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Title: Geographic variation in shortleaf pine (Pinus echinata Mill.) - cortical monoterpenes

Author: Schmidtling, R.C.; Myszewski, J.H.; McDaniel, C.E.;

Date: 2005

Source: In: Proceedings: 28th Southern Forest Tree Improvement Conference: June 21-23, 2005. Raleigh, NC: North Carolina State University, Department of Forestry and Environmental Resources, 2005: 161-167

Publication Series: Miscellaneous Publication

Description: Cortical monoterpenes were assayed in bud tissue from 16 Southwide Southern Pine Seed Source Study (SSPSS) sources and from 6 seed orchard sources fiom across the natural range of the species, to examine geogaphic variation in shortleaf pine. Spruce pine and pond pine were also sampled. The results show geographic differences in all of the major terpenes. There was no north-south trend in any of the terpenes, but there was clinal variation in alpha pinene fiom west to east. One source, from New Jersey (SSPSSS) had very low alpha pinene and did not fit the trend, possibly because of hybridization with pitch pine. Some of the western sources had high limonene content, probably as a result of hybridization with loblolly pine, which has high limonene in western populations. Spruce pine had terpene levels similar to shortleaf pine, while pond pine had low alpha pinene and much higher limonene compared to shortleaf pine.

Keywords: Shortleaf pine, Pinus echinata Mill., loblolly pine, Pinus taeda L., pond pine, Pinus serotina Michx., spruce pine, Pinus glabra Walt., terpenes, geographic variation, hybridization

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Schmidtling, R.C.; Myszewski, J.H.; McDaniel, C.E. 2005. Geographic variation in shortleaf pine (Pinus echinata Mill.) - cortical monoterpenes. In: Proceedings: 28th Southern Forest Tree Improvement Conference: June 21-23, 2005. Raleigh, NC: North Carolina State University, Department of Forestry and Environmental Resources, 2005: 161-167

 


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