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Inheritance of Resin Acids in an Interspecific White Pine Cross

Hybrids between eastern white pine (Pinus strobus) and Himalayan white pine (P. griffithii) tended to resemble P. strobus (female parent) in resin acid composition of cortex and needles. The hybrids contained a high proportion of strobic acid in their cortical resins and the resins crystallized readily in the weevil larva-crystallization test. Lambertianic acid accounted for about 90% of the needle resin acids in P. griffithii, but was present in only trace amounts in the hybrids, where anticopalic acid was predominant, accompanied by a significant proportion of 3-keto-anticopalic acid and smaller amounts of strobic acid.


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Author(s): Frank S. Santamour, Jr., Duane F. Zinkel

Publication: Tree Improvement and Genetics - Northeastern Forest Tree Improvement Conference - 1975