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    Author(s): James R. Griffin; M. Thompson. Conkle
    Date: 1967
    Source: Res. Note PSW-RN-156. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station. 10 p
    Publication Series: Research Note (RN)
    Station: Pacific Southwest Research Station
    PDF: View PDF  (4.94 MB)

    Description

    Three plantations of knobcone X Monterey pine hybrids were established on marginal timber sites at elevations of 671 m.(2,200 ft.) to 991 m. (3,200 ft.) in northern California in 1964. After 3 years, the hybrids appear more promising than either parent species. Damage from snow and windthrow suggests high risk of storm damage to hybrids planted at higher elevations.

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    Citation

    Griffin, James R.; Conkle, M. Thompson. 1967. Early Performance of Knobcone x Monterey Pine Hybrids...on marginal timber sites. Res. Note PSW-RN-156. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station. 10 p.

    Keywords

    Monterey pine, knobcone pine, P. attenuata X P. radiata, hybrid seedling performance, low quality timber sites, plantations, California, storm damage, insect and disease resistance

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