WO2003090535A1

WO2003090535A1 - Plan growth regulating composition for improving fruit quality

Info

Publication number: WO2003090535A1
Application number: PCT/CN2002/000280
Authority: WO
Inventors: Xianguo Fan; Hubao Chen; Hong Tan; Daxiang Li
Original assignee: Sichuan Lomon Bio Technology Co., Ltd.; Chengdu Institute Of Biology Chinese Academy Of Sciences
Priority date: 2002-04-23
Filing date: 2002-04-23
Publication date: 2003-11-06
Also published as: CN1209015C; CN1379980A

Abstract

The present invention relates to a plant growth regulating composition for improving fruit quality, comprising as active components A) a natural type abscisic acid, B) dichlorprop and optional C) at least one plant growth regulator selected from the group consisting of glyphosate, jasmonic acid, methyl jasmonate and ethephon, in addition to general inert auxiliaries.

Description

Technical field of plant growth regulating composition with improved fruit quality

The present invention relates to a plant growth regulating composition containing natural abscisic acid which can improve fruit quality, and the international classification number belongs to A01N37 / 06.

Background technique

Natural abscisic acid (S-ABA), common name of pesticide: S-actin. Molecular formula: Chemical name: 5- (-Hydroxy-2 ', 6', 6'-trimethyl-4'-oxo-2'-cyclohexene- -yl) -3-methyl-2- 2-cis -4-trans-pentadienoic acid, chemical structure is as follows

Chemical structure of S-ΑΒΛ

In 1963, ABA was first extracted from cotton young fruit by Adclicott et al. For more than three decades, scientists from various countries have conducted extensive and in-depth studies on the effects of plant physiological activities. Studies have shown that ABA is a plant's "stress-resistance-inducing factor" and "balanced growth factor", and it can initiate plant stress-resistance gene expression. Activate the plant's endogenous immune system, induce the plant to resist biotic and abiotic stresses (drought, low temperature, saline-alkali, diseases and insect pests), improve the plant's ability to resist drought, cold, disease and saline-alkali, and enhance plant autoimmunity It has important functions such as disease resistance and promoting the balanced growth of crops. It can be widely used in agriculture, forestry, animal husbandry, landscaping, and ecological vegetation restoration.

Anti-drop spirit is 2,4-D propionic acid (Dichlorprop), chemical name: 2- (2,4-dichlorophenoxy) propionic acid, for example, in the "New English-Chinese Pesticide Dictionary", edited by Hu Xiaoxing, foreign language Publishing House, 1999. Various mixtures containing 2, 4-D, such as 25 mg / kg 2, -D + 25 mg / kg GA 25, 100 published in Journal of Zhejiang Agricultural University 22 (2): 191-195, 1996 mg / kg PCPA + 5, 25mg / kg GA and 25mg / kg CPPU + 25mg / kg 2, 4- D + 25mg / kg GA treatment of cucumber and cucumber gourd to improve fruit set rate; Liu Youqi et al. in Journal of Hubei Institute of Technology 2000, 15 (3): 60-62 discloses various culture media for inducing embryogenic callus including MS + 3.0 mg / L2, 4-D +0.1, 0.5, 1. 0, 3 Induction effect of Omg / L BA on pearl flower callus and "Pesticide Mixing and Mixing" edited by Zhang Ruiting, Chemical Industry Press published in 1987 that 2, 4_D (10ppm) + gibberellin (lOppm) can Extend Navel orange storage time on the tree.

The inventors have confirmed through experiments that spraying the whole plant with 500 ppm S-ABA alone during the grape color transformation period can promote grape coloring and increase fruit sweetness, but it has a inhibitory effect on new leaves; 15-20 ppm anti-dropper alone has certain effects Coloring effect, but mainly prevent late-graining, and when S- ΛΒΑ is used in combination with anti-dropling, it has obvious synergistic activity, which can promote grape coloring and increase sugar content, and also greatly reduce post-harvest graining. Compared with a single use of 500 ppm S-ABA, the cost is greatly saved, and the side effects in the later period are improved, so the present invention is completed.

Summary of the Invention

The object of the present invention is to provide a plant growth regulating composition containing natural abscisic acid, which is characterized in that the composition includes A) natural abscisic acid and B) anti-falling spirit.

The plant growth regulating composition of the present invention may further contain component C) at least one plant growth regulating substance selected from the group consisting of glyphosate, jasmonic acid, methyl jasmonate (PD J) or ethephon.

Surprisingly, the composition of S-ABA, 2,4-D propionic acid and other plant growth regulating substances added to the present invention on crop growth regulating activity exceeds the expected additive effect, mainly On the one hand, the active range of each ingredient is increased; on the other hand, the application concentration of natural abscisic acid and other plant growth regulators is reduced, and the plant growth regulator combination also obtains good plant growth when the single compound is less than the effective concentration Adjust the level. In the present invention, the mixing of ABA and fanglingling has a complementary effect, and in particular, they promote each other in fruit quality, thereby increasing yield and improving quality.

Surprisingly, it has been found that S-ABA can also achieve unexpected synergistic effects with anti-drop spirits and the addition of other plant growth regulators.

Various other plant growth regulators in the present invention: glyphosate, jasmonic acid, methyl jasmonate (PDJ), ethephon, etc. are all known and described in, for example, "Plant Growth Regulators" edited by Xie Jiuyi, Hong Kong China Science and Technology Press, 1992. 5; "New Handbook of Pesticides", Pesticide Inspection Institute of the Ministry of Agriculture, Agricultural Press, 1989; "New Handbook of Pesticides" (Continuation), Pesticide Inspection Institute of the Ministry of Agriculture, Agricultural Press, 1998 Wait.

Generally speaking, the use concentration of S-ABA in the composition of the present invention is 1.0-1000. 0 ppm, preferably 10. 0-500. 0 ppm, most preferably 50, 0-300 · 0 ppm; 0-100. 0ppm, preferably 1. 0-80 · 0 ppm, most preferably 5. 0-40. 0 ppm; glyphosate use concentration of 1.0-200. Oppm, preferably 10. 0-150 Oppm, most preferred

20. 0-100. 0 ppm; methyl jasmonate or jasmonic acid or ethephon is used at a concentration of 0.5-500. 0 ppm, preferably

0-5-100. 0 ppm, most preferably 1.0-50. 0 ppm ₀ Generally, in the composition of the present invention, the ratio (weight ratio) of S-ABA: anti-falling spirit is 1: 0.001-100, preferably 1: 0.01. 10; in the composition of the present invention, S-ABA: anti-falling Spirit: The ratio (weight ratio) of component C is 1: 0.001- 100: 0.001- 100, preferably 1: 0.01- 10: 0.01-10.

In addition, the plant growth regulator composition of the present invention may further contain a synergist. The synergist is at least one of the following components: Cytokini ru calcium gluconate, amino acids, sucrose chelated calcium, vitamins, organic fertilizers, nutrients, mineral elements, citric acid, CaCl, and the like.

The plant growth regulating composition containing the natural abscisic acid of the present invention can be applied to various fruit trees including apple, hawthorn, pear, grape, banana, pineapple, jujube, persimmon, citrus, pomelo, lemon, strawberry, peach, apricot, plum, cherry , Litchi, papaya, mango, etc. It is preferably applied to fruits such as grape, lychee, apple, barberry, pear, citrus, strawberry and the like.

The application dose can be varied within a relatively wide range and depends on the type of application (foliar spray, application, root irrigation, seed dressing, injection, etc.), the type of cultivated plant, the growing period of the plant, climatic conditions and other factors. In general, the composition according to the invention is applied at a dosage of from 0.01 to 2.50 kg of active ingredient / ha. In general, the application dose of the plant growth regulating composition during application is not critical, and it is critical that the abscisic acid concentration during use is maintained at 1-1000 ppm.

The plant growth regulating composition of the present invention is used in a conventional preparation form. They are processed, for example, into emulsifiable concentrates, direct sprayable or dilutable solutions, dilutable emulsions, wettable powders, soluble powders, powders, granules or microcapsules in the usual manner, using adjuvants commonly used in formulation processing technology. . Appropriate to the type of composition, the application method-such as spraying, misting, dusting, wetting, spraying or pouring, is selected according to the intended purpose and prevailing environment.

Formulations are prepared in a known manner, for example by mixing plant growth regulators with said adjuvants, typically a homogeneous mixture of a solvent or a solid carrier and / or milling. Surfactants can also be used in addition to prepare the formulation.

Examples of solvents and solid carriers are described in the second edition of Pesticide Dosage Processing Technology, edited by Liu Yilin (Chemical Industry Press, 1998).

Depending on the plant growth regulator to be processed, suitable surface-active compounds are non-ionic, cationic, anionic and / or amphoteric surfactants and surfactant mixtures with good emulsifying, dispersing and wetting properties.

Examples of suitable nonionic, cationic, anionic and / or amphoteric surfactants are listed in the third edition of "Agrochemical Processing Technology" edited by Liu Zhelin (Chemical Industry Press, Edition Press, 1998). Plant growth compositions usually contain from 0.1% to 99.0% by weight, preferably from 0.1% to 95.0% by weight of active ingredients, from 1.0% to 99.9% by weight 1% 至 25.0% 的 surfactant or liquid processing aid and 0 to 25.0% by weight, preferably from 0.1% to 25.0% by weight.

A particularly preferred formulation composition is as follows:

(% = Percent by weight)

I milk L oil

Active ingredient 1% to 90%, preferably 5% to 20%

Surfactant 1% to 30%, preferably 10% to 20%

Liquid carrier 5% to 94%, preferably 70% to 85%

Powder:

Active ingredient 0.1% to 10%, preferably 0.1% to 5%

Solid loading: 99.9% to 90%, preferably 99.9% to 99%

Suspension:

Active ingredient 5% to 75%, preferably 10% to 50%

94% to 24% water, preferably 88% to 30%

Surfactant 1% to 40%, preferably 2% to 30%

Wettable powder:

Active ingredient 0.5 to 90%, preferably 1 to 80%

Surfactant 0.5 to 20%, preferably 1 to 15%

Liquid carrier 5% to 95%, preferably 15% to 90%

Granules:

Active ingredient 0.1% to 30%, preferably 0.1% to 15%

Solid carrier 99.5% to 70%, preferably 97% to 85%

The invention is illustrated by the following non-limiting examples:

1. EC A) B) C) D) Active ingredient 5% 10% 25% 50% Calcium dodecyl besylate 6% 8% 6% 8% Polyethoxylated castor oil (36 moles E0) 4% 4% 4%

Octylphenol polyethoxy

Compound (7 moles E0) 4% 2%

Cyclohexanone 10% 20%

Aromatic mixture α, -c, 85% 78% 55% 15%

Any desired emulsion by diluting with water the emulsifiable concentrate prepared _t

2. Wettable powder A) B) 0 D)

Active ingredients 5% 25% 50% 80%

Sodium lignosulfonate 4% 3%

Sodium lauryl sulfate 2% 3% 4%

Sodium diisobutylnaphthalenesulfonate 6% 5% 6%

Octylphenol polyethoxy

Compound (7-8 moles E0) 1% 2%

Highly dispersed silicic acid 1% 3% 5% 10%

Kaolin 88% 62% 35%

The active ingredients are thoroughly mixed with the auxiliaries, and the resulting mixture is ground in a suitable mill to obtain a wettable powder, which can be diluted with water to obtain a suspension of any desired concentration.

3.Coated granules A), B) C)

Active component 0.1% 5% 15%

Highly dispersed silicic acid 0.9% 2% 2%

Inorganic carrier (Φ 0. 1- lmm) 99.0% 93% 83%

Such as calcium carbonate or silica

The active ingredient was dissolved in N-pyrrolidone, and the solution was sprayed onto the carrier, and the solvent was removed by vacuum drying.

4.Coated granules A) B) C)

Active component 0.1% 5% 15%

Polyethylene glycol (MW200) 1. 0% 2% 3%

Highly dispersed silicic acid 0.9% 1% 2%

Inorganic carrier (Φ 0. 1- lmm) 98.0% 92% 80% Such as calcium carbonate or silica

The finely-ground active ingredient was uniformly coated on a carrier wetted with polyethylene glycol in a mixer, thereby obtaining a dust-free powder.

5.Extrusion granules A) B) c) D)

Active ingredient 1% 3% 5% 15%

Sodium lignosulfonate 1.5% 2% 3% 4%

Carboxymethyl cellulose 1.4% 2% 2% 2%

Kaolin 97.0% 93% 90% 79%

The active ingredients are mixed and ground together with the auxiliaries, the mixture is moistened with water, and the above mixture is squeezed and dried.

6. Powder A) B) 0

Active component 0.1% 1% 5%

Talc or chalk 39.9% 49% 35%

Kaolin 60. 0% 50% 60%

Directly available powders are obtained by mixing the active ingredient with a carrier and grinding in a suitable mill.

7. Suspending agent A) B) 0 D)

Active ingredient 3% 10% 25% 50%

Ethylene glycol 5% 5% 5% 5%

Nonylphenol polyethoxy

Compound (15 moles E0)-1% 2%-Sodium lignosulfonate 3% 3% 4% 5%

Carboxymethyl cellulose 1% 1% 1% 1%

37% formaldehyde aqueous solution 0.2% 0.2% 0.2% 0.2%

Silicone Emu Oil Emulsion 0.8% 0.8% 0.8% 0.8%

Water 87% 79% 62% 38%

The finely ground active substance is thoroughly mixed with the adjuvant. Suspensions are obtained in this way, and suspensions of any desired concentration can be prepared by dilution with water.

It is usually convenient to process natural abscisic acid and components B) and C) separately. It is mixed in a mixing ratio and applied in a "barrel mixing" manner.

Each component can be applied simultaneously or separately; when applied separately, the order of application usually does not affect its effect. The plant growth regulating composition containing the natural abscisic acid of the present invention is used to treat plants, and the whole plant can be sprayed before the fruits are colored.

In general, it is critical that the natural abscisic acid concentration during application should be maintained at 1-1000 ppm, preferably

10-500ppm, most preferably 50-300ppm.

The active compounds used according to the invention can also be mixed with other active compounds, such as with known fungicides, pesticides and plant nutrients, to broaden the spectrum of action or prevent the development of resistance and treat various deficiencies. Vegetarian disease. In most cases, synergistic activity is produced, that is, the activity of the mixture exceeds that of a single component.

Examples of co-components in the mixture are as follows:

Neutral or acidic fungicides such as: carbendazim, thiabendazole, leaf withering, nongliling, skelin, sclerotia, chlorpyrimid, triazolone, azoxystrobin, metronidazole, paco Derivatives, Diltiazone, Enazodone, Triazolol, Proton, Zhiweiling, Dicarbendazim, Fenazol, Tefulin, Thiaconazole, Methionil, Chlorphene, Dimethrin Pine, seed dressing spirit, rice blast net, ethicillin, rice foot green, zinc substitute, zinc substitute Mycin, Actinomycin, Isoblasticin, Kasugamycin, Polyoxin, Pestocin, Griseofulvin, Jinggangmycin, (Agricultural) Streptomycin, Ningnanmycin, Chloramphenicol , Ribavirin, big green leaves, isatis root, houttuynia cordata, evergreen, andrographis paniculata, etc .;

Plant nutrients such as trace element fertilizers such as trace element fertilizers containing boron, molybdenum, zinc, manganese, iron, copper, cobalt and other elements; and rare earth element fertilizers such as rare earth element fertilizers containing rhenium, lanthanum, praseodymium, praseodymium, neodymium and other elements .

But generally not mixed with alkaline substances.

Application Examples

Example 1: Grape application test

15-30 days before the grape fruit is harvested (the initial stage of color conversion), the grape fruit is spray-treated with the plant growth regulating composition of the present invention, and the grape fruit is measured for various indexes listed in Table 1 below. Table 1 Application effect test on grapes

The results show that after applying the plant growth regulating composition of the present invention, the degree of coloring is high, the sugar content is increased, the sweetness of the fruit is increased, and the vitamin content is increased, that is, the fruit quality is significantly better than that of erythropoietin and S-ABA. (500. Oppm).

Example 2: Apple application test

20 to 30 days before the apple fruit is harvested (the initial stage of color change), the plant growth regulating composition of the present invention is used to spray the apple fruit one or more times, and the apple fruit is measured for each of the indicators listed in Table 2 below. Table 2 Application effect test on Apple

The results show that after applying the plant growth regulating composition of the present invention, the degree of coloring is high, the sugar content is increased, the sweetness of the fruit is increased, and the vitamin content is increased. 500. Oppm).

Example 3: Application test of persimmon

After the persimmon is harvested for 10-30 days (the initial stage of color conversion), the plant growth regulating composition of the present invention is used to spray treatment on the persimmon, and the indexes listed in Table 3 below are measured.

Table 3 Application effect test on sweet persimmon

The results show that after applying the plant growth regulating composition of the present invention, the degree of coloring is high, the sugar content is increased, the sweetness of the fruit is increased, and the vitamin content is increased. 500.'0ppm).

Claims

Rights request

1. A plant growth regulating composition which, in addition to a conventional inert processing aid, also contains the following combinations as active ingredients: A) natural abscisic acid and B) anti-fallout.

2. The plant growth regulating composition according to claim 1, further comprising component C) at least one plant growth regulating substance selected from the group consisting of glyphosate, jasmonic acid, methyl jasmonate, and ethephon.

The plant growth regulating composition according to claim 1, wherein the weight ratio of the components A) .. B) is 1: 0.001-100.

4. The plant growth regulating composition according to claim 3, wherein the weight ratio of components A): B) is 1: 0.01-10.

The plant growth regulating composition according to claim 2, wherein the weight ratio of components A): B): C) is 1: 0.001-100: 0.001-100.

The plant growth regulating composition according to claim 5, wherein the weight ratio of components A): B): C) is 1: 0.01-10: 0.01-10.

7. Use of a plant growth regulating composition according to any one of claims 1-6 to treat fruit trees.

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