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Publication Information

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Title: Self-fertility of a central Oregon source of ponderosa pine.

Author: Sorensen, Frank C.;

Date: 1970

Source: Res. Pap. PNW-RP-109. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 12 p

Publication Series: Research Paper (RP)

Description: This report will describe the effect of self-, cross-, and open- or wind-pollination on seed and seedling production of 19 ponderosa pine (Pinus ponderosa Laws.) trees in the eastern foothills of the Cascade Mountains south of Bend, Oreg. The study is part of a continuing investigation of self-fertility in several conifers growing in the Pacific Northwest to evaluate the effect of inbreeding on fertility and vigor and to provide information which may be useful in regeneration and tree improvement programs in these species.

Publication Notes:

  • 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.
  • 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.)

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Citation:


Sorensen, Frank C. 1970. Self-fertility of a central Oregon source of ponderosa pine. Res. Pap. PNW-RP-109. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 12 p

 


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