Abstract
The susceptibility of Scots pine (Pinus sylvestris L.) sap- and heartwood against the wood decaying brown-rot fungus (Coniophora puteana) was investigated after long-term forest fertilization at three different sites in central Finland. Different wood properties: wood extractives, wood chemistry, and wood anatomy were used to explain sap- and heartwood decay. Scots pine sapwood was more susceptible to decay than its heartwood. In one site, sapwood seemed to be more resistant to wood decay after forest fertilization whereas the susceptibility of heartwood increased. Significant changes in the sapwood chemistry were found between treatment and sites, however, no relationship between wood chemistry and wood decay was observed in the factor analysis. The results of this study show that there was an inconsistent relationship between decay susceptibility and fertilization and the measured physical and chemical attributes of the wood were not consistently correlated with the decay rate.
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Acknowledgements
The Graduate School in Forest Sciences and the Academy of Finland (Research Council for Biosciences and Environment, projects no. 43159 and 45066) have financially supported this research. We thank Terhi Vuorinen, Hanna Nikulainen, Jaana Rissanen and Juhani Tarhanen for help with the chemical analysis, the Finnish Forest Research Institute personnel for carrying out the sampling at study sites and Ewen MacDonald for revising the language
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Heijari, J., Nerg, AM., Kaakinen, S. et al. Resistance of Scots pine wood to Brown-rot fungi after long-term forest fertilization. Trees 19, 729–735 (2005). https://doi.org/10.1007/s00468-005-0002-x
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DOI: https://doi.org/10.1007/s00468-005-0002-x