地膜覆盖对黄土高原地区两种种植密度下玉米叶片代谢组的影响

牛丽, 白文波, 李霞, 段凤莹, 侯鹏, 赵如浪, 王永宏, 赵明, 李少昆, 宋吉青, 周文彬

Effects of plastic film mulching on leaf metabolic profiles of maize in the Loess Plateau with two planting densities

NIU Li, BAI Wen-Bo, LI Xia, DUAN Feng-Ying, HOU Peng, ZHAO Ru-Lang, WANG Yong-Hong, ZHAO Ming, LI Shao-Kun, SONG Ji-Qing, ZHOU Wen-Bin

表1 玉米单株籽粒产量及产量构成要素

Table 1 Grain yield per plant and yield components of maize

处理 Treatment 单株籽粒产量 Grain yield per plant (g) 每穗籽粒数 Number of kernels per ear 千粒重 1000-kernel weight (g) FMZL 210.44 ± 14.22 a 576.21 ± 38.56 ab 295.97 ± 5.10 abc FMZH 138.76 ± 7.97 c 561.87 ± 22.38 abc 279.74 ± 24.07 bc FMXL 185.19 ± 4.76 b 620.53 ± 31.70 a 319.36 ± 29.09 a FMXH 132.57 ± 8.32 c 558.35 ± 26.93 abc 287.68 ± 7.87 bc NMZL 183.72 ± 6.89 b 492.40 ± 48.18 d 302.10 ± 3.71 ab NMZH 108.04 ± 9.95 d 507.97 ± 22.00 cd 297.22 ± 10.59 abc NMXL 141.91 ± 7.16 c 530.95 ± 42.23 bcd 304.90 ± 5.95 ab NMXH 126.11 ± 7.22 c 471.89 ± 29.38 d 270.69 ± 16.18 c 变异来源Source of variation 覆膜Plastic film mulching ** ** ** 密度Density ** ** ** 品种Cultivar ** NS * 覆膜×密度Plastic film mulching × Density * NS NS 覆膜×品种Plastic film mulching × Cultivar NS NS NS 密度×品种Density × Cultivar ** * NS 覆膜×密度×品种 Plastic film mulching × Density × Cultivar ** NS NS