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Four-year Performance of Populus Deltoides Bartr. and Some of Its Hybrids in Northwestern Ontario

R. E. FarmerCatherine Lynn PalmerG. J. O'ReillyNorthern Forestry Program (Canada)

出版	Great Lakes Forestry Centre, 1994
ISBN	06622074679780662207467
URL	http://books.google.com.hk/books?id=y0GTANvAQTUC&hl=&source=gbs_api

註釋Cold-hardy, disease resistant poplars that can outperform aspen for volume growth have the potential to broaden the variety of planting stock available to boreal forest managers. Moving selected eastern cottonwood from the north-central edge of its range to appropriate boreal sites and hybridizing these adapted selections with selected balsam poplar might offer further opportunity for simultaneously increasing hardiness and growth. Five clones 3uitable for pilot-scale use at latitudes of up to 49 degrees north in Ontario were identified via tests. This study evaluates the hardiness, disease susceptibility, and juvenile growth of 76 clones selected for their potential in the north. It also examines relationships between early morphological growth and growth characteristics that might be useful in early selection.