绿色超级稻品种的农艺与生理性状分析

许阳东,朱宽宇,章星传,王志琴,杨建昌

Analysis in agronomic and physiological traits of green super rice

Yang-Dong XU,Kuan-Yu ZHU,Xing-Chuan ZHANG,Zhi-Qin WANG,Jian-Chang YANG

表7 水稻部分农艺生理性状与产量及植株氮素籽粒生产效率(IE_N)的相关系数(r)

Table 7 Correlation coefficients (r) of some agronomic and physiological traits with grain yield and internal nitrogen use efficiency (IE_N) in rice

性状 Trait	r
性状 Trait	产量 Grain yield	IE_N
茎蘖成穗率 Percentage of productive stems and tillers	0.99^**	0.97^**
抽穗期糖花比 Sugar-spikelet ratio at heading time	0.89^**	0.93^**
颖花/叶面积 (粒叶比) Spikelets/leaf area (grain-leaf ratio)	0.90^**	0.92^**
灌浆期作物生长速率 Crop growth rate during grain filling	0.91^**	0.92^**
灌浆期净同化速率 Net assimilate rate during grain filling	0.85^**	0.88^**
灌浆期根系氧化力 Root oxidation activity during grain filling	0.91^**	0.90^**
茎中同花物转运率 Percentage of assimilate remobilization from stems	0.92^**	0.96^**
收获指数 Harvest index	0.88^**	0.89^**