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The Effect of Different Sowing Dates on Growing Periods, Yield and Yield Components of Some Bread Wheat (Triticum aestivum L.) Cultivars Grown in the East-Mediterranean Region of Turkey

Keywords: Wheat , sowing date , grain yield , yield components , growing period

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The aim of this research was to determine the effect of different sowing dates on growing period, yield and some yield components of three bread wheat (Triticum aestivum L.) cultivars grown Kahramanmaras, in the East-Mediterranean region of Turkey. Experiment was carried out in a split-plot on randomized complete block design with four replications, between the year 1997-1999. Seven planting dates were planned with the first on 9th October and the others followed at about 15 day intervals. Two cultivars (Seri-82, Dogankent-1 and Panda) were the main plots and 7 different sowing dates were the subplots. According to the results of two years, sowing dates had significant effect on vegetative period (VP), grain filling period (GFP), days to maturity (DM), head number m-2 (HN m-2), 1000-grain weight (1000-GW) and grain yield (GY). Grain yields obtained from the first five sowing dates were not significantly different. Consequently, the period from first week of November to middle of December could be concluded as optimum sowing period for maximum grain yield for the region.


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