Comparison of Planting Date Levels on Yield and Yield Components in Zea mays

The purpose of this research was the investigation of different planting dates effect on seed yield and it’s components in maize hybrid single cross 704 an experiment was conducted in year 2009 using split plot design in the layout randomized complete block design with four replications. Planting date with three levels involving 26 Jun, 11 Jul and 27 Jul considered as main factor and arranged randomly in main plots. Analysis of variance showed that planting dates have significant differences for all traits excepting traits no. rows/ear and 1000-kernel weight. Mean comparison using Duncans’new multiple range test designed that 26 Jun is the best planting date for resulting maximum amount of seed yield and it’s components. The minimum seeds yield was produced in 27 Jul and leaf cutting in tasseling. In conclusion, delay in planting date resulted decreasing in seed yield and it’s components in maize hybrid single cross 704.