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Studies of phenotypic variation in monoterpene composition of longleaf pine indicated that α- and -pinene were the major components. Samples from three geographic regions indicated no regional differences, but large differences were found among individual trees and among basal stem-xylem, cortical, and needle oleoresins. Genetic analysis of cortical monoterpene composition, based on results of a 13-tree half-diallel mating design, showed that over half of the total genetic variance and slightly less than half of the phenotypic variance was of the additive genetic type. Forest Sci. 17:178-179.
Principal Plant Geneticist, Southern Institute of Forest Genetics, Southern Forest Exp. Sta., Gulfport, Mississippi
Publication date: June 1, 1971
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Forest Science is a peer-reviewed journal publishing fundamental and applied research that explores all aspects of natural and social sciences as they apply to the function and management of the forested ecosystems of the world. Topics include silviculture, forest management, biometrics, economics, entomology & pathology, fire & fuels management, forest ecology, genetics & tree improvement, geospatial technologies, harvesting & utilization, landscape ecology, operations research, forest policy, physiology, recreation, social sciences, soils & hydrology, and wildlife management.