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杂交水稻超高产特性研究 预览 被引量:77

The characteristics of super high-yielding hybrid rice
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摘要 2001年在云南省永胜县涛源乡种植的特优175和Ⅱ优明86超高产展示田,最高产量田块的产量分别达到17.78 t@hm-2和17.95 t@hm-2,创造世界水稻单产最高纪录.研究结果表明,获得杂交水稻超高产的主要原因是库容量大和生物产量高;大库容量主要靠培育大穗;干物质生产优势表现在中、后期,特优175和Ⅱ优明86中、后期群体生长率分别较汕优63高34.5%~37.2%和31.4%~33.7%. The trial on performance of super high-yielding hybrid rice Teyou 175 and I youming 86 were carried out in Taoyuan Town, Yongsheng County, Yunnan Province in 2001. The results showed that the highest yield of Teyou 175 and II youming 86 reached 17. 78 t. hm-2and 17. 95 t . hm~2 respectively and broke the world record of the rice yield in a single cropping season. Super high-yielding mainly owed to larger sink size and higher biomass production. Super high-yielding hybrid rice had larger sink size which mainly depended on large panicle and had dry matter accumulative superiority and higher crop growth rate (CGR.) during the middle and late periods. The CGR of Teyou 175 and I youming 86 increased by 34. 5% - 37. 2% and 31. 4% respectively than that of Shanyou 63.
作者 谢华安 王乌齐 杨惠杰 杨高群 李义珍 XIE Hua-an, WANG Wu-qi, YANG Hui-jie, YANG Gao-qun, LI Yi-zhen (Fujian Academy of Agricultural Sciences, Fuzhou, Fujian 350003, China; Lijiang Agricultural Institute, Lijiang, Yunnan 674100, China)
出处 《福建农业学报》 2003年第4期 201-204,共4页 Fujian Journal of Agricultural Sciences
基金 中国超级稻计划
关键词 杂交水稻 云南 永胜县 特优175 Ⅱ优明86 品种 产量 库容量 生物产量 干物质生产 产量构成 群体生长率 Hybrid rice Super high-yielding Yield components Dry matter production Crop growth rate
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