Evaluation of Salinity Tolerance Potentials of Two Contrasting Soybean Genotypes Based on Physiological and Biochemical Responses.

ABSTRACT: Salinity stress is a major abiotic constraint limiting soybean (Glycine max L.) productivity in saline-alkali soils; however, the physiological and biochemical mechanisms underlying genotypic tolerance remain poorly understood. This study aimed to identify key traits that underpin salinity tolerance and can inform breeding and agronomic strategies to enhance soybean performance under saline conditions. Two contrasting soybean genotypes, YAKARTA and POCA, were exposed to 25, 50, 75, and 100 mM NaCl from the first to the fourth trifoliate stage (V1-V4) under controlled conditions for 30 days. YAKARTA maintained higher relative water content (75.51% vs. 66.97%), stomatal conductance (342 vs. 286 mmol H₂O m^-2 s^-1), proline (6.15 vs. 4.36 µmol g^-1

SUBMITTER: Sobh M 

PROVIDER: S-EPMC12787487 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature