摘要
研究了重穗型水稻品种Ⅱ优6078冗余度、库容量、物质积累等指标与产量的关系.结果表明:Ⅱ优6078最佳冗余度比汕优63(对照)降低10.39%,库容量提高11.51%,颖花数提高15.55%;在生育后期,光合产物向穗部运转比汕优63强,群体单位面积生物量提高9.1%,单株物质积累量比汕优63多60%.
The relationship between grain yield and redundancy degree （RD）, sink potential and dry matter accumulation intensity of the heavy-panicled hybrid rice IIyou6078 was studied. Compared with the control variety Shanyou63, the RD of Ilyou6078 decreased by 10. 39%, and its sink potential and glumaceous flower number increased by 11.51% and 15.55%, respectively. In the later period of growth, IIyou6078 showed higher ability of transporting photosynthates to the spikes and its biomass production per unit area and dry matter accumulation per plant were 9.1% and 60% higher than those of Shanyou63.
出处
《西南大学学报（自然科学版）》
CAS
CSCD
北大核心
2009年第2期103-107,共5页
Journal of Southwest University(Natural Science Edition)
基金
重庆市科技厅水稻玉米重大资助项目[17373/17404/17452]
重庆市科技合作资助项目[2008AC1122]
重庆大学青年基金资助项目
关键词
水稻
超高产
冗余度
物质积累
rice
super high-yielding
redundancy degree
dry matter accumulation
