Survival and Growth of Ponderosa Pine and Douglas-Fir Stocktypes on a Dry Low-Elevation Site in Southwest Oregon

Authors: Helgerson, Ole T.¹; Tesch, Steven D.¹; Hobbs, Stephen D.¹; McNabb, D. H.¹

Source: Western Journal of Applied Forestry, Volume 4, Number 4, 1 October 1989 , pp. 124-128(5)

Publisher: Society of American Foresters

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Abstract:

Two stocktypes (1 + 0 container-grown plugs and 2 + 0 nursery grown bareroots) of ponderosa pine (Pinus ponderosa) and of Douglas-Fir (Pseudotsuga menziesii) were planted on a hot, droughty, low-elevation site in southwest Oregon (Interior Valley Zone) to assess the potential for reforesting this type of site. After five growing seasons, bareroots survived (98%) significantly (P < 0.05) better than plugs (89%); survival did not differ significantly by species. Douglas-fir was taller than pine, pine was larger in diameter, and the two species had approximately equal stem volumes. Bareroots were consistently larger than plugs. These species and stocktypes can provide good reforestation after 5 years on an Interior Valley Zone site when seedlings are of good quality, are planted properly, and are given good weed control. West. J. Appl. For. 4(4):124-128, October 1989.

Document Type: Journal article

Affiliations: 1: Department of Forest Engineering, College of Forestry, Oregon State University, Corvallis 97331

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