CHARACTERISTICS OF PRODUCTIVITY OF MEDIUM-FIBER COTTON VARIETIES IN A BREEDING NURSERY

Abstract

The article provides characteristics of various varieties of medium-fiber cotton, according to important economically valuable characteristics: the yield of raw cotton per bush, the size of one boll, fiber yield, etc. Consequently, during the research period, on average, the weight of raw cotton per boll varied in the range – 5,5-6,3 g. The following 5 (Ziroatkor-64, Sharora-1020, Dusti-IZ, Farovon-20 and Sorbon) studied different genotypes stood out with significant coarseness – 6,0-6,3 g. Their superiority in comparison with the standard variety it reached 1.0-1.3 grams. With a plant density of 83 thousand per plant/ha, the most productive genotypes amounted to 75,9- 91,1 c/ha. Calculated per plant, the yield of raw cotton reached 91,5-109,8 g. Their deviation from the standard was 38,1 53,8 c/ha, or 46,5-64,8 g/plant.