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通过研究Ca~(2+)(0~40 mmol/L CaCl_2)对Na Cl中度胁迫下玉米试管苗生长、生化指标的影响,分析Ca~(2+)对玉米试管苗在中度盐胁迫下的作用。结果表明,当加入100 mmol/L的Na Cl溶液时玉米试管苗生长明显受到抑制,CaCl_2处理后,盐胁迫下玉米试管苗的生长抑制得到部分缓解,SOD活性、POD酶活性、CAT酶活性明显升高。说明外源Ca~(2+)有助于缓解玉米试管苗的盐伤害,其中以30 mmol/L CaCl_2的缓解效果最好。
The effects of Ca ~ (2+) on the growth and biochemical indexes of maize (Triticum aestivum L.) seedlings under moderate NaCl stress were studied by studying Ca ~ (2 +) (0 ~ 40 mmol / L CaCl_2) Under the role. The results showed that the growth of test-tube seedlings was obviously inhibited when 100 mmol / L NaCl solution was added. After CaCl2 treatment, the growth inhibition of the test-tube seedlings under salt stress was partly alleviated, and the SOD activity, POD activity and CAT activity were obviously Rise. It showed that exogenous Ca 2+ could help alleviate the salt damage of corn plantlets, especially 30mmol / L CaCl 2.