Agroecological еще testing of за promising potato до varieties of кто domestic selection он in the бы conditions of при the North что Caucasus region они

Abstract

The studies evaluated 60 potato varieties of different maturation groups of domestic breeding in terms of productivity, quality indicators and immunity to various types of diseases. Varieties with high productivity potential and the most adaptive to the soil and climatic conditions of the North Caucasus region were identified. In the course of the research work, the following tasks were solved:

According to the results of testing potato varieties in the conditions of the North Caucasus region, the most plastic varieties of domestic originators were identified, characterized by high yield indicators in relation to standard varieties. The yield level of more than 40 t/ ha exceeded the early varieties Meteor, Leader, Mayak, Sadon, Real. The high marketability of tubers was formed by early and mid-early varieties: Gulliver (93%), Warmas (92%), Sineglazka (92%), Samba (93%), Lukyanovsky (91%). The manifestation of macrosporiosis, on average for three years, ranged from 1.7 to 12.0%. During the growing season, the manifestation of alternariosis was up to 3.3%, the active development of late blight reached up to 50%. The most common of the viral diseases were mottled and wrinkled mosaics.