بررسی سازگاری و پایداری عملکرد دانه ژنوتیپ های گندم نان در آزمایشات یکنواخت سراسری مناطق سردسیر دیم

In order to investigate stability of grain yield of 20 promising bread wheat lines beside Azar2 and Sardari as check, this research was conducted on RCBD design with 4 replications in cold agricultural research stations of Maragheh, Ghamlo, Ardabil, Zanjan and Urmieh for 4 years during 2005-2009. Different agronomic charectristics like earlyness, plant height, winter survival, TKW and finaly grain yield were measured. Analysis of variance showed that effect of environment and interaction effect of E | G were siginficant. The effect of Genotype was nonsignificant. Analisys of average yield of genotypes showed that No 12 had the highest grain yield (2154 kg/ha) comparing to Azar2 (2129 kg/ha) and Sardari (2023 kg/ha). Analisys of ranking of genotypes showed that No 12, 11, 18, 19 have the highest average rank of 6.9, 8.3, 8.7 and 8.7 respectively comparing to Azar2 and Sardari which are 9.1 and 12.7. According to STDEV of ranks it was found that No 11 could be the line with highest stability beside of high grain yield, so it can be a condidate for releasing variety to cold dryland regions.

کلیدواژه ها:

گندم نرم ، ژنوتیپ ها ، سازش پذیری ، پایداری ، عملکرد زراعی ، ویژگی های زراعی ، مناطق سرد