施氮量与氮磷钾配比对小粒型杂交稻源库特性的影响

潘群肖, 龙超, 卓乐, 殷超, 肖敏, 周文新, 易镇邪

Effects of Nitrogen Application Rate and N-P-K Ratio on Source-Sink Characteristics of Small-Seed Hybrid Rice

Pan Qunxiao, Long Chao, Zhuo Le, Yin Chao, Xiao Min, Zhou Wenxin, Yi Zhenxie

表10 小粒杂交稻源库性状与产量的相关性

Table 10 Correlation between source-sink traits and yield of small-seed hybrid rice

源性状 Source trait		实际产量Actual yield		库性状 Sink trait	实际产量Actual yield
源性状 Source trait		2023	2024	库性状 Sink trait	2023	2024
LAI	分蘖期	0.898^**	0.878^**	总颖花数Total spikelets	0.935^**	0.938^**
	孕穗期	0.897^**	0.898^**	总库容量Total sink capacity	0.938^**	0.942^**
	齐穗期	0.929^**	0.916^**	库容有效充实度Available filled ratio of sink capacity	-0.401	-0.646^*
	灌浆中期	0.907^**	0.918^**	有效穗数Effective panicle number	0.827^**	0.855^**
	剑叶	0.962^**	0.879^**	穗粒数Grains per panicle	0.834^**	0.634^*
	倒二叶	0.889^**	0.921^**	结实率Seed-setting rate	-0.565	-0.627^*
	倒三叶	0.962^**	0.852^**	千粒重1000-grain weight	-0.193	-0.217
	高效LAI	0.964^**	0.926^**	理论产量Theoretical yield	0.989^**	0.988^**
SPAD值 SPAD value	分蘖期	0.848^**	0.765^**	孕穗期粒叶比Grain to leaf ratio at booting stage	-0.214	0.178
SPAD值 SPAD value	孕穗期	0.876^**	0.814^**	齐穗期粒叶比Grain to leaf ratio at full heading stage	-0.039	-0.132
	齐穗期	0.896^**	0.876^**	灌浆中期粒叶比Grain to leaf ratio at mid-filling stage	-0.239	-0.221
	灌浆中期	0.870^**	0.894^**
干物质积累量 Dry matter accumulation	孕穗期	0.953^**	0.888^**
干物质积累量 Dry matter accumulation	齐穗期	0.970^**	0.934^**
	灌浆中期	0.972^**	0.932^**
	成熟期	0.988^**	0.956^**