Response to soil salinity of two chickpea varieties differing in drought tolerance |
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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, 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 Molecular Medicine, Aarhus University Hospital, Aarhus, Denmark;5. Department of Histology, Aarhus University Hospital, Aarhus, Denmark;7. Department of Urology, Aarhus University Hospital, Aarhus, Denmark;2. Department of Clinical Medicine, Aarhus University, Aarhus, Denmark;4. Department of Biomedicine, Aarhus University, Aarhus, Denmark;3. Exiqon A/S, Vedbæk, Denmark;6. Department of Urology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark;1. Instituto Valenciano de Investigaciones Agrarias – IVIA (GV), Centro para el Desarrollo de la Agricultura Sostenible – CDAS, Crta. Moncada-Nàquera Km 4.5, 46113 Moncada, València, Spain;2. Centro de Investigaciones sobre Desertificación-CIDE (CSIC, UVEG, GV), Crta. Moncada-Nàquera Km 4.5, 46113 Moncada, València, Spain;1. Department of Chemistry, Faculty of Science, Kafrelsheikh University, Kafr El-Sheikh 33516, Egypt;2. Chemistry Department, Faculty of Science, Taif University, Taif, Saudi Arabia;3. Departmentof Chemistry, Faculty of Science, South Valley University, Egypt;4. Faculty of Agriculture, Department of Biochemistry, Cairo University, Cairo, Egypt;5. Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia;3. Department of Biomedicine, Aarhus University, DK-8000 Aarhus C, Denmark and;4. Fundación Pública Galega de Medicina Xenómica-Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), and Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), 15706 Santiago de Compostela, Spain;1. State Key Laboratory of Urban Water Energy and Environment, Harbin Institute of Technology (SKLUWRE, HIT), Harbin 150090, PR China;2. The Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hong Kong;3. Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, PR China;4. Peng Wei Petrochemical Co., LTD, Longqiao Industrial Park, Fuling District, Chongqing 408121, PR China |
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| Abstract: | Two chickpea varieties, differing in drought tolerance, were grown in lysimeters filled with clay, and were irrigated with waters of three different salinity levels. Under non-saline conditions, both varieties, slightly differing in pre-dawn leaf water potential during the growth period, gave almost the same yield.Salinity had a slight effect on the leaf water potential and the osmotic adjustment. Both were slightly higher for the drought tolerant variety, but much lower in comparison with sugar beet, tomato and lentil. The drought tolerant variety showed an earlier senescence in leaf and dry matter development and flowering which were accelerated by salinity. The drought sensitive variety, however, showed under slightly saline conditions (ECe=2.5 dS/m) from 135 days after sowing onwards a different behaviour by the growth of new leaves and flowers, a delay in senescence, leading to the same yield as under non-saline conditions. Under saline conditions (ECe=3.8 dS/m) the drought sensitive variety showed the same yield reduction of about 70% as the drought tolerant variety. |
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