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Title: Northern Idaho ponderosa racial variation study - 50-year results
Author: Steinhoff, R. J.;
Source: Res. Note INT-RN-118. Ogden, UT: U.S. Department of Agriculture, Forest Service, Intermountain Forest and Range Experiment Station. 4 p.
Publication Series: Research Note (RN)
Description: 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
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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.
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