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    Author(s): John K. Francis
    Date: 1985
    Source: Res. Note SO-314. New Orleans, LA: U.S. Department of Agriculture, Forest Service, Southern Forest Experiment Station. 4 p.
    Publication Series: Research Note (RN)
    Station: Southern Forest Experiment Station
    PDF: View PDF  (83 KB)

    Description

    The root biomass and its distribution and the growth rate of roots of pulpwood-size cottonwood (Popolus deltoides) in plantations were estimated by excavation and sampling. About 27 percent of the total biomass was in root tissue. Equations for predicting stump-taproot dry weight from d.b.h. and top dry weight were derived. Lateral roots in two plantations increased in length until dieback, and regrowth produced a lateral root of semistable average length to a little more than half the distance between trees.

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    Citation

    Francis, John K. 1985. The Roots of Plantation Cottonwood: Their Characteristics and Properties. Res. Note SO-314. New Orleans, LA: U.S. Department of Agriculture, Forest Service, Southern Forest Experiment Station. 4 p.

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    Keywords

    Populus deltoides, root competition, root biomass

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