不同耐低氮性玉米品种的花后碳氮积累与转运特征

吴雅薇, 蒲玮, 赵波, 魏桂, 孔凡磊, 袁继超

Characteristics of post-anthesis carbon and nitrogen accumulation and translocation in maize cultivars with different low nitrogen tolerance

WU Ya-Wei, PU Wei, ZHAO Bo, WEI Gui, KONG Fan-Lei, YUAN Ji-Chao

表2 年份、品种与氮肥水平对玉米产量和碳氮物质转运、积累量影响的方差分析

Table 2 Variance analysis of year, cultivar, and nitrogen application on grain yield, nitrogen and carbon translocation, and accumulation amount in maize

变异来源 Source of variation	籽粒产量 Yield	花前干物质转运量 DRA	花后干物质积累量 DAA	花前氮素转运量 NRA	花后氮素积累量 NAA	花前NSC 转运量 NSCRA	花后NSC 积累量 NSCAA
年份 Year (Y)	630.15^**	9.61^**	14.86^**	1913.22^**	46.96^**	18.99^**	40.73^**
品种 Cultivar (C)	111.32^**	0.37	124.41^**	502.68^**	18.95^**	127.54^**	89.09^**
氮肥 Nitrogen (N)	165.15^**	107.02^**	180.00^**	27.18^**	152.56^**	174.83^**	154.60^**
Y×C	14.72^**	57.38^**	5.01^*	908.82^**	75.69^**	0.44	25.00^**
Y×N	17.30^**	8.16^**	13.82^**	86.57^**	46.11^**	2.97^*	11.42^**
C×N	13.23^**	10.82^**	2.41^*	5.97^**	4.18^*	20.81^**	3.28^*
Y×C×N	1.05	12.17^**	4.14^**	12.90^**	19.08^**	8.21^**	2.14