Effect of Saline Stress on Seed Germination of Three Leguminous species (Phaseolus vulgaris L., Glycine max L., and Vigna unguiculata L.)
Camara Brahima *
Laboratoire de Physiologie Végétale, Université Félix Houphouët-Boigny, UFR Biosciences, 22 BP 582 Abidjan 22, Côte d’Ivoire
Sanogo Souleymane
Laboratoire de Physiologie Végétale, Université Félix Houphouët-Boigny, UFR Biosciences, 22 BP 582 Abidjan 22, Côte d’Ivoire
Chérif Mamadou
Laboratoire de Physiologie Végétale, Université Félix Houphouët-Boigny, UFR Biosciences, 22 BP 582 Abidjan 22, Côte d’Ivoire
Tuo Seydou
Laboratoire de Physiologie Végétale, Université Félix Houphouët-Boigny, UFR Biosciences, 22 BP 582 Abidjan 22, Côte d’Ivoire
Koné Nahoua
Université Péléforo Gon Coulibaly, UFR Sciences Biologiques, BP 1328 Korhogo, Côte d’Ivoire
M’bo Kacou Antoine Alban
Laboratoire de Physiologie Végétale, Université Félix Houphouët-Boigny, UFR Biosciences, 22 BP 582 Abidjan 22, Côte d’Ivoire
Koné Daouda
Laboratoire de Physiologie Végétale, Université Félix Houphouët-Boigny, UFR Biosciences, 22 BP 582 Abidjan 22, Côte d’Ivoire
*Author to whom correspondence should be addressed.
Abstract
Aims: Examine the effect of salt stress on the germination stage on the physiological behaviour of three leguminous grown in Côte d’Ivoire.
Methodology: The study was carried out in the plant physiology laboratory of University Félix HOUPHOUËT-BOIGNY at a temperature of 25°C. The seeds were germinated in Petri plates containing concentrations of salt (NaCl) from 0 g L-1 to 15 g L-1.
Results: Significant decreases of the germination and the growth rate of leguminous species under salt stress was observed. However, this effect varies according to the intensities of stress and the species.
Conclusion: Soybean (Glycine max L.) showed high tolerance to salt stress with a germination rate of 40% in the most severe stress conditions (15 g L-1), while the cowpea (Vigna unguiculata L.) showed a low tolerance with a germination rate of 13 % under the same condition.
Keywords: Leguminous species, germination, NaCl