Principal component analysis (PCA) of individuals of Protium icicariba. The concentrations of starch, cellulose, hemicelluloses, lignin and sucrose in leaves of individuals occurring in periodically flooded (PI), transition (IT) and non-flooded (NI) zones of a restinga forest were analyzed.

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... the Principal Component Analysis (PCA), it was possible to relate in the multivariate space the independent variable forest zone and the most significant dependent variables (sucrose, starch, cellulose, hemicelluloses and lignin) for leaf (organ that showed the best response). Individuals from the non-flooded zone are located mainly to the right of axis 1 and, therefore, are associated with higher concentrations of starch, sucrose and hemicelluloses (Figure 4). On the other hand, individuals in the periodically flooded zone are on the left and, therefore, are associated with higher concentrations of cellulose and lignin. ...