Effect of NaCl salinity stress on seed germination and seedling growth of chick pea (Cicer arietinum L.).

摘要

Genotypic differences for tolerance to 4 salinity levels (0, 4, 8 and 12 dS/m) at different growth stages of 9 chickpea genotypes (CO 3, CO 4, PLS 5225-1, ICC 15620, ICC 42, ICC 2812, ICC 12237, ICC 4278 and ICC 15713) were evaluated. The germination percentage and seedling growth declined in all the genotypes with increasing salinity stress. Genotypes CO 3, CO 4 and ICC 4278 were more tolerant towards simulated salinity stress condition compared with the other genotypes. PLS 5225-1 was less tolerant to salinity stress, while ICC 2812 was the most susceptible. During any physiological stress, growth, metabolism and development activities were adversely affected and plants survived under adverse conditions through some adaptive mechanisms. The tolerant genotypes had higher proline contents as compared to susceptible genotypes.