RU2752962C1 - Method for pre-seeding treatment of seeds of robinia pseudoacacia - Google Patents

Abstract

FIELD: agriculture.

SUBSTANCE: invention relates to agriculture and forestry, namely to a method for pre-seeding treatment of seeds of woody plants. The method for pre-seeding treatment of seeds of Robinia pseudoacacia consists in the fact that prior to seeding, the seeds are scalded with water at a temperature of 90°C. After the water is completely cooled to a temperature of 20±2°C, the seeds are separated from the water and placed for 10 to 15 minutes in a solution of electrochemically activated water with a pH of 10 and an oxidation-reduction potential of -400 mV.

EFFECT: method provides increased sprouting energy and accelerated seed germination, reaching 86%.

1 cl, 1 tbl

Description

The invention relates to agriculture and forestry, and in particular to a method for pre-sowing treatment of seeds of woody plants. There are known methods of pre-sowing treatment of seeds of woody and shrub plants with an aqueous extract from the shoots of wild rosemary species Ledum palustre L. with a concentration of more than 10% (RU 268119 C1, 03/04/2019), an aqueous solution of a growth stimulator based on a natural mixture of triterpene acids isolated using aliphatic alcohols, an aqueous solution of a growth stimulator based on a natural mixture of triterpenic acids contains triterpenic acids in an amount of 40-60 mg / l, as well as a complex of micro- and macroelements in a chelated form, which contains nitrogen 49.0-49.5 mg / l, sodium 34, 0-34.5 mg / l, calcium 27.0-27.5 mg / l, iron 1.0-1.5 mg / l, magnesium 2.5-3.0 mg / l, silicon 6.0- 6.5 mg / l. In this case, triterpenic acids are obtained from the needles and shoots of Juniperus communis L. (RU 2673951 C1, 03.12.2018). The disadvantages of these methods of pre-sowing seed treatment are the complexity of the technology and the laboriousness of obtaining drugs.

A known method of pre-sowing treatment of larch seeds to accelerate and increase the percentage of germination, including keeping wet seeds under snow and drying them to a loose state. The essence of the method is that before laying the seeds for stratification, they are treated with the preparation tetramethylthiuram disulfide TMTD at the rate of 4.0 g per 1 kg of seeds, after drying, they are packed in canvas bags, while the seed layer should be no more than 2 cm, kept before sowing in for two months, immediately before sowing, the seeds are soaked in potassium permanganate 0.2% for 10-15 minutes, for pickling against fungal diseases, they are then soaked for 3 hours in a solution of Biopreparation Zircon, then the seeds are dried and sown (RU 2683543 C1, 28.03 .2019). This method was adopted by us as a prototype.

The disadvantage of using tetramethylthiuram disulfide is the high cost of the drug, toxicity and increased requirements for the safety of use.

The objective of this invention is to expand the range of effective and environmentally friendly stimulants for seed germination of shrubs.

The technical result is an increase in germination energy and acceleration of seed germination.

This is achieved by the fact that in the proposed method of processing seeds of robinia pseudoacacia, before sowing, the seeds are scalded with water at a temperature of 90 ° C, after it has completely cooled to 20 ± 2 ° C, the seeds are separated from the water and placed for 10-15 minutes into a solution of electrochemically activated water with a pH of 10 and a redox potential of -400 mV.

Comparative test data on the treatment of Robinia pseudoacacia seeds with activated water are shown in the following example.

Example.

For the tests, electrochemically activated water was taken with indicators of the redox potential of -400 mV (pH 9.62), -700 mV (pH 10.67), +400 mV (pH 6.5), +600 mV (pH 5, 9), and +800 mV (pH 4.1), control - ordinary tap water +265 mV (pH 7.9) with a temperature of 18-20 ° C.

Germination of seeds of robinia pseudoacacia is carried out according to GOST 13056.6-97. First, the seeds were scalded with water with a temperature of 90 ° C, after the water had completely cooled down to 20 ± 2 ° C, it was drained and the seeds were placed for 10-15 minutes in a solution of electrochemically activated water with a corresponding potential. Seeds treated with activated water, 100 pieces each, were laid out in Petri dishes, on a wet bed prepared from filter paper, moistened with water with the same redox potential as the seeds themselves. The seed bed was kept moist, and the filter paper was periodically moistened with water of the appropriate potential. Germination was carried out in a thermostat at a temperature of 22 ± 2 ° C. The experiment was carried out in 3 samples for each variant. Seedlings were counted within the time limits established by GOST for pseudoacacia robinia (white acacia) - on days 2, 3, 5, 7 and 10. On the day of each seedling count, normally germinated and rotten seeds were removed from the bed. The germination energy was determined on the 5th day, and the germination rate on the 10th day, not counting the day of the experiment.

The results of the experiments are shown in the table. The table shows that activated water has a positive effect on the germination of seeds of Robinia pseudoacacia, and the action of activated water with a potential of -400 mV showed the best result.

Thus, the use of the invention contributes to an increase in the germination energy of seeds of robinia pseudoacacia (white acacia) and an increase in germination, and also has an effective complex effect on the seed.

Claims (1)

The method of pre-sowing treatment of seeds of robinia pseudoacacia, characterized by the fact that before sowing, the seeds are scalded with water at a temperature of 90 ° C, after it has completely cooled to 20 ± 2 ° C, the seeds are separated from the water and placed for 10-15 minutes in a solution of electrochemically activated water with pH 10 and an indicator of the redox potential of -400 mV.