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Degree Day Requirements for Bud Flushing in White Spruce--Variation and Inheritance

Early research (Nienstaedt and King, 1970) reported degree day requirements for selected clones of white spruce and heritability estimates based on the growth of progenies of some of the clones in growth rooms and the greenhouse. The following summarizes results with parental clones and their progenies during three additional seasons.


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Author(s): Hans Nienstadet

Publication: Tree Improvement and Genetics - Central States Forest Tree Improvement Conference - 1972