Figure 10.
PCA of the modifications in RSA in response to nutrient deficiencies. PCA was based on PR length, average 1° LR length, 1° LR density, average 2° LR length, 2° LR density, and the ratio between BZPR and PR length under the supply of different concentrations of P, N, Ca, K, Mg, S, Fe, Mn, and B. A, PC1 versus PC2. B, PC2 versus PC3. C, Correlation coefficients (r2) obtained for correlations between the variation within individual root traits and the variation within each principal component.