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.
Fujian Journal of Agricultural Sciences