Xylem Monoterpenes of Some Hard Pines of Western North America: Three Studies

摘要

Monoterpene composition was studied in a number of hard pine species and results were compared with earlier work. (1) Intratree measurements showed strong constancy of composition in both single-stemmed and forked trees of ponderosa, Jeffery, Coulter, and Jeffrey x ponderosa pines. In grafts of these and other pines, the scion influenced the root stock, but not the reverse. Short-column chromatographic analysis is acceptably accurate for rapid classification of a large number of samples.