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4 秸秆还田量对不同基因型夏玉米开花前后营养器官干物质转运的影响

Table 4 Dry matter transfer before and after anthesis and their contribution to grain dry matter as affected by the summer maize genotypes and straw returning amount

基因型 Genotype 秸秆还田量 Straw returning amount 花前 Before anthesis 花后 After anthesis 叶片 Leaf 茎鞘 Stem+sheath DMR (g/plant) DMRE (%) DMRCG (%) DMR (g/plant) DMRE (%) DMRCG (%) DMAA (g/plant) DMAACG (%) 浚单20 XD20 S0 14.1±1.9b 39.2±4.6b 11.9±1.7b 1.0±0.4b 2.4±0.3b 0.8±0.1b 114.4±9.0b 87.3±2.0a S1 12.6±0.6b 30.9±1.3b 8.2±0.7b 2.0±0.8b 4.1±0.1b 1.4±0.4b 156.4±9.3a 90.5±1.3a S2 13.8±2.2b 33.4±5.0b 9.7±1.6b 2.3±0.3b 4.6±0.6b 1.6±0.2b 140.4±5.6ab 88.8±1.4a S3 20.5±3.0a 49.6±5.3a 16.9±3.2a 14.4±2.0a 27.5±1.2a 12.0±1.0a 97.2±8.9c 71.1±3.8b 均值 Mean 15.3 38.3 11.6 4.9 9.7 4.0 126.9 84.4 郑单958 ZD958 S0 3.2±0.9a 9.3±1.2a 2.6±0.5a 1.5±0.3c 3.5±0.5c 1.1±0.1c 145.4±6.9b 96.3±0.9a S1 3.9±0.7a 11.1±1.1a 2.9±0.4a 2.3±0.4bc 5.7±0.5bc 1.7±0.3bc 159.4±2.9b 95.3±0.7a S2 5.3±0.7a 12.5±1.9a 3.2±0.7a 4.6±0.5ab 7.8±0.9ab 2.8±0.4ab 183.8±1.5a 94.0±0.5a S3 3.3±0.5a 8.1±1.2a 2.0±0.3a 5.4±0.6a 9.2±1.6a 3.4±0.7a 164.8±6.0a 94.6±2.3a 均值 Mean 3.9 10.3 2.7 3.5 6.5 2.3 163.4 95.0 方差分析 ANOVA (F-value) G 103.05** 151.40** 75.22** 5.83* 27.52** 22.35** 27.86** 61.89** S 2.11 2.14 2.69 42.75** 135.89** 78.46** 4.41* 11.81** G×S 3.30* 4.89* 4.34* 18.26** 72.52** 43.98** 10.07** 10.50**