论文部分内容阅读
提出了作物和杂草对芽后除草剂敏感性速测方法的根据,以确定施用除草剂的最适条件。为评价敏感性,将植株地上部器官(叶)在用开水溶解的亚甲蓝(1∶10000)中浸泡5-15秒钟,后移入纯净冷水。有蓝色变化叶的数量或叶表面积的指标与植株对除草剂的敏感性相关。认为叶量和叶表面积颜色变化小于20%的植株是抗除草剂的,变化大于
The basis for the rapid determination of the sensitivity of crops and weeds to post-emergence herbicides was proposed to determine the optimum conditions for the application of herbicides. To assess susceptibility, soak the plant’s upper organs (leaves) in methylene blue (1: 10000) dissolved in boiling water for 5-15 seconds before moving into pure cold water. Indicators of the number of blue-changing leaves or leaf surface area are related to the sensitivity of the plant to the herbicide. Plants that consider leaf color and leaf surface area less than 20% color change are herbicidal and vary more than