| 孙光辉, 强 胜, 戴伟民, 宋小玲*.抗草铵膦转基因水稻‘Y0003’直播田除草剂施用技术研究[J].植物保护,2014,40(5):176-180. |
| 抗草铵膦转基因水稻‘Y0003’直播田除草剂施用技术研究 |
| Herbicide application techniques in direct seeded rice field with glufosinate ammonium resistant transgenic rice ‘Y0003’ |
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| DOI： |
| 中文关键词: 抗草铵膦转基因水稻 直播田 除草剂施用技术 杂草防除 |
| 英文关键词:Glufosinate-ammonium-resistant transgenic rice direct-seeded field herbicide application technique weed control |
| 基金项目:转基因生物新品种培育科技重大专项(2014ZX08011) |
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| 中文摘要: |
| 为给抗草铵膦转基因水稻‘Y0003’商业化生产后除草剂的安全高效施用提供科学依据, 探索了该转基因直播稻田草铵膦的最佳施用时期和施用剂量。研究了在直播稻田3~4叶期、5~6叶期以及分蘖期施用0.225、0.45和0.9 g/hm 2草铵膦(有效成分, 下同)后, 草铵膦对杂草的控制效果和对转基因水稻生长的影响。在测试的3个施药时期, 施用0.225 g/hm 2草铵膦对杂草防除效果都很差, 水稻减产严重; 在水稻3~4叶期和分蘖期施用0.45和0.9 g/hm 2草铵膦对杂草的防除效果也较差, 水稻生长受到严重影响, 与无草对照相比水稻产量显著下降。但在水稻5~6叶期施用0.45 和0.9 g/hm 2草铵膦对主要杂草的防效均在90%以上, 且对水稻安全。因此建议抗草铵膦转基因水稻‘Y0003’直播田在水稻5~6叶期施用0.45~0.9 g/hm 2草铵膦来控制田间杂草。 |
| 英文摘要: |
| In order to provide scientific evidence for safety and effective application of glufosinate-ammonium, the optimum spraying period and effective dosage of glufosinate-ammonium was explored in direct-seeded rice field with glufosinate-ammonium-resistant (GR) transgenic rice ‘Y0003’. Different dosages of glufosinate-ammonium were applied at different spraying periods (three to four leaf stage, five to six leaf stage and tillering stage) in the direct-seeded rice field, and the effect of different spraying periods and dosage of glufosinate-ammonium on weed control and growth of GR transgenic rice were determined. In direct-seeded field, the weed control efficiency were low, and rice yield was reduced significantly at dosage of 0.225 g/hm2 (active ingredient, the same as follows) under three spraying periods. Weed control efficiencies were also low at the dosage of 0.45 g /hm2 and 0.9 g/ hm2 under three to four leaf stage and tillering stage. The growth of transgenic rice was inhibited and rice yield reduced significantly compared with the weed-free control. Whereas weed control efficiencies of 0.45 g/hm2 and 0.9 g/hm2 at five to six leaf stage was more than 90%, without injury on rice and influence on the rice yield. Therefore application of 0.45-0.9 g/hm2 glufosinate-ammonium at five to six leaf stage was recommended for weed control in direct-seeded GR transgenic rice ‘Y0003’ field. |
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