Title: Genetic variation in rootability of cuttings from one-year-old western hemlock seedlings.
Author: Sorensen, Frank C.; Campbell, Robert K.;
Source: Res. Note PNW-RN-352. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 8 p
Publication Series: Research Note (RN)
Description: One-year-old western hemlock (Tsuga heterophylla (Raf.) Sarg.) seedlings from three open-pollination families from eight locations in the Washington and Oregon Coast Ranges were cultured under accelerated growth conditions in a glasshouse. Forty cuttings from each of five seedlings (open-pollination siblings) per family were then placed in a rooting box in a randomized block design with five replications. Percentages of cuttings rooted after 1 year in the bed were analyzed in a hierarchal design.
Average rooting percentage was 72.4 percent. Significant effects were associated only with replication, siblings-in-families-in-provenances (S/F/P), and with the interaction, S/F/P x replication. The last two together accounted for 73 percent of the variance.
The results indicated that additive genetic effects were not important to rooting success, but that dominance and unique clone-effects probably were.
Keywords: Heritability, provenance, genetic traits, rooting ability, western hemlock, Tsuga heterophylla
- 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 email@example.com to request a hard copy of this publication. (Please specify exactly
which publication you are requesting and your mailing address.)
XML: View XML
Sorensen, Frank C.; Campbell, Robert K. 1980. Genetic variation in rootability of cuttings from one-year-old western hemlock seedlings. Res. Note PNW-RN-352. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 8 p
Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility