ベンチオカーブの殺草特性に関する研究 : イネ科植物における種子重量と感受性差異との関係

概要

論文の詳細を見る
This experiment was carrid out to investigate the relation between susceptivility to benthiocarb and seed weight in 20 species of grasses. The results obtained are as follows. 1) The positive correlation between ED_<50> Value for benthiocarb and seed weight in 20 species of grasses was observed. And a smaller seed line of barnyardgrass was more susceptible to benthiocarb than larger one. 2) When the endosperms of rice seeds were partly cut off, the excised seeds were more susceptible to benthiocarb than the unexcised seeds. 3) The positive high correlation between seed weight and maximum leaf stage of grasses which were possible to grow in dark condition without any additional nutrient was observed with 20 species of grasses. 4) When rice plants and barnyardgrasses were at 3-leaf stage and 1-leaf stage respectively, their seed weights were about 10% of the original weights. And the diference between rice plant and barnyardgrass in susceptibility to benthiocarb decreased in the following order: 2-leaf stage, 1-leaf stage, 3-leaf stage, coleoptile stage, and 4-leaf stage. 5) The correlation between ED_<50> value for benthiocarb and crude fat content in 10 species of grasses was not recognized.
日本雑草学会の論文
1978-10-25