*Assistant, Doctor of philosophy in agricultural sciences (PhD), Department of genetics, plant breeding and seed production of agricultural crops, Tashkent State Agrarian University, Uzbekistan Email id: ejahongir9090@mail.ru
**Associate Professor, DcS, Department of genetics, plant breeding and seed production of agricultural crops, Tashkent State Agrarian University, Uzbekistan Email id: axmedov78@mail.ru
***Bachelor Student, Department of genetics, plant breeding and seed production of agricultural crops, Tashkent State Agrarian University, Uzbekistan
Online published on 15 May, 2021.
Purposefulness of using the performedfamilies 0–445, 0–580, 0–455 in the genetic and breeding researches for improving offiber output and the families of 0–580, 0–455, 0–520 to improve the fiber length on the dependence of their genotypes has been presented in this paper. In general, similarity of a high dominance of varieties in the positive indexes on the fiber output and fiber length in combination of various soil-climatic zones was noted.
Cotton Plant, Genotype, Hybrid, Inter Variety, Family, Fiber Output, Fiber Length