Author(s): Unab G. Bokhari, Mohammed O. Ghandorah, Hassan I. Sayed, Faisal Alyaeesh and Mahmoud Al- Noori
Article publication date: 1989-08-01
Vol. 7 No. 2 (yearly), pp. 77-89.
154
Keywords
transpiration, diffusive resistance, drought tolerance
Abstract
Five promising wheat strains (Triticum aestivum) were subjected to different water stress conditions to evaluate their drought tolerance mechanisms. A number of physiological parameters, namely transpiration, diffusive resistance, water potential and temperature differential were measured to determine if these could be used as indices of drought tolerance. Results showed correlations between the above parameters and the water stress levels as well as with the wheat strains. Rate of transpiration and diffusive resistance showed positive relationship with water regimes.