Improvement in wheat (Triticum aestivum L.) yield by manipulating seed rate and row spacing in Vehari zone
2010
Ali, M. (Adaptive Research Farm, Vehari (Pakistan)) | Ali, I. (Adaptive Research Farm, Vehari (Pakistan)) | Sattar, M. (Adaptive Research Farm, Vehari (Pakistan)) | Ali, M.A. (Directorate General Agriculture (Extension and Adaptive Research), Lahore (Pakistan))
Seed rate and row spacing in a given area have marked effects on wheat yield components. Field experiments were conducted at Adaptive Research Farm, Vehari for a period of three years from 2005-06 to 2007-08 to investigate the impact of various seed rates and row spacing on the yield of wheat cv. Uqaab-2000. Four levels of seed rate (125, 150, 175 and 200 kg per ha) and three row spacing (11.25, 15.00 and 22.50 cm) were tested in split plot design with seed rate in main plots and row spacing in sub plots. The results indicated that main effects of seed rate and row spacing affected number of tillers m-2, no. of grain per spike, 1000 grain weight, grain yield and harvest index significantly (p less than 0.05) and different seed rates did not affect straw yield significantly in 2007-08. Three years average results indicated that maximum grain yield (4.13 t per ha) was obtained where moderate seed rate of 150 kg per ha was used by planting wheat during second fortnight of Novem
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