EP1778014A1 - Utilisation d'acide s-abscisique pour ameliorer l'ecussonnage de fruits, pour produire des fruits pathenocarpiques et comme inhibiteur de croissance - Google Patents

Utilisation d'acide s-abscisique pour ameliorer l'ecussonnage de fruits, pour produire des fruits pathenocarpiques et comme inhibiteur de croissance

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Publication number
EP1778014A1
EP1778014A1 EP05771858A EP05771858A EP1778014A1 EP 1778014 A1 EP1778014 A1 EP 1778014A1 EP 05771858 A EP05771858 A EP 05771858A EP 05771858 A EP05771858 A EP 05771858A EP 1778014 A1 EP1778014 A1 EP 1778014A1
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EP
European Patent Office
Prior art keywords
fruit
abscisic acid
weeks
treatment
aba
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.)
Withdrawn
Application number
EP05771858A
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German (de)
English (en)
Inventor
Koen Quaghebeur
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Globachem NV
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Globachem NV
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Filing date
Publication date
Application filed by Globachem NV filed Critical Globachem NV
Publication of EP1778014A1 publication Critical patent/EP1778014A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION 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
    • A01N49/00—Biocides, pest repellants or attractants, or plant growth regulators, containing compounds containing the group, wherein m+n>=1, both X together may also mean —Y— or a direct carbon-to-carbon bond, and the carbon atoms marked with an asterisk are not part of any ring system other than that which may be formed by the atoms X, the carbon atoms in square brackets being part of any acyclic or cyclic structure, or the group, wherein A means a carbon atom or Y, n>=0, and not more than one of these carbon atoms being a member of the same ring system, e.g. juvenile insect hormones or mimics thereof
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION 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
    • A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
    • A01N37/36—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing at least one carboxylic group or a thio analogue, or a derivative thereof, and a singly bound oxygen or sulfur atom attached to the same carbon skeleton, this oxygen or sulfur atom not being a member of a carboxylic group or of a thio analogue, or of a derivative thereof, e.g. hydroxy-carboxylic acids
    • A01N37/38—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing at least one carboxylic group or a thio analogue, or a derivative thereof, and a singly bound oxygen or sulfur atom attached to the same carbon skeleton, this oxygen or sulfur atom not being a member of a carboxylic group or of a thio analogue, or of a derivative thereof, e.g. hydroxy-carboxylic acids having at least one oxygen or sulfur atom attached to an aromatic ring system
    • A01N37/40—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids containing at least one carboxylic group or a thio analogue, or a derivative thereof, and a singly bound oxygen or sulfur atom attached to the same carbon skeleton, this oxygen or sulfur atom not being a member of a carboxylic group or of a thio analogue, or of a derivative thereof, e.g. hydroxy-carboxylic acids having at least one oxygen or sulfur atom attached to an aromatic ring system having at least one carboxylic group or a thio analogue, or a derivative thereof, and one oxygen or sulfur atom attached to the same aromatic ring system

Definitions

  • the invention relates to the use of S-Absci ⁇ sinklare to promote the fruit set and for the generation of parthenocarp fruits in crops, especially in fruit growing.
  • the invention further relates to the use of S-abscisic acid as a growth inhibitor in crops, especially in fruit growing.
  • the invention extends to methods for promoting the fruit set, for producing parthenokarper fruits and for regulating the growth in crops, especially in fruit crops.
  • the aim is to achieve high crop yields when cultivating crops in agriculture or horticulture, with the aim of achieving this goal with the least possible use of material, such as fertilizers and pesticides, and with as little work as possible.
  • material such as fertilizers and pesticides
  • the use of chemical fertilizers or convinced ⁇ medium must be largely or completely omitted.
  • An increase in yield can generally be achieved by increasing the harvest volume. This can in turn be achieved by promoting flower formation, promoting the fruit set, and increasing the size and weight of the individual fruits.
  • “Fruit batch” is generally understood to mean the percentage of flowers that have begun to develop into a fruit. In general, the Frucht ⁇ approach is 10 to 30%, depending on the year, species, variety, flower density and weather conditions.
  • the physiological processes underlying this phenomenon are still largely unexplained.
  • the fruit set is partly determined by the physiological state of the plant or the fruit tree, on the other hand also by the weather conditions during flowering, which are of crucial importance for pollen transmission (pollination) and for the viability and further development of the ovules.
  • the mentioned thinning methods are disadvantageous because they cause additional work and costs; In addition, although this promotes the fruit set in the remaining flowers, but at the expense of the flowers removed during the thinning.
  • the said foliar application is also associated with an additional workload and additional costs; Moreover, this measure is not applicable to organic crops.
  • growth inhibitors be ⁇ known, for.
  • the disadvantage is that these growth inhibitors must be applied in high dosages per hectare and that they represent potential environmental risks. For the ecological or natural production of fruits, the use of such growth inhibitors is completely excluded. This also applies to newer types of growth inhibitors that are effective at lower dosages.
  • Abscisic acid is a phytohormone responsible for the initiation and maintenance of bud dormancy during the winter dormant period in woody perennial plants. Furthermore, it should have an influence on the water balance of the plant, and seed germination can be inhibited by ABA.
  • ABA is considered to be the stress hormone of plants, ie ABA is produced in plants under stress conditions (eg dryness or temperature stress).
  • stress conditions eg dryness or temperature stress
  • ABA can cause defoliation (leaf repulsion), fruit waste and rest conditions and in fruit trees a renewed expulsion, which is caused by certain weather conditions, verhin ⁇ countries. Further details on the type of application are not provided, in particular information about the time of application and the dose is missing.
  • WO 03 096806 A2 describes the use of ABA for preventing the bursting of cherries, for increasing the frost resistance and for increasing the sugar content in fruits.
  • U.S. Patent 5,173,106 discloses the use of ABA to inhibit flowering and to extend the flowering time of flowering plants.
  • S-abscisic acid S-ABA
  • crops to promote the fruit set and / or to produce parthenokarper fruits
  • S-abscisic acid as a growth inhibitor in crops becomes.
  • S-ABA can be used to promote fruit set in crops. This effect is surprising, above all, since ABA has been described as a plant hormone which is responsible for the initiation and maintenance of rest conditions or for the inhibition of flowering and the extension of the duration of flowering, or for the initiation of the fruiting fall.
  • the improvement in fruit set produced by S-ABA makes it possible to increase the yield of the crop and to reduce the expenditure for conventional measures, such as nutripriming measures or leaf fertilization, or to completely dispense with such measures .
  • the increase in yield is due to an increase in the average number of fruits that can be harvested by each plant and an increase in the total mass of fruits; it is not based solely on a volume or weight gain of the individual fruits. Since the application is hormone at S-ABA is a naturally occurring phyto / toxicological harmlessness is re- covered and can for the purpose of biological Landwirt ⁇ shaft suitable.
  • a further surprising advantage of the present invention is that the use of S-ABA makes it possible to produce parthenocarp fruits.
  • This has the advantage that the fruit set is independent of the pollination, so that even under unfavorable weather conditions, if a pollination example, bees or other insects is not or only in unzu ⁇ reaching extent possible, yet sufficient fruit set is achieved.
  • the production of parthenocarp fruits is also advantageous if, for other reasons, sufficient pollination can not take place.
  • Parthenocarpy (pseudocavity) in pome fruit has been described in the literature so far only in certain pear varieties Be ⁇ where this phenomenon occurs spontaneously.
  • parthenocarpic fruits caused by S-ABA has been observed in particular in pome fruit (eg apple, pear) and can be advantageously used in particular in these cultures.
  • parthenocarp fruits eg, seedless apples or pears
  • S-ABA serotonin-like protein
  • an improved harvest yield is achieved by treatment with S-ABA, but also in the following year - contrary to the alternation phenomenon - an at least normal harvest yield is achieved.
  • alternance if for a year with strong Fruchtbehang a year with low Fruit set and correspondingly low yield follows. This behavior is known mainly from pome fruit. It is genetically determined and can also be triggered by unfavorable environmental influences (late frost, nutrient deficiency, disease infestation or pests).
  • S-ABA can be used as a growth inhibitor in crops.
  • the growth inhibition caused by S-ABA manifests itself essentially in an inhibition of the growth of the shoot axis and the lateral shoots.
  • the length growth of the shoots is suppressed, whereby the shoots formed in the growth phase on average have a shorter length compared to plants which are not treated with S-ABA.
  • the growth inhibition is evident from the fact that the closing of the buds occurs at a much earlier time than in plants that were not treated with S-ABA.
  • S-ABA as a growth inhibitor makes it possible to abstain from the usual cutting measures or to reduce the scope of such measures. Furthermore, this makes it possible to dispense with the application of synthetic growth inhibitors, or to reduce the dose of such synthetic growth inhibitors.
  • S-ABA has a growth-inhibiting effect which is comparable to the effect of synthetic growth inhibitors was not to be expected on account of the properties of S-ABA described in the specialist literature.
  • the growth inhibition caused by S-ABA further causes the fruits to have a higher quality, for example due to the improved light admission and the improved aeration. B. have a better coloration.
  • the growth inhibition brought about by S-ABA also leads to the crops, especially fruit trees, producing a greater number of flowers and fruits in the following year than would be the case without such treatment.
  • S-ABA is advantageous compared to synthetic agents, since S-ABA is toxicologically unobjectionable and can also be used without reservation in organic farming and for the production of "biological" fruits.
  • S-ABA i. H. (S) -5- (1-Hydroxy-2,6,6-trimethyl-4-oxo-2-cyclohexenyl) -3-methyl-cis / trans-2,4-pentadienoic acid.
  • the substance is produced by fermentation and is commercially available.
  • S-ABA is to be distinguished from the "acidic” product called “Domain”, which is a mixture of isomers that has a relatively low biological activity compared to S-ABA, as it contains a high proportion of non- containing active isomers.
  • Domain is a mixture of isomers that has a relatively low biological activity compared to S-ABA, as it contains a high proportion of non- containing active isomers.
  • S-ABA is the active isomer; According to the present invention, only S-ABA is used instead of an isomer mixture.
  • S-ABA is used in fruit-growing, in particular pome fruit (eg apple, pear, quince, spout [Sorbus doxnestica]), stone fruits (eg cherry, sour cherry, plum, plum, peach, apricot , Nectarine) and berry fruits (eg strawberries, blackcurrants, gooseberries, raspberries, blackberries).
  • pome fruit eg apple, pear, quince, spout [Sorbus doxnestica]
  • stone fruits eg cherry, sour cherry, plum, plum, peach, apricot , Nectarine
  • berry fruits eg strawberries, blackcurrants, gooseberries, raspberries, blackberries.
  • S-ABA can advantageously be used for the same purposes in the cultivation of citrus fruits (eg. Oranges, clementines ,. Tangerines, satsumas, grapefruit, pomelos, lemons, limes, limes).
  • the invention further extends to the use of S-ABA in the cultivation of cereals, in particular rice, Rasengrä ⁇ water, or of oilseeds, in particular oilseed rape, or Baum ⁇ wool, where a caused by S-ABA inhibition of growth are also observed could.
  • S-ABA is particularly preferably used in apple or pear cultures; In stone fruit growing, S-ABA is particularly preferably used in cherry cultures.
  • S-ABA In the case of pome fruit, especially in apple or pear cultures, the use of S-ABA according to the invention improves the fruit set and the formation of parthenoparre fruit. In addition, an inhibition of the vegetative growth caused by S-ABA can be observed in these fruit cultivars.
  • the improvement in the fruit set - resulting in a correspondingly increased number of fruits per tree - is at least 5%, preferably at least 10%, more preferably at least 15%, compared to untreated trees.
  • These additionally produced fruits are almost exclusively parthenocarp fruits.
  • a reduction in the average size of the fruits is associated; However, this is to be regarded as an advantage in most cases (depending on the variety).
  • the growth inhibition induced by S-ABA can be determined on the basis of the average number of closed buds present on the trees. Treatment with S-ABA causes almost complete closure of all buds compared to untreated trees. By the Application of S-ABA is prematurely initiated the closure of the buds.
  • S-ABA In the case of stone fruit, especially in cherry cultures, the use of S-ABA according to the invention also improves the fruit set. In addition, S-ABA inhibition of vegetative growth can be observed in these fruit cultures.
  • the improvement of the fruit set in stone fruit, in particular in cherry crops, caused by S-ABA, based on the fruit set on untreated trees, is preferably at least 50%, more preferably at least 100%, and especially at least 125%; This means that on average at least a doubling of the Frucht ⁇ approach can be achieved.
  • S-abscisic acid is preferably used according to the present invention in an amount of from 0.2 to 20 g / ha, more preferably from 1 to 10 g / ha, in particular from 1.5 to 2.5 g / ha.
  • the optimal dose is 2 g / ha.
  • S-ABA is used in the form of a formulation which additionally contains at least one substance from the group of UV filters in order to prevent premature inactivation of the active ingredient by sunlight.
  • Suitable UV filter substances are known to the person skilled in the art.
  • the active ingredient S-ABA can be formulated and administered in a manner known to the person skilled in the art. Suitable types of formulation are, in particular, the following: water-dispersible powders (WP), water-soluble powders (SP), water-soluble concentrates (SL), emulsion concentrates (EC), concentrated emulsions (EW) such as oil-in-water and water Water-in-oil emulsions; sprayable solutions and emulsions, capsule Suspensions (CS) / oil- or water-based dispersions (SC), suspo-emulsions, suspension concentrates, granules (GR) in the form of micropowder, spray, elevator and adsorption granules, water-soluble granules (SG), water-dispersible Granules (WG), microcapsules and tablets.
  • WP water-dispersible powders
  • SP water-soluble powders
  • SL water-soluble concentrates
  • EC emulsion concentrates
  • EW concentrated
  • a tank mixture can be prepared from an S-ABA-containing formulation, for example from one of the above-mentioned formulations, at the time of use with the addition of water and this in a known manner with a spray device sprayed on the cultures.
  • the necessary formulation auxiliaries such as inert materials, excipients, surfactants, solvents and other additives, are also known and are described, for example, in: Watkins, "Handbook of Insecticidal Dust Diluents and Carriers", 2nd Edition, Darland Books, Caldwell NJ; H. v. Olphen "Instruc- tion to Clay Colloid Chemistry", 2nd Edition, J. Wiley & Sons, NY, Marsden “Solvents Guide”, 2nd Edition, Interscience, NY 1963; McCutcheon's "Detergents and Emulsifiers Annual", MC Publ. Corp., Ridgewood NJ; Sisley and Wood, “Encyclopaedia of Surface Active Agents", Chem. Publ. Co.
  • Injection powders are preparations which are uniformly dispersible in water and, in addition to the active ingredient, also contain diluents or inert substances, for example polyoxethylated alkylphenols, polyoxethylated fatty alcohols and fatty amines, fatty alcohol polyglycol ether sulfates, alkanesulfonates or alkylarylsulfonates and dispersants, eg.
  • lignosulfonic acid sodium, 2,2-dinaphthylmethane-6,6 'disulfonic acid sodium, dibutylnaphthalenesulfonate sodium or oleylmethyltaurinate may contain sodium.
  • Particularly ethoxylated sorbitan esters and siloxanes have proven suitable for the use of S-ABA. By adding them directly into the preparation or as a tank mixing partner, the amount of S-ABA can be reduced and the effects can be increased.
  • Emulsifiable concentrates are prepared by dissolving the active substance in an organic solvent, eg. As butanol, cyclohexanone, dimethylformamide, xylene or even higher-boiling aromatics or hydrocarbons with the addition of one or more emulsifiers.
  • organic solvent eg. As butanol, cyclohexanone, dimethylformamide, xylene or even higher-boiling aromatics or hydrocarbons.
  • alkylarylsulfonic acid calcium salts such as calcium dodecylbenzenesulfonate or nonionic emulsifiers
  • fatty acid polyglycol esters alkylaryl polyglycol ethers, fatty alcohol polyglycol ethers, propylene oxide / ethylene oxide condensation products (eg block polymers), alkyl polyethers, Sorbitan fatty acid esters, polyoxyethylene sorbitan fatty acid esters or polyoxethylene sorbitol esters.
  • Granules can be prepared either by spraying the active ingredient onto adsorptive, granulated inert material or by applying active substance concentrates by means of adhesives, eg. As polyvinyl alcohol, polyacrylic acid sodium or mineral oils on the Oberflä ⁇ surface of carriers such as sand, kaolinites or granulated inert material. Also, suitable active ingredients can be used in the usual way for the production of fertilizer granules - optionally mixed with fertilizers - granulated.
  • adhesives eg. As polyvinyl alcohol, polyacrylic acid sodium or mineral oils on the Oberflä ⁇ surface of carriers such as sand, kaolinites or granulated inert material.
  • suitable active ingredients can be used in the usual way for the production of fertilizer granules - optionally mixed with fertilizers - granulated.
  • the active ingredient formulations mentioned optionally contain the customary adhesion, wetting, dispersing, emulsifying, penetrating, solvent, filling or carrier substances.
  • the content of S-ABA is preferably 1 to 250 g / l, particularly preferably 2 to 100 g / l, in particular 5 to 50 g / l.
  • the proportion of the UV filter (s) is preferably 0.05 to 10 g / l, more preferably 0.1 to 5 g / l.
  • the content of S-ABA is preferably 1 to 50% by weight, more preferably 2 to 25% by weight, in particular 5 to 10% by weight. 5 S.
  • the proportion of / the UV filter is preferably 0.1 to 10 wt .-%, particularly preferably 0.5 to 5 wt .-%.
  • the formulations present in commercially available form are optionally diluted in the customary manner, for.
  • emulsifiable concentrates, dispersions and water-dispersible granules by means of water as a liquid carrier.
  • S-ABA is sprayed onto the crops in a spray volume of 250 to 1000 l / ha.
  • S-ABA is preferably at the beginning of the growing season, in particular in the period of 1 to 3 weeks after flowering. This may be a one-time use, or the use of S-ABA may be one or more times during the growing season until harvest. be repeated once, preferably at intervals of 1 to 4 weeks, more preferably at intervals of 2 to 3 weeks.
  • the treatment of the plants with S-ABA can be carried out during the entire vegetation period.
  • the optimal treatment time is - in pome fruit and stone fruit, especially in apple orchards and cherry cultures - in the period immediately after flowering and up to 8 weeks after flowering.
  • Another embodiment of the invention provides that the first or only application of S-ABA takes place during flowering.
  • the invention further includes methods for promoting fruit set and / or for producing parthenocarp fruits in crops, especially in pome fruit or stone fruit, and methods for inhibiting growth in crops, these methods each provide a treatment of the plants with S-ABA.
  • methods for promoting fruit set and / or for producing parthenocarp fruits in crops, especially in pome fruit or stone fruit and methods for inhibiting growth in crops, these methods each provide a treatment of the plants with S-ABA.
  • pome fruit crops in particular apple or pear crops, are used to improve fruit set and / or to produce parthenocarp fruits with S-ABA at a rate of from 0.2 to 20 g / ha, preferably 1 to 10 g / ha, especially 1.5 to 2.5 g / ha.
  • the first or only treatment is preferably carried out after flowering, more preferably in the period of 1 to 3 weeks after flowering.
  • one, two or more treatments may be performed during the period until harvest with the further treatment (s) preferably 1 to 4 weeks, especially 2 to 3 weeks after the first or second treatment the previous treatment is / are made.
  • stone fruit crops in particular cherry trees
  • S-ABA with an amount of from 0.2 to 20 g / ha, preferably from 1 to 10 g / ha, in particular 1.5 to 2.5 g / ha, behan ⁇ delt.
  • the treatment is preferably carried out immediately after the end of the flowering or in the period up to three weeks after flowering. After this treatment, at least one further treatment can be carried out in the period up to the harvest, wherein the further treatment (s) is preferably carried out 1 to 4 weeks, in particular 2 to 3 weeks after the first or the respective preceding treatment. become.
  • fruit crops in particular pome fruit or stone fruit crops, are used to inhibit growth with S-ABA at a rate of from 0.2 to 20 g / ha, preferably from 1 to 10 g / ha, in particular from 1.5 to 2.5 g / ha, be ⁇ , wherein the treatment is carried out during flowering or taken in the period up to three weeks after the flower is taken.
  • at least one further treatment can be carried out during the period up to the harvest, the further treatment (s) preferably being carried out 1 to 4 weeks, in particular 2 to 3 weeks after the first or the respective preceding treatment.
  • repeating treatment with S-ABA is beneficial.
  • the treatment of useful plants with S-ABA for the purpose of inhibiting vegetative growth is particularly advantageous in all those cases in which the plants (eg cereals, rapeseed) as a result of excessive longitudinal growth could be weakened and therefore not have sufficient stability against weather influences such as wind # rain, hail, etc.
  • Treated pome fruit crops apple trees, variety Jonagored.
  • the experiment proves the improvement of the fruit set caused by S-ABA.
  • the number of apples per tree increased by 17% compared to the control, the yield (in kg) increased by 8%.
  • the yield in kg
  • a significant increase in yield was found (84%), as well as in the class A2 ++ with the optimal coloration of the fruits; Here almost a doubling of the yield was achieved.
  • Example 2 Promoting the fruit set, producing parthenocarp fruits, and inhibiting the growth of pome fruit.
  • Treated pome fruit crops apple trees, variety Boskoop.
  • the orchard was opened on April 23, i. during flowering, sprayed. Another plot was sprayed on May 20, 2004. S-ABA was applied at a dose of 2 g / ha. The same formulation was used for the control experiment, but without S-ABA. The number of fruit trees per plot was 40.
  • Example 1 the results of these results are used to demonstrate the promotion of fruit set by S-ABA. However, this effect was observed only in that cell which had been treated with S-ABA 3 weeks after flowering (20 May). The total number of apples per tree increased by about 21% compared to the control.
  • Treated stone fruit crops Cherry trees, variety Summit.
  • the orchard was sprayed one week after flowering with S-ABA; the dose was 2 g / ha.
  • the same formulation was used for the control experiment but without S-ABA.
  • the number of fruit trees per plot was 5. The following results were obtained:
  • test results prove the improvement of the fruit set caused by S-ABA.
  • S-ABA the number of fruits was observed compared to the control plot (the size and weight of the individual fruits were approximately equal in both plots, the weight per cherry being increased by the treatment not significantly influenced by S-ABA.
  • Parthenocarp fruits were not observed in this case; Parthenocarpy does not occur in stone fruits.
  • the present invention enables an increase of the harvest yield by an improvement of the fruit set, without thereby adversely changing the weight or the quality of the individual fruits. Rather, the use of S-ABA additionally causes an improvement in the quality of the fruit. Furthermore, it could be demonstrated that according to vorlie ⁇ gender invention by the application of S-ABA inhibition of vegetative growth can be effected.

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  • Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Pest Control & Pesticides (AREA)
  • Plant Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Insects & Arthropods (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

L'invention concerne l'utilisation d'acide S-abscisique pour favoriser l'écussonnage de fruits et/ou porduire des fruits parthénocarpiques dans des plantes utiles ainsi que l'utilisation d'acide S-abscisique comme inhibiteur de croissance de plantes utiles. L'invention concerne également un procédé de traitement de plantes utiles par de l'acide S-abscisique aux fins mentionnées.
EP05771858A 2004-08-17 2005-08-16 Utilisation d'acide s-abscisique pour ameliorer l'ecussonnage de fruits, pour produire des fruits pathenocarpiques et comme inhibiteur de croissance Withdrawn EP1778014A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004039736 2004-08-17
PCT/EP2005/008850 WO2006018266A1 (fr) 2004-08-17 2005-08-16 Utilisation d'acide s-abscisique pour ameliorer l'ecussonnage de fruits, pour produire des fruits pathenocarpiques et comme inhibiteur de croissance

Publications (1)

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EP1778014A1 true EP1778014A1 (fr) 2007-05-02

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US (1) US8999892B2 (fr)
EP (1) EP1778014A1 (fr)
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WO2012038935A2 (fr) 2010-09-23 2012-03-29 Globachem Utilisation d'une composition pour augmenter le rendement des cultures
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CN118340065A (zh) * 2024-06-12 2024-07-16 云南省农业科学院热区生态农业研究所 一种油梨保果方法

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See also references of WO2006018266A1 *

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