Physio-morphological and molecular characterization of ethyl methanesulfonate-derived mutant population of <i>Gossypium herbaceum</i> L. cv. (Wagad) for drought tolerance.

ABSTRACT: This study investigates the response of ethyl methanesulfonate-derived twenty mutant lines of Gossypium herbaceum, along with the parent type Wagad cultivar, to drought stress. Physiological parameters, such as relative water content (RWC), net photosynthesis (A), stomatal conductance (g _s), transpiration rate (E), and water use efficiency (WUE), were examined. The mutant line mut_3219 exhibited superior drought tolerance, maintaining high RWC and water retention capacity, with minimal reductions in A, g _s, and E, leading to higher WUE than parent type and other mutant lines. Chlorophyll pigments declined in all the mutants under drought. However, mut_3219 retained higher levels than mut_4785. Anthocyanin

SUBMITTER: Sushma 

PROVIDER: S-EPMC11415324 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature