Abstract
The experiment was conducted by growing five wheat genotypes (Pato, LU-26S, Pb-85, Tchere and Pak-81) in round plastic tubs containing vermiculite-gravel (1:1 by volume). There were four treatments; control (non-saline, aerobic), hypoxic, saline (100 mol m.'3 NaCl - 5 mot m~3 CaCt2) and saline-hypoxic arranged according to completely
randomised design with five replications. Plants were harvested after six weeks of stress. Salinity reduced the vegetative growth significantly and the combined stress of salinity and hypoxia caused further reduction. Tchere and Pb-85 proved better while Pato was the most sensitive as compared to other genotypes. Salinity alone or in combination with
hypoxia increased Na+ and decreased Kf concentration in the expressed sap of the youngest fully expanded or the oldest leaves and this effect was more pronounced in
saline+hypoxia treatment. Tchere had the lowest Na+ cone, in leaf sap followed by Pb-85 while the latter maintained higher K+ cone. The oldest leaves accumulated more Na* and less K' while the youngest fully expanded leaves showed an opposite trend.
J. Akhtar, R.H. Qureshid, M. Aslam, S. Nawaz. (1998) PERFORMANCE OF SELECTED WHEAT GENOTYPES GROWN UNDER SALINE AND HYPOXIC ENVIRONMENT, The Journal Soil & Environment , Volume 15, Issue (3-4).
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