Study of the Value and Economic Characteristics of F3 Hybrids of Different Genetic Origin in the Conditions of Tashkent, Fergana and Kashkadarya Provinces, Uzbekistan

In Uzbekistan, extensive measures are being taken to create new cotton varieties that are competitive and whose fiber yield meets the requirements of the world cotton market. Today, in our country, the creation of cotton varieties suitable for different soil and climate provinces, with a fiber yield not lower than 40%, it is urgent, and a number of studies are required in this regard. The creation of varieties is not only the selection and acquisition of new genotypes, but also the main goal of plant selection is the search for ecological provinces where these genotypes (genotypes) provide high productivity, ecological stability and product quality. The breeder, in fact, does not select and study such apparent genotypes, but evaluates the norm of their response to abiotic, biotic and anthropogenic factors of the environment. The comparative analysis of manifestation of quantitative traits in different soil-climatic conditions, the adaptability of valuable economic traits in hybrids and ridges, the influence of genotype and environment, their interrelationship with productivity and other valuable economic traits, the ability of the genotype to respond to a set of conditions, new high adaptability and the creation of varieties, research on providing the stability of the cotton crop in different soil and climate conditions has not been carried out sufficiently.