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

图2 不同处理下玉米叶片代谢组的主成分分析 A: 第一主成分(PC1)和第二主成分(PC2)的得分图; B: PC1前十位正载荷和负载荷的代谢物; C: PC2前十位正载荷和负载荷的代谢物。FMZL: 地膜覆盖低密度种植的ZD958; FMZH: 地膜覆盖高密度种植的ZD958; FMXL: 地膜覆盖低密度种植的XY335; FMXH: 地膜覆盖高密度种植的XY335; NMZL: 无覆盖低密度种植的ZD958; NMZH: 无覆盖高密度种植的ZD958; NMXL: 无覆盖低密度种植的XY335; NMXH: 无覆盖高密度种植的XY335。其中绿色色块代表较低的含量, 红色色块代表较高的含量。

Fig. 2 Principal component analysis (PCA) of the metabolic profile of maize leaves under different treatments A: scores of the first principal component (PC1) and the second principal component (PC2). B: the top ten negative and metabolites of PC1. C: the top ten negative and metabolites of PC2. FMZL: ZD958 with low planting density and plastic film mulching; FMZH: ZD958 with high planting density and plastic film mulching; FMXL: XY335 with low planting density and plastic film mulching; FMXH: XY335 with high planting density and plastic film mulching; NMZL: ZD958 with low planting density and no mulching; NMZH: ZD958 with high planting density and no mulching; NMXL: XY335 with low planting density and no mulching; NMXH: XY335 with high planting density and no mulching. Among them, green represents lower expression abundance, and red represents higher expression abundance.