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Jack Pine Provenance Study in Eastern Nebraska

A 9-year provenance test indicated that height, form, cone production, and needle length of southern origins exceeded northern origins. Foliage color during winter was yellow green on northern origins but green on southern origins. Fast-growing origins developed dense, compact, well-shaped crowns because of the multinodal growth characteristic of jack pine. A Petawawa, Ontario origin, of rapid growth and superior form, is recommended for plantings in Nebraska. Key Words : Pinus banksiana , provenances, tree form, windbreaks.


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Author(s): John A . Sprackling, Ralph A. Read

Publication: Tree Improvement and Genetics - Central States Forest Tree Improvement Conference - 1974