シメトリンとジメタメトリンに対するタイ国産イネ品種の耐性

概要

論文の詳細を見る
Tolerance of fourteen Thai RD-rice cultivars (Oryza sativa L.)to the herbicides simetryn(2,4-bis(ethylamino)-6-methylthi-o-s-triazine) and dimethametryn(2-(1,2-dimethylpropylamino)-4-ethylamino-6-methylthio-s-triazine) was surveyed. When the herbicides were applied to roots through a nutrient solution, dimethametryn was more phytotoxic to the plants than simetryn. Differences in tolerance to the herbicides were observed in the nutrition solution treatment. RD-1, 21, 23, 25 and 27 were relatively tolerant and RD-11, 13, 15 and 17 were susceptible to both herbicides. When the herbicides were applied to the soil, no clear difference in tolerance was noted among the cultivars ; in this treatment, dimethametryn was less phytotoxic. The data demonstrated that relative phytotoxic activity of the herbicides changed depending on the method of treatment. Adsorption and movement of the herbicide in the soil may contribute to its phytotoxicity.
日本雑草学会の論文
1989-12-25