YIELD OF EARLY ASIL VARIETIES OF POTATOES WITH DIFFERENT DESTINATION IN THE CONDITIONS OF THE KBR MOUNTAIN AREA
At the present stage of potato growing, more and more attention is paid not only to potential productivity, but to a set of assortment of varieties of different ripeness for versatile use with high quality indicators. Lately, domestic breeding work has achieved significant success. Varieties with high potential, which can compete with foreign varieties and hybrids in terms of productivity and quality indicators, have been developed. To introduce them into production, it is necessary first of all to establish seed production of higher reproductions, to develop a varietal agrotechnology of cultivation for specific conditions of cultivation. The article presents the results of studies on the influence of agrotechnics in the formation of high-quality seed potato productivity in five competitive domestic varieties in the virus-free environment of the mountain zone of the Kabardino-Balkarian Republic, depending on planting density. The results of the studies made it possible to note that the density of planting standard tubers weighing an average of 80 g (40-50 mm over a large diameter) averaged 56 thousand/ha, and smaller ones up to 50 g (up to 40 mm) up to 67-69 thousand/ha Such density allowed to increase the yield of standard seed fraction, tubers of 35-45 mm in size. The average productivity increases with increasing planting density in all tested potato varieties by 22%. It was established that the yield of commercial tubers with a mass above 100 g increases with a decrease in the density of planting from 71 to 57 thousand. PC. on 1 hectare.