The experiment was carried out as a completely randomized block design in a split plot with four replications in 2011. The levels of main plot included five planting dates (15 May, 29 May, 3 June, 28 June and 12 July) and the levels of sup plot included three cultivars JK, Telar and Line 032. Time of flowering beginning and growth duration period of cultivars soybean is to be related to variation day length and temperature in planting dates. So, the experiment was carried out as randomized complete block design with four replications in the investigation farm in Dashtenaz-Sari in 2011. Planting dates 15 May, 29 May, 3 June, 28 June and 12 July as main plot and cultivars JK, Telar and Line 032 as sup plot. The results showed that maximum seed yield was obtained under 28 June. JK had the lowest and Telar had the highest seed yield with 5099 and 4640 kg ha-1, respectively. But, seed yield was not affected by the interaction between cultivar and planting date. Therefore, suitable planting dates increased seed yield at cultivar under the sprinkler irrigation indicating that delay or no delay ration to 28 June reduces seed yield. Generally, delaying in planting dates after 28 June had severely decreased seed yield.
کلید واژگان :Cultivars, Planting date, Soybean, Pheonologic.
ارزش ریالی : 300000 ریال
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