COMPARATIVE ASSESSMENT OF EARLY POTATO VARIETIES BY PRODUCTIVITY IN THE NORTHERN FOREST-STEPPE OF THE TYUMEN REGION
The Introduction of new varieties will increase the productivity of potatoes, and the rationale for choosing a new variety is an urgent task of potato growing. The purpose of the research is to conduct an economic assessment of potato varieties of the midearly maturity group. In terms of the number of plants, almost all the studied varieties were in the range of 7.0-7.5 PCs. The Highest weight of tops at the time of harvesting was observed in the Baron varieties - 351.7 g and Lux-325.5 g, which is higher than the standard variety by 61.6-35.4 g. A high level of formation of a large number of tubers, combined with a high productivity potential, was noted in the Baron variety (20.0 PCs./Bush), Lux (18,7 PCs./Bush), which is higher than the standard red scarlet variety by 2.4-3.7 PCs./Bush. In the experiment, we identified varieties with a high average tuber weight with a high level of productivity Lux - 107.9 g, Red Scarlet - 102.5 g, Baron - 84.5 g, Charoit - 92,0 g. The highest potato yield was noted in the Lux variety - 49.1 t/ha, which is higher than the standard Red Scarlet variety by 1.30 t/ha, the Baron variety had a yield almost at the level of the standard variety