گزارش نهایی بررسی اثر تاریخ کاشت بر عملکرد واجزا عملکرد در لاینهای امید بخش گندم نان

This two year experiment was carried out at Karaj experimental farm to study the effect of sowing date on grain yield and yield components of bread wheat promising lines C-75-2, M-75-13, M-75-10 and M-75-7 superior in multi-location experiments comparing with the local check cultivar. The experimental deign was RCBD in strip plot arrangement with three replicates allocating four wheat lines and four sowing dates (Oct. 12and 27, Nov. 11 and 26) to the vertical and horizontal plots, respectively. The results showed significantly different effects of genotype and sowing date on grain yield, biological yield and harvest index. The genotypes M-75-7 and M-75-10 were significantly superior to the other studied cultivars in grain and biological yield but the genotypes M-75-13 and M-75-10 were significantly superior in harvest index.The sowing date effect on grain yield was not significant but the biological yield of Nov. 11 was significantly higher than the other sowing dates while the harvest index for the second sowing date was superior.It was concluded that the genotype M-75-7 in 1st sowing date for grain yield, the genotype M-75-10 in 2nd and 3rd sowing date for biological yield and the genotypes M-75-10 and M-75-13 in 1st sowing date for harvest index were significantly different from other treatments

Keywords:

گندم , نان