杂草科学
雜草科學
잡초과학
WEED SCIENCE
2014年
2期
59-61
,共3页
硝磺草酮%玉米%生物活性%选择性
硝磺草酮%玉米%生物活性%選擇性
초광초동%옥미%생물활성%선택성
mesotrione%corn%bioactivity%selectivity
通过温室盆栽试验，研究茎叶喷施硝磺草酮对反枝苋、稗草和千金子的活性及对玉米的安全性。结果表明硝磺草酮对玉米和反枝苋、千金子、稗草的选择性指数分别为6．73、5．95、5．34。说明硝磺草酮对玉米和杂草的选择性很强，可安全地使用茎叶处理法防除玉米田杂草。
通過溫室盆栽試驗，研究莖葉噴施硝磺草酮對反枝莧、稗草和韆金子的活性及對玉米的安全性。結果錶明硝磺草酮對玉米和反枝莧、韆金子、稗草的選擇性指數分彆為6．73、5．95、5．34。說明硝磺草酮對玉米和雜草的選擇性很彊，可安全地使用莖葉處理法防除玉米田雜草。
통과온실분재시험，연구경협분시초광초동대반지현、패초화천금자적활성급대옥미적안전성。결과표명초광초동대옥미화반지현、천금자、패초적선택성지수분별위6．73、5．95、5．34。설명초광초동대옥미화잡초적선택성흔강，가안전지사용경협처리법방제옥미전잡초。
Pot experiments were conducted in greenhouse to investigate the bioactivity of mesotrione to Amaranthus ret-roflexus,Leptochloa chinensis and Echinochloa crusgalli and its selectivity to corn .The selective index of mesotrione be-tween corn and A.retroflexus,L.chinensis and E.crusgalli were 6.7,6.0,and 5.3 respectively,showing that the selectiv-ity of mesotrione to corn and weeds was very strong ,and that weeds in corn fields could be safely controlled by postemer-gence application of mesotrione .
