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Creator:: Kokkinakis, Steven Andon
Resource Type:: Masters Thesis
Full Text:: : Patricia A. Wheeler Uptake of NO3, NH4+, and urea was measured using tracers during the July 1985

Creator:: Mao, Meiyu
Abstract:: Agrobacterium rhizogenes has been shown to cause root proliferation and increased water use efficiency in certain woody dicots. Root proliferation may be desirable in herbaceous legumes as a means of increasing potential sites for infection by Rhizobium species and subsequent nodulation and nitrogen fixation. Thus, A. rhizogenes was used to...
Resource Type:: Masters Thesis
Full Text:: - ficant on the last two to three sampling dates as leaf loss occurred in the control plants. Wheeler

Creator:: Kim, Dong Yeob
Abstract:: Two case studies of 5 ecosystems were used to examine the nitrogen fixation rate of red alder (Alnus rubra Bong.), varnishleaf (Ceanothus velutinus var. laevigatus (Hook.) T. & G.), deerbrush (C. i ntegerrimus H. & A.), and snowbrush (C. velutinus var. velutinus Dougl. Ex Hook). The first case study assayed...
Resource Type:: Masters Thesis
Full Text:: support I have received from the Forest Science faculty, staff, and students, especially Barbara J. Yoder

Creator:: Dalton, David Andrews
Abstract:: This study examines several aspects of nitrogen fixation by Purshia tridentata (Pursh) D. C., a rosaceous shrub widespread in the central Oregon pumice region, especially as an understory species in Pinus ponderosa and Pinus contorta forests. Anatomical studies of root nodules under the light microscope revealed strong similarities to other...
Resource Type:: Masters Thesis
Full Text:: thesis is presented Ca, 'J 117 C Typed by Susie Kozlik for David Andrews Dalton ACKNOWLEDGEMENTS I

Creator:: Antoine, Marie E.
Abstract:: This thesis consists of three manuscripts describing ecophysiological research on the cyanolichen Lobaria oregana. The first manuscript includes a re-evaluation of the assumptions underlying past estimates of N fixation by this species and provides an estimate of annual N fixation at the Wind River Canopy Crane (WRCC). Based upon litterfall...
Resource Type:: Masters Thesis
Full Text:: hydrated thalli. The model is used to predict annual N fixation at the WRCC and at the H. J. Andrews (HJA

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