CS261890B2 - Agent for plants growth regulation - Google Patents

Description

(54) Plant growth control agent

2

The present invention relates to a plant growth regulating composition which contains 3-isononylioxypropylammonium methylphosphonate as the active ingredient.

281890

AND

The invention relates to a plant growth regulating composition comprising 3-isononyloxypropylammonium methylphosphonate as active ingredient in an amount of 0.2 to 95% by weight and a solid or liquid carrier material or filler, as well as optionally other auxiliaries, preferably surfactants and and / or an adhesion promoter in an amount up to 100% by weight.

The process for the preparation of 3-isononyloxypropylammonium methylphosphonate and its use as an active ingredient in a fungicidal composition has been described in Hungarian patent 184 184. However, it is not mentioned in this patent that the compound has a plant growth regulating effect.

It has now been found that 3-isononyloxypropylammonium methylphosphonate can, at a suitable dose, regulate root formation, growth, development of the vegetative surface of the leaves or the planting of flowers, harvest and harvest maturity of field plants such as wheat, corn, sugar beet and sunflower. , tomatoes, radishes and potatoes, fruit trees such as apple trees, berries such as currants and vines.

The composition of the invention may be used at a concentration of from 1 to 2000 ppm to control plant growth or to accelerate the maturity of the crop. The dosage used depends on the plants to be treated, the purpose of the treatment, the phenological stage of the plants and the form of the composition.

The invention therefore also relates to a treatment method for controlling the growth of plants and to accelerating the deployment of flowers and harvesting, characterized in that the seeds, plant cultivation kits and flowers are treated in an amount of from 1 to 2000 ppm or soil for plant cultivation. before sowing of the active ingredient in an amount of 0.001 to 5.0 g / m ² or after planting of plants or hybrids by spraying the active ingredient in an amount of 1 to 2,000 ppm in a composition containing as active ingredient 3-isononyloxypropylammonium methylphosphonate up to 95% and a solid or liquid carrier and filler, as well as optionally other excipients, preferably a surfactant and / or a tackifier in an amount up to 100% by weight.

Prior to practical use, the active ingredient can be converted into a composition using a solid or liquid carrier material and optionally other excipients, preferably surfactants and tackifiers.

Suitable carriers are organic or mineral, natural or synthetic substances which promote the adsorption or absorption of the active substance (for example, water, methanol, glycerin, waxes, resins, talc and the like).

Emulsifiers, dispersants or wetting agents of ionic and / or non-ionic nature, preferably alkylaryl polyglycol ethers, polyglycol esters of fatty acids, can be used as surfactants, for example, polyvinylpyrrolidone, polyethylene glycol and carboxymethylcellulose as adhesion promoters.

The compositions of the invention may be formulated as water-soluble concentrates, wettable powders, dusts, emulsifiable concentrates and granules.

Other details will be apparent from the following non-limiting examples. In the examples, 3-isononyloxypropylammonium methylphosphonate is referred to as "BF-51".

Example 1 A solution is prepared from the following components:

% BF-515 alkylaryl polyglycol ether (Emulsogen NO90) 0.5 methanol94.5

Example 2

The solution is prepared from the following components:

% BF-512 nonylphenol polyglycol ether (Arkopal N080) 0.51 glycerine97.85

Example 3

The solution is prepared from the following components:

% BF-5190 nonylphenol polyglycol ether (Arkopal N150) 5 dimethylsulfoxide5

Example 4

A mixture of 10 g of BF-51 and 100 ml of methanol is homogenized with 90 g of talc and then the methanol is evaporated under reduced pressure. A dust containing 10% of the active ingredient is obtained, the adhesion of which is 0.05 to 0.01 g / cm ² .

Example 5

A mixture of 10 g of BF-51, 10 g of polyethylene glycol, 0.1 g of alkylaryl polyglycol ether (Emulsogen NO90) and 100 ml of methanol is homogenized with 79.9 g of talc and then the methanol is evaporated off under reduced pressure. A wettable powder is obtained containing 10% of active ingredient, the adhesion of which is 0.07 to 0.01 g / cm ² .

Example 6

A mixture of 10 g of BF-51, 5 g of polyvinylpyrrolidone261890

n, 0.2 g of nonylphenol polyglycol ether (Arkopal NO80) and 100 g of methanol are homogenized with 84.8 g of talc and then the methanol is evaporated under reduced pressure. A wettable powder is obtained containing 10% of active ingredient, the adhesion of which is 0.01 to 0.002 g / cm ² .

Example 7

100 g of diatomaceous earth in the form of pearls is stirred vigorously with 100 g of BF-51, after standing for 2 to 3 hours, filtered and dried for 1 to 2 hours at 40 ° C.

Example 8

100 g diatomaceous earth in the form of pearls,

100 g of BF-51 and 25 g of synthetic silicate (Sipemat 50) are mixed intensively together and then continued according to the method described in Example 7.

Example 9

From potato tubers with potato sprouts removed by cork borer, they are treated for 10 minutes with a solution containing the test compound in various (concentrations) and then planted in pots for cultivation.

3-Indolylacetic acid (IAA) and Gibberellic acid (GA) are used as comparators. The mass of roots, shoots and germinated tuber parts is weighed. The results are shown in Table I.

TABLE I

Treatment Concentration Weight g root sprouts germinated tubers (Štolo) % control determination: 0 1.72 8.98 0.08 50.0 BF-51 1 ppm 2.49 16.84 0.58 100.0 BF-51 10 ppm 2.58 17.75 0.44 100.0 BF-51 .100 .ppm 1.58 15.97 0.55 80.0 BF-51 250 ppm 1.88 18.71 0.90 83.33 BF-51 500 ppm 1.33 9.10 0.44 80.00 IAA 1 ppm 1.40 12.47 0.15 50.00 IAA 10 ppm 0.91 6.19 0.28 20,00 IAA 100 ppm 0.79 6.35 0.03 16.67 GA 1 ppm 1.54 11.69 0.06 33.33 GA 10 ppm 2.34 9.41 0.41 100.00 GA 100 ppm 1.29 18.74 0.02 16.67 Example 10 concentrations. After drying the surface currency sow into the pots pno cultivation and Seeds peppers (variety "Widerhorn") after two months, the percentage of are soaked for 10 minutes in solutions (which and average value length. Results test compounds in different are listed in Table II.

TABLE II

Treatment Germination in% Average plant length 24/04 19/04 20/04 24/04 Control determination 8 30 38 8.26 BF-51, 1 ppm 18 38 60 22.40 BF-51, 10 ppm 38 56 76 26.66 BF-51, 100 ppm 26 42 60 24.77 BF-51, 250ppm 26 50 70 26.97 IAA, 1 ppm 14 28 62 14.51 IAA, 10 ppm 18 24 60 22.47 IAA, 100 ppm 8 16 48 17.88 GA, 1 ppm 10 14 52 13.69 GA, 10 ppm 10 16 46 16.48 GA, 100 ppm 12 12 42 16.38

AND

Example 11

Beet seeds (variety "Kamennaja") are soaked in solutions containing the test compounds at different concentrations for 10 minutes. After drying, the seeds are sown in pots for cultivation and the percentage of germination is evaluated after two months. The results are shown in Table III.

TABLE III

Average weight of green matter in g per piece

Treatment

Germination in%

control determination 27 Mar: 3.25 BF-51 500 ppm 73 4.68 250 ppm 60 5.27 100 ppm 60 4.44 10 ppm 53 6.87 1 P, pm 40 9.67 IAA 100 ppm 80 4.76 10 ppm 76 3.91 1 ppm 73 4.05 GA 100 ppm 66 4.50 1 ppm 73 3.37 Explanatory notes: IAA = acid 3-indolylacetic GA = acid gibbberellová

Example 12

The seed potatoes are pickled with solutions of the water-soluble concentrate described in Example 3, which contains different concentrations of BF-51 and the tubers are planted after eight days. Controls with untreated tubers are planted simultaneously or one month earlier (early planting). The yield is evaluated. The results are shown in Table IV.

TABLE IV

Yield of new potatoes Treatment Dose liter / ton kg / 20 rods AND II III IV Total BF-51 90 0.5 4.8 4,5 2.8 2.9 15 Dec BF-51 90 0.25 6.2 5.5 5.9 5.9 23.5 BF-51 90 0.1 5 6.5 5.75 5.6 22.65 BF-51 90 0,025 5.75 5.8 4.9 5.2 21.65 untreated control plants - 4.0 5.0 6.3 4.9 20.2 untreated control plants early potatoes - 3.6 5.1 6.7 4.9 20.3

Explanation: WSC = water-soluble concentrate.

On the basis of the results, it can be determined that tubers treated with BF-51 can be planted one week later without these later planted plants being left behind in their development. This is particularly important in those areas where early planting may be dangerous for unfavorable cold spring weather.

Example 13

Each 10 vine with 10 buds is contacted for 24 hours with a water-soluble concentrate containing 10, 100 and 500 ppm of BF-51 and then grown under greenhouse conditions in a plastic pot in a sandy soil containing humus.

After three months of cultivation, the length of the shoots developed on the blind rods is measured, and the weight of the roots after separation from the vine is determined as for the shoots.

The data are averaged for each treatment and the development of shoots and roots is compared to the control group. The results are shown in Table V.

TABLE V

Treatment Dose PPm Average value for each individual plant length of shoots weight of shoots weight of the root cm % G % G % BF-51 90 WSC 10 24 133.3 10.2 182.1 9.0 166.6 2. BF-51 90 WSC 100 ALIGN! 19 Dec 105.5 7.0 125.0 8.5 157.4 3. BF-51 90 WSC 500 16 88.8 4,5 80.3 6.5 120.3 4. Control determination - 18 100.0 5.6 100.0 5.4 100.0 Explanatory notes: WSC = concentrate soluble in the water.

The development of vine shoots is accelerated at concentrations of 10 and 100 ppm BF-51 90 WSC. Root development is accelerated at concentrations of 10, 100 and 500 ppm of the same water-soluble concentrate.

Example 14

An equal amount of perlite mixed with Hvagland's nutrient solution is added to 4 plastic pots with an open area of 214 cm ² . Different batches of BF-51 50 G granules described in Example 7 are spread evenly over the perlite surface and 10 grains of grain are sown in each pot.

After emergence, the germination rate for each treatment was gradually evaluated until the germination percentage was reached in the control group of 90 ° / o (Table VI). The percentage of germination, shoot length, green weight and root size at the fourth leaf stage of control plants are determined. The results are shown in Table VII.

TABLE VI

Treatment

Dose g / pot

Germination rate in%

Day 2 Day 3 Day 4

control determination _ 68.75 86.25 90 BF-51 50G 0.005 80 90 91.25 BF-51 50G 0.01 85 95 96.25 TABLE VII Treatment Dose Germination Length sprouts in% in% grain in ° / o abs. from control from control control determination - 90 100 ALIGN! 18.46 100 ALIGN! BF-51 50G 0.005 91 101 23.68 128 BF-51 50G 0.01 92 102 22.72 123

TABLE VII - Part 2

Treatment

Dose

Green weight g in% of control

Amount of root g in% of control

control determination _ 0.41 100 ALIGN! 0.71 100 ALIGN! BF-51 50G 0.005 0.70 170 0.9 127 BF-51 50G 0.01 0.88 141 0.85 119

The results show that

(a) the germination process is accelerated by treatment; and

(b) both the plant height and the green weight of the plants are clearly increased compared to the control group.

Example 15

In cultivation pots, sown maize (5 plants per pot) is sprayed after emergence (post-emergence treatment) with BF-51 or gibberellic acid or 3-indolylacetic acid as a 250 or 500 µm solution. At the fourth leaf stage of untreated control plants, the length, green weight and root amount (Table VIII) or chlorophyll tip at the second leaf tip (Table IX) are determined for each plant.

TABLE VIII

Treatment

Dose ppm

Plant length Green weight Root amount mm as% g as% g as% of control from control

Lengths% Green weight per plant untreated control

determination - 152.83 100 ALIGN! 0.94 100 ALIGN! 1.58 100 ALIGN! 1 BF-51 500 159.96 104.67 1.14 121.28 2.33 147.47 0.86 250 161.58 105.73 1.07 113.83 2.06 130.38 0.92 IAA 500 159.80 104.56 1.37 145.74 2.13 134.81 0.71 250 152.14 99.55 1.0 106.38 1.86 117.72 0.93 GA * 500 264.08 172.79 1.44 153.19 1.68 106.33 1.12 250 238.23 155.88 1.16 123.40 1.38 87.34 1.26 * Effect gibberellic acid develop very thin, elongated plants. TABLE IX Treatment Dose Ch a Ch b Ch Ch a Ch b Ch Total Ch (a + b) ppm mg / kg mg / kg (a + b] | % % (a + b) chlorophyll ve as % mg / kg % all- of total mass lené mass untreated control determination - 0.55 0.12 0.67 100 ALIGN! 100 ALIGN! 100 ALIGN! 0.63 100 ALIGN! BF-51 500 0.77 0.29 1.06 140 241.7 158.2 1,21 192.1 250 0.71 0.16 0.87 129.1 133.3 129.8 0.93 147.6 IAA 500 0.57 0.12 0.70 103.6 100 ALIGN! 104.5 0.96 152.4 250 0.51 0.12 0.62 92.7 100 ALIGN! 92.5 0.62 98.4 GA 500 0.45 0.11 0.56 81.8 91.7 83.6 0.81 128.6 250 0.38 0.10 0.47 69.1 83.3 70.2 0.55 87.3

Total chlorophyll content in all green matter = Ch (a + b) x average green weight of one plant.

The results show that all three substances significantly accelerate plant development as compared to the untreated control group.

However, the ratio of plant height to green weight indicates that BF-51 appears to be more beneficial than the comparative compounds. This suggests that the corn cob is not adversely affected by BF-51, whereas by the action of gibberellic acid it develops disproportionately larger plants with unfavorable habitat.

Chlorophyll values indicate that BF-51 shows a beneficial effect on the amount of chlorophyll formed in 1 g or in all green plants.

Example 16

The root zone of tomato seedlings, after planting, is sprinkled with 0.1 liter of 250 ppm BF-51 90 MSC solution. Development is evaluated after six weeks. The results are shown in Table X.

TABLE X

Treatment Dose Vzeji- Average Number of side Number of buds Note PPm three ° / o height one shoots on flowers on one plants one plant plant cm% pieces% pieces%

BF-51 90 WSC 250 100 59.6 124.1 10.6 165.5 25.2 143.1 dark green control assay - 100 48.0 100.0 6.4 100.0 17.6 100.0 light green

The effect of the treatment increases the growth of the shoots and multiplies the number of side shoots and flower buds.

Example 17

The "Jonatan" apple tree is sprayed eight times (4 repetitions) with 2,000 ppm BF-51 90 WSC every seven or eight days.

The ripening process of the treated apples is tested by measuring respiration (Table XI) and measuring the hardness of the fruit pulp (Table XII). The shelf life of the treated apples was also tested (Table XIII).

TABLE XI

Measurement Time BF-51 90 WSC Control Determination

5. 9. 1984 9.5 8.9 12. 9. 1984 9.3 8.6 19. 9. 1984 8.9 8.5 27. 9. 1984 8.6 7.8 Oct 3, 1984 8.5 7.7 10. 10. 1984 7.9 7.0 17. 10. 1984 7.5 6.5 24. 10. 1984 6.9 6.1 31. 10. 1984 6.6 5.8 8. 11. 1984 6.1 5.4 14. 11. 1984 6.0 5.1 21. 11. 1984 5.8 4.9 28. 11. 1984 5.7 4.8 4. 12. 1984 5.6 4.6 11. 12. 1984 5.5 4.4 TABLE XII Apple Breathing Power (Ujfehértó, 1984) Measurement time BF-51 90 Control determination 5. 9. 1984 686 508 12. 9. 1984 503 546 19. 9. 1984 531 668 27. 9. 1984 542 710 Oct 3, 1984 610 770 10. 10. 1984 721 821 17. 10. 1984 742 942 24. 10. 1984 793 1042 31. 10. 1984 842 988 14. 11. 1984 887 1064 21. 11. 1984 910 1066 28. 11. 1984 931 1109 4. 12. 1984 951 1210 11. 12. 1984 967 1262

Note: Data are given in mg / kg / d CO2.

TABLE XIII

Apple Shelf Life (Ujfehértó, 1984)

Treatment

The stored apple is intact with spots with zana peel brown flesh spoiled total

BF-51 90 incomplete 550 34 - 4 588 % 94.5 4.8 - 0.7 100.0 control incomplete 421 54 28 16 519 determination % 81.1 10.4 5.4 3.1 100.0

Beginning of storage: 15. 10. 1984

End of storage: 3 April 1985

The measurement results show that the ripening process of apples treated with BF-51 slows down, allowing even later harvested apples stored in storage at the optimum harvesting or storage stage of maturity to achieve the expected favorable shelf life.

The data in Table XIII shows that the shelf life of apples treated with BF-51 is favorable despite late harvesting and storage.

Claims (1)

OBJECT OF THE INVENTION Plant growth regulating agent, characterized in that it contains 3-isononyloxypropylammonium methylphosphonate as the active ingredient.