Growth Characters OF Some Maize Hybrids as Affected by Inter and Intra Row Spacings

Abstract

To study performance of some maize hybrids under different inter and intra row spacing on flowering and growth characters. Two field experiments were carried out in extension field at Sherbin Center, Dakahlia District, Egypt during summer seasons of 2014 and 2015.The results exposed that S.C. 3084 hybrid chronicled the earlier number of days to 50% tasseling, highest number of green leaves/plant and highest values of total chlorophyll, thickness stems, tallest plants and ear height and lowest ear leaf area. However, S.C 2066 hybrids recorded the latest in number of days to 50% tasseling, the lowest number of green leaves/plant, the lowest values of total chlorophyll, stem diameter, plant height and ear height and the highest values of ear leaf area. Sown maize hybrids on width rows (70 cm) produced earlier plants to 50% tasseling, highest number of green leaves/plants, highest values of ear leaf area, thickness stems, tallest plants and ear height. Whereas, sown maize plants on narrow row width (60 cm) produced earlier plants to 50% silking and highest values of total chlorophyll. Sown maize hybrids at hills of 30 cm apart produced the earlier number of days to 50 % tasseling and 50 % silking, the highest values of ear leaf area and stem diameter. While, sown maize plants at hill spacing of 25 cm apart produced the highest number of green leaves/plant. However, sown maize hybrids at hills of 20 cm apart produced highest values of total chlorophyll and tallest plants. It can be concluded that sown S.C. 3084 hybrid on 60 cm row width at hill spacing of 20 cm apart exploited maize growth characters under the environmental conditions of Dakahlia Governorate, Egypt.