Index Catalog // ScholarsArchive@OSU

Effects of tillage-induced soil compaction on carrot seedlings emergence and yield

Creator:: Thomasson, James E.
Abstract:: The effects of five tillage treatments on soil bulk density and mechanical impedance were examined on Newburg sandy loam soil in the Willamette Valley, Oregon, in 1987. Subsequent effects on seedling emergence and yield of carrots (Daucus carota L., cvs. Orlando Gold and Royal Chantenay) were also measured. Mechanical impedance...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF James E. Thomasson for the degree

Nitrogen dynamics in field grown comice pears

Creator:: Sanchez, Enrique E.
Abstract:: The dynamics of N was studied in field grown Comice/Provence quince BA29 pears in Medford, Oregon. Total tree biomass, N content, and ¹⁵N evaluations suggest that young pears require little N (48 kg N ha⁻¹ yr⁻¹). About 45% of total tree N present in dormant trees was remobilized into new...
Resource Type:: Dissertation
Full Text:: E. Sanchez and Viki Freeman Typed by DEDICATION This thesis is dedicated to my children

Effect of row cover and supplemental Ca fertilization on blossom-end rot in bell pepper (Capsicum annuum var. annuum, Grossom Group)

Creator:: Alexander, Shara E.
Abstract:: A 2-year trial was conducted at Oregon State University's Hermiston Agricultural Research and Extension Center to examine the effects of spunbonded row cover and supplemental calcium fertilization on blossom-end rot in two varieties of bell pepper. Blossom-end rot is a common cause of bell pepper yield losses, especially at the...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Shara E. Alexander for the degree

Effect of boron on seven vegetable crops grown on two soil types

Creator:: Oneida, Kelly Ann
Abstract:: Boron deficiency or toxicity can reduce yield and quality of vegetables. Seven vegetable crops, varying from low to high boron requirements were grown in field plots at Corvallis in 1987. Leaf-B and yield components of green bean, cucumber, potato, carrot, tomato, broccoli and table beet were examined under conditions of...
Resource Type:: Masters Thesis
Full Text:: levels of .39 mg/kg and .20 mg/kg in the top 23 cm of soil in the silty clay loam and sandy loam soil

Inheritance of resistance to Fusarium root rot in Phaseolus vulgaris L., and Phaseolus coccineus L.

Creator:: Azzam, Hassan Ahmed
Abstract:: Progenies of two bean crosses were studied for inheritance of resistance to dry root rot caused by Fusarium solani f. phaseoli. O.S.C. 22 (P. vulgaris) was used in both crosses as the susceptible parent. A Mexican line (P. vulgaris) and a line 2014 of the runner bean (P. coccineus) were...
Resource Type:: Dissertation
Full Text:: ' ' if " J -,»^.)..t--i.i.. Professor of Plant Pathology (in e&a&ge of the %-he3is) ■ r^ n i

Soil Water Tension Irrigation Criteria Affects Both Stevia Rebaudiana Leaf Yield and Leaf Steviol Glycoside Composition

Creator:: Parris, Cheryl A.
Abstract:: Stevia (Stevia rebaudiana) is a perennial herbaceous plant native to Paraguay and used traditionally by the native Guarani peoples for centuries to sweeten medicinal teas. Stevia has only been commercially cultivated over the past 50 years and cultural practice information suitable for implementation by growers is limited. Currently stevia’s commercial...
Resource Type:: Masters Thesis
Full Text:: wetter marshlands and drier vegetated areas (Shock 1982a, 1982b). The acidic sandy soil is relatively

Evaluating Alternative Soil Amendments for Organic Northern Highbush Blueberry Cultivation in Sub-Optimal Soils

Creator:: Retano, Andrea
Abstract:: Escalating demand for organic blueberries has driven a significant expansion of northern highbush blueberry (NHB; Vaccinium corymbosum L.) production area. This expansion is particularly pronounced in regions of the Pacific Northwest where native soil conditions are sub-optimal for NHB, notably east of the Cascade Mountain Range of Oregon and Washington,...
Resource Type:: Masters Thesis
Full Text:: Oregon and Washington, commonly called the Columbia Basin, is characterized by calcareous sandy soils

The inheritance of axillary heading in cabbage, Brassica oleracea var. capitata L. and its response to plant spacing, fertilizer and transplanting

Creator:: Akratanakul, Wanee
Resource Type:: Dissertation
Full Text:: would like to express my sincere appreciation to Dr. H. J. Mack, Dr. W. E. Kronstad, Dr

The performance of N-(1,1-dimethylpropynyl)-3,5-dichlorobenzamide and other herbicides in controlling weeds in lettuce as affected by soil type and weather conditions

Creator:: Mitidieri, Agustin
Abstract:: Chemicals are being sought that can control weeds in lettuce under different environmental conditions, soil types and weed populations. The extensive or repeated use of a herbicide may lead to important changes in the weed population which call for new materials that can take care of the modified situation. In...
Resource Type:: Masters Thesis
Full Text:: 315. The tolerance was greater in a silty clay loam and a muck soil than in a sandy soil

Influence of canopy orientation on fruiting of 'Ànjou' pears and postharvest urea spray on ovule longevity and fruit set of 'C̀omice' pears

Creator:: Khemira, Habib
Abstract:: The effect of canopy orientation on fruiting performance of 'Beurre d'Anjou' pears (Pyrus communis L.) and postharvest urea spray on ovule longevity and fruit set of 'Doyenne du Comice' pears were studied. Hedgerows of 'Beurre d'Anjou' pear trees planted in 1969 in two orientations north-south (N-S) and east-west (E-W) were...
Resource Type:: Masters Thesis
Full Text:: d'Anjou' pear trees planted in 1969 in two orientations north-south (N-S) and east-west (E-W) were used

ScholarsArchive@OSU

Effects of tillage-induced soil compaction on carrot seedlings emergence and yield

Nitrogen dynamics in field grown comice pears

Effect of row cover and supplemental Ca fertilization on blossom-end rot in bell pepper (Capsicum annuum var. annuum, Grossom Group)

Effect of boron on seven vegetable crops grown on two soil types

Inheritance of resistance to Fusarium root rot in Phaseolus vulgaris L., and Phaseolus coccineus L.

Soil Water Tension Irrigation Criteria Affects Both Stevia Rebaudiana Leaf Yield and Leaf Steviol Glycoside Composition

Evaluating Alternative Soil Amendments for Organic Northern Highbush Blueberry Cultivation in Sub-Optimal Soils

The inheritance of axillary heading in cabbage, Brassica oleracea var. capitata L. and its response to plant spacing, fertilizer and transplanting

The performance of N-(1,1-dimethylpropynyl)-3,5-dichlorobenzamide and other herbicides in controlling weeds in lettuce as affected by soil type and weather conditions

Influence of canopy orientation on fruiting of 'Ànjou' pears and postharvest urea spray on ovule longevity and fruit set of 'C̀omice' pears

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