گزارش نهایی بررسی ومقایسه عملکرد علوفه ارقام شبدر ایرانی و تعیین سازگاری آنها باشرایط اقلیمی مشهد

To determine the most suitable persian clover variety adaptable to mashhad climatic conditions, the yield of ten varieties from native persian clover namely SHARZAD, OTAJ, KORDESTAN, GHORCHIBASH, ALASHTAR, SORYAN, EGHLID, HARATI, and KORDKAN were compared in a randomized complete block design (RCBD) with four replications over a three years period (1993- 1995). The results of the simple and also combined analysis of variance on the fresh and dry forage yield over the three years and use the stability indexes (variation range and variance of cultivars means in the three years) showed the significant differences between years, varieties and year x variety interactions. Comparisons of variety mean yields with duncan multiple range test and stability indexes showed that varieties EGHLID and KHORASAN with yield means of 9.93 and 10.23 t/ha. were the best and stable varieties.