Salt tolerance analysis of chickpea,faba bean and durum wheat varieties: II. Durum wheat |
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| Affiliation: | 1. INRA, Unité de Recherche,Environnement et Grandes Cultures, 78850 Thivernal-Grignon, France;2. Sub-department Water Resources, Wageningen University, van Limburg Stirumweg 2, 6861 WL Oosterbeek, The Netherlands;3. Istituto Agronomico Mediterraneo, 70010 Valenzano (Bari) Italy;4. Istituto Sperimentale Agronomico, 70125 Bari, Italy;5. ICARDA, P.B. 5466, Aleppo, Syria;1. Department of Civil and Environmental Engineering, College of Engineering, Hanyang University, Seoul 133-791, Republic of Korea;2. Water Desalination and Reuse Center, Division of Biological and Environmental Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia;3. International Center for Agricultural Research in the Dry Areas (ICARDA), Cairo, Egypt;4. Water Resources and Remote Sensing Laboratory, Department of Water Resources, Graduate School of Water Resources, Sungkyunkwan University, Suwon 440-746, Republic of Korea;1. Food Quality and Design, Wageningen University, P.O. Box 17, 6700 AA Wageningen, The Netherlands;2. Food and Biobased Research, Consumer Science & Intelligent Systems, Wageningen University and Research, P.O. Box 17, 6700 AA Wageningen, The Netherlands;3. Division of Human Nutrition, Wageningen University, P.O. Box 8129, 6700 EV Wageningen, The Netherlands |
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| Abstract: | Seven varieties of durum wheat (Triticum turgidum), provided by ICARDA, were tested in a greenhouse experiment for their salt tolerance. Afterwards two varieties, differing in salt tolerance, were irrigated with waters of three different salinity levels in a lysimeter experiment to analyse their salt tolerance.The characteristics of the salt tolerant variety compared to the salt sensitive variety are:- -a shorter growing season and earlier senescence;
- -a higher pre-dawn leaf water potential;
- -a stronger osmotic adjustment;
- -a better maintenance of the number of productive stems per plant.
Salt tolerance of durum wheat corresponds with drought tolerance because the tolerance is caused by earlier senescence and stronger osmotic adjustment, both reducing the transpiration of the plant. |
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