Growing Onions (Allium Cepa L.) By Seedlings At Repeated Sowing Period InUzbekistan Conditions

In this article article provides information on the study of seven onion varieties and hybrids when grown by the seedling method in repeated culture. Field germination of onion seeds is high – 94,3-92,7% in varieties and hybrids Pespazak, Banko F1, Daytona F1, Yellow Spanishand Ispanskiy 313. It was found that 12-13 days after full sprouts the first, 3-4 leaves are formed 18-22 days after the formation of the first leaf. Before planting determine the number of true leaves - 4.1-3.1, pieces, the length of the large leaf – 17,9-28,1 cm, leaf diameter – 4,8-6,5 mm, the average weight of seedlings – 5,4-8,9 g. It was found that hybrids Daytona F1, Banko F1 and Istikbol yielded 51-70% more than the Karatalskiy (standard) variety and was higher than all other varieties. The average weight of marketable bulbs of this variety and hybrids was 10-21 g higher than that of the control variety. The number of mature bulbs in the marketable yield is 85,6% in Daytona F1, 60,4% in Banko F1 and 63,9% in Istikbol variety, and their average weight increased to 26,0 g from 18,0 g.