Variation in the Monoterpene Composition of Two Oleoresin Systems of Loblolly Pine
The monoterpene composition of stem xylem and branch cortex oleoresins of loblolly pine was examined. Seasonal and annual changes in the monoterpenes of both oleoresins showed that comparative studies should be conducted during a short time period. Within-tree variation was substantial for the stem xylem monoterpenes of 11-year-old trees. The branch cortex monoterpenes of six-year-old trees showed negligible within-tree variation. Cortex oleoresin in 14-month-old seedlings had monoterpene concentrations more similar to those of mature trees than did the oleoresin of nine-month-old seedlings. Among-tree variation was considerable for all monoterpenes, with the heritabilities of the monoterpenes ranging widely. Simple inheritance was demonstrated for branch cortex myrcene and limonene. Forest Sci. 19:147-153.
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Document Type: Journal Article
Affiliations: Research Associate, Forest Physiology-Genetics Lab, University of Florida, Gainesville, Florida 32601
Publication date: 1973-06-01
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