Effect of provenance on the volume increment of grand fir (Abies grandis Lindl.) under mountain conditions of Poland

https://doi.org/10.17221/794-JFSCitation:Kulej M., Socha J. (2008): Effect of provenance on the volume increment of grand fir (Abies grandis Lindl.) under mountain conditions of Poland. J. For. Sci., 54: 1-8.
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The purpose of this study was to assess the volume increment diversification of selected provenances of grand fir growing under mountain conditions of Poland. The mean increment was determined on the basis of volume reached by the respective provenances when trees were 30 years old while the current increment was calculated from a difference between the volume when trees were 30 years old and the volume when they were 26 years old. It was found that the productive (increment) potential of tested grand fir partial populations is determined by the genotype (provenance). Among the tested provenances grand fir from Salmon River on Vancouver Island in Canada is characterized by the greatest productive capacity.
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