بررسی تنوع ژنتیکی و وراثت پذیری برخی صفات زراعی در خانواده های ناتنی یونجه

Estimation of genetic variation is very important in breeding programs and existing of high genetic variation lead to increase the response to selection. The objective of this study was to investigate genetic variation for agronomic traits and yield components in 12 alfalfa half-sib families. Thirty five individuals of each half-sib family were grown and analyzed basis of completely randomized design in separate pots into Farm conditions. Based on univarite analysis of variance for all traits except shoot fresh weight, leaf dry weight and leaf/stem ratio significant difference were observed. The heredity was broad ranging from 4 % for plant fresh weight and shoot dry weight to 58 % for cotyledon leaf length. Cluster analysis based Ward method, divided half-sib families into four groups that only the Renger half-sib families, one of the two cultivars stand in one group.