Saadallah, K. and Drevon, J.J. and Hajji, M. and Abdelly, C. (2001) Genotypic variability for tolerance to salinity of N2 -fixing common bean (Phaseolus vulgaris). Agronomie, 21 (6-7). pp. 675-682.
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Abstract
The common bean (Phaseolus vulgaris L.) is often subject to various environmental constraints in the soil. One of these constraints is salinity which is a major limitation for grain legumes yield, especially when the plant growth depends upon N2 fixation. In order to confirm the variability of the response to moderate salinity, and identify the morphological and physiological criteria associated with tolerance, 9 common bean lines (BAT477, Coco blanc, DOR585, ABA16, NAG310, Flamingo, BRB17, Candide and Striker) were inoculated with Rhizobium tropici CIAT899, and grown in a glasshouse with or without 25 mM NaCl on sterilized sand. A genotypic variation in tolerance to salt was found: ABA16 and BRB17 were the most sensitive lines whereas BAT477 and Flamingo were the most tolerant. The estimated parameters of growth and symbiotic nitrogen fixation showed that (i) some lines which exhibited vigorous growth under the control treatment were greatly affected by salt treatment, (ii) the relative tolerance of some lines to salt seems to depend on the ability to maintain an adequate leaf area and to develop an abundant and efficient nodular system.
| Item Type: | Article |
|---|---|
| Additional Information: | This work was supported by the FYSAME project No. ERBIC18C960081 of the INCO DC programme of the European Union and the PRC project of the Secretariat of State of Scientific Research and Technology. |
| Uncontrolled Keywords: | Phaseolus vulgaris, salinity, N2 fixation, genotypic variability |
| Author Affiliation: | INRST, Laboratoire d'Adaptation et d'Amélioration des Plantes, Nutrition Minérale, BP 95, Hammam-Lif 2050, Tunisia |
| Subjects: | Crop Improvement |
| Divisions: | Common Bean |
| Depositing User: | Mr Siva Shankar |
| Date Deposited: | 16 Aug 2013 03:57 |
| Last Modified: | 16 Aug 2013 03:57 |
| Official URL: | http://dx.doi.org/10.1051/agro:2001160 |
| URI: | http://eprints.icrisat.ac.in/id/eprint/11449 |
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