Author(s):

Suryakant Saroj, Neeraj Nath Parihar, Sushil S Vitnor and Pradeep Kumar Shukla

Abstract: Maize (Zea maize) is the 3rd most important cereal world in the world following wheat, rice. It is grown mainly in the semi- arid areas of the tropics and subtropics. Rice (Oryza sativa) is one of the main staples in the world and is cultivated mainly in Asia, Africa, and Latin America. The exogenous application of sodium nitroprusside (SNP), a NO donor, significantly alleviated the oxidative damage of salinity in seedlings of rice enhanced the seedlings growth and increased the dry weight of maize seedlings. Paddy & maize plants on exogenous nitric oxide under saline conditions with respect to time of application. Sodium nitroprusside (SNP), as nitric oxide (NO) source, was applied on the leaves by spray before, simultaneously, or after the initiation of saline stress (in 50,100,150 M). This red colour sodium nitro prusside dissolved in water to give solution containing the free complex dianion [Fe(CN)5 NO]-2. The exogenous application of sodium nitroprusside (SNP), a NO donor, significantly alleviated the oxidative damage of salinity in seedlings of rice results may be indicate that salinity and/or SNP causes increase in activity of antioxidant enzymes, such as ascorbate peroxidase, peroxidase, H₂O₂ and as well as leaf content of proline, chlorophyll content (chlorophyll a & chlorophyll b), Carotenoid as comparison to control. The application of SNP simultaneously or after exposure of plants to stress conditions, would be helpful for increasing plant tolerance under salt stress condition. In this research paper we are mainly focused on antioxident activity.

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