CN1379980A - Plant growth regulation composition capable of improving fruit quality - Google Patents

Abstract

The present invention discloses a plant growth regulating composition, which contains as active ingredients the following combination in addition to conventional inert processing aids: A) natural abscisic acid and B) 2,4-D propionic acid; at the same time the plant growth regulating The composition may also include component C) at least one plant growth regulating substance selected from the group consisting of glyphosate, jasmonic acid, methyl jasmonate and ethephon.

Description

A plant growth regulating composition with improved fruit quality

technical field

The 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-abscisin. Molecular formula: C ₁₅ H ₂₀ O ₄ , chemical name: 5-(1'-hydroxy-2',6',6'-trimethyl-4'-oxo-2'-cyclohexene-1'- base)-3-methyl-2-cis-4-trans-pentadienoic acid, the chemical structure is as follows Chemical structure of S-ABA

In 1963, abscisic acid was first extracted from young cotton fruit by Addicott et al. For more than 30 years, scientists from various countries have conducted extensive and in-depth research on the physiological activities of plants. Studies have shown that abscisic acid is the "stress-resistance inducing factor" and "balanced growth factor" of plants, and it can initiate the expression of plant stress-resistant genes. , activate the plant's endogenous immune system, induce plants to develop resistance to biotic and abiotic stress (drought, low temperature, saline-alkali, pests and diseases), improve the ability of plants to resist drought, cold, disease and saline-alkali, and enhance plant autoimmunity It plays an important role in disease resistance and promoting balanced growth of crops, and can be widely used in agriculture, forestry, animal husbandry, landscaping, ecological vegetation restoration and other fields.

Fangluoling is 2,4-D propionic acid (Dichlorprop), chemical name: 2-(2,4-dichlorophenoxy) propionic acid, for example disclosed in "New English-Chinese Pesticide Dictionary" edited by Hu Xiaoxing, published in foreign language Society, 1999. Various currently disclosed mixtures containing 2,4-D, such as 25mg/kg 2,4-D+25mg/kg GA 25 disclosed in "Journal of Zhejiang Agricultural University" 22(2): 191-195, 1996, Effect of 100mg/kg PCPA+5, 25mg/kg GA and 25mg/kg CPPU+25mg/kg 2,4-D+25mg/kg GA on improving fruit set rate of cucumber and gourd; Liu Youqi et al. 》2000,15(3): 60-62 discloses that various media for inducing embryogenic callus include MS+3.0mg/L2, 4-D+0.1, 0.5, 1.0, 3.0mg/L BA etc. The inducing effect of pearl flower callus and Zhang Ruiting's "mixture and mixture of pesticides" edited by Chemical Industry Press disclosed in 1987 that 2,4-D (10ppm)+gibberellin (10ppm) can prolong the growth of navel orange on the tree. storage time.

According to the test, the inventor has confirmed that spraying the whole plant with 500ppm S-ABA alone can promote the coloring of grapes and increase the sweetness of the fruit, but it has an inhibitory effect on new leaves; Coloring effect, but mainly to prevent late shattering, and when S-ABA is mixed with Fangluoling, it will produce obvious synergistic activity, which can promote grape coloring and increase sugar content, and at the same time greatly reduce post-harvest shattering. Compared with single use of 500ppm S-ABA, the cost is greatly saved, and the side effects in the later stage are improved, so the present invention is completed.

Contents 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 A) natural abscisic acid and B) anti-falling spirit are included in the composition.

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

Surprisingly, the composition of S-ABA and 2,4-D propionic acid of the present invention and on this basis adding other plant growth regulating substances has an additive effect on the growth regulating activity of crops beyond expectations, mainly On the one hand, the range of activity 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 combination of plant growth regulators also achieves good plant growth at lower than effective concentrations of the individual compounds Adjustment level. In the present invention, the mixing of S-ABA and Fangluoling has complementary effects, especially on the quality of fruits, which promote each other, thereby increasing yield and improving quality.

Surprisingly, it is also found that S-ABA and Fangluoling, as well as adding other plant growth regulating substances on this basis, can obtain unexpected synergistic effects.

Other various plant growth regulators in the present invention: glyphosate, jasmonic acid, methyl jasmonate (PDJ), ethephon, etc. are all known, and are described in, for example, "Plant Growth Regulators" edited by Xie Jiugao, Hong Kong China Science and Technology Press, 1992.5; "New Pesticide Handbook", Institute of Pesticide Control, Ministry of Agriculture, Agricultural Press, 1989; "New Pesticide Handbook" (sequel), Ministry of Agriculture Pesticide Control Institute, Agricultural Press, 1998, etc.

Generally speaking, the concentration of S-ABA in the composition of the present invention is 1.0-1000.0ppm, preferably 10.0-500.0ppm, most preferably 50.0-300.0ppm; the concentration of S-ABA is 1.0-100.0ppm, preferably 1.0-80.0ppm, Most preferably 5.0-40.0ppm; glyphosate use concentration is 1.0-200.0ppm, preferably 10.0-150.0ppm, most preferably 20.0-100.0ppm; methyl jasmonate or jasmonic acid or ethephon use concentration is 0.5-500.0ppm, preferably 0.5-100.0 ppm, most preferably 1.0-50.0 ppm.

Usually, in the composition of the present invention, S-ABA: the ratio (weight ratio) of 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: group The ratio (weight ratio) of component C is 1:0.001-100:0.001-100, preferably 1:0.01-10:0.01-10.

Furthermore, the plant growth regulator composition of the present invention may further contain a synergist. The synergist is at least one of the following components: Cytokinin, glucose calcium, amino acid, sucrose chelated calcium, vitamins, organic fertilizers, nutritional elements, mineral elements, citric acid, _CaCl2 and the like.

The plant growth regulating composition containing natural abscisic acid of the present invention can be applied to various fruit trees including apple, hawthorn, pear, grape, banana, pineapple, jujube, persimmon, citrus, grapefruit, lemon, strawberry, peach, apricot, plum, cherry , lychee, papaya, mango, etc. It is preferably applied to grapes, lychees, apples, loquats, pears, citrus, strawberries and other fruits.

The application rate can vary within a rather wide range and depends on the type of application (foliar spray, smear, root irrigation, seed dressing, injection, etc.), the species of the cultivated plant, the growth period of the plant, climatic conditions and other factors. In general, the compositions according to the invention are applied at a rate of from 0.01 to 2.50 kg active ingredient/ha. Generally speaking, the application dose of the plant growth regulating composition is not critical, but the key point is that the concentration of abscisic acid should be kept at 1-1000ppm.

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

The formulations are prepared in known manner, for example by homogeneously mixing and/or grinding the plant growth regulator with the adjuvants, typically solvents or solid carriers. Surfactants can additionally be used to prepare the formulations.

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

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

Examples of suitable nonionic, cationic, anionic and/or amphoteric surfactants are listed in the third chapter of "Pesticide Formulation Processing Technology" edited by Liu Bulin, second edition (Chemical Industry Press, 1998).

Plant growth compositions generally 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 of solid or liquid processing aids and from 0 to 25.0% by weight of %, preferably 0.1% to 25.0% by weight of surfactant.

A particularly preferred formulation consists of the following:

(% = percent by weight)

Crème:

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 carrier 99.9% to 90%, preferably 99.9% to 99%

Suspending agent:

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

Water 94% to 24%, 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. Emulsion A) B) C) D)

Active ingredient 5% 10% 25% 50%

Calcium dodecylbenzenesulfonate 6% 8% 6% 8%

Polyethoxylated castor oil

(36 moles EO) 4% - 4% 4%

Octylphenol polyethoxy

Compound (7 mole EO) - 4% - 2%

Cyclohexanone - - - 10% 20%

Aromatic mixture C ₉ -C ₁₂ 85% 78% 55% 15%

Any desired emulsions can be prepared by diluting said emulsifiable concentrates with water.

2. Wettable powder A) B) C) D)

Active ingredient 5% 25% 50% 80%

Sodium Lignosulfonate 4% - 3% -

Sodium Lauryl Sulfate 2% 3% - 4%

Sodium Diisobutyl Naphthalene Sulfonate - 6% 5% 6%

Octylphenol polyethoxy

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

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

Kaolin 88% 62% 35% -

The active ingredient is intimately 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 give a suspension of any desired concentration.

3. Coating granules A) B) C)

Active ingredient 0.1% 5% 15%

Highly dispersed silicic acid 0.9% 2% 2%

Inorganic carrier (Ф0.1-1mm) 99.0% 93% 83%

such as calcium carbonate or silica

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

4. Coating granules A) B) C)

Active ingredient 0.1% 5% 15%

Polyethylene glycol (MW200) 1.0% 2% 3%

Highly dispersed silicic acid 0.9% 1% 2%

Inorganic carrier (Ф0.1-1mm) 98.0% 92% 80%

such as calcium carbonate or silica

Dust-free powders are obtained by applying the finely ground active ingredient homogeneously in a mixer to a carrier moistened with polyethylene glycol.

5. Extruded granules A) B) C) D)

Active ingredient 1% 3% 5% 15%

Sodium lignosulfonate 1.5% 2% 3% 4%

Carboxymethylcellulose 1.4% 2% 2% 2%

Kaolin 97.0% 93% 90% 79%

The active ingredients are mixed and ground together with auxiliaries, the mixture is moistened with water, the above mixture is extruded and then dried under airflow.

6. Powder A) B) C)

Active ingredient 0.1% 1% 5%

Talc or Chalk 39.9% 49% 35%

Kaolin 60.0% 50% 60%

Ready-to-use powders are obtained by mixing the active ingredient with a carrier and grinding in a suitable mill.

7. Suspending agent A) B) C) D)

Active ingredient 3% 10% 25% 50%

Ethylene Glycol 5% 5% 5% 5%

Nonylphenol polyethoxylate

Compound (15 mole EO) - 1% 2% -

Sodium lignosulfonate 3% 3% 4% 5%

Carboxymethylcellulose 1% 1% 1% 1%

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

Silicone oil emulsion 0.8% 0.8% 0.8% 0.8%

Water 87% 79% 62% 38%

The finely ground active substance is mixed thoroughly with the auxiliaries. Suspension concentrates are obtained in this way and can be diluted with water to prepare suspensions of any desired concentration.

It is often convenient to process the natural abscisic acid and components B) and C) separately and to apply them in a "tank mix" by mixing them in the desired mixing ratio before use.

The components can be applied simultaneously or separately and sequentially; when applied separately, the order of application usually does not affect the effect.

Plants treated with the plant growth regulator composition of the present invention containing natural abscisic acid can be applied by spraying the whole plant before fruit coloration.

In general, it is critical that the natural abscisic acid concentration at the time of application be maintained at 1-1000 ppm, preferably 10-500 ppm, most preferably 50-300 ppm.

The active compounds used according to the invention may also be mixed with other active compounds, for example with known fungicides, insecticides and plant nutrients, thereby broadening the spectrum of action or preventing the development of resistance and treating various deficiencies. vegetarianism. In most cases, synergistic activity can result, ie the activity of the mixture exceeds that of the individual components.

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

Neutral or acidic fungicides such as: carbendazim, thiabendazole, Yekujing, Nongliling, Sukling, Sclerotin, Hebigen, triadimefon, pyrizazone, mebendazole, and baike De, Dilito, Diniconazole, Triaconazole, Prohein, Zhiweiling, Difenazol, Fenconazole, Tefulin, Thiacumazole, Thiophanate-Methyl, Chlorothalonil, Digram Pine, Seed Dressing Ling, Daowenjing, Allicin, Daojiaoqing, Zinc, Maneb, Mancozeb, Thiram, Bordeaux Mixture, Copper Sulfate, Fubiqing, Antimycotic 120, Gongzhuling Mycin, Cycloheximide, Isomycin, Kasugamycin, Polyoxin, Blasticidin, Griseofulvin, Jinggangmycin, (Agricultural) Streptomycin, Ningnanmycin, Chloramphenicol , Ribavirin, Folium Folium, Radix Isatidis, Houttuynia cordata, Sijiqing, 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 scandium, lanthanum, cerium, praseodymium, neodymium and other elements .

But generally do not mix with alkaline substances.

Application example

Embodiment 1: grape application test

15-30 days (initial stage of veraison) before the harvest of the grape fruit, the plant growth regulating composition of the present invention is used to spray the grape fruit, and measure the indicators listed in the following table 1 of the grape fruit.

Table 1 application effect test on grapes

The results show that after applying the plant growth regulating composition of the present invention, the coloring degree is high, the sugar content is increased, the sweetness of the fruit is increased, and the vitamin content is increased at the same time, that is, the fruit quality is significantly better than that of erythromycin and S-ABA single agent (500.0ppm).

Embodiment 2: Apple application test

20-30 days before the apple fruit was harvested (the initial stage of color change), the plant growth regulating composition of the present invention was used to spray the apple fruit once or more times, and measure the indicators listed in the following table 2 of the apple fruit.

Table 2 Application Effect Test on Apple

The result shows that after using the plant growth regulating composition of the present invention, the coloring degree is high, the sugar content is improved, the fruit sweetness is increased, and the vitamin content is improved simultaneously, and the fruit quality is significantly better than that of erythromycin and S-ABA single agent ( 500.0ppm).

Embodiment 3: persimmon tree application test

10-30 days before the harvest of persimmons (the initial stage of color change), the plant growth regulating composition of the present invention is used to spray the persimmons, and the indicators listed in the following table 3 of the persimmons are measured.

Table 3 application effect test on sweet persimmon

The result shows that after using the plant growth regulating composition of the present invention, the coloring degree is high, the sugar content is improved, the fruit sweetness is increased, and the vitamin content is improved simultaneously, and the fruit quality is significantly better than that of erythromycin and S-ABA single agent ( 500.0ppm).

Claims (7)

CLAIMS 1. A plant growth regulating composition comprising, in addition to conventional inert processing aids, the following combination as active ingredients: A) natural abscisic acid and B) anti-abscisic acid. 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. 3. The plant growth regulating composition according to claim 1, wherein the weight ratio of 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. 5. 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. 6. 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 the plant growth regulating composition according to any one of claims 1-6 for the treatment of fruit trees.