Genetic Variation Among Lake States Balsam Poplar Populations Is Associated with Geographic Origin
Abstract:Variation among populations of balsam poplar from Minnesota, Wisconsin, and Michigan (the Lake States) in tree height, phenology, and sylleptic branching was associated with geographic origin based on bivariate correlation, canonical correlation, principal component, and cluster analyses. Ninety percent of the joint variation in five traits was explained by two principal components, the first associated with late season growth and tree height, the second associated with number of sylleptic branches. Populations were delineated into northwestern, central, and southeastern clusters based on principal component one and two coordinates using Ward's minimum variance method. Populations from the south-eastern cluster grew taller, produced more late season leaves, and set bud later than populations from the northwestern and central dusters. FOR. SCI. 39(1):130-136.
Document Type: Journal Article
Affiliations: Formerly Biological Technician, USDA Forest Service, North Central Forest Experiment Station, Rhinelander, WI (current address is Department of Forestry, Iowa State University, Ames, IA 50100)
Publication date: 1993-02-01
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