Selection of evening samples of Brassica Capitata lizg

¹ Research Institute of Vegetable, Melon crops and Potato, Tashkent, Uzbekistan

^* Corresponding author: shoxsita123@gmail.com

Abstract

The aim of the research work was to select a variety of white cabbage for cultivation in repeated crops in the late period, to determine the coefficient of variation of phenological indicators of varieties (V, %), biometric, morphological and economic traits of varieties, to determine the correlation coefficient (r) between the relationship of indicators. In the experiment, 8 varieties and hybrids of white cabbage brought from different countries and 6 local varieties were selected from among them, on the basis of repeated sowing in the conditions of the Tashkent region in the late period. “Saratoni” and “Sharqiya-2” varieties were taken as standard. The experiment is non-reversible, each variety has 4 rows, the length of the is 10 m. Each variety was planted on 28 m². Planting scheme 70x40 cm. Standard cultivars were placed after every 6 cultivar samples. The results of the study showed that, compared with the standard varieties Sharkia-2 and Saratoni among 14 varieties studied in the cultivation of white cabbage in the late period of the highest yield was the hybrid Geant F1 137.1%, followed by hybrid Kozak F1 - 130.4% and hybrid “W61-19” F1 - 135.4%. Economic efficiency of yield (70.9% for the standard variety), 95.0% for hybrid Geant F1, 90.9% for hybrid Kozak F1 and 94.0% for hybrid “W61-19” F1.