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Pressure trunk injections of potassium as a possible short term corrective measure for potassium deficiency in sweet cherry (Prunus avium L.) and prune (Prunus domestica L.)

Creator:: Robbins, Scott Hill
Abstract:: The effect of pressure trunk injections of K₂HPO₄, and K₂SO₄. solutions on the mineral content, growth, yield and fruit quality of sweet cherry and mineral content of prune were investigated. A complimentary study presented in Appendix 1, was conducted to evaluate the short term effectiveness of K soil amendments, mulching...
Resource Type:: Masters Thesis
Full Text:: Sweet Cherry (Prunus avium L.) and Prune (Prunus domestica L.) Abstract Approved: . M. H

Response of strawberry plants to manganese nutrition

Creator:: Sabharwal, Sudarshan Lal
Abstract:: The effects of manganese nutrition on growth, mineral composition, carbohydrate and nitrogen metabolism, IAA oxidase and phenols of 'Northwest' strawberry plants are reported. Growth and mineral composition response were investigated in sand culture and Hoagland's solution 2 modified to contain 0.0, 0.5, 2.5, 12.5, 25.0, 62.5 and 125.0 ppm substrate...
Resource Type:: Dissertation
Full Text:: ^-c-T -y^--— Professor of Horticulture ^T faO^. tf fc-M-JC" ■■■^r in charge of major •y

Apple mycorrhizae and their effects on growth and nutrient concentration in apple seedlings grown in two soils with varied levels of P

Creator:: Geddeda, Yosef Ibrahim
Abstract:: A study was conducted to characterize the vesicular-arbuscular (VA) fungi of apples grown in Oregon. Using roots and soil from apple orchards as inoculae, six different fungal species were found in pot cultures: Gigaspora margarita Becker and Hall, Glomus fasciculatum (Thaxter sensu Gerdemann) Gerd. and Trappe, Glomus mosseae (Nicol. and...
Resource Type:: Dissertation
Full Text:: friendship and concern. I am also grateful to Dr. James M Trappe for his help with fungi identification

Development of Viticultural Practices to Improve Winegrape Performance : Experiment I: Effect of Irrigation on Ripening Dynamics, Photosynthetic Performance, and Canopy Development of Mature Pinot Noir Vines in the North Willamette Valley

Creator:: Howe, Jessica and Candolfi-Vasconcelos, M. Carmo
Abstract:: Most quality wines are produced in areas where annual precipitation is below 700 to 800 mm (Jackson & Schuster, 1994), and evidence suggests that high rainfall or excessive irrigation lowers quality. Excessive irrigation is reported to slow ripening, increase yields partially berry enlargement, elevate juice pH and acid content, and...
Resource Type:: Technical Report
Full Text:: and M. Carmo Candolfi-Vasconcelos Department of Horticulture Oregon State University INTRODUCTION

The effects of lime and potassium on mineral uptake in filberts (Corylus avellana L. cv Barcelona) grown in pot culture

Creator:: Geddeda, Yosef Ibrahim
Abstract:: The effects of soil incorporated lime and K on the concentrations of N, P, K, Ca, Mg, Mn, Fe, Cu, B and Zn in the leaves of filbert trees (Corylus aveliana L. cv Barcelona) were investigated. One year old filbert trees of uniform size were grown in Laurelwood clay loam...
Resource Type:: Masters Thesis
Full Text:: , Dr. M. H. Chaplin, for his suggestions and guidance throughout this research project. The author

Improving nitrogen management with cover crops in organic broccoli production

Creator:: Garrett, Amy
Abstract:: Legume cover crops can serve as important sources of nitrogen (N) in sustainable agriculture and can be economically beneficial when fertilizer inputs are reduced without a yield reduction. Synchronizing N mineralization from organic materials with the needs of the subsequent crop is a challenge for organic growers. Predicting plant available...
Resource Type:: Masters Thesis
Full Text:: : _______________________________________________________________________ John M. Luna Legume cover crops can serve as important sources of nitrogen (N) in

Effect of trellis type and canopy location on yield components, fruit composition, shoot morphology, leaf gas exchange, and the dynamics of storage carbohydrates in Pinot noir grapevines

Creator:: Ratliff-Peacock, Joey D.
Abstract:: Five trellis types were compared during 1996 and 1997 for their effect on Pinot noir yield components, fruit composition, fruit set, shoot morphology, leaf gas exchange, and trunk carbohydrate storage. These trellis systems were: upright vertical, cane pruned (double Guyot); upright vertical, spur pruned (bilateral cordon); Scott Henry, cane pruned;...
Resource Type:: Masters Thesis
Full Text:: : ._. . . _ u . _ Carmo M. Vasconcelos Five trellis types were compared during 1996 and 1997 for their

Evaluation of grapevine red blotch virus epidemiology with reference to potential insect vectors

Creator:: Dalton, Daniel T.
Abstract:: Grapevine red blotch virus (GRBV), the causal agent of red blotch disease (RBD) in grapevine, Vitis vinifera L., is an emerging pathogen of significance to the wine grape industry of Oregon, USA. To address knowledge gaps of GRBV epidemiology, spread of GRBV was evaluated in Oregon vineyards over four years....
Resource Type:: Dissertation
Full Text:: specimens. All were collected on Medicago sativa, in Jackson County, Oregon (42.389° N 122.940° W) by M

Impact of cover crops on weed abundance and nitrogen contribution in broccoli, Brassica oleracea var. italica, production systems in the maritime Pacific Northwest

Creator:: Angustia, Segundo Nova
Resource Type:: Masters Thesis
Full Text:: . Production Systems in the Maritime Pacific Northwest. Abstract approved: —» 1/ ■ i /—*— John M. Luna

Integration of conservation tilage and cover crops in broccoli production systems of the Pacific Northwest

Creator:: O'Brien, Timothy John
Abstract:: Field and greenhouse experiments were conducted in 1996 and 1997 to evaluate the effects of integrating conservation tillage and cover cropping on broccoli production as well as agroecological parameters. A field experiment was conducted during 1996-97 at the Oregon State University Horticulture Research farm near Corvallis, OR. The specific objectives...
Resource Type:: Masters Thesis
Full Text:: approved: ^., _ I John M. Luna Field and greenhouse experiments were conducted in 1996 and

ScholarsArchive@OSU

Pressure trunk injections of potassium as a possible short term corrective measure for potassium deficiency in sweet cherry (Prunus avium L.) and prune (Prunus domestica L.)

Response of strawberry plants to manganese nutrition

Apple mycorrhizae and their effects on growth and nutrient concentration in apple seedlings grown in two soils with varied levels of P

Development of Viticultural Practices to Improve Winegrape Performance : Experiment I: Effect of Irrigation on Ripening Dynamics, Photosynthetic Performance, and Canopy Development of Mature Pinot Noir Vines in the North Willamette Valley

The effects of lime and potassium on mineral uptake in filberts (Corylus avellana L. cv Barcelona) grown in pot culture

Improving nitrogen management with cover crops in organic broccoli production

Effect of trellis type and canopy location on yield components, fruit composition, shoot morphology, leaf gas exchange, and the dynamics of storage carbohydrates in Pinot noir grapevines

Evaluation of grapevine red blotch virus epidemiology with reference to potential insect vectors

Impact of cover crops on weed abundance and nitrogen contribution in broccoli, Brassica oleracea var. italica, production systems in the maritime Pacific Northwest

Integration of conservation tilage and cover crops in broccoli production systems of the Pacific Northwest

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