Agriculture and forestry

Didur Ihor – candidate of Agricultural  Sciences, Associate Professor, Dean of the Faculty of Agronomy and Forestry of Vinnytsia National Agrarian University (21008, Vinnytsia, Soniachna Str. 3 е-mail:ididur@yandex.ru).

Shevchuk Victoria – postgraduate student of the Department of Agriculture, Soil Science and Agrochemistry of the Vinnytsia National Agrarian University (21008, Vinnytsia, Soniachna Str. 3 е-mail: Vvictoriya07@gmail.com).

Mostovenko Voldemar – postgraduate student of the Soil Management, Soil Science and Agrochemistry Department, Vinnytsia National Agrarian University (21008, Vinnytsia, Soniachna Str. 3).

One of the possible directions of agricultural production and improvement of crop yield increasing technology is the use of chemicals of biological processes controlling with the help of plant growth regulators. The priority area in the field of crop production is the introduction of winter peas into production. The aim of the study was the highlighting of the study’s results on the effect of the microbial drug Bioinoculant and stimulant Endophyte-L1 on the processes of germination of winter pea seeds and its initial stages of growth. The research was carried out on the culture of winter pea NS Moroz varieties. Pre-sowing treatment of seeds with working solutions of Endophyte-L1 (0.01 l / t), Bioinoculant (2 l / t), mixture of Endophyte-L1 (0.01 l / t) + Bioinoculant (2 l / t), and control - with water. In the process of survey, the linear dimensions of the tap-root and seedlings, the raw matter mass of seedlings and roots in the early stages of development of winter peas BBCH (00, 03, 05, 08, 12, 13, 14, 15), as well as germinative energy and laboratory seed germination were determined. It was investigated that the highest intensity of complete swelling of winter pea seeds was observed with the use of the stimulant drug Endofit-L1, and the lowest - with the influence of a mixture of drugs Endofit-L1 + Bioinoculant. During the period of heterotrophic nutrition, the drugs Endofit-L1 and its combination with Bioinoculant had the greatest influence on the processes of winter pea germination. During the transition of plants to autotrophic nutrition, the raw cotyledon weight was decreased with the use of the stimulant Endophyte-L1 and in combination with the microbial drug Bioinoculant, which in its turn is accompanied by activation of growth processes in roots and seedlings and increased their mass and linear size. This indicates the presence of the growth-promoting effect of the drug Endophyte-L1. It is investigated that during the winter pea plants transition to autotrophic nutrition, between the raw masses of achenes and roots there is an inverse correlation of weak force (r = - 0.24) with the use of the stimulant and strong force (r = - 0, 80) under the action of drugs mixture, and between the raw masses of achenes and seedlings, this relationship is strong (r = from - 0.73 to - 0.97). Pre-sowing treatment of winter pea seeds with stimulant and microbial drugs, as well as their mixture led to germination energy increase by 3.9-5.6%  in  comparison to the control. The used drugs and their mixture  increased  the  laboratory germination of seeds by 1.6-2.3%. The best effect was found during the usage of mixture Endophyte-L1 + Bioinoculant drugs.

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