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51	An ecological study of a disjunct Ponderosa pine forest in the northern Great Basin in Oregon / Berry, Dick Wallace, January 1963 (has links) Thesis (Ph. D.)--Oregon State University, 1963. / Typescript. Includes bibliographical references (leaves 255-268). Also available on the World Wide Web.
52	Inner bark utilization : a Nez Perce example / Churchill, Thomas E. January 1983 (has links) Thesis (M.A.)--Oregon State University, 1984. / Typescript (photocopy). Includes bibliographical references (leaves 98-103). Also available on the World Wide Web.
53	Ethylene Production By Different Age Class Ponderosa and Jeffery Pine Needles as Related to Ozone Exposure and Visible Injury Telewski, Frank W. January 1992 (has links) Author's manuscript for published article. See Additional Links field for link to published version. / Ethylene production by different needle age classes was characterized using a mercuric perchlorate traps in natural populations of two ponderosa pine varieties (Pinus ponderosa var. arizonica [Engelm] Shaw and var. ponderosa Dougl. ex Laws.) and Jeffery pine (Pinus leffrevi Grev. and Balf.). All ozone -exposed populations contained individuals which were symptomatic and asymptomatic with respect to visible ozone injury. Ethylene production of different needle age classes was also characterized in Pinus ponderosa var. ponderosa seedlings grown in open top ozone fumigation chambers. Older age class needles produce more ethylene than younger age class needles. Needles of both P. ponderosa var. ponderosa and P. jeffreyi exhibiting ozone injury in the field produced significantly (p >0.05) higher levels of ethylene than asymptomatic conspecifics. Seedlings exposed to highest treatment level of ozone in the fumigation study produced the highest levels of ethylene followed by fumigation with medium and low ozone concentrations and carbon filtered air. These data indicate that measurement of ethylene in conifer needles as a measure of stress needs to be calibrated for needle age class. It also suggests that the sensitivity of a tree to ozone injury may be regulated by the inherent ability of the individual to produce ethylene. Ethylene production Ozone Pinus jeffreyi Pinus ponderosa
54	Contribution of Abert squirrel to nutrient transfer through litterfall in ponderosa pine ecosystem Skinner, Thomas Harvey, 1946- January 1976 (has links) No description available. Abert's squirrel. Ponderosa pine. Forest litter.
55	An evaluation of southern ponderosa pine for mining uses Patchet, Stanley John, 1943- January 1966 (has links) No description available. Ponderosa pine. Shoring and underpinning. Mine timbering.
56	The effects of shading and planting depth treatments on the germination and survival of ponderosa pine Berglund, Erwin R. January 1967 (has links) No description available. Ponderosa pine -- Growth. Yellow pines. Forests and forestry.
57	Regeneration of ponderosa pine: fire-nutrient influences Kitchen, Joseph Henry, 1934- January 1966 (has links) No description available. Ponderosa pine -- Growth. Fire ecology. Forest management.
58	Snowfall interception in Arizona ponderosa pine forests Tennyson, Larry Charles, January 1973 (has links) (PDF) Thesis (M.S. - Watershed Management)--University of Arizona. / Includes bibliographical references.
59	Comparison of soil water regimes under natural, thinned, and clearcut stands of ponderosa pine in the White Mountains of Arizona Russell, William Lee, January 1967 (has links) (PDF) Thesis (M.S.- Watershed Management)--University of Arizona. / Includes bibliographical references (leaves 72-75).
60	GIS analyses of paleo-fire regimes in ponderosa pine (Pinus ponderosa) forests extending spatial approaches in ecological interpretation / Kernan, James T. January 2009 (has links) Thesis (Ph. D.)--West Virginia University, 2009. / Title from document title page. Document formatted into pages; contains xii, 174 p. : ill. (some col.), col. maps. Includes abstract. Includes bibliographical references.

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