Green Global
Foundation   Journal
...an emerging window for scientific research and publication across the globe

EFFECT OF SUPPLEMENTAL IRRIGATION ON THE PERFORMANCE OF TRANSPLANTED AMAN RICE VARIETIES AT DINAJPUR REGION (Pages : 7 - 16)

An experiment was carried out to evaluate the effect of supplemental irrigation on the performance of T. aman rice varieties at the Crop Physiology and Ecology Research Field, Hajee Mohammad Danesh Science and Technology University (HSTU), Dinajpur during the period from July to November 2018. The experiment was laid out in a split-plot design with three replications. The experiment comprised two sets of treatments: two water regimes (i.e., Rainfed condition and supplemental irrigation condition) were assigned in main plots and four rice varieties (i.e., BRRI dhan56, BRRI dhan72, BRRI dhan71 and BRRI dhan62) were assigned in sub-plot. Half of the plots were exposed under rainfed conditions and the remaining half plots were irrigated at 60 and 75 days after transplanting. Data were collected on plant height, number of leaves per hill, number of tillers per hill, SPAD value on different days after transplanting, leaf area, and number of filled and unfilled grains per panicle, panicle length, 1000-grain weight, grain and biological yields. All the growth and yield contributing characters and yield of all T. aman rice were increased due to the application of supplemental irrigation over rainfed conditions. Among the varieties, significantly higher plant height, leaf area, leaf dry weight, tillers per hill, filled spikelets per panicle and panicle length due to supplemental irrigation contributed to higher yield in BRRI dhan56 and BRRI dhan71.Download