The Eeffects of planting row widths and planting density on yield and yield components of a single cross corn (cv. sc7SC 7) in Miyaneh region, Iran

In order to study the Eeffects of planting row plant density (row intervals and widths and planting distances) density on the yield and yield components of ina single cross corn named 7 were studied in Mianeh region, Azarbayejan-e-Sharqi East Azarbayejan Province, Iran. The experiment was a factorial based on a randomized block design with four replications and was carried out in aAgricultural rResearch sStation of Islamic Azad University, at Maiyaneh Branch, in, performed experiments during culture season at 005. Factors of the experiment consisted of three row intrevals of 5, 60 and 75 cm and three poulations of, in the personal farm in Miyaneh, in form of factorial design based on entire random districts on four replication. That the factor of planting rows widths was included 5, 60 and 75 cm and the factor of planting density was 50000, 65000 and 80000 plants per hectare. At the occasion of After physiological maturity, when the moisture content of seeds reached to %, the yield was harvested. Yield and yield components such as weight of control without regarding to effect of edge as compared with measurement of yield, it was analyzed and was studied by common methods that the yield had % moisture and yield components was consist of 000 seedskernel weight, stem weight, corn ear weight, biological weight (TDW), harvest index, number of seeds and ears perin each row row and number ofwere meatured. row in ear corn. The According to results of variance analysis showed essential differences between row intervals indicating that by from variance analysis with inincreasing planting row widthdistances, weight of 000 kernelseeds, stem weight, biological weight, number of seeds in each row were significantly increased at at 5% of probability level;, indicated significant increase, butbut other parametrs characters were not affected by this study was not influenced by planting row intervalswidth. Increasing plant poulation was accompayning with a significant shift and also with increasing density of planting, the weight of of whole plantbiomas, weight, harvest index and yield (P < components at 5%), but level showed significant increase, and in turn weight of 000 kernelseeds, stem weight, corn ear weight and number of seeds in each row showed revealed significantly decrees.decreasesd. Row intervals of 60 cm in combination with plant poulation of 65000 /ha produced the highest yield And also according to this results, treatment with planting row width of 60 cm and planting density with 65000 bushes per hectare indicate the most product (080 kg/ha), and treatment with planting row width of 75 cm row interval with and planting density of 50000 plant poulation produced the lowest yield bushes per hectare allocated least of product to themselres (85 kg/ha) among the treatments.. Also number of row in ear corn influenced by genetic factors rather than environmental and management factors.