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Filtering by: Alternative title ssim PNW 116 Remove constraint Alternative title ssim: PNW 116 Committee Member Doescher, Paul Remove constraint Committee Member: Doescher, Paul Subject Douglas fir -- Oregon -- Growth Remove constraint Subject: Douglas fir -- Oregon -- Growth

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  • Growth responses of Douglas-fir (Pseudotsuga menziesii [Mirb.] Franco) to defoliation

    Creator:
    Osman, Khalid Amir
    Abstract:
    The effect of defoliation intensity and season on Douglas-fir growth were studied in three replications in the Siuslaw National Forest during 1988-1990. Four intensities of defoliation were applied once in either spring or summer 1988. Stem diameter and canopy area were linearly inversely proportional to the level of defoliation. Defoliation...
    Resource Type:
    Dissertation
    Full Text:
    116 3-9. Effects of Defoliation Intensity and Season on Average Width of Douglas-fir Subdominant