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  1. 1
    Ponderosa pine saplings respond to control of spacing and understory vegetation /

    Government Document Book
  2. 2
    Pruning of ponderosa pine : effect on growth /

    Government Document Book
  3. 3
    Economics of thinning stagnated ponderosa pine sapling stands in the pine-grass areas of central Washington /
    by Sassaman, Robert W
    Published 1973

    Government Document Book
  4. 4
    Seed production of central Oregon ponderosa and lodgepole pines /
    by Dahms, Walter G, Dahms, Walter G
    Published 1975

    Government Document Book
  5. 5
    Spacing and understory vegetation affect growth of ponderosa pine saplings /

    Government Document Book
  6. 6
    Crop-tree thinning of ponderosa pine in the Pacific Northwest /

    Government Document Book
  7. 7
    Latest results from the Pringle Falls ponderosa pine spacing study /

    Government Document Book
  8. 8
    High yields from 100-year-old ponderosa pine /

    Government Document Book
  9. 9
    Dominant ponderosa pines do respond to thinning /

    Government Document Book
  10. 10
    A record of ponderosa pine seed flight /

    Government Document Book
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