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草铵膦在转基因抗除草剂杂交稻直播栽培中的应用效果
引用本文:周浩,杨益善,唐俐,肖国樱. 草铵膦在转基因抗除草剂杂交稻直播栽培中的应用效果[J]. 作物研究, 2013, 0(5): 427-430
作者姓名:周浩  杨益善  唐俐  肖国樱
作者单位:[1]中国科学院亚热带农业生态研究所、亚热带农业生态过程重点实验室,湖南长沙410125 [2]国家杂交水稻工程技术研究中心,湖南长沙410125
基金项目:国家转基因生物新品种培育科技重大专项(201IZX08001-003);国家转基因抗除草剂品种中试与示范项目(2012ZX08013005).
摘    要:以转基因抗除草剂杂交早稻“株1S/Bar68—1”为材料,常规除草剂2次除草方式为对照,探讨了草铵膦1次除草方式在水稻直播栽培中的应用效果。结果表明:与常规除草(效果表现为千金子草害)相比,灭生性除草剂草铵膦除草对供试材料株叶形态无显著影响,但使田间杂草数量减少85.3%,减少产量损失33.1%,节约成本37.5%。“株1S!Bar68—1”直播栽培中应用草铵膦除草剂1次除草的技术要点为:草铵膦有效成分0.6g/L,每公顷用量720—960L(有效成分剂量432~576g/hm2),于分蘖末期紧挨冠层均匀喷雾,冒头杂草重点喷施。

关 键 词:转基因水稻  抗除草剂  草铵膦  直播栽培

Application Effect of Glufosinate in Direct Seeding Cultivation of Transgenic Herbicide Resistant Hybrid Rice
ZHOU Hao,YANG Yi-shan,TANG Li,XIAO Guo-ying. Application Effect of Glufosinate in Direct Seeding Cultivation of Transgenic Herbicide Resistant Hybrid Rice[J]. Crop Research, 2013, 0(5): 427-430
Authors:ZHOU Hao  YANG Yi-shan  TANG Li  XIAO Guo-ying
Affiliation:(. Key Laboratory of Agro - ecological Processes in Subtropical Region, Institute of Subtropical Agriculture Chinese Academy of Sciences, Changsha, Hunan 410125, China; 2 China National Hybrid Rice Research and Development Center, Changsha, Hunan 410125, China)
Abstract:The weed control effect of glufosinate in direct seeding field of transgenic herbicide resistant early hybrid rice Zhu 1 S/Bar68 - 1 was studied with conventional herbicide as control. The results indicated that the plant type of hybrid rice was not obviously 'affected, but the stems of weed were decreased by 85.3%, the grain yield loss was decreased by 33. 1% and the weeding cost was decreased by 37.5% in treatment of spraying glufosinate once compared to control. The key techniques of weed control by glufosinate on direct seeding rice included that the dosage of glufosinate was 432 - 576 g (a. i. )/hnl2 and the glufosinate should be sprayed close to rice canopy at the end of tillering stage.
Keywords:Transgenic rice  Herbicide resistance  Glufosinate  Direct seeding
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