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Pakistan Journal of Biological Sciences
Year: 1999  |  Volume: 2  |  Issue: 4  |  Page No.: 1438 - 1440

Yield and yield components of durum wheat (Triticum durum Desf.) as influenced by water stress at various growth stages

Muhammad Iqbal, K. Ahmed, I. Ahmad, M. Sadiq and M.Y. Ashraf    

Abstract: The effect of water stress on yield and yield components of two durum wheat varieties was studied at various growth stages, i.e. at vegetative, flowering or grain-filling stage and no stress (control). The decrease in grain yield per plant was more pronounced (72.62 percent) associated with a reduced number of grains per ear (59.62 percent) and 1000-grain weight (31.98 percent) under water stress applied at flowering stage. Stress at grain-filling stage was less effective than at vegetative and flowering stage in both varieties. Variety D-88628 was less affected which showed its adaptability under water stress conditions.

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