农药学学报2017，Vol.19Issue(2)：189-194,6.DOI:10.16801/j.issn.1008-7303.2017.0025
丙炔氟草胺除草活性及对棉花的安全性
Evaluation of herbicidal activity and safety to cotton of flumioxazin
摘要
Abstract
Flumioxazin, which targets the protoporphyrin oxidase, is an N-phenylphthalimide herbicide. In order to explore its application prospect in cotton fields of China, the weed controlling spectrum, herbicidal activity and safety of flumioxazin to cotton were tested under greenhouse conditions. The results showed that flumioxazin displayed good controlling effect on the common broadleaf weeds infesting cotton. At the rate of 15 g a.i./hm2, flumioxazin application resulted in higher than 90% fresh weight reduction of Portulaca oleracea, Amaranthus retroflexus, Chenopodium album, Chenopodium serotinum and Eclipta prostrate, and 80%-90% fresh weight reduction of Rorippa indica, Sonchus arvensis, Conyza canadensis, Solanum nigrum, Digitaria sanguinalis and Eleusine indica. Flumioxazin showed higher herbicidal activity against P. oleracea, A. retroflexus, S. nigrum, C. album than pendimethalin. The selectivity indexes between Lumianyan 28 and P. oleracea, A. retroflexus, S.nigrum and C. album were 79.1, 38.1, 32.1 and 112.6, respectively, which were much higher than that of pendimethalin with corresponding selectivity index of 12.0, 9.9, 5.8 and 9.2, respectively. The selectivity index between Lumianyan 37, Xinqiu 4 and the weed species mentioned above was similar to that of Lumianyan 28. This study indicated that the flumioxazin could be used as one of candidate herbicides for the control of broadleaf weeds in cotton fields.关键词
丙炔氟草胺/除草活性/棉花/杀草谱/安全性Key words
flumioxazin/herbicidal activity/cotton/weed control spectrum/safety分类
农业科技引用本文复制引用
谭金妮,李琦,郭文磊,刘伟堂,王金信..丙炔氟草胺除草活性及对棉花的安全性[J].农药学学报,2017,19(2):189-194,6.基金项目
山东省现代农业产业技术体系(SDAIT-07-011-08) （SDAIT-07-011-08）
国家公益性行业(农业)科研专项(201303031). （农业）
