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2 秸秆还田量对不同基因型夏玉米叶面积指数（LAI）的影响

Table 2 LAI 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 LAIa LAIm LAIa LAIm 浚单20 XD20 S0 3.42±0.31b 0.66±0.08b 3.30±0.19a 0.75±0.02b S1 4.11±0.49ab 1.16±0.06a 3.58±0.18a 1.31±0.05a S2 4.10±0.28ab 1.02±0.03ab 3.60±0.33a 1.25±0.07a S3 4.63±0.20a 0.79±0.04ab 3.64±0.31a 0.77±0.03b 均值 Mean 4.06 0.91 3.53 1.02 郑单958 ZD958 S0 3.32±0.08a 1.86±0.07b 3.11±0.13b 1.74±0.11b S1 3.71±0.09a 2.11±0.13ab 3.49±0.30ab 2.27±0.25a S2 3.75±0.37a 2.21±0.28ab 3.57±0.10ab 2.64±0.07a S3 4.05±0.17a 2.26±0.01a 3.89±0.11a 2.43±0.21a 均值 Mean 3.70 2.11 3.52 2.27 方差分析 ANOVA (F-value) G 3.22 190.38** 0.01 188.16** S 3.99* 3.61* 1.99 11.05** G×S 0.25 1.65 0.52 3.33*