Effects of long-term sodium chloride salinity (100 and 200 mM NaCl; ECe = 6.85 12.3 dS m-1) were studied in tolerant (Kharchia 65, KRL 19) susceptible (HD 2009, HD 2687) wheat genotypes. NaCl decreased relative water content (RWC), chlorophyll (Chl), membrane stability index (MSI) ascorbic acid (AA) content, increased the contents hydrogen peroxide, thiobarbituric reactive substances (TBARS), activities superoxide dismutase (SOD), ascorbate peroxidase (APOX) glutathione reductase (GR)....

Abstract An experiment was conducted with three wheat genotypes differing in their sensitivity to moisture and/or temperature stress study the relationship of chloroplast antioxidant system tolerance. Both and increased glutathione reductase peroxidase decreased membrane stab‐iltty, chlorophyll content stability index all genotypes. Under stress. DL 153–2 showed highest stabihty index, content, activity activity. However, under elevated conditions, HD 2285, a lesser extent 153–2, higher...

Waterlogging is a serious problem, which affects crop growth and yield in low lying rainfed areas. The main cause of damage under waterlogging oxygen deprivation, affect nutrient water uptake, so the plants show wilting even when surrounded by excess water. Lack shift energy metabolism from aerobic mode to anaerobic mode. Plants adapted waterlogged conditions, have mechanisms cope with this stress such as aerenchyma formation, increased availability soluble sugars, greater activity...

An experiment was conducted with three wheat (Triticum aestivum L.) genotypes C 306, HD 2285 and 2329 (differently susceptible to water temperature stress) study the extent of oxidative injury activities antioxidant enzymes in relation heat stress induced by manipulating dates sowing. Increase late sowing significantly decreased leaf relative content (RWC), ascorbic acid content, increased H2O2 lipid peroxidation all at 8 23 d after anthesis. Temperature tolerant closely followed were...

The role of plant antioxidant systems in stress tolerance was studied leaves three contrasting wheat genotypes. Drought imposed at two different stages after anthesis resulted an increase H2O2 accumulation and lipid peroxidation decrease ascorbic acid content. Antioxidant enzymes like superoxide dismutase, ascorbate peroxidase catalase significantly increased under water stress. tolerant genotype C 306 which had highest activity content also showed lowest (malondialdehyde content) comparison...

An experiment was conducted on five wheat ( Triticum aestivum L.) cultivars, C 306, PBW 175 (tolerant to water stress), DL 153‐2 (moderately tolerant HD 2428 and 2329 (recommended for irrigated conditions, susceptible under pot culture conditions study the effect of stress oxidative injury antioxidant activity. Water significantly decreased relative content (RWC), ascorbic acid membrane stability, increased hydrogen peroxide malondialdehyde content, a measure lipid peroxidation, activities...

Abscisic acid (ABA) and salicylic (SA) were sprayed on leaves of wheat genotypes C 306 Hira at 25 40 d after sowing under moderate water stress (-0.8 MPa) imposed by adding PEG-6000 in nutrient solution. ABA SA increased the activities superoxide dismutase, ascorbate peroxidase, glutathione reductase, catalase comparison to unsprayed control plants. Both treatments decreased contents hydrogen peroxide thiobarbituric reactive substances, a measure lipid peroxidation, compared The beneficial...

Two wheat genotypes, C 306 (tolerant) and PBW 343 (susceptible to temperature stress) were grown in growth chambers the phytotron facility of IARI, New Delhi. The plants maintained at 18/23°C (control) 25/35°C (temperature night/day temperatures after maximum tillering. Water potential was significantly reduced anthesis, 7 15 days anthesis both genotypes heat stress treatment, a greater reduction recorded 343. membrane stability index also lower treatment vegetative stage, observed than 306....

The objective of this study was to examine the role antioxidant enzymes in waterlogging tolerance pigeonpea (Cajanus cajan L. Halls) genotypes ICP 301 (tolerant) and Pusa 207 (susceptible). Waterlogging resulted visible yellowing senescence leaves, decrease leaf area, dry matter, relative water content chlorophyll membrane stability index roots leaves. decline all parameters greater than 301. Oxidative stress form superoxide radical, hydrogen peroxide thiobarbituric acid reactive substances...

An experiment was conducted to investigate the physiological and biochemical responses of two hexaploids viz., C 306 (water stress tolerant) Hira susceptible), tetraploids, HW 24 ( Triticum dicoccum ) A 9‐30‐1 durum wheat genotypes water under pot culture condition. Water imposed for a uniform period 10 days at 50, 60 70 after sowing (DAS) observations were recorded 60, 80 DAS. Total dry matter plant height harvest. caused decline in relative content (RWC), chlorophyll carotenoid content,...

Mungbean is an ecologically important food grain legume crop. Susceptibility towards salinity stress has limited the productivity of mungbean. The effect salt on two popular mungbean varieties ("Pusa vishal" and "Pusa ratna") been compared during summer spring seasons. experiment was carried out at levels (50 mM 75 NaCl). Significant variations adaptability among stressed non-stressed plants were observed in both varieties. early vegetative stage found more resistant to as late reproductive...