RU2474118C1 - Method of stimulation of seed germination - Google Patents

Abstract

FIELD: agriculture.

SUBSTANCE: invention relates to agriculture. Presowing treatment of seeds is carried out with an aqueous solution of tris(2,2-dichlorocyclopropylmethyl) borate C₁₂H₁₅Cl₆O₃B of formula with the active ingredient concentration of 0.01% at a dose of 1 litre per 1 kg of seeds.

EFFECT: invention enables to increase germinating energy, germinating ability and to speed up the beginning of crop ripening.

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Description

The invention relates to the field of agriculture and can be used to improve the sowing qualities of seeds of agricultural crops.

It is known to use polyhexamethylene guanidine hydrochloride (PHMG) as a stimulator of growth and development of agricultural crops, as well as methods of stimulating growth and development, including pre-sowing treatment of PGMG seeds by spraying [1].

A known method of stimulating seed germination, comprising treating the seed with sodium selenate [2].

There is a method of presowing treatment of clover seeds with brine of the natural mineral bischofite sulfate type [3].

A known method of presowing treatment of soybean seeds, including presowing treatment of seeds with brine of the natural mineral bischofite sulfate type [4].

A known method of stimulating the growth and development of clover plants, including presowing treatment of seeds with an aqueous solution of sodium selenate [5].

A known method of presowing treatment of seeds, comprising exposing the seeds to a liquid medium containing a seed germination stimulator, where sodium salts of alkyl aromatic sulfonic acids are used as a stimulator [6].

Known methods can increase the energy and speed of seed germination, but are difficult to prepare and involve the use of more expensive drugs.

The invention is aimed at creating a method that stimulates the germination of seeds of agricultural crops.

The technical problem solved by the invention is to expand the range of methods for stimulating seed germination, increasing the energy of germination and germination of seeds of crops.

The technical result is to increase the energy of germination and germination of seeds, accelerate the start of ripening of crops, as well as expanding the arsenal of methods for this purpose.

This is achieved by the use of Tris (2,2-dichlorocyclopropylmethyl) borate C ₁₂ H ₁₅ Cl ₆ O ₃ B of formula (I) as a means of increasing the germination energy and germination of seeds of agricultural crops.

The proposed stimulant is a clear, colorless liquid with a characteristic odor, readily soluble in ordinary organic solvents. The structure of tris (2,2-dichlorocyclopropylmethyl) borate was confirmed by IR and ¹ H NMR spectra, and the composition by elemental analysis.

In the IR spectra, the three-membered cycle is characterized by absorption bands of stretching vibrations of CH and C-Cl, respectively, with maxima of 3093 and 749 cm ^-1 . The presence of bonds of BO and CO is confirmed by a set of intense bands in the region of 1029–1367 cm ^–1 . In the ¹ H ether NMR spectra, the protons of the cycle appear as a doublet with δ 1.63 ppm, ³ J (HH) 9.2 Hz (CH ₂ ) and a multiplet of 1.78 ppm.

Example. Seeds of wheat of the Moskovskaya-35 variety, peas of the Druzhinnik variety were soaked in distilled water (control) and in 0.01%, 0.005% - 0.001% aqueous solutions of tris (2,2-dichlorocyclopropylmethyl) borate for 2 h at the rate of 1 liter of solution per 1 kg of seeds. The determination of germination energy and germination was carried out according to GOST 12038-84 "Seeds of agricultural crops. Germination determination methods. " The accounting of germinated seeds was carried out in two terms (on the third and seventh days) in accordance with GOST (table).

Table The effect of an aqueous solution of tris (2,2-dichlorocyclopropylmethyl) borate on the germination energy and laboratory germination of agricultural seeds Culture Concentration,% Germination energy,% Laboratory germination,% Wheat grade "Moscow 35" 0 (H ₂ O) 33 91 0.01 35 95 0.005 35 94 0.001 34 92 Peas "Druzhinnik" grade 0 (H ₂ O) 31 88 0.01 33 90 0.005 32 90 0.001 31 89

From the data table. it follows that when treating seeds with a 0.01% aqueous solution of tris (2,2-dichlorocyclopropylmethyl) borate, the germination energy increases by 6.1% (wheat cultivar Moskovskaya-35) and 6.5% (peas cultivar Druzhinnik »), Laboratory germination is increased by 4.4% (wheat cultivar Moskovskaya-35) and 2.3% (peas cultivar Druzhinnik).

Thus, the use of the proposed stimulation method for pre-sowing treatment of seeds of agricultural crops containing tris (2,2-dichlorocyclopropylmethyl) borate, can significantly increase the germination energy and germination of wheat seeds variety Moskovskaya-35 and peas variety Druzhinnik, which accelerates the beginning ripening crops.

Information sources

1. RU No. 2328854, C2, cells, A01N 47/44, A01P 21/00, 09/13/2005.

2. RU No. 2183394, C1, cl. A01C 1/00, A01C 1/08, 12/06/2000.

3. RU No. 2215390, C2, cl. A01C 1/00, November 30, 2001.

4. RU No. 2174746, C1, cl. А01С 1/00, A01N 59/00, 10.01.2000.

5. RU No. 2416186, C1, cl. A01C 1/00, A01C 21/00, 09/30/2009.

6. RU No. 2058699, C1, cl. A01C 1/00, A01N 35/00, 08/14/1992.

Claims (1)

A method for stimulating seed germination, including presowing treatment of seeds with a stimulator, characterized in that the seeds are stimulated with an aqueous solution of tris (2,2-dichlorocyclopropylmethyl) borate with an active substance concentration of 0.01% in a dose of 1 liter per 1 kg of seeds.