COMPARATIVE ASSESSMENT OF INTROGRESSIVE COTTONGENOTYPES BY THE ELEMENTS OF PRODUCTIVITY AND YIELD OFRAW COTTON IN THE CONDITIONS OF CENTRAL TAJIKISTAN

Abstract

The article presents theoretical justifications and practical results on the study of a collection of new varieties of parent pairs of medium-fiber cotton for hybridization. Consequently, all parent varieties differed in the passage of the main phases of development, by the end of the growing season, all studied gene pools had a large number of boxes per plant.The height of plants on average on August 1 (2019-2021) for local selection reached – from 75,0 to 80,6 cm, for foreign ones – 67,3-83,3 cm. The number of boxes for September 1, 2019-2021 of our studies, the average for local varieties was from 14,3-15,9 pcs./plant, and for foreign ones – 13,9-15,7 pcs./plant. Significant indicators stood out 5 foreign – ALC-86/6, Cocer-4104, DP-4025, NAD-53, NAK-99/1 and 2 local – Dusti-IZ, Ziroatkor-64, which are attached to be used in further breeding studies, as valuable donors with a complex of economically useful features.