropscience Ag Synergistic fungicidal drug combinations
DE102005007160A1 (en) 2005-02-16 2006-08-24 Basf Ag Pyrazolecarboxylic acid anilides, process for their preparation and compositions containing them for controlling harmful fungi
MX2007008802A (en) * 2005-02-22 2007-09-07 Basf Ag Composition and method for improving plant health.
DE102005025989A1 (en) 2005-06-07 2007-01-11 Bayer Cropscience Ag carboxamides
EP1984480B1 (en) * 2006-02-03 2015-07-15 Basf Se Use of fungicides for increasing the quality and optionally the quantity of oil-plant products
WO2008095913A2 (en) 2007-02-06 2008-08-14 Basf Se Pesticidal mixtures
JP2010524483A (en) * 2007-04-23 2010-07-22 ビーエーエスエフ ソシエタス・ヨーロピア Enhanced plant productivity by combining chemicals and transgenic modifications
BRPI0811185A2 (en) 2007-05-23 2014-10-07 Cropdesign Nv METHOD FOR INTENSIFYING YIELD-RELATED PLANT CHARACTERISTICS IN RELATION TO PLANTS OF CONTROL, PLANT, PART OF PLANT OR PLANT CELL, CONSTRUCTION, USE OF A CONSTRUCTION PLANT WITHIN THE CARDENTIAL CONGRENDED PLANT CONTROL PLANTS, TRANSGENIC PLANT, HARVESTING PARTS OF A PLANT, PRODUCTS DERIVED FROM A PLANT, AND USE OF A NUCLEIC ACID SEQUENCE
WO2009000407A1 (en) 2007-06-22 2008-12-31 Bayer Cropscience Ag Method for reducing the phytotoxicity of azoles on dicotyledonous plants by adding additives
EP2071953A1 (en) * 2007-12-21 2009-06-24 Bayer CropScience AG Use of N-(3',4' dichlor-5-fluor-1, 1'-biphenyl-2-yl)-3-(difluormethyl)-1-methyl-1H-pyrazol-4-carboxamide (Bixafen)
US20110105579A1 (en) * 2008-02-05 2011-05-05 Ronald Wilhelm Plant Health Composition
JP2011511032A (en) * 2008-02-05 2011-04-07 ビーエーエスエフ ソシエタス・ヨーロピア Plant health composition
EA018181B1 (en) 2008-02-28 2013-06-28 Басф Се Method for protecting cereals from being infected by fungi
EP2105049A1 (en) * 2008-03-28 2009-09-30 Bayer CropScience AG Method of plant growth promotion using amide compounds
GB0812028D0 (en) 2008-07-01 2008-08-06 Syngenta Participations Ag Fungicidal compositions
EP2039771A2 (en) * 2009-01-06 2009-03-25 Bayer CropScience AG Method for improved utilization of the production potential of transgenic plants
EP2255626A1 (en) * 2009-05-27 2010-12-01 Bayer CropScience AG Use of succinate dehydrogenase inhibitors to increase resistance of plants or parts of plants to abiotic stress
EP2437595B1 (en) 2009-06-02 2018-10-31 Bayer CropScience AG Use of fluopyram for controlling sclerotinia ssp
EP2301350A1 (en) 2009-09-16 2011-03-30 Bayer CropScience AG Use of succinate dehydrogenase inhibitors for increasing the content of desired ingredients in crops

Also Published As

Publication number Publication date
EP2353387A1 (en) 2011-08-10
EP2531031A2 (en) 2012-12-12
PL2531031T3 (en) 2017-03-31
LT2531031T (en) 2017-01-25
EA201290718A1 (en) 2013-02-28
JP5837510B2 (en) 2015-12-24
EA029859B1 (en) 2018-05-31
US20110196000A1 (en) 2011-08-11
US9215872B2 (en) 2015-12-22
WO2011095496A3 (en) 2012-05-31
DK2531031T3 (en) 2017-01-30
HUE032741T2 (en) 2017-10-30
CA2788966C (en) 2018-01-30
AR081620A1 (en) 2012-10-10
JP2013518847A (en) 2013-05-23
EP2531031B1 (en) 2016-11-02
WO2011095496A2 (en) 2011-08-11
UA109894C2 (en) 2015-10-26

Similar Documents

Publication Publication Date Title
CA2788966C (en) Use of succinate dehydrogenase (sdh) inhibitors in treating plant species of the family of true grasses
CA2580371C (en) Synergistic fungicidal active substance combinations
DK2356905T3 (en) Synergistic fungicidal combination of active
CA2763835C (en) Use of succinate dehydrogenase inhibitors for controlling sclerotinia spp.
PT2193714E (en) Fungicidal compositions
NO335622B1 (en) Synergistic, fungicidal active substance combinations
JP2013512934A (en) Pesticide mixture
MX2008012707A (en) Fungicidal compositions.
US9049865B2 (en) Use of fungicidal active substances for controlling mycoses on plants of the palm family
EA025669B1 (en) Method of plant growth promotion using carboxamide derivatives
EA026838B1 (en) Method for treating plants against fungi resistant to fungicides using carboxamide or thiocarboxamide derivatives
JP2015536925A (en) Methods for enhancing tolerance to abiotic stress in plants using carboxamide or thiocarboxamide derivatives
AU2019343723A1 (en) Use of the succinate dehydrogenase inhibitor fluopyram for controlling claviceps purpurea and reducing sclerotia in cereals
US20220369638A1 (en) Use of the succinate dehydrogenase inhibitor pydiflumetofen for controlling claviceps purpurea and reducing sclerotia in cereals
EA044476B1 (en) APPLICATION OF SUCCINATE DEHYDROGENASE INHIBITOR FLUOPYRAM TO COMBAT CLAVICEPS PURPUREA AND/OR REDUCING THE NUMBER OF SCLEROTIUMS IN WHEAT

Legal Events

Date Code Title Description
EEER Examination request

Effective date: 20151215