Abstract:
In this experiment irrigation scheduling was done on the basis of cumulative pan evaporation (CPE). Wheat grown at seed rates of 100, 125 and 150 kg ha-1 was irrigated using IW:CPE ratios of 0.70, 0.90, 1.10 and 1.30. Data on agronomic traits like plant height, tillers m-2, grains spike-1, 1000-grain weight, grain yield, straw yield, harvest index and water use efficiency were collected. Statistical analysis suggested that wheat was quite responsive to increase in irrigation as well as seed rate. Increase in both treatments displayed an increase in plant population m-2, which was indicated in terms of tillers m-2. In other words highest irrigation and seed rate produced greater plant population m-2 and thus, the competition among plants was increased. Result was the reduction in important yield attributes like grains spike-1 and 1000-grain weight, which ultimately produced less grain yield at higher levels of experimental treatments. It was inferred that to obtain the maximum production of wheat it should be sown at the rate of 125 kg ha-1 and should be irrigated at IW:CPE ratio of 0.9.
Naeem Mahmood, Buland Akhtar and Muhammad Saleem , 2002. Scheduling Irrigation in Wheat Grown at Different Seed Rates. Asian Journal of Plant Sciences, 1: 136-139.
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