Effects of Phytohormones on Proline Content and Antioxidant Enzymes of Various Wheat Cultivars Under Salinity Stress

Investigation of seed germination indices for early selection of salinity tolerant genotypes: a case study in wheat

“…We observed that Zagros, the most tolerant genotype in the present report, had produced the highest amount of Rubisco, peroxidase and proline, and susceptible genotype (Gascogen) had accumulated the lowest amounts at 7 dS m -1 (Aflaki Manjili et al, 2012). In addition, we reported that Zagros contained more chlorophyll, showed more membrane stability, and had the least chlorophyll fluorescence.…”

“…Previously, we had investigated the effects of salinity on mature wheat, where we recorded some physiological parameters for the most tolerant and susceptible genotypes to the stress (Aflaki Manjili et al, 2012;Pazuki et al, 2013). In the present research, we have studied effects of the same levels of salinity on the previously used three wheat genotypes affected by two levels of salinity in comparison with distilled water (control).…”

“…In addition, as a limiting factor, salinity stress can adversely affect normal plant establishment (Houle et al, 2001;Pessarakli et al, 2015), reduce plant growth and development (Panuccio et al, 2014;Izadi et al, 2014;Pessarakli, 2015;Pakar et al, 2016), stunt plant growth and survival (Parida et al, 2005;Akhzari et al, 2016) in different ways, e.g., photosynthesis, nutritional condition, metabolism, drought stress, oxidative stress, membrane damage, and limited cell division (Aflaki Manjili et al, 2012;Houle et al, 2001;Panuccio et al, 2014). However, osmotic and ionic toxicity are more harmful than aforementioned factors (Panuccio et al, 2014).…”

Plant Responses under Environmental Stress Conditions

“…147 In some wheat cultivars, under long time exposure to salinity, some anti-oxidant enzymes such as peroxidase and superoxide dismutase increased, conversely proline content decreased. 148 In this study, by applying foliage gibberllic acid wheat growth was enhanced. 148 In a comparison between wheat and maize cultivars under salinity stress condition, higher amounts of proline, peroxidase activity, and protein content in wheat cultivars were observed.…”

“…148 In this study, by applying foliage gibberllic acid wheat growth was enhanced. 148 In a comparison between wheat and maize cultivars under salinity stress condition, higher amounts of proline, peroxidase activity, and protein content in wheat cultivars were observed. 149 Higher amounts of K+ and K+/Na+ ratios in wheat compared to maize resulted in better ion homeostasis in wheat that caused this species to have a higher salinity tolerance than maize.…”