نوع مقاله : پژوهشی
نویسندگان
1 دانشجوی کارشناسی ارشد گروه زراعت و اصلاح نباتات واحد تبریز دانشگاه آزاد اسلامی
2 استادیار گروه زراعت و اصلاح نباتات واحد تبریز دانشگاه آزاد اسلامی
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
77
23
ABSTRACT To investigate the effect of some micro-macronutrients as foliar application on some morphological and physiological characteristics of maize cv. SC704 in different growth stages an experiment was conducted in factorial based on randomized complete block design with three replications at the Research Station of Saatlo, Urmia, north-western Iran during growing seasons of 2013-2014. Treatments were five levels of foliar application include (N (Urea), Mg (MgSO4.H2O), Fe (FeSO4.H2O), Sulfur WP, and control) and three growth stages including of the 8-10 leaves stage, the tasseling stage and the seed-filling stage. Concentrations of foliar applications were determined in ratios of 5 to 1000 for Mg, Fe and S and 5 to 100 for N. A significant effect of different growth stages on ear height, number of row on ear, number of seed on row, 100-grain weight and total seed weight was found. Also, nutrients foliar application had a significant effect on ear height, number of seed on row, 100-grain weight and total seed weigh. In all of traits, treatment of 8-10 leaves stage had the highest and nitrogen foliar application in all treatments but seed on row number had the highest value. Application of treatments on 8-10 leaves stage was more than filling stage had 42.46% ear height, 5.98% number row per ear, 45% number of seed per row, 39.42% 100-grain weight and 2.84% total seed weight on ear. N-foliar application increased 45.71% ear height, 29.1 % 100- grain weight and 33.61 % total seed weight on ear compared to control. Besides, Fe foliar application had the highest number of seed on row comparing to control (43.39%). On the whole, 5% N foliar application and 5/1000 Fe foliar application improved the some of morpho-physiological characteristics of maize. This indicates that spraying while also providing balanced nutrition, is also economically affordable.
کلیدواژهها [English]