GROWTH AND YIELD COMPARISONS OF FOUR COMMERCIAL WHEAT VARIETIES TO IRRIGATION FREQUENCIES
Nisar Ahmed Soomro*, Abdul Fatah Soomro**, Hamz Ali Samo* and
Muhammad Siddique Depar***
ABSTRACT
To examine the comparative response of wheat varieties to different irrigation regimes, four varieties namely, Kiran, Imdad-2005, TJ-83 and T.D-1 were supplied with 3 (IR ), 4 (IR ) and 5 (IR ) irrigations during the entire cropping season. The crop given 5 irrigations resulted in 88.71% germination, 82.77 cm plant height, 10.88 tillers plant , 266.74 tillers m , 59.41 grains spike , 60.50 g 1000-seed weight and 5862.25 kg grain yield ha . The crop irrigated four times, showed bit adverse effects on growth and yield traits over 5 irrigations with 84.77% germination, 79.16 cm plant height, 10.07 tillers plant , 254.91 tillers m , 51.91 grains spike , 57.60 g 1000-seed weight and 5230.75 kg grain yield ha ; while the plots given 3 irrigations showed lowest values for all the parameters. In varieties, Imdad-2005 maximizes its performance with 90.81% germination, 88.33 cm plant height, 10.29 tillers plant , 273.10 tillers m , 54.99 grains spike , 58.40 g 1000-seed weight and 5804.66 kg grain yield ha . However, varieties TJ-83, Kiran and T.D-1 ranked 2 , 3 and 4 in all the growth traits examined in this study. It was concluded that the differences in grain yield between the crop receiving five and four irrigations were statistically nonsignificant; which suggested that judicious application of four irrigations will be adequate to produce higher economic grain yield ha .
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