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Effects of Age of Ortet, Time of Cutting Collection and Genotype on Rooting Black Spruce Cuttings

Results of three stem cutting propagation experiments indicate that the rooting response in black spruce ( Picea mariana (Mill.) B.S.P.) is genetically variable at the individual tree level and the response declines significantly between ortet ages 3 and 7 years. Time-of-cutting collection also effects the rooting response, but to a lesser degree.


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Author(s): C. Dana Nelson, Carl A. Mohn

Publication: Tree Improvement and Genetics - North Central Tree Improvement Conference - 1989