| 甬优12抽穗动态调查及稻曲病预防适期研究 |
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| 引用本文： | 饶汉宗,罗华池,施通武,李阳,黄世文.甬优12抽穗动态调查及稻曲病预防适期研究[J].中国稻米,2019(1):74-79. |
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| 作者姓名： | 饶汉宗 罗华池 施通武 李阳 黄世文 |
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| 作者单位： | 青田县植物保护检疫站;台州市路桥区蓬街镇农业服务中心;台州市椒江区农业技术推广中心;丽水市土肥植保站;中国水稻研究所 |
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| 基金项目： | "十三五"国家重点研发项目(2018YFD0200304);浙江省"三农六方"科技协助项目(CTZB-F160728AWZ-SNY1-4);中国农业科学院协同创新项目(CAAS-XTCX2016012) |
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| 摘 要： | 稻曲病已由次要病害上升为主要病害,对水稻生产危害严重,不但影响产量还降低其品质。稻曲病发生后(出现稻曲球)就很难防治,只能预防不能治疗。适时打药是高效预防稻曲病的关键。本研究结果表明,对籼粳杂交稻甬优12而言,在破口前10～13 d用专化杀菌剂预防1次、破口期再预防1次的处理防治效果最好,穗防效和病情指数防效分别为94.59%和98.33%;仅在破口前10 d或13 d喷1次药预防的处理,穗防效分别为86.95%和87.36%,病情指数防效分别为94.98%和95.99%。鉴于在实际生产中很难准确确定具体哪一天是破口前的第10 d或第13 d,本研究采用水稻生理学性状"叶枕平"(剑叶叶枕与倒数第2叶叶枕持平,或叶枕距为零)界定为最佳打药期,即稻田中1/3～1/2水稻植株处于叶枕平为第1次打药预防稻曲病的适期,第2次打药适期为破口前。
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| 关 键 词： | 水稻 抽穗期 稻曲病 防治适期 破口期 甬优12 |
Investigation of Heading Dynamic States of Yongyou 12 and Optimal Time to Spray Chemicals for Prevention Rice False Smut |
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| RAO Hanzong,LUO Huachi,SHI Tongwu,LI Yang,HUANG Shiwen.Investigation of Heading Dynamic States of Yongyou 12 and Optimal Time to Spray Chemicals for Prevention Rice False Smut[J].China Rice,2019(1):74-79. |
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| Authors: | RAO Hanzong LUO Huachi SHI Tongwu LI Yang HUANG Shiwen |
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| Institution: | (Plant Protection and Quarantine Station of Qingtian County, Qingtian, Zhejiang 323900, China;Agricultural Service Center of Pengjie Town, Luqiao District of Taizhou City, Taizhou, Zhejiang 318057, China;Popularization Center of Agricultural Technology of Jiaojiang District of Taizhou City, Taizhou, Zhejiang 318000, China;Station of Soil Fertilizer and Plant Protection of Lishui City, Lishui, Zhejiang 323000, China;China National Rice Research Institute, Hangzhou 310006, China) |
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| Abstract: | RAO Hanzong;LUO Huachi;SHI Tongwu;LI Yang;HUANG Shiwen(Plant Protection and Quarantine Station of Qingtian County, Qingtian, Zhejiang 323900, China;Agricultural Service Center of Pengjie Town, Luqiao District of Taizhou City, Taizhou, Zhejiang 318057, China;Popularization Center of Agricultural Technology of Jiaojiang District of Taizhou City, Taizhou, Zhejiang 318000, China;Station of Soil Fertilizer and Plant Protection of Lishui City, Lishui, Zhejiang 323000, China;China National Rice Research Institute, Hangzhou 310006, China) |
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| Keywords: | rice heading stage rice false smut optimum control time before heading Yongyou 12 |
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