Investigation of Salt Tolerant Genotypes in Edible Cluster Bean


Akcura S.

KSU TARIM VE DOGA DERGISI-KSU JOURNAL OF AGRICULTURE AND NATURE, vol.24, no.1, pp.99-107, 2021 (Journal Indexed in ESCI) identifier

  • Publication Type: Article / Article
  • Volume: 24 Issue: 1
  • Publication Date: 2021
  • Doi Number: 10.18016/ksutarimdoga.vi.727318
  • Title of Journal : KSU TARIM VE DOGA DERGISI-KSU JOURNAL OF AGRICULTURE AND NATURE
  • Page Numbers: pp.99-107

Abstract

This study was conducted to determine salinity tolerances at six salt concentrations (control, 6, 8, 10, 12, and 15 dS m(-1)) in the germination period of 24 vegetable type cluster bean (Cyamopsis tetragonoloba [L.] Taub.) genotypes and to select tolerant genotypes. The dry seedling weight of the gum beans was significantly affected by salt applications. Salt application, genotype, salt application x genotype interaction was significant (P<0.01). Regression analysis and GGE biplot analysis (salt application = environment) were performed to select genotypes for different salt concentrations. GGE biplot analysis explained 97% of the total variation. Regression graphs created for each genotype and the positions of genotypes in GGE biplot were compatible with each other. G19, G11, and G4 genotypes, which have a high weight in the control application and whose weight varies less with the salt applications, have been identified as the most saline resistant genotypes with positive PC1 and PC2 values. PC2 values of G12 and G20 genotypes, which have high dry weight in control application but have the highest weight reduction rate with salt applications, were also low. G21 and G22 genotypes, which have a small weight in the control application and are profoundly affected by salt applications, have been identified as the most susceptible to salinity. In the GGE biplot method, the salinity threshold value was determined as 10 dS m(-1) according to the average axis used for genotype selection. Using regression analysis and GGE biplot analysis together with researches to determine salinity resistant genotypes will enable researchers to make more successful selections.