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Theoretical prerequisites for studying the seeds ozonation

The paper presents the theoretical prerequisites for studying the problem of seeds ozonation. The analysis of scientific papers describing the results of experimental studies in the field of agricultural crops seeds ozonation has been carried out. Based on this analysis, the theoretical system for determining the seed germination after treatment with ozone has been proposed. This theoretical approach can be useful for studying the ozone concentration effect on seed germination for further agricultural crops productivity improving.

Reproductive ability of extrazonal spiecies

The silvicultural taxation characteristic of English oak has been carried out under the conditions of the Vologda region. The assessment of the reproductive capacity of the species by examining the biometric indicators of acorns and by germination tests has been made. The assessment of natural regeneration has been carried out.

Trees reproductive ability in human environment of the European North

Green spaces in the central part of Vologda have been inventoried. Phenological observations of flowering and seed maturation phases have been performed. Reproductive ability of the most common types has been studied. Trees which can be used as an original seed materials have been selected. Recommendations for reproduction of the studied species have been prepared.

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