PECULIARITIES OF IMPLEMENTATION OF STIMULATING ACTIVITY IN WINTER WHEAT FOR PROMISING SUBSTANCES

Abstract

The use of the necessary stimulants can increase the yield of the crop by 10-15% due to powerful regular growth, especially in difficult climatic conditions. Purpose. The aim was to investigate the limits of variability according to laboratory indicators of germination and germination energy according to the variety, the applied substance and its concentration. Methods. For the varieties Pozitsia Odeska, MIP Feeriya, MV Nador, Tenor, MV Menrot, an analysis was carried out to determine the characteristics of germination energy (4 days) and laboratory germination (7 days) for treatment with an aqueous solution of promising growth-regulating substances CA-64 (potassium [1,2,4]triazolo[1,5-c]quinazoline-2-thiolate), CA-79 (potassium tetrazolo[1,5-c]quinazoline-5-thiolate), CA-67 (5-(2-aminophenyl )-1H-1,2,4-triazole-3-thiol). The control was distilled water. Working solutions were used in concentrations of 0.01%, 0.02% and 0.04%. Germination was carried out in rolls of filter paper. Results. It was established that, in general, the energy of germination and germination did not depend on the variety factor, but only on the concentration of the factor, and the effect on the second parameter is relatively less clearly differentiated by concentrations than for energy. For CA-64 and CA-79, germination energy increased up to a concentration of 0.02%, except for some varieties, after which a significant negative effect was felt at the action of 0.04%. Laboratory similarity also increased up to a concentration of 0.02% under the influence of CA-64, except for certain varieties, after which a significant negative effect was felt under the influence of 0.04%. The effect of CA-67 was insignificantly positive or negative starting from 0.02%. The effect of CA-64 0.02% led to a significant positive effect, although the effect of the drug may not be so successful depending on the variety (mainly the Tenor variety) and the quality of the source material (seeds of the variety MV Menrot). The positive effect on germination energy is more clearly expressed, so the ability of the substance to obtain regular seedlings increases. Findings. The study of the presented substances showed that it is more optimal to use CA-64 and CA-79 in a concentration of 0.02%, and CA-79 can be more effective, and establishing the possibility of obtaining a reliable difference requires a significant expansion of the amount of research material. The results show the significant possibilities of using these drugs as growth-stimulating substances, which can significantly improve germination energy and laboratory germination, especially when compensating for significantly lower quality of seed material.