کاربرد تجزیه GGEbiplot در شناسایی ژنوتیپ‌های کلزای متحمل به تنش خشکی در مرحله گیاهچه‌ای

In order to application of GGEbiplot analysis in identification of drought tolerant Rapeseed genotypes between 24 rapeseed genotypes (including 13 cultivars and 11 doubled haploid lines) at seedling stage, a pot experiment was conducted at greenhouse of Agricultural Biotechnology Research Institute of Iran-Karaj. This experiment was conducted in factorial based on completely randomized design with three replications with mentioned genotypes under four different soil moisture content, including 80%, 50%, 30% and 20% field capacity (FC). The results showed that GKH2005, Opera and Okapi had the high stability for percentage of final emergence and were categorized as tolerant in response to drought stress. Among four different soil moisture levels, the response of 24 rapeseed genotypes to 80%, 50%, 30% and 20% field capacity (FC) was relatively similar and because of not separation of three water content levels, they did not suitable for selection of ideal genotype. Therefore, 20% field capacity (FC) was the suitable water content level for selection of drought tolerant genotype at seedling stage. Moreover, GKH2005 had the highest tolerance to drought condition under 20% field capacity (FC).