بررسی اثرات تراکم و آرایش کاشت بر عملکرد و اجزای عملکرد ذرت هیبرید کارون

Abstract: To evaluate the effects of plant density and planting pattern on corn's yield and yield components, an experiment was conducted on the basis of factorial in completely randomized design. The first factor was plant density divided in 4 levels (7,8,9 and 10 plants per squaremeter) and second factor was planting pattern in 4 levels ( planting one row in the bottom of the row, planting two rows on the bottom of the row, a row on the stack and two rows on the stack) in 3 replications. Grain yield, biological yield, harvest index, number of kernels per row, seed weight, plant height, leaf area index and number of kernel rows have been calculated. The results showed that plant density and planting pattern ,affected the number of kernels per row, seed weight, grain yield, biological yield, plant height, harvest index, leaf area index (P≤ 0.01) and number of kernel rows (P≤ 0.05). Interaction of plant density and planting pattern was significant on biological yield, harvest index, grain weight, number of kernels per row and the number of kernel rows (P≤ 0.01) and the yield of grain (P≤ 0.05). The highest yield (11826 Kg per hectare) obtained on 8 plants per square meter and two rows on the bottom of the row.