The features of growing new potato varieties under conditions of northern forest-steppe of Western Siberia

The results of a comparative testing of potato varieties on soddy-podzolic loamy soil in sub-taiga area of Western Siberia are presented in this article. The productivity and disease resistance of potato varieties in conditions of Phytophthora epiphytoty were estimated. The aim of this work is the studing and selection of the most productive, resistant to diseases and pests potato varieties, created in different agro-climatic zones, for cultivation in the Northern forest-steppe of Western Siberia. According on the results of ecological trails under conditions of northern forest-steppe zone of potato varieties, which were getting from All Russian Institute of Potato Growing in 2013, it is established that the cultivation without fertilizers, pesticides, irrigation the most productive, resistant to phytophthorosis and viruses diseases, with yield exceeding 28 t/ha varieties were selected: Matushka, Lileya, Serenevyi tuman, Sudarynya, Leaga, Gloria, Irbitskiy, Kamenskiy. The strongest drought in July - August possessed identify the varieties with field resistance to stress factors and served green haulm until frost, which noted in late August. More resistant to drought were varieties of Siberian breeding, at the same time, a good result showed varieties from of the central regions of Russia, Belarus and Ukraine. The potato analysis on the washed tubers demonstrated a lack of infestation of bacterial diseases and late blight by sticky ground tubers. The infestation of rizoktoniosis and common scab lesions was not more than 2-3% of tubers with a defeat of less than 1/10 of the surface of the tuber. Varieties possessing field resistance to stressful environmental factors under drought and moisture deficiency are: Matushka, Sudarynya, Irbitskiy, Vektar Belarusian, Ilyinskyi, Nikulinskyi, Udacha, Valentina, Krasavchik, Hozyaushka.