COMPARATIVE ASSESSMENT OF INTROGRESSIVE COTTON GENOTYPES BY THE ELEMENTS OF PRODUCTIVITY AND YIELD OF RAW COTTON IN THE CONDITIONS OF CENTRAL TAJIKISTAN

Abstract

Based on the results of studying the best samples from the collection of introgressive genotypes (hybrids), 2 combinations with significant indicators of economically valuable traits were identified. New genotypes are the best sources and donors of traits – the number of full-fledged pods per plant, the mass of raw cotton per pods and high productivity, which are offered as a starting material in breeding studies when breeding new varieties of intensive type of cotton.The yield of raw cotton according to the studied hybrid combinations is in the range of – 79,3-100,8 g /plant, or 65,8-83,6 c/ha when calculating the plant density of 83 thousand / ha. Their deviation relative to maternal and paternal varieties was 23,3-49,8 g/plant from ♀ and 30,7-65,1 g/plant from ♂.