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Influence of temperature and photoperiod on the developmental biology of the obliquebanded leafroller, Choristoneura rosaceana (Harris) (Lepidoptera:Tortricidae)

Creator:: Ranga Rao, Gangavalli V.
Abstract:: Developmental thresholds and thermal unit (degree day) requirements for eggs, different larval instars, pupal stage and preoviposition period were determined for the obliquebanded leafroller (OBLR), Choristoneura rosaceana (Harris). Separate thresholds and degree day requirements were determined for males and females, but differences between the sexes were not significant. However, there...
Resource Type:: Dissertation
Full Text:: . Thompson, and Dr. W. D. Anderman for their comments and advice throughout this study. Acknowledgement is

Vegetation-soil relationships in some Artemisia types in northern Harney and Lake Counties, Oregon

Creator:: Eckert, Richard Edgar
Resource Type:: Dissertation
Full Text:: conmiittee--Drs. D. D. Hill, D. W. Hedrick, J. E. Oldfield, W. W. Chilcote, and E. G. Knox--for their

Inheritance and associations of six agronomic traits and stem-base carbohydrate concentration on ratooning ability in rice (Oryza sativa, L.)

Creator:: Cuevas-Pérez, Federico E.
Resource Type:: Dissertation
Full Text:: research work. Thanks are extended to Dr. W. E. Kronstad, Dr. W. L. McCuistion, Dr. W. D. Hohenboken, Dr

Comparative gibberellin relationships in tall and dwarf peas (Pisum sativum L.)

Creator:: Anderson, James David
Abstract:: Experiments were performed to determine whether a direct correlation exists between the growth rates of tall and dwarf peas grown either in the light or in the dark and endogenous gibberellin (GA) content. Three separate but related experimental approaches were utilized: (1) the determination of possible qualitative and /or quantitative...
Resource Type:: Dissertation
Full Text:: . Appreciation is also expressed to Drs. N. I. Bishop, W. D. Loomis and A. W. Anderson for serving on my

The physiology of seasonal growth in tall fescue varieties (Festuca arundinacea Schreb.)

Creator:: Blacklow, Warren Marcus
Abstract:: The winter and summer growth of varieties of tall fescue (Festuca arundinacea Schreb.) that had originated from the Mediterranean region (Oregon 1000 and Tunisia) and northern Europe (Alta) were studied outdoors in the Mediterranean climate of western Oregon, and in greenhouses and controlled environment chambers. Treatments of temperature, photoperiod and...
Resource Type:: Dissertation
Full Text:: research: Dr. D. 0. Chilcote, Dr. M. D. Dawson, Dr. W. K. Ferrell, Dr. W. E. Kronstad, and Dr. R. .1

A revision to the genera Rhynchophorus and Dynamis (Coleoptera : Curculionidae)

Creator:: Wattanapongsiri, Anuwat
Abstract:: A taxonomic study was made on the genera Rhynchophorus and Dynamis of the weevil family Curculionidae which includes all of the species known to occur in the world. The bibliography lists all the important papers published to date on the taxonomy and bionomics of these weevils. A full synonymy is...
Resource Type:: Dissertation

Direct-maternal genetic correlations for preweaning growth in Hereford cattle

Creator:: Tewolde, Assefaw
Resource Type:: Dissertation
Full Text:: FOR PREWEANING GROWTH IN HEREFORD CATTLE Abstract approved: ,Redacted for privacy William D

Evaluation of low quality roughages and agricultural by-products as livestock feed

Creator:: Hussain, Imdad
Abstract:: Nine feeding trials and four laboratory scale experiments were conducted in this study. The study consisted of: (1) use of grass straw:corn juice (CJ) silages with fishmeal and/or alfalfa hay supplementation in beef heifers, sheep, pregnant dairy heifers, water buffaloes and Hereford cows; (2) use of cull onions:grass straw silages...
Resource Type:: Dissertation
Full Text:: his very nice personality. I also would like to thank Dr. H. S. Nakaue and Dr. D. W. Weber for

The biology and behavior of the alkali bee Nomia melanderi Cockerell (Hymnoptera: Apoidea)

Creator:: Hackwell, Glenn Alfred
Abstract:: Nomia melanderi Cockerell is one of the most efficient pollinators of alfalfa in Eastern Oregon. Emergence begins in June, usually reaches its peak in early July, and may continue into early August. Male emergence precedes female emergence by four or five days. For the first few weeks of this time,...
Resource Type:: Dissertation
Full Text:: . J. D. Lattin, Entomology Department Dr. W. P. Nagel, Entomology Department. TABLE OF CONTENTS

Translocation of photosynthates in soybeans (Glycine Max. (L) Merr. cv. Wilkin) as affected by soil water potential and soil temperature

Creator:: Ekasingh, Methi
Resource Type:: Dissertation
Full Text:: . Christensen, R. G. Petersen, W. D. Loomis, and W. W. Chilcote, my graduate committee. I wish to thank Dr. D

ScholarsArchive@OSU

Influence of temperature and photoperiod on the developmental biology of the obliquebanded leafroller, Choristoneura rosaceana (Harris) (Lepidoptera:Tortricidae)

Vegetation-soil relationships in some Artemisia types in northern Harney and Lake Counties, Oregon

Inheritance and associations of six agronomic traits and stem-base carbohydrate concentration on ratooning ability in rice (Oryza sativa, L.)

Comparative gibberellin relationships in tall and dwarf peas (Pisum sativum L.)

The physiology of seasonal growth in tall fescue varieties (Festuca arundinacea Schreb.)

A revision to the genera Rhynchophorus and Dynamis (Coleoptera : Curculionidae)

Direct-maternal genetic correlations for preweaning growth in Hereford cattle

Evaluation of low quality roughages and agricultural by-products as livestock feed

The biology and behavior of the alkali bee Nomia melanderi Cockerell (Hymnoptera: Apoidea)

Translocation of photosynthates in soybeans (Glycine Max. (L) Merr. cv. Wilkin) as affected by soil water potential and soil temperature

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