homocyclic ring；homoatomic ring

Synomones were mainly from creeping type mung bean plants.

用嗅觉仪测定螟黄赤眼蜂对提取物行为反应结果,表明协同素主要来自匍匐型绿豆品种,并主要由吸附法提取获得,活性物质主要存在于叶片中,并随生长期的增长而增加。