Identification of salt-resilient cotton genotypes using integrated morpho-physiological and biochemical markers at the seedling stage

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: Feb. 12, 2025

Soil salinity drastically hinders cotton productivity (Gossypium hirsutum), and fiber quality. The current study evaluated morpho-physiological biochemical responses of fifty genotypes under different levels (control, 12 dS/m, 17 dS/m) at the seedling stage. experiment was performed in a factorial complete randomized design with three replications. Significant genotype × treatment interactions were observed for most traits, including shoot length (SL), root (RL), fresh dry weight (FSW, DSW), (FRW, DRW), total soluble protein (TSP), proline content, antioxidant enzymes. Severe stress reduces (SL) (RL) along notable decreases biomass altered responses, increased activities indicating adaptation. Moreover, PCA Pearson's correlation analyses unveiled strong positive negative correlations among studied attributes while MGIDI assist determining salt-resilient applied treatments. best-performing control conditions G2, G8, G12, G7, G43, G30 showed resilience severe stress. effectively identified outstanding tolerance, such as G40, G26, across all levels. This research assists stress-tolerant using parameters is used precise method identifying accessions.

Language: Английский

Seawater-induced Salinity Enhances Antioxidant Capacity by Modulating Morpho-physiological and Biochemical Responses in Catharanthus roseus

Pertanika journal of tropical agricultural science, Journal Year: 2024, Volume and Issue: 47(4)

Published: Oct. 29, 2024

Salt stress impedes plant growth and development due to several factors, including the generation of cellular oxidative stressors. This study aimed assess impacts seawater-induced salinity on development, physio-biochemical responses, antioxidant capacity Catharanthus roseus grown in a variety seawater (4, 8, 12 dS/m) for varying durations (60, 90, 120 days). The experiment was laid out randomized complete block design with five replications. results demonstrated that C. successfully endured moderate (8 by maintaining height, number leaves, branches, relative water content, chlorophyll content minimum drop dry biomass (25%) time- dose-dependent approach. Furthermore, greater proline soluble sugar contents suggested possessed enhanced osmoprotective capabilities counteract osmotic caused salinity. Conversely, all indicators decreased significantly at high (12 dS/m). Increased levels enzyme activity catalase ascorbate peroxidase, phenol flavonoid, 2,2-diphenyl-1-picrylhydrazyl 2,2-azino-bis-3-ethylbenzothiazoline-6-sulphonic acid indicate coordinated function components regulating reactive oxygen species (ROS) low (4 salinities. In contrast, excessive led burst ROS, as seen elevated hydrogen peroxide, malondialdehyde, electrolyte leakage greatly reduced total matter (72%), especially days 120. ion studies plants subjected revealed most Na+ remained roots. K+, Ca2+, Mg2+ are deposited more firmly leaves than findings imply may tolerate owing its defense system osmolytes, which trigger enzymes maintain ionic balance.

Language: Английский