Index Catalog // ScholarsArchive@OSU

1965 weed control research [preliminary draft]

Creator:: Crabtree, Garvin, Bullock, R. M., and Fitch, Luther
Abstract:: The following report includes weed control research in horticultural crops in Oregon during 1965.
Resource Type:: Technical Report

1966 weed control research in vegetable crops [preliminary draft]

Creator:: Crabtree, Garvin
Abstract:: A number of herbicides showed potential use for selective control of broadleaf weeds in beans in the screening trial reported here.
Resource Type:: Technical Report

1969 weed control research in vegetable crops [preliminary draft]

Creator:: Crabtree, Garvin
Abstract:: Field trials of weed control research on several vegetable crops are reported in this summary. Unless otherwise indicated these trials were conducted at the Vegetable Crops Research Farm at Corvallis. Soil type at this location is a silty clay loam and all plots were sprinkler irrigated as needed to provide...
Resource Type:: Technical Report

1985 Frost Report

Creator:: Lombard, Porter and Price, Steve
Abstract:: This year's late spring frost prompted a number of growers to call OSU with questions about the fruitfulness of secondary buds and about management alternatives for frost damaged vines. In response to this concern three experiments were established in Willamette Valley vineyards. At Chateau Benoit Vineyard ten vines of MollerThurgau...
Resource Type:: Technical Report

A story of the Blue Lake pole bean industry in Western Oregon

Creator:: Baggett, James R. and Lucas, William
Resource Type:: Book

A Survey of Oregon Pinot noir Grape and Wine Phenolic Composition

Creator:: Price, Steven F., Valladao, Marilin, and Watson, Barney
Abstract:: Thirty five vineyard blocks of Pinot noir were sampled at harvest by taking a two hundred cluster sample in 1993. Commercial wines from these blocks were analyzed by HPLC at two and nine months of age. Cluster weights ranged from 72 to 148 g, berry weights from 0.55 to 0.90...
Resource Type:: Technical Report

Alternative snap bean planting strategies to facilitate mechanical in-row weeding : final report

Creator:: Peachey, R. Edward
Abstract:: Nonchemical weed control strategies are in short supply in snap beans, particularly strategies that target weeds within the seed row. Recent work demonstrated the limitations of propane flaming and organic herbicides for weed control in stale seedbeds. There was very little improvement in weed control with propane flame or organic...
Resource Type:: Technical Report

Ammonium Metabolism in Grapes [1992-1993]

Creator:: Creasy, Glen L. and Breen, Patrick J.
Abstract:: Oregon grape growers are sometimes troubled with fruit set problems. There are many types of fruit set disorders, but a recently described one is inflorescence necrosis (IN). Though many studies related to the disorder have been done at OSU and elsewhere, investigation into IN is still in its infancy. Several...
Resource Type:: Technical Report

Ammonium Metabolism in Grapes [1993-1994]

Creator:: Creasy, Glen L. and Breen, Patrick J.
Abstract:: The connection between the fruit-set disorder Inflorescence Necrosis (IN) and high ammonium (NI14+) in affected tissues has led to an investigation of NH4+ assimilation enzymes (principally glutamine synthetase (GS) and glutamate synthase) in grape tissues. Previous work in this department has suggested that toxic levels of NH4+ build up in...
Resource Type:: Technical Report

Bees of the Pacific Northwest : key to Lasioglossum species for females of the subgenera Hemihalictus, Sphecodogastra, and Evylaeus in Oregon (Hymenoptera : Halictidae)

Creator:: Engler, Joseph D., Gorman, Mark, Cappaert, David, Stanton, Marek, Best, Lincoln R., and Jackson, August S.
Abstract:: The following taxonomic keys are adapted in part from the subgeneric and species descriptions and keys produced by McGinley (2003), Gibbs et al. (2013) and Gardner and Gibbs (2022). Additional identification information was provided by Jason Gibbs, Thilina Hettiarachchi (University of Manitoba), and Joel Gardner (Washington State University). While these...
Resource Type:: Technical Report

Biology and Demographics of Phylloxera in Western Oregon

Creator:: Strik, Bernadine C., Connelly, Anne, Fisher, Glenn, and Granett, Jeffrey
Abstract:: Since phylloxera's discovery in a commercial vineyard in August of 1990, nine infestations have been verified in Oregon. With over 95% of Oregon's vineyards planted with ownrooted, Vitis vinifera, non-resistant vines, understanding the insect's biology under our conditions has become important for determining management strategies that minimize rate of spread....
Resource Type:: Technical Report

Broccoli Breeding, Evaluation : Oregon Processed Vegetable Commission Continuing Project Report, 2016

Creator:: Myers, James R.
Abstract:: Processors need broccoli with better quality traits than what is available in cultivars developed for California and Mexico fresh markets. Farmers need to reduce labor costs of broccoli production by mechanizing harvest. Most contemporary commercially available cultivars are not suitable for either mechanical harvest or processing. The objective of the...
Resource Type:: Technical Report

Broccoli Breeding, Evaluation and Seed Production 2014 : Oregon Processed Vegetable Commission Continuing Project Report

Creator:: Myers, James R. and Yorgey, Brian
Abstract:: Processors need broccoli with better quality traits than what is available in cultivars developed for California and Mexico fresh markets. Farmers need to reduce labor costs of broccoli production but mechanizing harvest. Most contemporary commercially available cultivars are not suitable for either mechanical harvest or processing. The objective of the...
Resource Type:: Technical Report

Broccoli Breeding, Evaluation and Seed Production 2015 : Oregon Processed Vegetable Commission Continuing Project Report

Creator:: Myers, James R. and Yorgey, Brian
Abstract:: Processors need broccoli with better quality traits than what is available in cultivars developed for California and Mexico fresh markets. Farmers need to reduce labor costs of broccoli production by mechanizing harvest. Most contemporary commercially available cultivars are not suitable for either mechanical harvest or processing. The objective of the...
Resource Type:: Technical Report

Broccoli Breeding, Evaluation and Seed Production : Report to the Oregon Processed Vegetable Commission, 2013-2014

Creator:: Myers, James R. and Yorgey, Brian
Abstract:: Research efforts were focused on testing various inbred combinations for hybrid production and adaptation to Oregon growing conditions. Trials at the Vegetable Re-search Farm included a yield trial of OSU derived hybrids, and observation trials of OSU inbreds and hybrids. Breeding funds were used for a major portion of the...
Resource Type:: Technical Report

Broccoli breeding, evaluation, and seed production : Report to the Oregon Processed Vegetable Commission, 2008-2009

Creator:: Myers, James R. and Yorgey, Brian
Abstract:: Objectives: 1. Develop broccoli varieties adapted to western Oregon with suitable quality, high yields, and disease resistance. Specific traits include: a. Early to midseason maturity b. Concentrated yield potential c. Head rot and downy mildew resistance d. Large openly branched heads that are well exserted and have clean stems for...
Resource Type:: Technical Report

Broccoli heat tolerance and varietal evaluation in western Oregon

Creator:: Nagy, Andy, Stone, Alex, Myers, Jim, and Peachey, Ed
Abstract:: With the hot summers of recent years causing significant heat damage to broccoli heads within the Willamette valley, varietal screenings for newer and more heat tolerant varieties became necessary. Most commercially available broccoli varieties are bred for production within milder and more climatically stable regions, such as the Salinas Valley...
Resource Type:: Technical Report

Canopy Management Practices and Vine Performance [1996-1997]

Creator:: Candolfi-Vasconcelos, M. Carmo and Castagnoli, Steve
Abstract:: A factorial design was used to vary leaf canopy structure of mature Pinot noir grapevines during two consecutive seasons: shoot tipping at full bloom (yes or no), lateral shoot length (no laterals, laterals cut back to 4 leaves at full bloom, laterals allowed to grow undisturbed) and cluster zone leaf...
Resource Type:: Technical Report

Chardonnay Clonal Trial

Creator:: Price, Steve and Watson, Barney
Abstract:: The Chardonnay clonal trial was harvested on September 29th this year at the end of a week of unusually hot and dry weather. Most of the vines had been pruned to 20 nodes per vine but crop load was light due to small clusters. Yields ranged from less than 0.5...
Resource Type:: Technical Report

Choosing Phylloxera-Resistant Rootstocks for Oregon Vineyards: The Impact on Vine Performance and Productivity

Creator:: Candolfi-Vasconcelos, M. Carmo and Castagnoli, Steve
Abstract:: Five replicated rootstock trials established in Oregon's three main viticultural. regions were evaluated for the effect of rootstock on Pinot noir performance. All the trials except Alpine included the following seven rootstocks: ungrafted Pinot noir, 3309 Couderc, 101-14 Millardet et De Grasset, 44-53 Mal6gue, 420 A Millardet et De Grasset,...
Resource Type:: Technical Report

Clubroot (Plasmodiophora brassicae) control strategies on brassicas : Oregon Processed Vegetable Commission Continuing Project Report, 2014

Creator:: Heinrich, Aaron and Stone, Alex
Abstract:: This research has demonstrated that liming clubroot infected soils to a pH ≥7.1 is an effective practice for reducing both the incidence and severity of clubroot. Liming does not kill the pathogen but rather prevents disease spores from infecting the plant. This research demonstrated that highly reactive calcitic lime products...
Resource Type:: Technical Report

Clubroot (Plasmodiophora brassicae) control strategies on brassicas : Oregon Processed Vegetable Commission Final Project Report, 2015

Creator:: Heinrich, Aaron and Stone, Alex
Abstract:: The goals of this project were to determine 1) if liming controls clubroot, 2) the pH that must be attained to achieve commercially viable levels of control, and 3) how best to lime (materials, timing, incorporation strategies) to achieve that pH.
Resource Type:: Technical Report

Continued Development of the Northwest Berry & Grape InfoNet

Creator:: Hellman, Edward, Koskela, Gina, and Friedkin, Bill
Abstract:: The Northwest Berry & Grape InfoNet (NBGI) went online December 29, 1995, and since that time it has become an important information and communications resource for the winegrape industry of the Northwest. It was accessed more than 14,000 times during its first year, and it is routinely used by grape...
Resource Type:: Technical Report

Cooperative Rootstock Trials: Research Update

Creator:: Candolfi-Vasconcelos, M. Carmo and Castagnoli, Steve
Abstract:: Five replicated rootstock trials established in Oregon's three main viticultural regions were evaluated for the effect of rootstock on Pinot noir performance. All the trials except Alpine included the following seven rootstocks: ungrafted Pinot noir, 3309 Couderc, 101-14 Millardet et De Grasset, 44-53 Malegue, 420 A Millardet et De Grasset,...
Resource Type:: Technical Report

Datasets for Phylogenetic Estimation and Ancestral State Reconstruction of Rubus (Rosaceae) using Target Capture Sequencing

Creator:: Carter, Katherine
Abstract:: Sequence alignments, phylogenetic trees, and associated information for Phylogenetic Estimation and Ancestral State Reconstruction of Rubus (Rosaceae) using Target Capture Sequencing
Resource Type:: Dataset

Determining herbicide damage to light harvesting apparatus of radishes (Raphanus sativus)

Creator:: Eskelsen, S. R., Crabtree, Garvin, Boone, R. B., and Daley, L. S.
Abstract:: In vivo spectral analysis of radish leaves sought effects on radish light harvesting apparatus (LH) of the herbicides: clomazone (FMC57020; [2-(2-chlorophenyl) methyl-4,4 dimethyl-3-isoxalidinone), diuron (DCMU; [3-(3,4-dichlorophenyl)-l,ldimethylurea)] and amitrol (H-1,2,4-triazole-3-amine). All herbicides used cause visual symptoms of chlorosis or damage chloroplast membranes and thus disrupt LH structure. The spectra were obtained...
Resource Type:: Technical Report

Development and Testing of Bacteria Free Grapevines for Prevention of Crown Gall in Oregon Nurseries and Vineyards

Creator:: Miller, Marilyn L., Moore, Larry W., Mentzer, Jessica, Dierenfield, Lora, Ferguson, Kathleen, Candolfi-Vasconcelos, M. Carmo, and Castagnoli, Steve
Abstract:: Agrobacterium vitis is a bacterium that causes crown gall in grapevines. Plant injury from freezing temperatures or mechanical damage during cultivation often provide wounds required for infection to occur. Crown gall may kill grapevines and a new shoot is often brought up from the root to replace dead vines. Discovery...
Resource Type:: Technical Report

Development of a Computer-Based Information System for Grapes and Small Fruits

Creator:: Hellman, Edward, Koskela, Gina, and Friedkin, Bill
Abstract:: To develop a computer-based information system for grapes and small fruits that will facilitate and increase access to information, and encourage increased communications among everyone involved in the industry.
Resource Type:: Technical Report

Development of Netting Systems for Bird Control in Oregon Vineyards

Creator:: Cavaletto, Richard A. and Price, Steve
Abstract:: Objectives: - Evaluate existing netting systems developed for use as bird control in horticultural crops, - Provide protection from birds for the Lewis-Brown Horticultural Farm yield trials vineyard, and - Establish a field trial to evaluate netting systems and provide a location for growers to observe the results.
Resource Type:: Technical Report

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

Development of Viticultural Practices to Improve Winegrape Performance : Experiment I: Effect of Trellis Type and Canopy Location on Yield Components, Fruit Composition, Fruit Set, and Shoot Morphology in Pinot noir Grapevines

Creator:: Ratliff-Peacock, Joey and Candolfi-Vasconcelos, M. Carmo
Abstract:: Five different trellis and training systems were compared in their effect on yield components, fruit composition, fruit set, and shoot morphology in Pinot noir grapevines in 1996 and 1997. This trial was performed on established vines planted on a low-vigor valley floor site, in the Willamette Valley of Oregon. The...
Resource Type:: Technical Report

Development of Viticultural Practices to Improve Winegrape Performance : Experiment II: Effect of Canopy Location on Yield Components and Fruit Composition in Pinot noir Grapevines Trained to the Scott Henry Trellis System

Creator:: Ratliff-Peacock, Joey, Candolfi-Vasconcelos, M. Carmo, and Henry, Scott, Sr.
Abstract:: For this trial, established Pinot noir vines, located on the valley floor of the Umpqua Valley in Oregon were used. In 1996 and 1997 sixteen vines trained to the Scott Henry trellising system were separated into four different quadrants, determined by shoot orientation: Bottom canopy, shoots trained toward the ground;...
Resource Type:: Technical Report

Development of Viticultural Practices to Improve Winegrape Performance Experiment I: Effect of Trellis Type and Canopy Location on Yield Components, Fruit Composition, Fruit Set, and Shoot Morphology in Pinot noir Grapevines [1997-1998]

Creator:: Ratliff-Peacock, Joey and Candolfi-Vasconcelos, M. Carmo
Abstract:: Five different trellis and training systems were compared in their effect on yield components, fruit composition, fruit set, and shoot morphology in Pinot noir grapevines in 1996 and 1997. This trial was performed on established vines planted on a low-vigor valley floor site, in the Willamette Valley of Oregon. The...
Resource Type:: Technical Report

Distribution and Population Dynamics of Plant-Parasitic Nematodes in Oregon Vineyards, and Their Effects on Vine Growth [1993-1994]

Creator:: Ingham, Russell E., Strik, Bernadine C., Forge, Thomas, and Connelly, Ann
Abstract:: Objectives: 1. Survey Oregon vineyards for the presence, identity and abundance of plant parasitic nematodes. 2. Document seasonal changes in abundance of species of important plant parasites in order to identify optimum times for sampling. 3. Evaluate the efficacy of Nemacur for reducing populations of plant parasitic nematodes.
Resource Type:: Technical Report

Distribution and Population Dynamics of Plant-Parasitic Nematodes in Oregon Vineyards, and Their Effects on Vine Growth [1994-1995]

Creator:: Ingham, Russell E., Forge, Thomas, Strik, Bernadine C., and Pinkerton, J. N.
Abstract:: Objectives 1. Survey Oregon vineyards for the presence, identity and abundance of plant-parasitic nematodes. 2. Relate the distribution and abundance of potentially pathogenic species to viticultural practices and site characteristics. 3. Evaluate the efficacy of Nemacur for reducing populations of plant-parasitic nematodes. 4. Document seasonal changes in the abundance of...
Resource Type:: Technical Report

Effect of Canopy Location on Yield Components and Fruit Composition in Pinot noir Grapevines Trained to the Scott Henry Trellis System

Creator:: Ratliff-Peacock, Joey, Candolfi-Vasconcelos, M. Carmo, and Henry, Scott
Abstract:: Pinot noir vines, trained to the Scott Henry trellising system were separated into four different quadrants: Bottom canopy, trained toward the ground; Top canopy, trained upwards; East orientation, receiving the morning sunlight; and West orientation, receiving afternoon sunlight. Yield components and fruit composition were measured for each canopy, orientation, and...
Resource Type:: Technical Report

Effect of Canopy Management Practices on Fruit Set, Yield Components and Fruit Composition

Creator:: Candolfi-Vasconcelos, M. Carmo and Castagnoli, Steve
Abstract:: The effect of shoot tipping, lateral shoot length and cluster zone leaf removal on yield, yield components, fruit composition and soundness were evaluated on mature Pinot noir grapevines. Shoot tip removal at bloom improved percent fruit set, number of berries per cluster and cluster weight. Elimination of lateral shoots also...
Resource Type:: Technical Report

Effect of Hot Water Dips on Eradication of Grape Phylloxera from Nursery Stock

Creator:: Stonerod, Paula and Strik, Bernadine C.
Abstract:: The easiest way to introduce phylloxera to a site is by infested plant material. If a grower can effectively remove any existing phylloxera on new plants, the rate of spread of phylloxera. in Oregon vineyards will be significantly decreased. The objectives of this study are to determine methods for dipping...
Resource Type:: Technical Report

Effect of pop-up fertilizers and planting density on early season sweet corn growth and ear yield : Oregon Processed Vegetable Commission Continuing Project Report, 2014

Creator:: Peachey, Ed and Sullivan, Dan M.
Abstract:: Prices paid for sweet corn are low relative to the cost of producing the crop, and every strategy possible must be used to maximize net return. Two strategies used to enhance profitability but that have received little research attention under Western Oregon conditions are the use of pop-up fertilizers and...
Resource Type:: Technical Report

Effect of pop-up fertilizers and planting density on early season sweet corn growth and ear yield : Oregon Processed Vegetable Commission Final Project Report, 2015

Creator:: Peachey, Ed and Sullivan, Dan M.
Abstract:: Prices paid for sweet corn are low relative to the cost of producing the crop, and every strategy possible must be used to maximize net return. Two strategies used to enhance profitability but that have received little research attention under Western Oregon conditions are the use of pop-up fertilizers and...
Resource Type:: Technical Report

Effect of Trellis Type and Canopy Location on Yield Components, Fruit Composition, Fruit Set, and Shoot Morphology in Pinot noir Grapevines

Creator:: Ratliff-Peacock, Joey and Candolfi-Vasconcelos, M. Carmo
Abstract:: Five different trellis and training systems were compared in their effect on yield components, fruit composition, fruit set, and shoot morphology in Pinot noir grapevines. The treatments were: upright vertical, cane pruned (Guyot); upright vertical, spur pruned (Bi-lateral Cordon); Scott Henry, cane pruned; Lyre, cane pruned; and Geneva Double Curtain...
Resource Type:: Technical Report

Effects of Crop Level on Fruit Composition of Pinot noir Grapes

Creator:: Brasher, Erik and Candolfi-Vasconcelos, M. Carmo
Abstract:: A broad range of factors influences wine grape quality and its manipulation has stimulated interest among grape growers, wine makers, and research scientists alike. One such factor affecting wine grape quality is crop level, particularly for Pinot noir. Since the capacity of a vine to ripen fruit depends largely on...
Resource Type:: Technical Report

Enhanced efficiency fertilizer technologies for improved production in sweet corn (2014) : Oregon Processed Vegetable Commission Continuing Project Report

Creator:: Sullivan, Dan M., Heinrich, Aaron, and Peachey, Ed
Abstract:: Enhanced efficiency fertilizer (EEF) technologies have the potential to improve the crop N use efficiency (NUE) as well as minimize negative environmental losses compared to conventional fertilizers. The EEF fertilizer products consist of urea plus additives (to inhibit N loss). The major pathways for N loss in our sweet corn...
Resource Type:: Technical Report

Enhanced efficiency fertilizer technologies for improved production in sweet corn (2015) : Oregon Processed Vegetable Commission Final Project Report

Creator:: Sullivan, Dan M., Heinrich, Aaron, and Peachey, Ed
Abstract:: Urea is a common nitrogen fertilizer for sweet corn production. This two year project evaluated commercially available urea additives for their potential to provide crop production and environmental benefits. Specifically, experiments were designed to evaluate the efficacy of urea fertilizer products containing a urease inhibitor (Agrotain Ultra), or nitrification inhibitors,...
Resource Type:: Technical Report

Evaluation of Clonal Selections of Bordeaux-type Wine Grape Cultivars

Creator:: Clark, Beverly, Price, Steve, Lombard, Porter, and Robbins, Scott
Abstract:: The Oregon Foundation Seed & Plant Materials Project (FS&PMP) is charged with maintaining, increasing, and distributing early generation planting stock of grains, grasses, legumes, potatoes, grapes, and mint to Oregon growers. Early generation seed and plant materials are released to Foundation seed programs for the production of the Foundation class...
Resource Type:: Technical Report

Evaluation of combined fungicide and genetic resistance to control white mold in green beans : Proposal to the Oregon Processed Vegetable Commission, 2015

Creator:: Myers, Jim
Abstract:: The resistance to white mold obtained so far in snap beans has been derived from NY 6020, which provides partial physiological resistance. Under light disease pressure, plants will show few if any symptoms, while under heavy pressure, the plants may show a moderate level of infection (whereas susceptible BBL types...
Resource Type:: Technical Report

Evaluation of combined fungicide and genetic resistance to control white mold in green beans, 2016 : Oregon Processed Vegetable Commission Final Project Report

Creator:: Meyers, Jim and Peachey, Ed
Abstract:: The resistance to white mold obtained so far in snap beans has been derived from NY 6020, which provides partial physiological resistance. Under light disease pressure, plants will show few if any symptoms, while under heavy pressure, the plants may show a moderate level of infection (whereas susceptible BBL types...
Resource Type:: Technical Report

Evaluation of Cover Crop Effects in a 'Pinot noir' Vineyard

Creator:: Schonenberger, Patrik M. and Candolfi-Vasconcelos, M. Carmo
Abstract:: Three different cover crop treatments were compared for their effects on vine growth, leaf gas exchange, yield parameters and fruit composition. The treatments were: resident plants, an insectary plant mixture and a grass cover. At veraison (August 2 1), photosynthesis rate was lowest for the vines with the grass cover...
Resource Type:: Technical Report

Evaluation of diclofop in vegetable crops - 1979

Creator:: Crabtree, Garvin
Abstract:: A field trial was established at the Oregon State University Vegetable Research Farm, Corvallis, Oregon, to evaluate control of barnyardgrass and tolerance of several vegetable crops to diclofop-methyl (Hoelon) and a related experimental herbicide, HOE 23408 PLUS.
Resource Type:: Technical Report

Evaluation of fruit size and seed number in triploid and tetraploid Malus spp.

Creator:: Dempster, Jonathan and Contreras, Ryan N.
Abstract:: Fruit diameter of triploid and tetraploid Malus spp. accessions were evaluated based on ploidy and seed number. Pome size in relation to seed number and ploidy level was evaluated using Tukeys HSD in R. With 95% confidence, pome diameter was not impacted by seed number in these selections (Tukey’s HSD...
Resource Type:: Poster

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