Resistance of Scots pine wood to Brown-rot fungi after long-term forest fertilization |
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Authors: | Juha Heijari Anne-Marja Nerg Seija Kaakinen Elina Vapaavuori Hannu Raitio Teuvo Levula Hannu Viitanen Jarmo K Holopainen Pirjo Kainulainen |
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Institution: | (1) Department of Ecology and Environmental Science, University of Kuopio, P.O. Box 1627, FIN-70211 Kuopio, Finland;(2) The Finnish Forest Research Institute, Suonenjoki Research Station, FIN-77600 Suonenjoki, Finland;(3) The Finnish Forest Research Institute, Helsinki Unit, Unioninkatu 40A, FIN-00170 Helsinki, Finland;(4) The Finnish Forest Research Institute, Parkano Research Station, FIN-39700 Parkano, Finland;(5) VTT Building and Transport, P.O. Box 1806,, FIN-02044 VTT, Finland |
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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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Keywords: | Decay resistance Forest fertilization Pinus sylvestris Wood extractives Wood properties |
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