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采用室内盆栽试验,系统地研究了杀菌剂唑胺菌酯(SYP-4155)对黄瓜和番茄生长发育过程中生理指标及保护酶活性的影响。结果表明,与空白对照相比,唑胺菌酯明显提高了黄瓜和番茄叶片中叶绿素含量,且浓度为300mg/L时影响最大,在一定范围内,叶绿素含量与该药剂的浓度呈正相关,可溶性糖含量和蛋白质含量则变化不大;施用不同浓度的唑胺菌酯后,叶片中保护酶(过氧化物酶POD、多酚氧化酶PPO、过氧化氢酶CAT、超氧化物歧化酶SOD)的活性在一定时间内均比对照高,浓度为300mg/L时黄瓜中4种酶的活性分别较对照高34.67%、34.78%、36.36%和11.94%,且浓度越高,酶活性的变化越大。
The effects of SYP-4155, a bactericide, on physiological indices and activities of protective enzymes in the growth and development of cucumber and tomato were systematically studied in pot experiments. The results showed that azoxystrobin significantly increased the content of chlorophyll in cucumber and tomato leaves compared with the blank control, and the concentration of chlorpyrifos was the highest when the concentration was 300 mg / L. In a certain range, chlorophyll content was positively correlated with the concentration of the agent, Sugar content and protein content did not change much. After applying different concentrations of pyraclostrobin, the activities of protective enzymes (peroxidase POD, PPO, catalase CAT, superoxide dismutase SOD) The activities of four kinds of enzymes in cucumber were 34.67%, 34.78%, 36.36% and 11.94% higher than those of the control at the concentration of 300mg / L, respectively. The higher the concentration, the more the changes of enzyme activity Big.