Abstract
The transition to biologically based technologies is one of the priority scientific areas of agriculture and forestry in Russia. The aim of the work is to develop and modify the technology of using biological products on forest tree species and to test it on Scots pine. The effect of pre-sowing inoculation of pine seeds with biological products on soil germination, safety of one- and two-year-old seedlings and their biometric characteristics was studied. The results of the analysis of soil germination of seeds and the safety of 1-year-old seedlings showed that these biological products can be introduced into the technology of growing planting material of Scots pine. It was revealed that the seeds of sensitive trees of the Stupinskaya population turned out to be the most responsive to inoculation with biological products. A stimulating effect has been established on the survival rate of seedlings, preservation, height, growth and diameter of 2-year-old plants in a forestry area (Vernadsky forestry, Tambov region). The height of 2-year-old seedlings of pine 'Ostrogozhskaya' exceeds the control by an average of 18.1%. The use of this biotechnology in forestry production will create favorable conditions for the germination of pine seeds, the growth of seedlings and their higher survival rate.
Highlights
The high rates of climate warming in the Central Black Earth Region impose additional requirements on the species composition, seed and planting material when organizing forestry works in this region
The action of associative biological products can be divided into three types: 1) direct stimulation of plant growth and development due to metabolites synthesized by bacteria; 2) an indirect effect due to the displacement of pathogenic microorganisms from the soil microflora; 3) fixation of molecular nitrogen available to plants after bacteria die off [5]
The day before sowing, the seeds went through the process of inoculation with biological products based on associative microorganisms
Summary
The high rates of climate warming in the Central Black Earth Region impose additional requirements on the species composition, seed and planting material when organizing forestry works in this region. A large number of microbial preparations have been created, the effectiveness of which has been proven in many agricultural crops [6,7,8,9] This direction of naturecompatible biotechnology is practically absent in the Russian forest industry. For reforestation and afforestation of the main forest-forming species, this biotechnology is promising due to its low cost and environmental safety. This was the basis for its development, optimization and testing on Scots pine
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