Bud monoterpene composition in Pinus brutia (Ten.), Pinus halepensis (Mill.) and their hybrids
1998
Gallis, A.T. | Lang, K.J. | Panetsos, K.P.
Bud terpene composition was determined by headspace gas chromatography in Pinus halepensis (MILL.), Pinus brutia (TEN.) and Fl hybrids between the two species (59 trees). The object was to explore the utility of bud monoterpenes in studying hybridization between the two species. Sixteen components were detected in the bud resin of all the trees, twelve of which identified. No qualitative differences were found in bud terpene composition between the species and the hybrids. Pinushalepensis trees had much more cc-pinene, myrcene and alpha-phellandrene whereas Pinus brutia had higher amounts of a-pinene and 3-delta- carene. In buds of Fl hybrids the composition was more or less intermediate for most of the components except the 3- delta-carene which was found to occur in higher amounts than in parental species. A comparison between bud and cortical oleoresin of the same trees revealed several qualitative and quantitative differences.
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