播种方式与种植密度互作对大穗型小麦品种产量和氮素利用率的调控效应

郑飞娜,初金鹏,张秀,费立伟,代兴龙,贺明荣

Interactive effects of sowing pattern and planting density on grain yield and nitrogen use efficiency in large spike wheat cultivar

Fei-Na ZHENG,Jin-Peng CHU,Xiu ZHANG,Li-Wei FEI,Xing-Long DAI,Ming-Rong HE

表2 年份(Y)、播种方式(S)与种植密度(D)对大穗型小麦品种产量、产量构成因素、氮素利用率及其构成因素影响的方差分析

Table 2 Variance analysis of grain yield, yield components, nitrogen use efficiency and its components as affected by year (Y), sowing pattern (S), planting density (D) in large spike wheat cultivar

变异来源 Source of variation	籽粒产量 Grain yield	单位面积穗数 Spikes per unit area	穗粒数 Kernels per spike	千粒重 1000-kernel weight	氮素利用率 NUE	氮素吸收效率NUpE	氮素内在利用效率NUtE
Year (Y)	28.72^***	81.09^***	44.55^***	121.76^***	3.63	92.40^***	94.53^*
Sowing pattern (S)	261.72^***	76.74^***	1416.26^***	193.30^***	258.20^***	501.13^***	46.44^**
Planting density (D)	48.65^***	1483.46^***	5.37^*	296.95^***	47.77^***	93.54^***	73.09^***
Y×S	27.03^***	2114.91^**	5.02^***	2.39^***	28.60^***	19.66^**	13.85^*
Y×D	1.50	2.56^*	481.40^***	669.16^***	0.83	3.13^***	3.77^**
S×D	6.01^***	5.35^***	173.65^***	14.27^*	5.92^***	7.18^***	12.79^***
S×D×Y	0.36	38.54^***	5.82^***	2.82^*	0.38	0.18	3.76^**