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Asian Journal of Plant Sciences
Year: 2003  |  Volume: 2  |  Issue: 1  |  Page No.: 127 - 131

Study of Photosynthetic Efficiency of Some Guar (Cyamopsis tetragonoloba L. Taub) Genotypes Grown under Different Water Regimes

Barkat Khanzada, M.Y. Ashraf, M. U. Shirazi, S. M. Alam, K. B. Samo and S. M. Mujtaba    

Abstract: The experiment was conducted in four cemented tanks of four guar genotypes i.e. S-807, Esser, Brooks and S-1183, under different water regimes (control, pre-post flowering stress, and terminal stress). The treatments were imposed at different stages of growth. Photosynthetic efficiency was determined by measuring leaf area, chlorophyll content and seed/yield. The findings show that water deficit reduced seed yield leaf area and chlorophyll content in all four guar genotypes. However, the genotypes S-807 and Esser had comparatively better performance than the other genotypes tested i.e. Brooks and S-1183.

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