秸秆还田量对不同基因型夏玉米产量及干物质转运的影响

穆心愿,赵霞,谷利敏,冀保毅,丁勇,张凤启,张君,齐建双,马智艳,夏来坤,唐保军

Effects of Straw Returning Amount on Grain Yield, Dry Matter Accumulation and Transfer in Summer Maize with Different Genotypes

XinYuan MU,Xia ZHAO,LiMin GU,BaoYi JI,Yong DING,FengQi ZHANG,Jun ZHANG,JianShuang QI,ZhiYan MA,LaiKun XIA,BaoJun TANG

表5 秸秆还田量对不同基因型夏玉米籽粒产量及产量构成因素的影响

Table 5 Yield and its components as affected by the summer maize genotypes and straw returning amount

基因型 Genotype	秸秆还田量 Straw returning amount	2017				2018
基因型 Genotype	秸秆还田量 Straw returning amount	公顷穗数 Ear number (No./hm²)	穗粒数 Grain number per ear	百粒重 100-grain weight (g)	产量 Yield (kg·hm^-2)	公顷穗数 Ear number (No./hm²)	穗粒数 Grain number per ear	百粒重 100-grain weight (g)	产量 Yield (kg·hm^-2)
浚单20 XD20	S0	66700a	509.4b	24.8b	6822.4b	66422a	484.3a	24.9b	6881.4b
浚单20 XD20	S1	66144a	545.5ab	27.2a	8065.3a	68645a	488.3a	27.2a	8062.6a
	S2	67256a	537.4ab	26.9a	7951.4a	65033a	507.7a	26.7ab	7626.0ab
	S3	65588a	567.8a	24.5b	7543.9ab	65866a	525.0a	25.2ab	7393.8ab
	均值 Mean	66422	540.0	25.7	7595.8	66492	501.3	26.0	7490.9
郑单958 ZD958	S0	65866a	495.8a	28.5a	7729.0b	67311a	497.0a	28.9a	7885.4b
郑单958 ZD958	S1	65088a	500.2a	28.7a	8210.7ab	66811a	506.0a	29.6a	8195.7b
	S2	67978a	503.2a	30.6a	8900.2ab	64810a	516.5a	30.8a	9340.6a
	S3	66811a	511.4a	29.5a	9058.9a	67423a	536.7a	30.7a	9102.0ab
	均值 Mean	66436	502.7	29.3	8474.7	66589	514.1	30.0	8630.9
方差分析 ANOVA （F-value）	G	0.12	4.69*	56.17**	8.71**	0.99	0.70	71.56**	20.41**
	S	0.44	1.77	4.76*	3.21*	0.73	1.39	3.93*	3.72*
	G×S	0.20	0.28	2.58	0.80	0.90	0.02	1.77	2.22