CN1150820C - Plant growth regulating composition with dwarfing, maturation promoting and stress resistance effects - Google Patents

Abstract

The present invention relates to a plant growth regulator with dwarfing, ripening and stress-resistant effects, which contains, in addition to conventional inert processing aids, the following combination as active ingredients: A) natural abscisic acid, B) auxiliary Probiotic and C) promoting plant growth regulator, wherein the weight ratio of components A): B): C) is 1: 0.01-100: 0.001-10.

Description

Plant growth regulating composition with dwarfing, maturation promoting and stress resistance effects

field of invention

The invention relates to a plant growth regulating composition containing natural abscisic acid with functions of dwarfing, maturation promoting and stress resistance, and the international classification number belongs to A01N37/06.

Background technique

Natural abscisic acid, the common name of pesticides is S-abscisin (S-ABA), that is, (+)-cis, trans-natural abscisic acid, chemical name: 5-(1'-hydroxy-2',6',6 '-Trimethyl-4'-oxo-2'-cyclohexen-1'-yl)-3-methyl-2-cis-4-trans-pentadienoic acid, the structural formula is as follows:

Chemical structure of S-ABA

Natural abscisic acid (S-ABA), together with auxin, ethylene, gibberellin and cytokinin, is listed as the five major plant hormones. In 1963, natural abscisic acid was first extracted from cotton young fruit by Addicot et al. For more than 30 years, scientists from various countries have conducted extensive and in-depth research on the physiological activities of plants. The research shows that natural abscisic acid is the "stress-resistance inducing factor" of plants, and plays an important role in physiological activities in various stages of plant growth. , especially in inducing plants to improve drought resistance, cold resistance, saline-alkali resistance and enhancing plant autoimmune disease resistance, etc., has an important role.

S-ABA (1.0-100ppm) has anti-cold and anti-drought effects on crops, but the dwarfing effect is not obvious. Pix (10.0-300ppm) can dwarf plants and promote fruit setting, but it will not cause early flowering and early fruiting. 6-benzylaminopurine (6-BA) (1.0-50ppm) and naphthaleneacetic acid (NAA) (1.0-50.0ppm) must treat the flower organs of plants such as cotton to promote fruit setting, and the foliar spray is not obvious.

According to the plant physiological activity of natural abscisic acid, as well as its interaction with other plant growth regulators, etc., the inventors surprisingly found that when using inhibitory regulators such as S-ABA or Pix and promoting regulators For example, when ethephon, naphthalene acetic acid or 6-BA are combined, it can not only dwarf crops such as cotton and cucumber, promote fruit setting, but also achieve early flowering, early fruit and early harvest, and the fruit quality is significantly improved. Run into cold, arid weather in result period, then can bring into play the effect of anti-drought, anti-cold, so finished the present invention.

Contents of the invention

The object of the present invention is to provide a plant growth regulating composition with dwarfing, maturation promoting and stress-resistance effects, which contains A) natural abscisic acid, B) mesotropin and C) at least one selected from the following Promoting plant growth regulators: ethephon, 6-benzylaminopurine, naphthaleneacetic acid, brassinolide, gibberellin, acetylsalicylic acid, jasmonic acid or methyl jasmonate.

It is completely surprising that the combination of natural abscisic acid according to the present invention and a plurality of plant growth regulators selected from the plant growth regulators has an additive effect on the growth regulation activity of crops beyond expectations, and especially in two The spectrum of activity of each ingredient is improved in two ways: on the one hand, the concentration of natural abscisic acid and other plant growth regulators is reduced while maintaining good activity, and on the other hand, the new plant growth regulator combination is A good level of plant growth regulation is obtained at low concentrations where there is no longer an agricultural effect.

The promoting type plant growth regulator ethephon, 6-benzylaminopurine, naphthalene acetic acid, brassinolide, gibberellin, acetylsalicylic acid, jasmonic acid or methyl jasmonate described in the present invention are all known and described in, for example, "Handbook of Foreign Pesticide Varieties" (new edition bound edition), General Station of Pesticide Information, Ministry of Chemical Industry; "New Pesticide Handbook", Institute of Pesticide Control, Ministry of Agriculture, Agricultural Press, 1989; "New Pesticide Handbook "(sequel), Institute of Pesticide Control, Ministry of Agriculture, Agricultural Press, 1998.

The plant growth regulating composition of the present invention can be used for cotton, cucumber, fruit such as grass mold, grape, litchi and the like.

Single use of S-ABA (1.0-100ppm) has cold and drought resistance effects on crops, but the dwarfing effect is not obvious. Zhuzhuanglin (Mepiperidine, Pix) (10.0-300ppm) can dwarf plants and promote fruit setting, but it will not cause early flowering and early fruiting. And promoting regulators such as 6-benzylaminopurine (6-BA) (1.0-50ppm) and naphthaleneacetic acid (NAA) (1.0-50.0ppm) must treat the flower organs of plants such as cotton to promote fruit setting, and the foliar spray is not obvious . When adopting suppressing type regulator of the present invention such as S-ABA or Pix and promoting type regulator such as ethephon, naphthalene acetic acid or 6-BA combination, then promptly can dwarf crops such as cotton, cucumber, promote fruit setting, can reach again Early flowering, early fruiting, early harvesting, and fruit quality have been significantly improved. If cold and dry weather is encountered during the fruiting period, it will play the role of drought resistance and cold resistance. The plant growth regulating composition of the present invention breaks through the synergistic effect of the traditional composition only in application, and the two kinds of regulators of the inhibitory type and the promoting type complement each other, so that some crop regulators can be used in a youthful way, and can be used under adversity conditions. Increasing the yield can improve the quality of the fruit to varying degrees.

Generally speaking, when the composition of the present invention is used, the concentration of ABA is 1.0-1000ppm, preferably 1.0-500ppm, more preferably 1.0-50.0ppm; More preferably, it is 50.0-250ppm; the concentration of the promoting regulator is 0.01-500ppm, preferably 0.01-100ppm, more preferably 1.0-50ppm.

Generally speaking, in the plant growth regulator of the present invention, natural abscisic acid: coquatin: promoting growth regulator mixing ratio (weight ratio) is between 1: 0.1-100: 0.001-10, preferably between 1: 0.1 -100: between 0.01-10.

The application dosage can vary within a fairly wide range and depends on the type of application (foliar spray, smear, root irrigation, injection, etc.); the type of cultivated plant, the growth period of the plant, climatic conditions, etc.; and the type and time of application other factors of control. In general, the compositions according to the invention can be applied at a dosage of 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 natural abscisic acid should be kept between 1.0-1000ppm.

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 .

The formulations are prepared in known manner, for example, by homogeneously admixing and/or grinding the plant growth regulator with said processing aids, typically solvents or solid carriers. The formulations can additionally be prepared using surface-active compounds (surfactants).

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).

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

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

The plant growth composition generally contains 0.1 to 99% by weight, preferably 0.1 to 95% by weight of natural abscisic acid and component B), 1 to 99.9% by weight solid or liquid processing aid, and 0 to 25%, preferably 0.1 to 25% by weight of surfactant.

A particularly preferred formulation consists of the following:

(% = percentage 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 polyethoxylate - 4% - 2%

(7 moles EO)

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 polyethoxylate - 1% 2% -

(7-8 moles EO)

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

Kaolin 88% 62% 35% -

The active ingredient is thoroughly mixed with adjuvants and this mixture is ground in a suitable mill to give a wettable powder which can be diluted with water to give a suspension of any concentration.

3. Coating granules A) B) C)

Active ingredient 0.1% 5% 15%

Highly dispersed silicic acid 0.9% 2% 2%

Inorganic carrier (φ0.1-1mm) 99.0% 93% 83%

such as calcium carbonate or silica

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

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 (φ0.1-1mm) 98.0% 92% 80%

such as calcium carbonate or silica

The finely ground components A) and B) are spread evenly in a mixer on a carrier moistened with polyethylene glycol. Use this method to obtain dust-free granules.

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 with auxiliaries, and the mixture is moistened with water. The mixture is extruded and then dried under air flow.

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 - 1% 2% -

(15 moles EO)

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, from which suspensions of any desired concentration can be prepared by dilution with water.

It is often convenient to process the natural abscisic acid and the individual plant growth regulating components separately until combined by the applicator in the desired mixing ratio in the form of an aqueous "tank mix" just prior to application.

Treatment of plants with the plant growth regulating composition of the present invention can be accomplished by spraying after fertilization at the full flowering stage.

Generally speaking, the dosage of the composition is not critical, but the key is that the concentration of natural abscisic acid should be kept between 1.0-1000ppm, preferably between 1.0-500.0ppm.

The active compounds which can be used according to the invention can be used as such or also in their formulations in admixture with other active compounds, for example with known fungicides, insecticides and plant nutrients, thereby broadening the spectrum of action or controlling resistant Sex production and treatment of phytonutrient deficiencies. In many cases a synergistic effect can be obtained, ie the activity of the mixture exceeds that of the individual components.

Examples of co-components of mixtures are the following substances:

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, Bromothalil, Anti-mold Su 120, Gongzhulingmycin, Cycloheximide, Isodomycin, Kasugamycin, Polyoxin, Blasticidin, Griseofulvin, Jinggangmycin, (Agricultural) Streptomycin, Wuningmycin Chloramphenicol, Ribavirin, Folium Isatidis, Radix Isatidis, Houttuynia cordata, Sijiqing, Andrographis paniculata, etc.;

Plant nutrient 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.

Example

The present invention will be further described in detail below using non-limiting examples.

Example 1 Experiment on the effect of dwarfing and maturation-promoting stress resistance on cotton crops

At the initial flowering and full flowering stages of cotton, the plant growth regulating composition of the present invention is used to spray the cotton plants one or more times, and the indicators in the following table 1 of the cotton plants are measured and the final yield is recorded.

Table 1 Dwarf maturation promoting stress resistance effect test on cotton crops

The results show that the composition of the present invention can significantly improve the growth condition of plants, and finally significantly increase crop yield.

Example 2 Experiment on the Stress Resistance Effect of Dwarfing and Accelerating Maturity on Wheat

At the early stage of wheat flower formation, the wheat plants were sprayed once with the plant growth regulating composition of the present invention, and the indicators in the following table 2 of wheat were measured and the final yield was recorded.

Table 2 Experiments on the effects of dwarfing, ripening and stress resistance on wheat

The results show that the composition of the present invention can significantly improve the growth condition of plants, and finally significantly increase crop yield.

Example 3 Experiment on stress resistance effect of dwarfing and promoting maturation on rice

15-20 days before the emergence of rice ears, the rice plants were sprayed once with the plant growth regulating composition of the present invention, and the indicators in the following table 3 of the rice plants were measured and the final yield was recorded.

Table 3 Test of dwarfing and maturation promoting stress resistance effect on rice

The results show that the composition of the present invention can significantly improve the growth condition of plants, and finally significantly increase crop yield.

Example 4 Cotton dwarf stress resistance test

At the initial flowering stage of cotton, spray treatment with the plant growth regulating composition of the present invention once, measure the indicators in the following table 4 after 20-60 days, and finally record the yield.

Table 4 Application effect of crop dwarfing and maturation-promoting stress-resisting agent on cotton

(Note: Pix is quasiquatin, TS303 is brassinolide, NAA is naphthaleneacetic acid, 6-BA is 6-benzylaminopurine)

Claims (3)

1. A plant growth regulating composition, characterized in that it contains, in addition to customary inert processing aids, the following combination as active ingredients: A) natural abscisic acid, B) aphrodisiac and C) plant growth-promoting Regulator, the weight ratio of component A): B): C) is 1: 0.01-100: 0.001-10; Wherein: the promoting plant growth regulator is one of ethephon, 6-benzylaminopurine, naphthaleneacetic acid or brassinolide. 2. The plant growth regulating composition according to claim 1, wherein the weight ratio of components A):B):C) is, preferably, 1:0.1-100:0.01-10. 3. The use of the plant growth regulating composition as claimed in claim 1 or 2 in treating crops.