بررسی تاثیر پرایم مضاعف ویو، هالوهاردنینگ پرایمینگ و سطوح تقسیط نیتروژن بر اجزای عملکرد وبرخی صفات فیزیولوژیک ذرت زودرس

In order to study of the effect of wave-halohardening priming at different levels of nitrogen on yield component and some physiological characteristics of early corn (Zea mays L.) an experiment was carried out as factorial based on randomized complete block design (RCBD) with three replication. Factors included halohardening at two levels ( prime in -6 bar and non-prim), wave priming at two levels ( prime for 2 minutes at 42 kHz and not prime) and nitrogen at three levels of dividing(post emergence, 1 week before flowering and filling period). Results showed that interaction between halohardening*wave priming and wave priming* nitrogen and halohardening* wave* nitrogen significantly affected number of seed per row and ear length traits. Interaction between halohardening*wave priming and level split of nitrogen at a week before flowering, had a highest effect on rows per ear but, only after germination had highest on ear length and number of seed per row. Also Results showed that amount of chlorophil a and b in all levels of treatment was a significant. . As it is shown in fig of interaction of halohardening*wave priming and nitrogen split, the highest value of chlorophyll a was found for halohardening *wave prim treatment and application of fertilizer at one week before initiation of filling and highest halohardening*wave priming was obtained and fertilizer application after emergence.