DE3643102A1 - Plant growth regulator - Google Patents

Abstract

The invention relates to a plant growth regulator which contains, as active substance, an ammonium phosphonate of the general formula (I) <IMAGE> in which R<1> represents a C1-4-alkyl group; R<2> represents a (C1-4-alkoxy)-(C1-4-alkyl) or a C6-20-alkyl group; and R<3> represents hydrogen or a C1-15-alkyl group, in an amount of 0.2 to 99.5 % by weight and solid or liquid carrier or filler and, if appropriate, other auxiliaries, preferably a surfactant and/or a tackifier, to form the remainder of up to 100 % by weight.

Description

The invention relates to a plant growth-regulating agent which comprises an ammonium phosphonate of the general formula (I) as active ingredient, wherein
R ^{1 represents} a C _1-4 alkyl group;
R ^{2 represents} a (C _1-4 alkoxy) - (C _1-4 alkyl) - or a C _6-20 alkyl group; and
R ^{3 is} hydrogen or C _1-15 alkyl group, in an amount of 0.2 to 99.5% by mass and solid or liquid carrier or filler material, and optionally other auxiliaries, preferably a surface-active substance and / or an adhesive in one contains up to 100 mass% supplementary amount.

The manufacturing process of the active ingredients of the general Formula (I) and its use as an active ingredient of Fungicidal agents were found in the Hungarian patent No. 1 84 319. In this patent the plant growth regulating effect of the above substances not mentioned.

It has been found that the active ingredients of the general Formula (I) root formation in a suitable can, the growth, the development of the vegetative foliage surface, or flower binding, harvest binding and harvest maturity of arable plants, e.g. For example: wheat, corn, sugar beet and Sunflower; as well as garden plants, e.g. paprika, Tomato, radish and potato; of fruit trees, e.g. B. apple; and of berry plants, e.g. B. regulate currant and grape can.

The agent according to the invention can be used in a concentration from 1 to 2000 ppm for regulating plant growth, or to accelerate harvest maturity. The can to be used depends on the plant being treated, from the purpose of treatment, from the phenological Stage of the plant and the formulation of the agent.

Accordingly, the invention also relates to a treatment method for regulating plant growth, and for accelerating flower binding, harvest binding and harvest maturity, characterized in that the seeds, plant parts of vegetative reproduction and flowers in an amount of 1 to 2000 ppm of active ingredient, or the soil of the plants before Sowing in an amount of 0.001 to 5.0 g of active ingredient / m ² or after planting or lowering by watering in an amount of 1 to 2000 ppm of active ingredient can be treated with an agent which, as the active ingredient, is a compound of the general formula (I), in which the meaning of R ¹ , R ² and R ^{3 is} the same as above, in an amount of 0.2 to 99.5% by mass and solid or liquid carrier or filler material and optionally other auxiliaries, preferably a surface-active substance and / or contains an adhesive in an amount up to 100% by mass.

Before the practical application, the inventive Active ingredient using solid or liquid Carrier materials and possibly other auxiliary substances, preferably surface-active substances and adhesives to be transferred into an agent.

Organic or mineral, natural or synthetic substances in question, which is the adsorption or absorption of the active ingredient promote (e.g. water, methanol, glycerin, waxes, resins, Talk etc.).

Ionic can be used as surface-active substances and / or nonionic emulsifying, dispersing or wetting agents, preferably alkylaryl polyglycol ether, fatty acid polyglycol ester, as an adhesive z. B. polyvinyl pyrrolidone, Polyethylene glycol and carboxymethyl cellulose are used will.

The agents according to the invention can be water-soluble Concentrates (WSC), wettable powders (WP), Dusts, emulsifiable concentrates (EC) and granules (G) can be formulated.

The further details of the invention are evident from the following examples, which, however, do not limit the invention. In the examples, the active ingredients are designated by the following abbreviations.
3-Butoxypropyl-ammonium-methylphosphonate: BF-53 2-methoxyethyl-ammonium-ethylphosphonate: BF-76 tetradecyl-ammonium-ethylphosphonate: BF-96 hexadecyl-ammonium-ethylphosphonate: BF-97 decyl-ammonium-ethylphosphonate: BF-100 bis (2-ethylhexyl) ammonium ethyl phosphonate: BF-105 dodecyl ammonium ethyl phosphonate: BF-120 2-methoxyethyl ammonium isopropyl phosphonate: BF-195 2-methoxyethyl ammonium butyl phosphonate: BF-196 2- Methoxyethyl ammonium methyl phosphonate: BF-197

example 1

A water-soluble, liquid agent is made from the manufactured the following components: Dimensions% Decyl ammonium ethyl phosphonate 95 Nonylphenol polyglycol ether (e.g. Arkopal NO80) 5

Example 2

An emulsion forming liquid spray is made from the following components: mass% dodecyl ammonium ethyl phosphonate 40 Atlox 4857B (a mixture of an anionic and a non-ionic
surfactant) 10 chlorobenzene50

Example 3

An emulsion-forming, liquid spray is made from the following components: Dimensions% Tetradecyl ammonium ethyl phosphonate 20 Arkopal N 130 (nonylphenol polyglycol ether) 5 Chlorobenzene75  

Example 4

An emulsion-forming, liquid spray is made from the following components: Dimensions% bis (2-ethylhexyl) ammonium ethylphosphonate30 Genapol PF 10 (a polymerization product from Propylene oxide and ethylene oxide) 3 Genapol PF 40 (a polymerization product from Propylene oxide and ethylene oxide) 3 Ethylene glycol 15 Cyclohexanone 50

Example 5

An agent used in solution is obtained from the manufactured the following components: Dimensions% 3-butyloxypropilammonium methylphosphonate 1 Glycerin99

Example 6

An agent that can be used as a dusting agent made from the following components: Dimensions% 2-methoxyethyl ammonium ethyl phosphonate 0.55 Talk99.5

Example 7

Wheat seeds (MG-4) were in for 10 minutes Soaked solution, which the test substances in different Contained concentrations. After drying the surface the seeds were sown in growing pots.

In the four-leaf phase of the control plants were the germination percentage, the plant length, the Green mass and the root mass rated. Gibberellic acid (GA) or 3-indolylacetic acid (IA) were used as reference substances used. The results are in Table I. specified.  

Table I

Continuation of table I

Continuation of table I

Example 8

After growing (post-emergent), maize sown in seed pots (5 plants / pot) was sprayed with solutions which contained the test substances or gibberellic acid or 3-indolylacetic acid in a concentration of 250 or 500 ppm. In the four-leaf phase of the untreated control plants, the green mass and the root mass of the plants were measured (Table II). Chlorophyll was determined in the tip of the second leaf of each plant (Table III).

Table II

Table III

It is evident from the results that each tested active ingredient the development of the plants essential compared to the untreated control accelerated.

However, the quotient plant length / green mass shows out that the BF substances have a cheaper one Effect than the reference substances exercise. It goes out it shows that the habit of the corn by BF-120 or BF-96 has not been adversely affected while being disproportionate lean plants with an unfavorable habit developed by the action of gibberellic acid.

The values of the chlorophyll determinations indicate out that BF-120 has the most beneficial effect on the in 1 g or the amount of chlorophyll formed in the whole green plant exercises.

Example 9

Tomato plants exposed in small plots were at the beginning of flowering with solutions that were BF-120 contained in a concentration of 250 or 500 ppm, sprayed once to drain.

At 1, 4 and 13 days after treatment were Pattern from the same leaf disc of the same leaf height and the chlorophyll content was determined (Table IV).  

Table IV

Example 10

Height and mass values with BF-120 as active ingredient in maize plants
Plant: maize sowing: 25/04/1985 treatment: 17/05/1985 can: 2 liters / hectare of active ingredient BF-120 phenological stage: four-leaf phase measurement: 04/07/1985

The information is summarized in Table V.

Table V

Example 11

Tomato seedlings (20 strains) were grown after the Suspend, but before flowering begins Solutions sprayed the BF substances in different Concentrations contained (in 4 repetitions). The Yield of first reading was rated. The results are given in Table VI.  

Table VI

The results accelerated the tire Effect of the tested substances clearly proven.

Claims (2)

1. Plant growth regulating agent, characterized in that it contains one or more ammonium phosphonates of the general formula (I) as active ingredient wherein
R ^{1 represents} a C _1-4 alkyl group;
R ^{2 is} a (C _1-4 alkoxy) - (C _1-4 alkyl) or
is a C _6-20 alkyl group; and
R ^{3 is} hydrogen or C _1-15 alkyl group, in an amount of 0.2 to 99.5 mass% and solid or liquid carrier or filler material and optionally other auxiliaries, preferably a surface-active substance and / or an adhesive in one to Contains 100 mass% supplementary amount. 2. A process for regulating the growth of plants, preferably for increasing the binding of flowers and crops, harvest ripening, root formation and the nutrient-storing plant parts, characterized in that the seeds, the plant parts of the vegetative pre-planting and flowers in an amount of 1 to 2000 ppm of active ingredient, or the soil of the plants is treated with an agent according to claim 1 in an amount of 0.001 to 5.0 g of active ingredient / m ² or after planting or lowering by watering in an amount of 1 to 2000 ppm of active ingredient.