大豆应用920缓解多效唑药害的效果

Effect of 920 Application in Soybean on Paclobutrazol Damage

进行了不同浓度920对受到前茬小麦施用过量多效唑药害大豆的缓解效果研究,结果表明:在大豆受到中等偏轻的药害条件下,用40～100 mg/kg的920可以缓解大豆药害症状,促进大豆节间伸长,株高、结荚高度增高,增强叶片的光合能力,提高百粒重。以80～100 mg/kg的920对大豆的产量恢复效果最佳。

This paper investigated the remission effects of different concentrations of 920 on soybean paclobutrazol damage. The results showed that the 920 with 40-100 mg/kg could alleviate the soybean paclobutrazol damage symptom, promote internode elongation, increase plant height and pod-setting height, enhance the photosynthetic capacity of leaf and increase 100-seed weight under the condition of middle or slightly low paclobutrazol damage. 920 with 80-100mg/kg had the best restoration effects on yield of soybean.