The effectiveness of the influence of biological products on the energy of germination and germination of coniferous seeds

Abstract

Pine and spruce are one of the main forest-forming species of the Republic of Tatarstan. The success of the annual volumes of reforestation largely depends on the availability of high-quality planting material in the forestries. Annually, for the purpose of reforestation, standard planting material is grown in the amount of 25 million pieces. There are currently 50 nurseries operating on the territory of the region. To maintain their productivity, it is necessary not only to provide plants with all the important macro- and microelements during the period of growth and development, but also to apply various methods that increase the quality of seedlings and resistance to various diseases. One of such effective methods is the pre-sowing treatment of seeds in solutions of biological preparations. Studies to identify the effectiveness of drugs were carried out in laboratory conditions of the Faculty of Forestry and Ecology. Biological preparations produced by Bionovatic were used – Biodux, Organit-N and Organit-P. The treated seeds were germinated in Petri dishes and a hydroponic installation for 15 days in accordance with GOST. During the studies, the germination energy and germination of coniferous seeds were determined, and growth rates of seedlings were measured. The germination of seeds during germination in Petri dishes turned out to be on average 11% higher, the germination energy was 10% higher, and the mortality was 4% lower than in a hydroponic installation. However, in the hydroponic setup, the effect of preparations on growth parameters was 11% higher than in experiments with Petri dishes. According to the results of the experiments, the best result, both on the germination of seeds and on the growth characteristics of seedlings, was shown by the preparation Organit-N. The greatest efficiency of the use of biological preparations was achieved on the seeds of Scots pine.