玉米穗三叶与产量的相关和通径分析

崔淑娜, 王晔, 卢雨晴, 潘金豹, 张秋芝

Correlation and Path Analysis of Three Ear Leaves on Yield in Maize

Cui Shuna, Wang Ye, Lu Yuqing, Pan Jinbao, Zhang Qiuzhi

表1 玉米穗三叶性状与小区产量描述统计结果

Table 1 Descriptive statistical results of three ear leaves characteristics and plot yield of maize

指标 Index 极小值 Minimum 极大值 Maximum 平均 Mean 标准差 Standard deviation 变异系数 Coefficient of variation (%) 小区产量Plot yield (kg) 1.61 5.35 3.71 0.71 19.27 穗上叶面积Upper ear leaf area (cm2) 435.0 750.3 583.2 0.01 9.59 穗位叶面积Ear leaf area (cm2) 493.4 789.8 639.5 0.01 8.76 穗下叶面积Lower ear leaf area (cm2) 483.0 826.7 660.3 0.01 9.20 穗上叶长Upper ear leaf length (cm) 69.0 94.0 82.4 0.06 6.86 穗位叶长Ear leaf length (cm) 75.5 99.5 88.5 0.06 6.34 穗下叶长Lower ear leaf length (cm) 75.0 104.0 91.0 0.06 6.37 穗上叶宽Upper ear leaf width (cm) 7.5 10.8 9.4 0.01 6.61 穗位叶宽Ear leaf width (cm) 7.7 11.2 9.6 0.01 6.46 穗下叶宽Lower ear leaf width (cm) 8.0 11.5 9.7 0.01 7.03