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Height Growth Performance of White Spruce Provenances in Central Maine

Height growth measurements were made in a range-wide geographic seed source test of white spruce on the Penobscot Experimental Forest, Bradley, Maine, after 10- and 15-growing seasons. After 15 years in the field, 14 of 24 seed-sources exceeded the plantation mean in height growth. Most of the fastest growing seed-sources are from the southeastern part of the range of white spruce. Trees from the more northern sources were poorly adapted to the planting site and had slow overall growth.

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Author(s): Ronald C. Wilkinson

Publication: Tree Improvement and Genetics - Northeastern Forest Tree Improvement Conference - 1977