Index Catalog // ScholarsArchive@OSU

Effect of N and P fertilizers on growth, nitrate reductase activity, seed production and seed quality of snap bean (Phaseolus vulgaris L.)

Creator:: Sader, Rubens
Resource Type:: Dissertation
Full Text:: : EFFECT OF N AND P FERTILIZERS ON NITRATE REDUCTASE ACTIVITY AND NITRATE CONTENT OF SNAP BEAN

Wheat genotypes selected under optimum conditions and their response to water and heat stress

Creator:: Briceno-Felix, Guillermo Ariel
Abstract:: Concerns have been expressed that wheat (Triticum aestivum L.) cultivars selected under optimum conditions may lack adequate adaptation for stress environments. Experimental populations were grown under three environmental conditions 1) optimum, 2) reduced irrigation, and 3) high temperature. Field experiments were conducted at the Center for Northwest Experimental Station (CIANO),...
Resource Type:: Dissertation
Full Text:: and kernels per spikelet canceled out the large direct effect of kernel weight on grain yield. He

Spring establishment of orchardgrass and tall fescue seed crops with cereal companion crops

Creator:: Chastain, Thomas G.
Abstract:: Orchardgrass and tall fescue seed crops are commonly springplanted in Oregon, but do not produce a marketable crop during the first growing season. Establishing orchardgrass and tall fescue with cereal companion crops would provide income during the seeding year and could increase seed production profits. This study was conducted to...
Resource Type:: Dissertation
Full Text:: establish orchardgrass seed crops. 29 1.2 Effect of cereal companion crops on photosynthetic photon flux

Differential sensitivity of Italian ryegrass and rice cultivars to fenoxaprop

Creator:: Hassan, Gul
Resource Type:: Dissertation
Full Text:: -stages (Whole plant Expt. 3) 56 2.6b Main effect of cultivar on fresh and dry-weight at two growth

The effect of preplant nitrogen fertilization and soil temperature on biological nitrogen fixation and yield of alfalfa (Medicago sativa L.)

Creator:: Shuler, Philip E.
Abstract:: The usefulness of preplant nitrogen (N) in establishing alfalfa in colder production areas has not been well characterized. This study was conducted to determine the effect of preplant N and soil temperature on yield, percent N derived from biological nitrogen fixation (PBNF), and shoot N concentration in alfalfa (Medicago sativa...
Resource Type:: Dissertation
Full Text:: , 1991. Title: The Effect of Preplant Nitrogen Fertilization and Soil Temperature on Biological

Modeling the temperature-mediated phenological development of alfalfa (Medicago sativa L.)

Creator:: Ben-Younes, Mongi, 1953-
Resource Type:: Dissertation
Full Text:: respectively. Combined analysis of variance indicated that temperature had a highly signifi- cant effect on

Sweet corn (Zea mays L.) production in a white clover (Trifolium repens L.) living mulch : the establishment year

Creator:: Cooper, Alan S.
Abstract:: Oregon sweet corn growers face high fertilizer, fuel and weed control costs; soil compaction, erosion, organic matter and nutrient depletion; and difficult equipment operations in muddy fields. An alternative production system might ease some of these problems. Testing was begun to evaluate a living-mulch cropping system for sweet corn (Zea...
Resource Type:: Masters Thesis
Full Text:: were begun in the fall of 1982 to assess the effect of this cropping system on: weed populations, soil

Performance of cultivars, hybrids and composites of winter wheat (Triticum aestivum L. em Thell) grown at three locations

Creator:: Verges, Ruben P.
Abstract:: The objective of this study was to compare three genetically different groups of winter wheat for their grain yield. Experimental material consisted of parental lines grown in pure stands, hybrids, and 1:1 mixtures of the parental combinations. Three sites were employed to evaluate possible interactions between the different groups across...
Resource Type:: Masters Thesis
Full Text:: . Studying the effect of planting rate and genotypic frequency on yield and seed size, Chapman et al. (1969

Jointed goatgrass : outcrossing, competition with winter wheat, and response to timing and rate of imazamox

Creator:: Cannon, Joshua B.
Abstract:: Jointed goatgrass (Aegilops cylindrica Host.) is a serious weed problem in wheat (Triticum aestivum L.) production in the United States. Studies were conducted to determine the outcrossing rate, competitive ability, and effectiveness of certain control practices on jointed goatgrass. A field study was conducted over two years at four locations...
Resource Type:: Masters Thesis
Full Text:: conducted to determine the effect of rate and timing of imazamox application on jointed goatgrass and

Effect of nitrogen and water stresses during tillering and grain- filling in wheat

Creator:: Ashraf, Muhammad, 1952-
Abstract:: The CERES-Wheat Crop Growth and Development model treats temperature, nitrogen and water stresses as limiting factors. For each day the model calculates a stress index for temperature, N and water, compares the magnitude of the indices, and then adjusts the calculated daily potential growth using the index of the most...
Resource Type:: Dissertation
Full Text:: Philosophy in Crop and Soil Science presented on September 11. 1992 Title: Effect of Nitrogen and Water

ScholarsArchive@OSU

Effect of N and P fertilizers on growth, nitrate reductase activity, seed production and seed quality of snap bean (Phaseolus vulgaris L.)

Wheat genotypes selected under optimum conditions and their response to water and heat stress

Spring establishment of orchardgrass and tall fescue seed crops with cereal companion crops

Differential sensitivity of Italian ryegrass and rice cultivars to fenoxaprop

The effect of preplant nitrogen fertilization and soil temperature on biological nitrogen fixation and yield of alfalfa (Medicago sativa L.)

Modeling the temperature-mediated phenological development of alfalfa (Medicago sativa L.)

Sweet corn (Zea mays L.) production in a white clover (Trifolium repens L.) living mulch : the establishment year

Performance of cultivars, hybrids and composites of winter wheat (Triticum aestivum L. em Thell) grown at three locations

Jointed goatgrass : outcrossing, competition with winter wheat, and response to timing and rate of imazamox

Effect of nitrogen and water stresses during tillering and grain- filling in wheat

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