References
- Brandt, J.P., Cerezek, H.F., Mallett, K.I., Volney, W.J.A., Weber, J.D. 2003. Factors affecting trembling aspen (Populus tremuloides Michx.) health in the boreal forest of Alberta, Saskatchewan, and Manitoba, Canada. – Forest Ecology and Management, 178, 287–300.
- Cheng, D., Vrieling, K., Klinkhamer, P.G.L. 2011. The effect of hybridization on secondary metabolites and herbivore resistance: implications for the evolution of chemical diversity in plants. – Phytochemistry Reviews, 10, 107–117.
- Cramer, H.H. 1954. Studies of the large poplar borer Saperda carcharias L. (Untersuchungen über den Grossen Pappelbock Saperda carcharias L.). – Zeitschrift für Angewandte Entomologie, 35, 425–458. (In German).
- DeBell, D.S., Harrington, C.A., Clendenen, G.W., Zasada, J.C. 1997. Tree growth and stand development of four Populus clones in large monoclonal plots. – New Forests, 14, 1–18.10.1023/A:1006501229936
- DeBell, D.S., Singleton, R., Harrington, C.A., Gartner, B.L. 2002. Wood density and fiber length in young Populus stems: relation to clone, age, growth rate, and pruning. – Wood and Fiber Science, 34, 529–539.
- Eckstein, D., Liese, W., Shigo, A.L. 1979. Relationship of wood structure to compartmentalization of discolored wood in hybrid poplar. – Canadian Journal of Forest Research, 9, 205–210.10.1139/x79-036
- Etheridge, D.E. 1961. Factors affecting branch infection in aspen. – Canadian Journal of Botany, 39, 799–816.
- Hynynen, J., Ahtikoski, A., Eskelinen, T. 2004. Yield and profitability of aspen plantation. (Viljelyhaavikon tuotos ja kasvatuksen kannattavuus). – Metsätieteen aikakauskirja, 1, 113–116. (In Finnish).
- Ilstedt, B., Gullberg, U. 1993. Genetic variation in a 26-year old hybrid aspen trial in southern Sweden. – Scandinavian Journal of Forest Research, 8, 185–192.
- Mattson, W.J., Lawrence, R.K., Haack, R.A., Herms, D.A., Charles, P.J. 1988. Defensive strategies of woody plants against different insect-feeding guilds in relation to plant ecological strategies and intimacy of association with insects. – Mattson, W.J., Levieux, J., Bernard-Dagan, C. (eds). Mechanisms of woody plant defenses against insects. Springer-Verlag New York, 3–38.
- Newcombe, G., Bradshaw, H. D. 1996. Quantitative trait loci conferring resistance in hybrid poplar to Septoria populicola, the cause of leaf spot. – Canadian Journal of Forest Research 26, 1943–1950.10.1139/x26-219
- Newcombe, G., Ostry, M., Hubbes, M., Périnet, P., Mottet, M.J. 2001. Poplar diseases. – Dickmann, D., Isebrands, J.G., Eckenwalder, J.E., Richardson, J. (eds). Poplar Culture in North America. National Research Council, Canada, 249–276.
- Nuorteva, M., Patomäki, J., Saari, L. 1981. Large poplar longhorn, Saperda carcharias (L.), as food for whitebacked woodpecker, Dendrocopos Leucotos (Bechst.) – Silva Fennica, 15, 208–221.
- Osier, T.L., Lindroth, R.L. 2001. Effects of genotype, nutrient availability, and defoliation on aspen phytochemistry and insect performance. – Journal of Chemical Ecology, 27, 1289–1313.10.1023/A:1010352307301
- Osier, T.L., Lindroth, R.L. 2006. Genotype and environment determine allocation to and costs of resistance in quaking aspen. – Oecologia, 148, 293–303.
- R Core Team. 2016. R: A language and environment for statistical computing. R Foundation for Statistical Computing, Vienna, Austria. [WWW document]. – URL https://www.R-project.org/ [Accessed 9 January 2017].
- Rytter, L. Stener, L.G. 2005. Productivity and thinning effects in hybrid aspen (Populus tremula L. × P. tremuloides Michx.) stands in southern Sweden. – Forestry, 78, 285–295.10.1093/forestry/cpi026
- Sokal, R.R., Rohlf, F.J. 1995. Biometry: The principles and practice of statistics in biological research. 3rd edition. W.H. Freeman, New York, 887 pp.
- Šrot, M. 1962. Bionomics of poplar borer (Saperda carcharias L.) (Přispěvek k poznani bionomie kozlička topolového (Saperda carcharias L.)). – Reports of the Forest Research Institutes of Czechoslovakia, 25, 85–114. (In Slovenian).
- Steenackers, J., Steenackers, M., Steenackers, V., Stevens, M. 1996. Poplar diseases, consequences on growth and wood quality. – Biomass and Bioenergy, 10, 267–274.
- Tullus, A., Rytter, L., Tullus, T., Weih, M., Tullus, H. 2012. Short-rotation forestry with hybrid aspen (Populus tremula L. × P. tremuloides Michx.) in Northern Europe. – Scandinavian Journal of Forest Research, 27, 10–29.10.1080/02827581.2011.628949
- Välimäki, S., Heliövaara, K. 2007. Hybrid aspen is not preferred by the large poplar borer (Saperda carcharias). – Arthropod-Plant Interactions, 1, 205–211.
- Witt, C. 2010. Characteristics of aspen infected with heartrot: Implications for cavity-nesting birds. – Forest Ecology and Management, 260, 1010–1016.