Maize Hybrids Yield as Affected by Inter and Intra Row Spacing

To study the effect of different, inter and intra-row on some new maize hybrids under on yield and its components. Two field experiments were carried out during summer seasons of 2014 and 2015. The results showed that highest ear length, ear diameter, grains weight/ear, shelling percentage, 100-grain weight and grain yield/fed. S.C 2055 hybrid was recorded the greatest value number of rows/ear. S.C 2066 hybrids recorded the highest number grains/row, the lowest ear length, ear diameter, grains weight/ear, shelling percentage and 100-grain weight. Sown maize plants in width rows (70 cm) produced the highest number of ear/plant, number of rows/ear and number grains/row and ear length, ear diameter, grains weight/ear, shelling percentage and 100-grain weight. Sown maize plants in hills 30 cm apart produced the greatest numbers of ears/plant and thick ears, highest grains weight/ear, shelling percentage and 100- grain weight. However, sown maize plants at hill spacing of 25 cm apart produced tallest ears. It could be concluded that sown S.C. 3084 hybrid at 60 cm row width and hill spacing of 20 cm apart maximized maize productivity under the environmental conditions of Dakahlia Governorate, Egypt.