Study on Mitigative Effects of Exogenous No Donor Sodium Nitroprusside on Corn Nickel Toxicity

Ttested material are corn and sodium nitroprusside. Cultivation and experimental analysis are used to research influence of nickel, sodium nitroprusside and its different concentration ratio on germination of corn seeds. The observation objects include germination percentage of seeds, germination potential, germination index and vitality index; meanwhile, this paper also researches the mitigative mechanism of sodium nitroprusside on growth of corn seedlings and nickel toxicity under nickel stress, and selects the overground and underground growth and physiology and biochemistry indexes etc. as the observation objects. Through analysis of relevant data, following results are obtained: nickel concentration test proves that different nickel treatment concentration has different influence on germination of corn seeds. Nickel with low concentration can slightly promote germination of corn seeds and nickel with high concentration suppresses the corn seeds. Sodium nitroprusside experiment proves that sodium nitroprusside with low concentration can promote the germination of corn seeds and sodium nitroprusside with high concentration has a suppression effect.