Index Catalog // ScholarsArchive@OSU

Xylem discontinuity in Vitis vinifera L. berries

Creator:: Creasy, Glen L.
Abstract:: Several effects of xylem discontinuity in Pinot noir and Merlot grape berries were studied. There was a reduction in the amount of apoplastic dye (Eosin Y or azosulfamide) uptake through cut pedicels into soft versus firm berries, suggesting a reduction in maximal xylem flow at that time. Both greenhouse and...
Resource Type:: Masters Thesis

Weed suppression in vegetables with residues of 'micah' barley (Horedeum vulgare L.) and other spring cereals

Creator:: Chongwe, Edgar Happy
Abstract:: Three experiments whose objectives were to investigate cover crop kill by winter freeze, weed suppression by 'Micah' barley and other spring cereals, and allelopathic potential of cereal covers were conducted at the Vegetable Research Farm and in the greenhouse and growth chamber facilities at OSU in 1989/90. Kill by winter...
Resource Type:: Masters Thesis

The inheritance of pod detachment force in green beans (Phaseolus vulgaris L.)

Creator:: McCluskey, Rebecca L.
Abstract:: The easy picking characteristic, expressed as low pod detachment force (PDF), offers a way to decrease pod damage in bush green beans mechanically harvested for processing and fresh market, and makes hand picking easier and faster. This study was undertaken to examine inheritance in a cross of two green bean...
Resource Type:: Masters Thesis

The evaluation of cold hardiness in Corylus

Creator:: Chozinski, Annie M.
Abstract:: Anthesis of both staminate and pistillate flowers of Corylus occurs in midwinter. To insure adequate pollination and nut set, these flowers must attain a sufficient hardiness level to withstand low temperatures. This study estimated cold hardiness of Corylus cultivars and species using laboratory freezing of shoots without artificial hardening. In...
Resource Type:: Masters Thesis

The effects of site of desiccation stress and antidesiccant application on the water relations and transplant establishment of dormant bare root deciduous nursery stock

Creator:: Remmick, Michael D
Resource Type:: Masters Thesis

The effect of four composts on the establishment of vesicular-arbuscular mycorrhizae in soilless media

Creator:: Miller, Michelle L., 1956-
Resource Type:: Masters Thesis

Survey of strawberry genotypes for infection of flower tissues by Botrytis cinerea

Creator:: Reyes, Luis Antonio
Abstract:: Recent research shows that flower parts of strawberry (Fragaria X ananassa Duch.) differ in their capacity to support the growth of Botrytis cinerea, the fungus which causes gray mold on fruit. Growth in styles is slow and hyphae rarely enter the carpel (achene), suggesting that this pathway is not the...
Resource Type:: Masters Thesis

Storage quality of red raspberries, blackberries and blueberries : effects of delayed cooling and package types

Creator:: Sapii, Ahmad Tarmizi
Abstract:: 'Amity' red raspberries, 'Chester' blackberries and 'Earliblue' blueberries were subjected to different cooling treatments at 0°C and placed in storage at 0°C. Fruits were cooled 2-4 times faster with forced-air cooling than with room cooling. Cooling treatments had no effect on decay, soluble solids content or citric and malic acid...
Resource Type:: Masters Thesis

Storage quality of fresh blueberry and blackberry varieties and evaluation of modified atmosphere packaging

Creator:: Moggia-Lucchini, Claudia E.
Abstract:: Blackberry varieties were evaluated with modified atmosphere packaging, using films Cryovac D-940 and D-955 in 0° and 5°C storage. Moisture loss was kept extremely low (less than 3%) in packaged fruits, but mold infection was excessively high because of high humidity accumulated inside the container. Blackberries selectively harvested into 3...
Resource Type:: Masters Thesis

Storage quality of broccoli florets and evaluation of modified atmosphere packaging

Creator:: Cabezas, Amalia
Abstract:: The effect of some factors that can affect quality characteristics of broccoli florets in storage was evaluated. Quality characteristics of broccoli florets with different rates of field nitrogen (N) application (0, 90, 180, and 270 Kg N/ha from urea) were evaluated in modified atmosphere packaging (MAP) (B-900 Cryovac film) storage...
Resource Type:: Masters Thesis

Soil temperature suppression on growth and yield of potato (Solanum tuberosum L.) in warm climates of Sri Lanka

Creator:: Tharmarajah, S. K.
Abstract:: Potato (Solanum tuberosum L.) is one of the most productive and nutritious food crops. Due to its adaptability to cool climates, production in Sri Lanka has been restricted to erosion-prone highlands. Vast potential exists for expansion of potato cultivation in the lowlands while production areas in the highlands are limited...
Resource Type:: Masters Thesis

Rubus spp. seed germination and morphology

Creator:: Peacock, Derek N.
Abstract:: Rubus spp. seeds have a thick protective endocarp and testa (seedcoat) that can restrict germination even under favorable conditions. The effect of pregermination treatments were studied in Rubus chamaemorus L., R. eustephanos Focke ex Diels, R. idaeus 'Amber' L., R. leucodermis Douglas ex Torrey & A. Gray, R. multibracteatus A....
Resource Type:: Masters Thesis

Rubus leaf regeneration and micropropagation of virus infected raspberry

Creator:: Tsao, Chih-wei V.
Resource Type:: Masters Thesis

Rootstock effects on the partitioning of dry matter in ten-year-old 'Starkspur Supreme Delicious' apple trees

Creator:: Strong, Dale E.
Resource Type:: Masters Thesis

Relationships of sweet corn (Zea mays L.) and cabbage (Brassica oleracea var capitata L.) growing in mixed stands using the addition series approach

Creator:: Chilanga, Thomson G.
Resource Type:: Masters Thesis

Plant regeneration from cell suspension cultures of iris (Iris germanica L. cv. 'Skating Party')

Creator:: Wang, Yuexin
Resource Type:: Masters Thesis

Physiological and cultural conditions affecting postharvest handling of bare-root nursery plants

Creator:: Englert, John M.
Abstract:: Nursery plants are often harvested, stored, and shipped bare-root for easier and more economical handling. Some species of woody and herbaceous perennials are less tolerant of postharvest handling than others. Desiccation stress during the handling of bare-root plants has been identified as a major problem contributing to poor survival and...
Resource Type:: Masters Thesis

Pear fruit scald : a physiologic disorder involving α-farnesene, conjugated trienes and α-tocopherol

Creator:: Zoffoli, Juan P.
Resource Type:: Masters Thesis

On-farm inquiry and assessment of tillage and cover cropping for white mold control in snap bean production

Creator:: Harrison, Elizabeth Langham.
Abstract:: Cultural practices in snap bean production were evaluated at the Oregon State University Vegetable Research Farm Corvallis, Oregon. In addition, decision-making in snap bean production was assessed on five farms in the Coburg-Junction City-Harrisburg regions of the Willamette Valley, Oregon. A field experiment with cover crop and tillage techniques was...
Resource Type:: Masters Thesis

Nitrogen partitioning in 'Marion' and 'Kotata' blackberries grown in alternate-year production

Creator:: Mohadjer, Paula
Resource Type:: Masters Thesis

Nitrogen and environmental factors influence bark storage protein gene expression in poplar

Creator:: Banados, Maria Pilar
Abstract:: In poplar (Populus spp.) a 32-kilodalton bark storage protein (BSP) accumulates during the fall and winter, and is thought to be a major storage form of overwintering nitrogen. BSP is induced by short-day (SD) photoperiod, and under natural conditions BSP accumulation coincides with the induction of dormancy. Because BSP accumulates...
Resource Type:: Masters Thesis

Multiple pest suppression with cover crops in strawberry

Creator:: Datta, Braja Bandhu
Abstract:: The experiment was conducted to compare multiple pest (weed, soil arthropod and diseases) suppression by cereal cover crops in 'Selva' and 'Totem' strawberry. In addition, perlite was used to compare improvement of soil and root aeration which might modify strawberry black root rot complex. Small-seeded summer annual weeds were suppressed...
Resource Type:: Masters Thesis

Micropropagation of Pyrus rootstocks

Creator:: Yeo, Dennis
Abstract:: The availability of new pear rootstocks could be increased by development of an efficient micropropagation system. Many P. calleryana, P. betulifolia and P. communis rootstocks are resistant to many pear diseases and are graft compatible with leading cultivars. Explains of three potentially useful rootstock selections P. calleryana Decne 'OPR 157',...
Resource Type:: Masters Thesis

Micropropagation and in vitro plant regeneration of rhododendrons

Creator:: Iapichino, Giovanni
Resource Type:: Masters Thesis

Irrigation and plant density effects on head rot and yield of broccoli

Creator:: Ludy, Robin L.
Abstract:: Effects of amount of applied water and frequency of irrigation on head rot and yield of three broccoli cultivars were evaluated in 1987 and 1988. Two irrigation frequencies were established with a line-source sprinkler system for 5.5 weeks during heading. The low-frequency experiment was watered once per week and the...
Resource Type:: Masters Thesis

Investigation of novel sources of genetic resistance to eastern filbert blight

Creator:: Lunde, China F.
Abstract:: To identify novel host genetic resistance to eastern filbert blight, caused by the fungus Anisogramma anomala (Peck) E. Muller, ninety European hazelnut {Corylus avellana L.) varieties and interspecific hybrids (with C. americana Marsh, or C. colurna L.) were screened for response to the eastern filbert blight pathogen after inoculation in...
Resource Type:: Masters Thesis

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

Influence of nitrogen form ratio and calcium on greenhouse and field performance of watermelon

Creator:: Lamb, Michael J.
Abstract:: Watermelon (Citrullus lanatus (Thunb.) Matsum. & Nakai var. Crimson Sweet) was seeded in a commercial peat mix in multicell containers (72 cells-tray⁻¹, 40 cm³-cell⁻¹) in July 1989 and April 1990. In 1989, the medium was amended with CaC0₃ at 10% w:v. In 1990, no CaC0₃ amendment was made. Watermelon seedling...
Resource Type:: Masters Thesis

Influence of canopy orientation on fruiting of 'Ànjou' pears and postharvest urea spray on ovule longevity and fruit set of 'C̀omice' pears

Creator:: Khemira, Habib
Abstract:: The effect of canopy orientation on fruiting performance of 'Beurre d'Anjou' pears (Pyrus communis L.) and postharvest urea spray on ovule longevity and fruit set of 'Doyenne du Comice' pears were studied. Hedgerows of 'Beurre d'Anjou' pear trees planted in 1969 in two orientations north-south (N-S) and east-west (E-W) were...
Resource Type:: Masters Thesis

Improvement of cryopreservation regrowth of in vitro Ribes by pretreatment

Creator:: Luo, Jie, 1968-
Abstract:: Improved recovery of cryopreserved meristems and calli from in vitro currant (Ribes aureum Pursh and R. ciliatum Humb. & Bonpl.) plants was obtained by two-hour pretreatment with sucrose, proline, abscisic acid-responsive protein (RABP), and bovine serum albumin (BSA) solutions. Meristems and calli cold-acclimatized for one week were immersed in pretreatment...
Resource Type:: Masters Thesis

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

Identification and development of PCR-based markers linked to eastern filbert blight resistance in hazelnut

Creator:: Davis, Joel W.
Abstract:: Using bulked segregant analysis, five RAPD markers were identified that were linked in coupling to a gene conferring complete resistance to eastern filbert blight caused by Anisogramma anomala (Peck) E. Muller in hazelnut (Corylus avellana L.). Two modified backcross populations were inoculated and scored for resistance to the pathogen and...
Resource Type:: Masters Thesis

Girdling and shading effects on inflorescence necrosis and rachis composition of pinot noir grapevine

Creator:: Ibacache, Antonio E.
Abstract:: There are several grape disorders that reduce fruit set. One, millerandage, is from poor fertilization to produce "hen and chicken" or small seedless berries; while another, Coulure, is the failure of grape flowers to develop into berries. A third one, inflorescence necrosis (INec), is a disorder that should be in...
Resource Type:: Masters Thesis

Genetic stability of micropropagated and in vitro cold-stored strawberries

Creator:: Kumar, Mohan B.
Abstract:: Genetic stability of micropropagated and cold-stored Fragaria x anannasa cultivar 'Pocahontas' was evaluated by Random Amplified Polymorphic DNA (RAPD) assay. Plantlets grown for eight months on M & S medium with 5 μM and 15 μM N6- benzyladenine (BA) were analyzed. No evidence of mutations was seen in over 200...
Resource Type:: Masters Thesis

Fruit color development in red pears

Creator:: Dussi Dehais, Maria Claudi
Abstract:: A fruit color descriptive study was conducted on 'Max' and 'Sensation' Red Bartlett, 'Columbia' and 'Gebhard' Red Anjou, 'Rogue Red', 'Rosired', 'Red Clapp' and 'Cascade' red pear varieties. A parallel comparative study was done to test differences between related red strains. 'Max' was compared with 'Sensation' in three different growing...
Resource Type:: Masters Thesis

Fall applied ethephon and temperature effects on flower bud growth and ovule longevity in Prunus domestica

Creator:: Moreno-Simunovic, Yerko M.
Abstract:: In the Pacific Northwest some prune cultivars often exhibit inconsistent fruit set. Several factors have been associated with this characteristic. Temperature, genotype and boron content are among the most frequently mentioned. Studies were conducted to determine the effect of fall ethephon application on flower bud growth and ovule longevity in...
Resource Type:: Masters Thesis

Evaluation of botanical diversity in Oregon vineyards

Creator:: Schonenberger, Patrik M.
Abstract:: Three different ground cover management strategies were compared at the OSU research vineyard near Alpine, Oregon. Botanical diversity was actively increased in two diverse treatments. Another treatment was botanically uniform and contained creeping bentgrass (Agrostis stolonifera). The composition of the vineyard floor vegetation and grapevine performance as affected by the...
Resource Type:: Masters Thesis

Enhancement of biological control with beneficial insectary plantings

Creator:: Colley, Micaela Ruth
Abstract:: Five field experiments were conducted to evaluate the relative attractiveness of potential beneficial insectary plants to aphidophagous hover flies and parasitic Hymenoptera and the effectiveness of interplanting selected flowering plants in a broccoli field to enhance biocontrol of the cabbage aphid and green peach aphid. In 1996 we established a...
Resource Type:: Masters Thesis

Effects of nitrogen source, rate and a nitrification inhibitor on soil nitrogen status and mineral composition of strawberry

Creator:: Marion, Carol I.
Abstract:: Three rates of urea, urea-DCD, and NH₄N0₃ were soil applied in April and August 1986 to strawberry selection OR-US 4930 and cultivar 'Sumas' to determine effects of the nitrification inhibitor dicyandiamide (DCD) and nitrogen source and rate on soil NH₄ and N0₃ levels, fruit yield and quality, and mineral composition...
Resource Type:: Masters Thesis

Effects of inoculations with pathogenic and beneficial microorganisms and ammonium of nitrate fertilization on Easter lily growth

Creator:: Valenciano Mora, Jose Roberto
Abstract:: Although chemical fungicides are commonly used to control fungal soil-borne diseases of Easter lilies, Lilium longiflorum Thunb., in field production and greenhouse forcing, cultural and biological controls may be alternatives or complementary to chemicals for control of pathogens. The influence of inoculations with beneficial, symbiotic, and biocontrol microorganisms to enhance...
Resource Type:: Masters Thesis

Effects of boron rates and differential irrigation on bush green beans and cauliflower

Creator:: Grealish, William J.
Abstract:: Five boron rates and seven water levels were applied to bush green beans (Phaseolus vulqaris cv Oregon 91G) and to cauliflower (Brassica olereacea var. botrytis, cultivar "Snowball Y") in 1989 and 1990 to evaluate their effects on total yield of both crops and on outer quality, head hollowness and internal...
Resource Type:: Masters Thesis

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

Effect of row cover and supplemental Ca fertilization on blossom-end rot in bell pepper (Capsicum annuum var. annuum, Grossom Group)

Creator:: Alexander, Shara E.
Abstract:: A 2-year trial was conducted at Oregon State University's Hermiston Agricultural Research and Extension Center to examine the effects of spunbonded row cover and supplemental calcium fertilization on blossom-end rot in two varieties of bell pepper. Blossom-end rot is a common cause of bell pepper yield losses, especially at the...
Resource Type:: Masters Thesis

Effect of pruning and training time on yield components and cold hardiness of 'Marion' blackberry

Creator:: Bell, Neil (Neil Charles), 1961-
Abstract:: The effect of primocane removal and training time on yield components and cold hardiness of 'Marion' trailing blackberry was studied. In 1991, primocanes were either not cut, or cut at ground level from plants on a single occasion at one month intervals from late April to late July. Four canes...
Resource Type:: Masters Thesis

Effect of maturity and storage on quality of "Gala," "Braeburn," and "Fuji" apples

Creator:: Plotto, Anne
Abstract:: In apples, the rapid changes occurring in fruit metabolism when approaching maturity affect their quality at harvest and after storage. The interest in the newly introduced cultivars, 'Gala', 'Braeburn' and 'Fuji' has initiated the following study on maturity indices and storage in the conditions of the Pacific Northwest. 'Gala', 'Braeburn'...
Resource Type:: Masters Thesis

Effect of floricane number on primocane growth, yield components, and cold hardiness in 'Marion' trailing blackberry

Creator:: Cortell, Jessica M.
Abstract:: In spring of 1993 and 1994, mature 'Marion' (Rubus sp.) plants were pruned to 0, 4, 8, and 12 floricanes. An additional treatment of 0 floricanes with early (30 cm) primocane pruning was included. Primocane growth was measured from emergence in April until growth cessation at the end of October....
Resource Type:: Masters Thesis

Effect of date of renovation on yield components of strawberries

Creator:: Zhang, Lingxiao
Abstract:: Two experiments were conducted from 1987 to 1990 to study the effect of date of renovation on strawberry yield and yield components. In the first experiment, 'Benton' plants were renovated from July 6, 1988 (1 week after harvest - WAH) to August 24, 1988 (8 WAH). In the second experiment...
Resource Type:: Masters Thesis

Effect of boron on seven vegetable crops grown on two soil types

Creator:: Oneida, Kelly Ann
Abstract:: Boron deficiency or toxicity can reduce yield and quality of vegetables. Seven vegetable crops, varying from low to high boron requirements were grown in field plots at Corvallis in 1987. Leaf-B and yield components of green bean, cucumber, potato, carrot, tomato, broccoli and table beet were examined under conditions of...
Resource Type:: Masters Thesis

Digital analysis of remotely sensed images for evaluating color in turfgrass

Creator:: Friedkin, William C., 1954-
Abstract:: Most conventional approaches to rating turf color for different turf varieties grown under similar conditions or for the same variety grown under different cultural conditions employ a visual subjective rating. By digitizing remotely sensed images acquired by use of a helium filled blimp and a Canon EOS camera, we were...
Resource Type:: Masters Thesis

Determining ploidy level and nuclear DNA content in Rubus by flow cytometry

Creator:: Meng, Rengong
Abstract:: Nuclear DNA flow cytometry was used to differentiate ploidy level and determine nuclear DNA content in Rubus. Nuclei suspensions were prepared from leaf discs of young leaves following published protocols with modifications that included: increasing the stain concentration, adding the stain after the RN ase treatment instead of adding it...
Resource Type:: Masters Thesis

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