Features of winter pea seeds germination under the action of growth regulators

Physiological features of pea seed germination under treatment with exogenous growth regulators based on biologically active substances were studied. Purpose. To investigate the influence of complex growth and development stimulators containing phytohormones and their analogs, Biosil and Gulliver Stimul, on the peculiarities of the seed germination processes and formation of the winter pea seedlings of the Moroz NS variety. Methods. Laboratory, measuring, weighing, quantitative, statistical. Results. The influence of aqueous solutions of growth regulators Biosil and Gulliver Stimul on the germination processes of winter pea seeds was analyzed. During research, it was established that the use of growth regulators contributes to the faster exit of seeds from the state of rest, which is illustrated by the active dynamics of germination. Treatment of winter pea seeds with growth regulators leads to an increase in germination energy by 10-12% and laboratory germination by 6-8% compared to the control. It was noted that the indicators of seed germination were sufficiently high in all samples, including control. The soaking in growth regulators solutions contributes to the 10-16 mg bigger swelling of seeds than in the control; better utilization of reserve compounds, and 38- 50 mg seed weight loss during germination. Phytohormones which are part of the preparations induced an increase in the development of the vegetative organs of pea seedlings, which was expressed in a rapid increase in the length of the shoot and root in experimental variants. The growth of the linear dimensions of the aboveground and underground parts of the seedlings was accompanied by the increase in the mass of raw material. Conclusions. Application of the Biosil and Gulliver Stimul composite plant growth regulators affects the processes of germination and the initial stages of growth of winter pea plants. Treatment of winter pea seeds with these preparations helps to improve seed germination and increase germination energy. The linear dimensions and mass of the raw matter of the roots and shoots of pea seedlings enlarged due to the influence of growth regulators. The maximum length of the root and shoot was observed under the use of Gulliver Stimul preparation