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Germinant Size of Jack Pine in Relation to Seed Size and Geographic Origin

This paper reports measurements of seed and germinants (seedlings at the full cotyledon stage) of 87 jack pine (Pinus banksiana Lamb.) provenances that included the full range of the species, from the northeastern coast of North America to the Mackenzie river valley in northwestern Canada. Seed weight, seed volume, hypocotyl length, cotyledon length, and cotyledon number were recorded to determine the relative effects of seed weight and seed origin on germinant size. The seed collections were organized by M. J. Holst, Department of Forestry of Canada, and seed and seedlings have been widely distributed for experimental use in Canada, the United States, and abroad. The results presented here are part of a larger study of the growth of jack pine seedlings in relation to provenance and environment of culture (Yeatman 1964).


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Author(s): C. W. Yeatman

Publication: Tree Improvement and Genetics - Lake States Forest Tree Improvement Conference - 1965