Abstract
The article studies the influence of different fertilizing products on vigor and germinating ability of Scots pine and common spruce seeds. The research involved the following products: Humate+7, Potassium humate “Sufler”, Biohumus, Agrostimul VE, Emistim-R, Gibberellin, Etamon. The soaking of seeds in products leads to an increase in vigor, on average, between 31 and 37.0 % for Scots pine and between 5 and 13.0 % for common spruce. The germinating ability of Scots pine and common spruce seeds increases, on average, by 16.0 and 17.0 % correspondingly. Among all the products the least effective was “Etamon”. In its case, the germinating ability of seeds in laboratory conditions was 53.0 % which is 10.0 % lower than in control. The treatment by stimulators significantly influenced the development of a root system. The intensive root growth happens in the cases of “Gibberellin” and “Humate+7” – 4.4 and 5 cm corresponding to the variants of the experiment. The pre-sowing treatment positively increases the length of germs. In this case, the best results were achieved with “Gibberellin” and “Biohumus” products that gave the increase of 1.7 and 1.5 cm respectively.
Highlights
The preparation of forest plant seeds for sowing is aimed at overcoming deep or induced dormancy, stimulating mass seed germination and increasing their field germination [1]
The most common ways to prepare conifer seeds for sowing used in the Republic of Tatarstan and other regions of Russia are storage in snow layers and, sometimes, further pre-sowing treatment by growth activators
The pre-sowing treatment is based on a special mechanism: when microelements in growth activators effect on seeds, the plasm of corcule cells is deeply changed which determines the further growth and development of plants
Summary
The preparation of forest plant seeds for sowing is aimed at overcoming deep or induced dormancy, stimulating mass seed germination and increasing their field germination [1]. The pre-sowing treatment is based on a special mechanism: when microelements in growth activators effect on seeds, the plasm of corcule cells is deeply changed which determines the further growth and development of plants. Microelements speed up the germination by 2–4 days, increase the field germination of seeds, their vigor, and stability to unfavorable conditions of the environment and diseases. They increase the growth and development of plants. The use of microelements increases the liveability of young plants by 20–40 %, especially in bad weather years [2,3,4]
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