Morphological, Phonological and Yield Attributes of Maize (Zea mays L.) as Affected by Different Sowing Methods Intra-Row Spacing and Varieties at Gash Scheme

To check the performance of maize under various sowing methods, intra-row spacing and varieties, two experiments were conducted at Kassala Research Station Experimental farm atTakroof during two successive 2015and 2016seasons. The experiment was carried out in RCBD, with three replications, arranged in split-split trail, with the sowing methods at the main plot, the intra-row spacing at the sub plot and the varieties at the sub-sub plot. Three sowing Methods (SM) were (Ridge, Flat and Local Framers' Methods) and three intra-row spacing (20, 30, and 40cm) and three maize varieties(Hudeiba-1,Hudeiba-2 and variety113). Results of morphological and phonological attributes showed that, ridge sowing method significantly affected population density (42.0) and plant height (177.5cm).While flat SM significantly affected 50% Silking (57.6 days). Also, variety 113 significantly affected population density (39.9) and leaf area index (1.99). While intra-row spacing of 20 cm affected population density(48.1,) gave seed yield of (1732 kg/ha). Also,40 cm significantly affected plant height (191.2cm). 30cm significantly affected 50% tasselling of (59.9 days) and 50% silking of (63.8 days). But 30 cm affected leaf area index (2.06 and 1.92). Accordingly, Variety113, grown on ridge and with intra-row spacing of 30 cm gave the highest maize grain yield in Gash Scheme.