Adaptation coefficient and crop capacity of tuberous potato varieties grown as early and double crops

This paper investigates potato varieties on different condition as whole. On this way, surveys were conducted over potatoes that weregrown as early and double-grown cropsin the Zarafshan valley. Finally, theirproductivity and adaptation coefficient have been defined at all. However, this figure is 3–5 times less than in production. The achievement of potentially productive crops is largely dependents on the conditions of cultivation and the ability of the plant (grade) to withstand the stressful factors (A. Juchenko, 1994). It was covered in a cool dark place for 3–4 days with a tarpaulin. Agrotechnology measures were carried out in accordance with recommendation and agrotechnological map. The achievement of potentially productive crops is largely dependents on the conditions of cultivation and the ability of the plant (grade) to withstand the stressful factors (A.Juchenko, 1994). At the same time, a new notion of "yields of the average varieties" was used to describe the differences in crop yields.