AGROTECHNICAL METHODS FOR INCREASING THE PRODUCTIVITY OF WINTER WHEAT PROMISING VARIETIES
The authors present the results of many years research on the study of the growth regulators “ХЭФ ВР” and Stabilan BP influence on the yield and quality of winter wheat of new varieties – Alekseich and Adel, selected by the National Center of Grain named after P. P. Lukyanenko in the steppe zone of the Mozdok region, Republic of North Ossetia – Alania. The aim of our research was to improve the tech nology of winter wheat cultivation using the new generation plant growth regulators “ХЭФК”, which stimulates the growth and volume of the root system, strengthens the stem by reducing the length of internodes and increasing the diameter of the stem, prevents lodging of crops, and has a positive effect on yield and quality. Stabilan slows down the growth of stem cells in length, which leads to a decrease in plant height and thickening of the spike, providing an increase in yield and grain quality. To achieve this goal, the research tasks included studying the effect of plant growth regulators on the growth processes of winter wheat at the initial stages of ontogenesis, on the yield and quality indicators of winter wheat grains of the Alekseich and Adel varieties in the steppe zone of the Mozdok region of the Republic of North Ossetia – Alania. Our studies have shown that growth regulators had a positive effect on the processing of seed material and sowing of winter wheat varieties Alekseich and Adel. The grain yield is increasing; the increase in relation to control was up to – 1.36 t/ha. The growth regulators “ХЭФК” and Stabilan were studied; they had a positive effect on the quality indicators of winter wheat grain, on the protein content, and the weight of 1000 grains. The highest yield was obtained on the variant with the use of the growth regulator “ХЭФК” – 4.63 t/ha.