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Table III
Eigenvalues and proportion and cumulative variance explained by the first three principal components (PCs) based on the analysis of climatic variables measured during cell enlargement and wall thickening and lignification in xylem of black spruce and balsam fir.
| Cell enlargement | Wall thickening and lignification | ||||||
|---|---|---|---|---|---|---|---|
| Eigenvalue | Proportion (%) | Cumulative (%) | Eigenvalue | Proportion (%) | Cumulative (%) | ||
| PC1 | 4.09 | 45.51 | 45.51 | 7.01 | 77.87 | 77.87 | |
| PC2 | 3.29 | 36.58 | 82.09 | 1.12 | 12.47 | 90.34 | |
| PC3 | 1.26 | 14.02 | 96.12 | 0.38 | 4.23 | 94.57 | |