Northern Idaho ponderosa racial variation study - 50-year results

R. J. Steinhoff

Treesearch

Northern Idaho ponderosa racial variation study - 50-year results

Informally Refereed

Authors:

R. J. Steinhoff

Year:

1970

Type:

Research Note

Station:

Rocky Mountain Research Station

Source:

Res. Note INT-RN-118. Ogden, UT: U.S. Department of Agriculture, Forest Service, Intermountain Forest and Range Experiment Station. 4 p.

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Download (PDF 301 KB): https://research.fs.usda.gov/download/treesearch/49031.pdf

Abstract

Ponderosa pine trees from 19 geographic sources planted on a test area in northern Idaho have been measured 12, 20, 40, and 50 years after outplanting. From the 12th through the 50th years after outplanting, trees from one nonlocal source have been tallest. Trees from the local source now rank second in height, having risen from sixth during the last 10 years. In general, trees from sources close to the test area have performed better than those from more distant sources.

Keywords

ponderosa pine, outplanting, growth

Citation

Steinhoff, R. J. 1970. Northern Idaho ponderosa racial variation study - 50-year results. Res. Note INT-RN-118. Ogden, UT: U.S. Department of Agriculture, Forest Service, Intermountain Forest and Range Experiment Station. 4 p.