Index Catalog // ScholarsArchive@OSU

Heat energy exchange between the Killdeer, its eggs, and the environment

Creator:: Cronan, James Zan
Abstract:: The vegetation surrounding a nest shades and insulates the incubating bird in addition to concealing it. The vegetative material that makes up a nest insulates the eggs from its warmer or cooler surroundings. Since a Killdeer builds a stone-lined nest on barren ground, both egg and adult are subject to...
Resource Type:: Masters Thesis
Full Text:: substrate. This information suggests that embryonic development was retarded as a result of in- sufficient

Phenology and plant species adaptation to climates of the western United States

Creator:: Oregon State University. Agricultural Experiment Station
Abstract:: Published September 1978. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Resource Type:: Technical Report
Full Text:: Western Region Cooperative project W-130, Improving Stability of Deciduous Fruit Production by Reducing

The effect of 2,4-D on the respiration rate and ethylene production of Bartlett pears and Red Delicious apples

Creator:: Fechtig, Allen David
Abstract:: After nearly 20 years of commercial use in orchards without apparent tree injury in Oregon and Washington, 2,4-D [(2,4-dichlorophenoxy) acetic acid] was reported in 1970 to cause injury to apple and pear trees in Washington. In the early 1970's, there was widespread concern among growers, researchers, and processors in the...
Resource Type:: Dissertation
Full Text:: Bartlett pear orchards, alters the ripening process of mature fruit. Applications of 2,4-D were made at 0

Pheromonal communication in the western cherry fruit fly, with particular reference to oviposition

Creator:: Mumtaz, Mohammad Moizuddin
Abstract:: Studies conducted with the adult western cherry fruit fly, Rhagoletis indifferens Curran, revealed that successful oviposition occurred in three distinct phases, the prepenetration phase, the penetration phase and the postpenetration phase. During the postpenetration phase which averaged 51 seconds (range 18 to 86), the females dragged their ovipositor over the...
Resource Type:: Masters Thesis
Full Text:: COMMUNICATION IN THE WESTERN CHERRY FRUIT FLY, WITH PARTICULAR REFERENCE TO OVIPOSITION Redacted for Privacy

The relationship of temperature to pupal development rates of the western cherry fruit fly, Rhagoletis indifferens Curran

Creator:: VanKirk, James Ross
Abstract:: Adult emergence studies conducted with Rhagoletis indifferens Curran reveal that diapause development in this insect is completed most rapidly at approximately 3°C. These results coupled with those reported by Brown (1978) confirm that chilling at 3°C. for ca. 200 days is best when high percent emergence, good synchrony of emergence,...
Resource Type:: Masters Thesis
Full Text:: thresholds. The Relationship of Temperature to Pupal Development Rates of the Western Cherry Fruit Fly

The influence of enzymes on color deterioration of strawberry juice and concentrate

Creator:: Lee, Dai-lih Doris
Resource Type:: Masters Thesis
Full Text:: browning occurred in Tioga variety than in Hood variety. Green fruit showed greater browning capacity

Polyphenol oxidase of D'Anjou pears (Pyrus communis L.)

Creator:: Halim, David Husien
Abstract:: Stability, substrate and inhibitor specificity and electrophoretic properties of a crude polyphenol oxidase (PPO) preparation extracted from d'Anjou pears (Pyrus communis L.) were investigated. Levels of polyvinylpyrrolidone and pH of buffer for extraction were found to affect the specific activity of the extracted enzyme. An extract prepared with 1.5 g...
Resource Type:: Masters Thesis
Full Text:: Isolation of Enzyme from Fruit 5 Assay of PPO 8 pH Optima of PPO in Fruits 10 Heat Inactivation of PPO 10

Peer acceptance and interaction of preschool children

Creator:: Winston, Nancy Josephine
Abstract:: The purpose of this study was to explore the relationship between social acceptance and observed peer interaction in a select group of preschool children. The subjects were 30 children enrolled in two sessions of a child development laboratory sponsored by the Department of Family Life at Oregon State University. The...
Resource Type:: Masters Thesis
Full Text:: Life (Child Development) presented on Ane)13J,1 11, 1971 (Major) (Date) Title: PEER ACCEPTANCE AND

Relationships of self-directive group play, self-concept and social behavior in first grade children

Creator:: Braden, Gary Edgar
Abstract:: The purpose of this study was to investigate the relationship between self-directive play and social behavior and between self-directive play and self-concept in matched pairs of first grade children. The sample consisted of 12 pairs of first grade children matched for sex, age, school experience, and number of siblings. The...
Resource Type:: Dissertation
Full Text:: study is based on the new psychological models of human growth and development that have suggested

How to find help identifying fruit trees

Creator:: Oregon State University. Extension Service, Stebbins, Robert L., Hatch, Duane, Compton, Mary T., and Compton, O. C. (Oliver Cecil), 1903-
Abstract:: Published April 1977. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Resource Type:: Technical Report
Full Text:: for a name is of questionable value. If you have enough fruit for marketing, how- ever, those who

ScholarsArchive@OSU

Heat energy exchange between the Killdeer, its eggs, and the environment

Phenology and plant species adaptation to climates of the western United States

The effect of 2,4-D on the respiration rate and ethylene production of Bartlett pears and Red Delicious apples

Pheromonal communication in the western cherry fruit fly, with particular reference to oviposition

The relationship of temperature to pupal development rates of the western cherry fruit fly, Rhagoletis indifferens Curran

The influence of enzymes on color deterioration of strawberry juice and concentrate

Polyphenol oxidase of D'Anjou pears (Pyrus communis L.)

Peer acceptance and interaction of preschool children

Relationships of self-directive group play, self-concept and social behavior in first grade children

How to find help identifying fruit trees

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