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Local adaptation and the evolution of phenotypic plasticity may facilitate biological invasions. Both processes can enhance germination and seedling recruitment, which are crucial life‐history traits for plants. The rate, timing and speed of germination have recently been documented as playing a major role during the invasion process. Black locust (Robinia pseudoacacia L.) is a North American tree,...
Scots pine is the main forest tree species in Poland. In this study we investigated variation in growth among 20 populations at two common−garden sites of the IUFRO 1982 provenance experimental series after 35 years of growth. The sites managed by the Forest Research Institute are located in Wyszków and Sękocin (central Poland). Populations show great diversity in the productivity and stem straightness...
The use of biomass for energy purposes is an important European Union policy. In light of the restrictions concerning the use of the full−value wood from forests for energy purposes, short rotation forestry can become an alternative source of woody biomass. In this context, the most promising species is poplar (Populus spp.), productivity of which depends on various aspects such as plant spacing,...
Within the framework of work on the anatomical structure and durability features of wood, as well as analyses of radial growth, a preliminary analysis was carried out in regard to variation in the heartwood within Black locust trees. The research was carried out in three stands of straight-stemmed trees in western Poland. The variation displayed by the heartwood around its circumference and the eccentricity...
The black locust (Robinia pseudoacacia L.) has been present in Poland for more than 200 years now, its range coming to encompass the entire country, albeit with a particular concentration of occurrence in the west. Overall, it is present in 3.4% of the stands making up Poland’s “State Forests National Forest Holding” (Państwowe Gospodarstwo Leśne Lasy Państwowe), and is the dominant species in 0.1%...
Within the framework of work on the anatomical structure and durability features of wood, as well as analyses of radial growth, a preliminary analysis was carried out in regard to variation in the heartwood within Black locust trees. The research was carried out in three stands of straight-stemmed trees in western Poland. The variation displayed by the heartwood around its circumference and the eccentricity...
An automatic fibre size analyser - KajaaniFiberLab was used in studies designed to examine and analyse the genetic basis of fibre size variability. Fast and accurate measurement in accordance with the standards may, however, give incorrect results due to errors associated with the multi-staged maceration of wood samples to obtain disintegrated fibre water suspension. Errors in fibre size estimation...
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