تحديد بيئات الاختبار الملائمة لتقييم الطرز الوراثية للشعير في سورية

This study was conducted using the participatory barley breeding trails in Syria to determine the locations that optimize genotype selection based on discriminating ability and representativeness. GGE Biplot pattern explorer was used to rank test locations. Biplot was generated and distances between the ideal and actual test locations were measured. Location with shorter distances was closer to the ideal location and was considered a more desirable test location for the traits of interest. Each test distance of location was standardized by the mean distance of all locations for each Biplot. For grain yield and kernel weight of black seeds genotypes and grain yield, kernel weight and plant height of white seeds genotypes on the basis of their close proximity to the ideal test location and low standard deviation, the most desirable test location was Al bab rotation barley after vetch or cumin and Al bab barley after barley for plant height in black seeds genotypes.