Генотипни различия в растежната активност на семената от сортове зимен ечемик

Abstract

At the Institute of Agriculture - Karnobat, Bulgaria, laboratory research was conducted on 5 varieties of two-row and 5 varieties of multi-row winter barley. The aim of the research is to determine the genotypic differences in the initial growth of winter barley varieties. The varieties were studied in a laboratory experiment using the roll method. Number of indicators number of roots (number), length of roots (cm), length of the first leaf (cm) were recorded. 20 seeds of each variety were placed on filter paper in 3 replicates. The rolls are immersed in water and after 10 days the length of the first leaf, the number of roots and their length are counted. The results of the analysis show that Zahir and Alexan varieties form the largest number of roots. The Lardeya and Bozhin varieties form the smallest number of roots. The Kuber and Siela varieties have the longest root length and the first leaf. The varieties Zahir and Achinora have the smallest root length, and Lardea and Zemela have the smallest length of the first leaf. To improve the length of the first leaf, good combinations are expected when crossing the varieties Daria, Bozhin with Alexan, Achinora. Siela, Zemela, Alexan and Achinora varieties are genetically the most distant from Lardea, Kuber and Zahir in terms of length and number of roots. It is recommended to use them for crosses in order to create a better root system.