STUDY OF COTTON VARIETIES 'RESISTANCE TO DROUGHT AND SALT

Abstract

In this article, An-Bayaut-2, S-6524, Bukhara-102, Sultan, Navruz, Pakhtakor-1 and Andijan-37 varieties of cotton were introduced to the FC in the conditions of irrigated, saline, saline with sulfur chloride saline, grazing light gray soils of Syrdarya region. The volume of soil mass decreased by 0.01–0.02 g/cm3, the porosity of the soil increased by 0.2–0.8%, the water permeability of the soil increased by 2.8–14%, compared to 70–70–65%. Reduction to 5 m3/ha and reduction of salinity by 10-15%, cotton varieties to 70-270-65% in comparison with FC, 65-65-60% to 1.2-2.6 quintals of additional cotton yield, fiber length from quality indicators 0 , Fiber content up to 1–0.3%, fiber yield up to 0.2–0.9%, weight of 1000 seeds up to 0.2–0.5 g, wilt disease rate up to 2–3%, and different cotton in saline soils. Net profit from 40617-112785 soums per hectare and profitability when irrigating varieties with 70 nav70‒65% to 65‒65‒60% compared to FC The level is reported to be as high as 5.8–15%.