The method of preserving the viability of irradiated seeds

 

(57) Abstract:

The invention relates to agriculture, in particular pre gamma irradiation of seeds in inhibiting doses and storage. You are saving a larger number of viable seeds and plants and increasing the yield of mutations is achieved. In the proposed method the seeds affect the gamma-irradiation and store them during hypoxia. While the seeds for 20-30 days before gamma irradiation isolated from the external environment of the film-forming air - and water-resistant substances and retain the film on the seeds before sowing and germination. The proposed invention will enable you to save a large number of viable seeds.

The invention relates to crop production. In particular preplant gamma irradiation of seeds in inhibiting doses and storage.

There is a method of protecting seeds from gamma radiation, which consists in namachivanii seeds before irradiation in solutions of radioprotectors containing sulfhydryl groups [1].

The disadvantage of this method is the high toxicity of sulfhydryl radioprotectors and their ability to cause metabolic and structural abnormalities in the cells of living organisms [2]. Cu the x groups, responsible for the manifestation of the radioprotective properties. Therefore, radioprotectors, already before entering the seeds are partially destroyed. Namachivanii seeds in solutions of radioprotectors before irradiation eliminates the possibility of their subsequent storage after exposure to germination, because the swollen seeds start to happen metabolic processes. In some cases there is the need for storage of irradiated seeds for a certain period of time before germination, in connection with the preparation of the soil, adverse weather conditions, transportation of seeds from the processing to the place of planting, it is impossible to perform with soaked seeds. As the swollen seeds are quick to germinate, it is not possible to undertake their chronic exposure, i.e. exposure over weeks, months and over.

There are also many other radioprotectors chemical nature, but they have lower efficiency sulfhydryl compounds and also require their dissolution in water for subsequent seeds by soaking in these aqueous solutions [2].

There is a method of preserving the viability of the irradiated seeds, consisting in the treatment of seeds to ionizing radiation when the guy who installed doses, also is achieved by substitution of oxygen with gaseous nitrogen or carbon dioxide [2].

The disadvantage of this method is that its implementation is associated with energy and the means to achieve hypoxia, in addition, you must have the appropriate equipment and capacity for high integrity and create the desired gas environment.

The problem to which the invention is directed, connected with the preservation of the viability of irradiated seeds due to the weakening of the effects of mutagenic and inhibitory doses of ionizing radiation during and after irradiation, i.e., in the storage process.

The technical result from the use of the invention is to maintain a larger number of viable seeds and plants, and increase output of mutations, reducing the cost of building hypoxia and sealing, eliminates the use of toxic drugs.

The proposed method is simple, available, allows for a long time from exposure to germination of stored seeds, and use not only acute but also chronic irradiation of seeds.

The technical result of the method of saving the life of irradiated is ing isolated from the external environment of the film-forming air - and water-resistant substances and retain the film on the seeds before sowing and germination.

EXAMPLE: seeds of grain crops (wheat, barley) before gamma-irradiation cover with melted paraffin, then exposed to ionizing radiation at doses of 100-200 Gr. Seeds coated with paraffin, have at 15-21% higher field germination than untreated paraffin. Germination of seeds treated with paraffin, remains unchanged within 12 months of storage. At the same time the seed is not treated with paraffin, germination after 12 months reduced by 11-15%. Therefore, storage of irradiated seeds in conditions of limited air and water exchange with the external environment, increasing their viability.

LITERATURE

1. Grodzynskyi D. M., I. Gudkov N. Plant protection against radiation injury. -M.: Atomizdat, 1973, S. 68-77; S. 98-99.

2. Gudkov I. N. Fundamentals of General and agricultural radiobiology. Kyiv. Ed. USA, 1991, S. 124 to 128; S. 135-142.

The method of preserving the viability of irradiated seeds, including gamma irradiation and storage of seeds in hypoxia, characterized in that the seeds for 20-30 days before gamma irradiation isolated from the external environment of the film-forming air - and water-resistant substances and retain the film on the seeds before sowing and germination.

 

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FIELD: agriculture, may be used for treatment of seeds, vegetables and flowers.

SUBSTANCE: method involves applying onto seeds aqueous suspension of gluing substance and fine-dispersed peat in an amount of 0.3-0.5 by weight of seeds; introducing into aqueous suspension gluing substance of micro- and macro fertilizers and growth promoter; alternatively applying onto peat-covered seeds mixture of bentonite and peat used in weight ratio of 0.14-0.64 and aqueous suspension of gluing substance with macro- and micro fertilizers and growth promoter; rolling treated seeds in pelleting apparatus and drying.

EFFECT: improved quality of presowing treatment of seeds.

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