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检测了经茉莉酸甲酯和水杨酸甲酯诱导处理后大豆植株挥发物组分的相对含量,并调查了诱导处理小区的大豆食心虫为害情况。结果表明:对照大豆叶片挥发物检测到8种,豆荚挥发物15种;茉莉酸甲酯诱导后叶片和豆荚挥发物中的酯类和萜类组分相对含量明显增加;水杨酸甲酯诱导后大豆叶片挥发物组分含量与对照差异不大,豆荚中烷类组分含量增加。2种诱导剂处理小区内的大豆食心虫成虫数量、卵荚率、幼虫入荚率和虫食率明显低于对照,且差异显著。茉莉酸甲酯处理区效果好于水杨酸甲酯处理区。
The relative contents of volatile components of soybean plants induced by methyl jasmonate and methyl salicylate were detected and the damage of soybeans and mung beans in induced communities was investigated. The results showed that there were 8 species of volatiles in the control soybean and 15 species of pod volatiles. The relative contents of esters and terpenoids in leaves and pods volatiles were significantly increased after methyl jasmonate induction. Methyl salicylate induced The contents of volatile components in the post-soybean leaves were not significantly different from those in the control, and the content of alkanes in pods increased. The results showed that the number of adults, the rate of pod, the rate of larvae entering pod and the rate of larvae entering pod was significantly lower than that of the control, and the difference was significant. Methyl jasmonate treatment zone is better than methyl salicylate treatment zone.