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Creator:: Keys, Steven Charles
Abstract:: Seedlings from 25 provenances of Abies grandis and Abies concolor were studied at two plantations, 12 at Philomath, Oregon, and 13 at Camino, California. Native seedlings were studied at four of the provenances' field sites. Stomatal infiltration pressure measurements and plant moisture stress measurements were made throughout one summer on...
Resource Type:: Masters Thesis
Full Text:: provenances. Provenance 20 seedlings are, therefore, recommended to be used as Christmas trees due to their

Creator:: Murray, Helene
Abstract:: A living mulch system consists of growing a regulated cover crop with an economic crop. Living mulches are often interplanted with horticultural crops, but competition for water can adversely affect crop production. Various management practices may limit the negative effects. Studies were conducted for two purposes: (1) to determine if...
Resource Type:: Masters Thesis
Full Text:: OF A PERENNIAL RYEGRASS LIVING Mjl/LCH IN CHRISTMAS-TREES / Abstract approved

Creator:: Montano, Jose M.
Resource Type:: Dissertation
Full Text:: Water Relations and Needle Abscission in Cut Trees of Douglas-fir (Pseudotsuga menziesii Mirb. Franco

Creator:: Calkin, James D.
Abstract:: The shake and wash technique (samples placed in a jar with alcohol added and shaken to remove the mites) was effective in removing 100% of the predator mites, and adult spruce spider mites from Douglas-fir foliage and 98% of the spruce spider mite nymphs. Eighty-eight percent of the spruce spider...
Resource Type:: Masters Thesis
Full Text:: (Pseudotsuga menziesii [Mirb] Franco) Christmas trees AN ABSTRACT OF THE THESIS OF James D. Calkin for the

ScholarsArchive@OSU