RU2460298C1 - Stimulating agent for presowing treatment of cereal crops seeds - Google Patents

Abstract

FIELD: agriculture.

SUBSTANCE: invention relates to agriculture. Dimethyl (2,2- dichlorcyclopropylmethyl) phosphate of formula C₆H₁₁CI₂O₄P is used as a stimulating agent for presowing treatment of cereal crops seeds.

EFFECT: invention enables to increase the viability and germination of cereal crops.

1 tbl, 1 ex

Description

The invention relates to the field of agriculture and is intended to increase the energy of germination, germination of seeds and accelerate the start of ripening of crops.

It is known the use of copper (II) bismalonamide nitrate Cu (NO ₃ ) ₂ · 2CH ₂ (CONH ₂ ) ₂ as a stimulator of grain growth [1].

It is known to use bis (diethylammonium) dihydrogen-1-hydroxyethyl-1,1-diphosphonate monohydrate as a growth stimulator for crops root crops [2].

It is known to use di-n-nitrophenyl ester of strylphosphonic acid as a growth stimulator for spring wheat [3].

It is known to use copper (II) dihydrate tetraaquababismalondiamide sulfate [Cu ₂ (SO ₄ ) ₂ · (C ₃ H ₆ N ₂ O ₂ ) ₂ (H ₂ O) ₄ ] · 2H ₂ O as a means for presowing treatment of seeds of agricultural crops [4] .

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

The invention is aimed at creating a stimulator that accelerates the energy and speed of germination of seeds of grain crops.

The technical problem solved by the invention is the expansion of the range of stimulants for presowing treatment of seeds of grain crops.

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

This is achieved by the use of dimethyl (2,2-dichlorocyclopropylmethyl) phosphate C ₆ H ₁₁ Cl ₂ O ₄ P of formula (I) as a means of increasing the germination energy and germination of seeds of grain crops.

The proposed stimulant is a colorless, clear liquid with an ethereal odor, sparingly soluble in water and readily soluble in ordinary organic solvents.

The structure of dimethyl (2,2-dichlorocyclopropylmethyl) phosphate was confirmed by IR and ¹ H NMR spectra, and the composition by elemental analysis. The IR spectrum of dimethyl (2,2-dichlorocyclopropylmethyl) phosphate contains absorption bands confirming the presence of heme-dichlorocyclopropyl [3080 (ν _CH ), 750-760 cm ^-1 (ν _C-CI )] and dialkoxyphosphoryl groups [1280-1290 (ν _{P = O} ), 990-1050 cm ^-1 (ν _POC )]. In the ³¹ P- { ¹ H} NMR spectra, the obtained compounds appear as single signals in the region (-2) - 1 ppm. In the ¹ H NMR spectra, the protons of the cycle are recorded as a multiplet with δ 1.86-1.87 ppm. (CH) and a doublet with δ 2.10-2.11 ppm, ³ J (HH) 9.2 Hz (CH ₂ ). Oxymethylene protons are magnetically nonequivalent; therefore, they give doublets in the spectrum of doublets with δ 4.00-4.01 ppm, ² J (HH) 9.8 Hz, ³ J (HP) 8.5 Hz and a multiplet with δ 4.20-4.21 ppm. The protons of alkoxyl groups resonate in ordinary regions. Thus, the methoxy group is characterized by a doublet with δ 3.73 ppm, ³ J (HP) 12.0 Hz. Found,%: Cl - 28.39, P - 12.34. Calculated,%: Cl - 34.41, P - 12.32.

Example. Seeds of Priokskaya wheat and Argamak oats were soaked in distilled water (control) and in 0.01%, 0.005% - 0.001% aqueous solutions of dimethyl (2,2-dichlorocyclopropylmethyl) phosphate for 2 hours from calculation 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 aqueous solutions of dimethyl (2,2-dichlorocyclopropylmethyl) phosphate on the germination energy and laboratory germination of cereal seeds Culture Concentration% Germination energy,% Laboratory germination,% Variety wheat "Priokskaya" 0.01 82 86 0.005 85 91 0.001 87 93 0 (H ₂ O) 84 88 Oats of the Argamak variety 0.01 72 81 0.005 79 90 0.001 81 93 0 (H ₂ O) 75 77

From the data table. it follows that when seeds are treated with a 0.001% aqueous solution of dimethyl (2,2-dichlorocyclopropylmethyl) phosphate, the germination energy increases by 3.0% (Priokskaya wheat) and 6.0% (Argamak oats), laboratory germination is increased by 5.0% (Priokskaya wheat) and 16.0% (Argamak oats).

Thus, the use of a stimulant for pre-sowing treatment of grain seeds containing dimethyl (2,2-dichlorocyclopropylmethyl) phosphate can significantly increase the germination energy and germination of Priokskaya wheat seeds and Argamak oats, which accelerates the start of crop maturation.

Information sources

1. RU No. 2374254, C1, cl. C07F 1/08, A01N 55/02, 05.26.2008.

2. RU No. 2283317, C1, cl. C07F 9/38, A01N 57/18, A01P 21/00, 03/21/2005.

3. Application 2009135931/04, cl. A01N 57/22, A01P 21/00, C07F 9/40, 09/28/2009.

4. Application 2009140526/04 (057622), cl. A01N 59/20 ,, A01P 21/00, 02/02/2009.

Claims (1)

The use of dimethyl (2,2-dichlorocyclopropylmethyl) phosphate C ₆ H ₁₁ Cl ₂ O ₄ P formulas as a stimulant for presowing treatment of seeds of grain crops.