of some antioxidant enzymes Effect of seed coating on activity under salt stress conditions in Maize (Zea mays L.)

حایری خیاوی, هادی and فرزانه, سلیم and خماری, سعید and سیدشریفی, رئوف and خدادای, شهرام of some antioxidant enzymes Effect of seed coating on activity under salt stress conditions in Maize (Zea mays L.). In: 2nd International and 6th National Iranian Congress on Organic vs. Conventional Agriculture, August 2019, Ardabil, Iran.

Text C-00312-AC-2.pdf Download (1MB)

Abstract

Use of biofertilizers such as humic acid as growth stimulants (seaweed extract and amino acid) to reduce damage caused by salinity and drought stress in plants and improve physiological factors such as antioxidant enzymes and thus increase plant yield in areas dry and saline management is essential for controlling salinity stress in agriculture as well as corn crop cultivation. In the present study, the effect of seed priming and seed hydroperiming with different growth stimuli on some antioxidant enzymes in maize conditions was investigated at Mohaghegh Ardabili University in 2018. The experiment was conducted as a factorial experiment in a completely randomized design with three replications. Experimental factors included salinity stress (4, 8 and 12 ds/m) and different coating treatments and seed hydropriming including different concentrations of growth stimulants (humic acid, seaweed extract and amino acid) were. Analysis of variance showed that salinity stress was significant at 5% level of antioxidant enzymes. The effect of salt stress on the amount of antioxidant enzymes showed that the activity of enzymes increased with increasing salinity level. So that most of the enzymes catalase (with average of 0.48 absorption changes per minute) and peroxidase (with average of 0.025 absorbance changes per minute) were assigned to salinity of 8 ds/m. Interaction effects on these traits were not significant. Also, salinity stress at 5% level had significant effect on peroxidase activity and the highest amount (0.025 absorption changes per minute) belonged to salinity of 8 ds/m. It can be concluded that seed coating had no effect on the activity of antioxidant enzymes under salinity conditions at seedling stage.

Actions (login required)

View Item