| 因素 | 主成分 | |||
|---|---|---|---|---|
| PC1 | PC2 | 生物 | PC4 | |
| 株高 | 0.743 | 0.205 | −0.516 | 0.213 |
| 干重 | 0.020 | 0.024 | −0.780 | 0.423 |
| 生根率 | 0.849 | 0.383 | −0.051 | 0.161 |
| 平均根 | 0.829 | 0.293 | −0.158 | −0.248 |
| 根的长度 | 0.939 | 0．002 | −0.159 | −0.198 |
| 根表面积 | 0.931 | 0.044 | −0.096 | −0.237 |
| 根卷 | 0.885 | 0.262 | −0.242 | 0.067 |
| 叶绿素a | 0.653 | −0.643 | 0.318 | 0.210 |
| 叶绿素b | 0.598 | −0.663 | 0.394 | 0.181 |
| 总叶绿素 | 0.665 | −0.688 | 0.049 | 0.209 |
| 叶绿素a / b | 0.637 | −0.650 | 0.343 | 0.201 |
| 阵线/ Fo | −0.235 | 0.751 | 0.330 | 0.453 |
| 阵线/ Fm | −0.474 | 0.560 | 0.448 | 0.300 |
| Y(二) | 0.431 | 0.731 | 0.300 | −0.319 |
| qP | 0.700 | 0.257 | 0.575 | −0.077 |
| NPQ / 4 | −0.380 | −0.478 | −0.020 | −0.473 |
| ETR2 | 0.605 | 0.757 | 0.137 | −0.003 |
| 特征根 | 8.396 | 1.147 | 0.872 | 0.863 |
| 贡献率 | 44.642% | 25.747% | 12.479% | 7.059% |
| 累积贡献率 | 89.927% | |||