以陇薯3号和陇薯6号为试验材料，研究了0.05、0.10 mmol/L SNP对4 ℃低温条件下马铃薯试管苗超氧化物歧化酶(SOD)、过氧化物酶(POD)、过氧化氢酶(CAT)活性的影响。结果表明，SNP可促进SOD、POD、CAT活性提高，减轻低温胁迫对细胞的氧化损伤度，加快细胞修复速度，促进试管苗生长。SNP浓度以0.05 mmol/L最佳。

Use Longshu Ⅲ/Ⅵ as experimental material， the influence of superoxide dismutase (SOD)， peroxidase(POD) and catalase (CAT) activity were studied under the low temperature of 4 ℃ and 0.05、 0.10 mmol/L SNP . The results showed that the SNP can improve the activities of SOD， POD and CAT， reduce the oxidation damage degree of low temperature stress on cell， speed up the repair cells， promote test tube seedlings growth . The best SNP concentration was 0.05 mmol/L .

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国家现代农业马铃薯产业技术体系(CARS-10-P05)部分内容