اثر محلول‌پاشی متانول و برخی از عناصر ریز مغذی و پرمصرف بر بنیه‌ی بذر حاصل از پایه‌های مادری هیبرید 704 ذرت (Zea mays)

In order to investigate the seed vigor of corn hybrid 704 after maternal plant foliar application with methanol, some micro and macro-nutrients an experiment was conducted in a factorial form based on RCBD with three replications during growing seasons of 2010-2011. Treatments were four growth stages (the 8-10 leaves, the tasseling, the seed-filling, all the stages), seven levels of foliar application (Methanol, Zn, B, Mg, N, Mn, a mixture of all combinations) and control. The analysis of the data showed a significant effect of the combination type of foliar application in different stages on the germination percent, mean daily germination, germination speed, seedling vigor index, radical length, plumule length and seedling dry weight. The detailed results of the study showed that foliar application with N, Mg, Zn, Mn and B in grain-filling stage, foliar application with N, Mg and Mn in tasseling and foliar application with N, Mg and B in all stages had the highest germination percent (100%) and mean daily germination (14.29%). Also, Mg-foliar application in grain-filling and all stages, B-foliar application in grain-filling stage had the highest germination seed (12.33). In addition, Mg-foliar application in grain-filling stage had the vigor index, radical length, plumule length and seedling dry weight.