Document Type : Original Article
Authors
1
Department of Agronomy, Faculty of Agriculture, Ferdowsi University of Mashhad
2
Department of Agrotechnology, Ferdowsi University of Mashhad
3
Faculty of Agriculture, Ferdowsi University of Mashhad
4
Ferdowsi University of Mashhad
10.22067/ijpr.2023.79906.1049
Abstract
In order to identify and assess of salinity tolerant chickpea genotypes, 206 genotypes were allocated as treatment of a randomized complete design with three replications during seedling stage at salinity level of 12 dS m-1 NaCl. The results showed that 31 genotypes have a survival rate of 76-100% which 10 genotypes survival rate of 100%. Plant height, biomass, and number of lateral branches per plant decreased as survival rate decreased. Significant increase in Na+ concentration was only found in survival range of 0-25%. The results of correlation showed that survival rat, Plant height and number of lateral branches per plant, biomass, Plant height difference and k+ concentration significant and showed positive correlation. Based on factor analysis, three factors were selected that in total 79% of the total variation was explained. The first and second factors were explained high percent of variation that including survival rate and plant height and number of lateral branches per plant, biomass, Plant height difference and Na+ concentration. Genotypes MCC1782, MCC197 ,MCC1703 ,MCC1568, MCC1573, MCC1737, MCC1209, MCC1516, MCC1493, MCC1832, MCC1957, MCC1721, MCC2016, MCC1704, MCC1641, MCC1815, MCC1775,MCC178, MCC1754, MCC1627, MCC1716, MCC1918, MCC1827 ,were selected as the superior genotype. According to the result of cluster analysis, the genotypes were classified in four clusters. The genotypes of the third and fourth clusters had a high average genotype compared to other clusters with the investigated traits. Due to variation in salt tolerance among chickpea genotype, it can be used in breeding programs to improve salt tolerance of chickpeas coltivars
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