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研究几种化学制剂对番木瓜抗环斑病毒和叶片中防御酶活性影响的结果表明,接种番木瓜环斑病毒后,植株叶中多酚氧化酶(PPO)、超氧化物歧化酶(SOD)和过氧化物酶(POD)的活性均明显升高,其中PPO和POD总体的升高幅度大,SOD的总体升幅较小;病毒必克的升幅较大,83增抗剂和水杨酸的升幅较小。83增抗剂、水杨酸和病毒必克均能使番木瓜叶中PPO、SOD和POD活性持续升高,有效减轻了环斑病的病情,防治效果依次为83增抗剂>水杨酸>病毒必克。
The effects of several chemical agents on the activity of defense enzymes in papaya anti-ring spot virus and leaves were studied. The results showed that after inoculation with papaya ringspot virus, the contents of polyphenol oxidase (PPO), superoxide dismutase (SOD) And peroxidase (POD) activity were significantly increased, of which PPO and POD overall increase in the magnitude of the overall increase in SOD was small; the virus increased significantly grams grams, 83 enhancers and salicylic acid Small increase. 83 enhancer, salicylic acid and Bixgake all increased the activity of PPO, SOD and POD in papaya leaves effectively and effectively reduced the incidence of ring spot disease. The control effect was 83%> salicylic acid > Virus will be grams.