Effect of various soil salinity level on the antioxidant and physiological properties of corn plant (Zea mays)

Abstract

To study the effect of various soil salinity levels on the antioxidant enzymes and physiological characteristics of corn as an indicator of salt stress resistance, present study was conducted in 2013 at Research lab of environmental, Faculty of Biological Sciences, University of Kharazmi, Iran. Furthermore, desert soils of Libya, India, Iraq and Karaj were used for testing the effect of soil salinity on the quantity of oxidant enzymes and various properties of maize plant. For providing favorable atmospheric conditions 33000 lux light and spray of perlite medium was used. Corn crop is highly sensitive to soil salinity so all the cultivation was carried out under conditions of soil EC lower than 20 ds/m and 8.5 pH. Results of the study revealed that the salt stress significantly affect the amount of antioxidant enzymes such as guaiacol peroxidase and malondialdehyde. Furthermore, it was reported that saline soil did not have any negative effect on the physiological characteristics and growth of corn plant growth.

Changes of Soil C Stock under Establishment and Abandonment of Arable Lands in Permafrost Area—Central Yakutia

“…Therefore, similar to salt concentration, the value of EC is also directly proportional to the salinity and highly saline soil always has higher EC. Similar types of findings were reported by Smith and Doran [45], Anderson Cook et al [46] and Ezatti and Karimi [47] on the deserts of mid-Asia. Usually in areas without permafrost, where the water table is within a few meters of the soil surface, the capillary rise of saline groundwater will transport salts to the soil surface, salinizing all soil profile.…”