pinaster , whereas a marginally non-significant reduction in PC1 (concentration of all resin acids) and a significant decrease for PC2 values (mainly isopimaric and sandaracopimaric concentrations) were found in P . radiata (Species × treatment interactions, Table 5B , Fig 3B ).
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Resin acids as inducible chemical defences of pine seedlings against chewing insects.
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The sentences
These differences in the induced response resulted in a marginally significant species × weevil interaction for the concentration of total resin acids in the stem ( Table 1 ).