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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

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

Using rootstocks to manipulate vine physiological performance and mediate changes in fruit and wine composition

Creator:: Sampaio, Tiago Luís Barros
Abstract:: A rootstock trial was established in 1997 at the OSU Woodhall vineyard, located in the Southern Willamette Valley, which included two experiments. The first experiment was a factorial of four varieties grafted on to 9 rootstocks, and also as ungrafted vines (a split-plot design). The second experiment was a randomized...
Resource Type:: Dissertation
Full Text:: : _________________________________________________ M. Carmo Vasconcelos A rootstock trial was established in 1997 at the OSU Woodhall vineyard

Effect of boron sprays on fruit set, fruit quality, boron distribution and floral morphology of 'Italian' prune (Prunus domestica L.)

Creator:: Callan, Nancy Woodworth
Resource Type:: Dissertation
Full Text:: 'ITALIAN' PRUNE (PRUNUS DOMESTICA L.) Abstract approved: / ■ ; Maxine M. Thompson The

Effects of varying levels of nitrogen and zinc on growth and nutrient composition of the sweet cherry (Prunus avium L.)

Creator:: Sauser, Jerry Drew
Abstract:: The effects of N and Zn treatments on growth and nutrient composition of sweet cherry trees were investigated in greenhouse and outdoor sand culture experiments. In these studies, one-year old clonal F12-1 sweet cherry trees were grown in dithizone purified nutrient solution consisting of three levels of N (3O, 80,...
Resource Type:: Dissertation
Full Text:: (Prunus avium L. ) Abstract approved: M. H. Chaplin The effects of N and Zn treatments on growth

A study of the physiology of dormancy in the genus Pyrus

Creator:: Strausz, Stanley Douglas
Abstract:: This investigation was undertaken to observe possible changes in growth substances in Pyrus throughout the dormant period. The primary objective was to determine if a correlation existed between growth substance content and the inherent chilling requirement of seeds and buds. Samples of whole buds were taken at intervals from the...
Resource Type:: Dissertation
Full Text:: : „ „ / M. N. Westwood This investigation was undertaken to observe possible changes in growth

Relationship of boron to reproduction in hazelnut (Corylus avellana L.)

Creator:: Shrestha, Gyan Kumar
Abstract:: Boron sprays produced fruit set increases in 'Barcelona' hazelnut orchards in 1984 and in 1985. The absolute fruit set was correlated with leaf B content but not with nut B. With relative fruit set (RFS), B content of nuts in May (r = 0.63**) was more strongly related to set...
Resource Type:: Dissertation
Full Text:: deep sense of gratitude to my advisor, Dr. Maxine M. Thompson, Professor of Horticulture for

The physiology of Picea grafts

Creator:: Beeson, Richard C.
Resource Type:: Dissertation
Full Text:: of Picea Grafts Abstract approved: &■ a^o^M^,^ ^. y^-^y^.,—- , ''William M. Pp6ebsting

Behavior of Drosophila suzukii in Relation to Abiotic, Biotic, and Nutrient Factors

Creator:: Park, Kyoo Rok
Abstract:: Drosophila suzukii (Diptera: Drosophilidae), is a serious pest in soft and stone fruit industries worldwide. The unique serrated ovipositor of female Drosophila suzukii allowed the species to reproduce in intact, ripening fruit before the harvest. Current control methods rely heavily on insecticide application, only becoming less profitable due to the...
Resource Type:: Dissertation
Full Text:: : ______________________________________________________ Vaughn M. Walton Drosophila suzukii (Diptera: Drosophilidae), is a serious pest in soft and

ScholarsArchive@OSU

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

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

Using rootstocks to manipulate vine physiological performance and mediate changes in fruit and wine composition

Effect of boron sprays on fruit set, fruit quality, boron distribution and floral morphology of 'Italian' prune (Prunus domestica L.)

Effects of varying levels of nitrogen and zinc on growth and nutrient composition of the sweet cherry (Prunus avium L.)

A study of the physiology of dormancy in the genus Pyrus

Relationship of boron to reproduction in hazelnut (Corylus avellana L.)

The physiology of Picea grafts

Behavior of Drosophila suzukii in Relation to Abiotic, Biotic, and Nutrient Factors

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