بررسی سازگاری لاین های امیدبخش کلزا در منطقه میانبندان استان مازندران‭( On Farm)‬

In order to improving of diversity of varieties which are suitable for cultivation in mid-land and up-land of Mazandaran province for increasing stability and yield increasing, 7 rapeseed genotypes including19SAR(L10),Sarigol, OKP308, SLM308, Hyola401, Zarfam and RGS003 were planted based on randomized complete block design with four replications at Shavilasht and Kiasar (about 700 and 900 m above sea level, respectively) during 2009-2010. The results of combined analysis of variance reveled significant mean square of locations for all studied the traits including seed yield. The mean of seed yield of genotypes at Shavilasht and Kiasar were 2159.79 and 1762.02 kg/ha respectively. Significant mean square of genotype x location was observed for seed yield indicating different ranks of genotypes in different locations. At Shavilasht the genotypes including Sarigol and 19HSAR(L10) with 2850.93 and 2420.37 kg/ha seed yield respectvely were considered as superior genotypes but at Kiasar the genotypes including Zarfam and 19HSAR(L10) with 2385.83 and 2340 kg/ha seed yield respectvely, had high yield in compare to other genotypes. Key words: Combined analysis, rapeseed, seed yield, stability