Skip to Main Content
U.S. Forest Service
Caring for the land and serving people

United States Department of Agriculture

Home > Search > Publication Information

  1. Share via EmailShare on FacebookShare on LinkedInShare on Twitter
    Dislike this pubLike this pub
    Author(s): Dean S. DeBell; Constance A. Harrington
    Date: 1997
    Source: Canadian Journal of Forest Research. 27: 978-985
    Publication Series: Scientific Journal (JRNL)
    PDF: View PDF  (457 KB)

    Description

    Four Populus clones were grown at three spacings (0.5, 1.0, and 1.5 m) in monoclonal plots and in polyclonal plots with all clones in intimate mixture. After the third year, many individual tree and stand traits differed significantly by clone, spacing, deployment method, and their interactions. Differences among clones in growth and stem form were greater in polyclonal than in monoclonal plots, and differences in performance between deployment methods were greater in the denser spacings. Monoclonal stands had greater uniformity in tree size than polyclonal stands. Total aboveground oven-dry woody yield averaged 48.0 Mg.ha -1 in the 0.5-m spacing and decreased as spacing increased. Some clones differed in yield from other clones in both monoclonai and polyclonal plots. Assuming that equal numbers of plants from the same clones were planted, the manner of deployment did not affect productivity; that is, although there were clonal differences in yield, mean yield of the four clones in monoclonal plots (44.3 Mg.ha -I) did not differ from the yield of polyclonal plots (43.1 Mg.ha-1). Comparative yields (yield in polyclonal plots/yield in monoclonal plots) differed substantially, however, and the increases or decreases in comparative yield differed with spacing and clone. Production and inventory were less evenly balanced among clones with polyclonal than with monoclonal deployment.

    Publication Notes

    • You may send email to pnw_pnwpubs@fs.fed.us to request a hard copy of this publication.
    • (Please specify exactly which publication you are requesting and your mailing address.)
    • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    DeBell, Dean S.; Harrington, Constance A. 1997. Productivity of Populus in monoclonal and polyclonal blocks at three spacings. Canadian Journal of Forest Research. 27: 978-985

    Related Search


    XML: View XML
Show More
Show Fewer
Jump to Top of Page
https://www.fs.usda.gov/treesearch/pubs/20045