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The Influence Of Organically Managed High Tunnel And Open Field Production Systems On Strawberry (Fragaria X Ananassa) Quality And Yield, Tomato (Solanum Lycopersicum) Yield, And Evaluation Of Plastic Mulch Alternatives, Jeffrey Thomas Martin 2013 University of Tennessee, Knoxville

The Influence Of Organically Managed High Tunnel And Open Field Production Systems On Strawberry (Fragaria X Ananassa) Quality And Yield, Tomato (Solanum Lycopersicum) Yield, And Evaluation Of Plastic Mulch Alternatives, Jeffrey Thomas Martin

Masters Theses

High tunnels extend the production season, and increase fruit quality, yield and crop marketability of high-value crops, but have been underutilized in the Southeast. In this study, organically managed variety trials of two high-value crops, strawberry (Fragaria x ananassa) and tomato (Solanum lycopersicum), were conducted in high tunnel (HT) and open field (OF) production systems to compare yield and quality. Furthermore, specialty crops are commonly grown on black plastic mulch to increase earliness of harvest, fruit quality and yield. However, plastic disposal is time consuming and costly. Degradable mulches reduce removal costs, lessen environmental impacts, and provide functionality during the ...


Groundcover Management System And Nutrient Source Impact Physical Soil Quality Indicators In An Organically Managed Apple Orchard, Neal Mays 2013 University of Arkansas, Fayetteville

Groundcover Management System And Nutrient Source Impact Physical Soil Quality Indicators In An Organically Managed Apple Orchard, Neal Mays

Theses and Dissertations

In March 2006, four groundcover management systems (GMS) and two nutrient sources (NS) were implemented for their ability to alter the soil physical condition of a newly established, organically managed apple (Malus x domestica Borkh.) orchard. Annual applications of municipal green compost (GC), shredded office paper (SP), wood chips (WC), and mow-blow (MB) grass mulch were utilized as GMS, and NS supplied to trees were from composted poultry litter (PL), a commercial organic fertilizer (CF), or an untreated control (NF) in a 4x3 factorial study. An established, conventionally-managed orchard was located adjacent to the organic research orchard on the same ...


Local Food And Agriculture Awareness: The Literacy Of Local Produce And Agriculture In Northwest Arkansas, Kyle Colton Flynn 2013 University of Arkansas, Fayetteville

Local Food And Agriculture Awareness: The Literacy Of Local Produce And Agriculture In Northwest Arkansas, Kyle Colton Flynn

Theses and Dissertations

The Center for Disease Control and Prevention (CDC) suggests that adolescents and children, both male and female, are failing to meet the daily fruit and vegetable consumption requirements (Kim et al., 2011; Upton et al., 2012; Harris et al., 2012). Other studies have shown that with increased exposure and availability of produce, students (K-5) tend to consume more fruits and vegetables (Cullen et al., 2009; Evans et al., 2012). The purpose of this study is to identify whether Northwest Arkansas eleventh grade high school students possess experience and knowledge of local produce and agriculture. Out of 1054 students enrolled at ...


The Impact Of Gut Passage By Binturongs (Arctictus Binturong) On Seed Germination, Christina P. Colon, Ahimsa Campos-Arceiz 2013 Kingsborough Community College

The Impact Of Gut Passage By Binturongs (Arctictus Binturong) On Seed Germination, Christina P. Colon, Ahimsa Campos-Arceiz

Publications and Research

Binturongs (Arctictis binturong) are the largest of Asian civets and, due to their highly frugivorous diet, are expected to play an important role in seed dispersal processes. To study the effect of binturong gut passage on seed viability, we fed 10 captive binturongs with fruits of longan (Dimocarpus longan), papaya (Carica papaya) and chiku (Manilkara zapota), collected the seeds they defaecated, and planted these to determine seed germination rate and time. Of the defaecated seeds, 90.4% passed through binturong gut intact in under nine hours, and 99.4% passed in under 33 hours. Chiku seeds had the highest germination ...


Enhancing Value And Marketing Options For Pawpaw (Asimina Triloba) By Developing Pulp Separation And Preservation Techniques, Patrick J. O'Malley, Lester Wilson 2013 Iowa State University

Enhancing Value And Marketing Options For Pawpaw (Asimina Triloba) By Developing Pulp Separation And Preservation Techniques, Patrick J. O'Malley, Lester Wilson

Leopold Center Completed Grant Reports

Project investigators tested the potential for production and utilization of the pawpaw as an alternative crop for Iowa fruit growers. Fruit from an ongoing trial was processed and preserved for future marketing.


A Warning System For Anthracnose Fruit Rot On Strawberries, Xiaoyu Zhang, Jean C. Batzer, Mark L. Gleason 2013 Iowa State University

A Warning System For Anthracnose Fruit Rot On Strawberries, Xiaoyu Zhang, Jean C. Batzer, Mark L. Gleason

Iowa State Research Farm Progress Reports

Anthracnose fruit rot (AFR) of strawberry is caused by three Colletotrichum spp. In the Midwest, however, only Colletotrichum acutatum is found. This fungus can attach itself to apparently healthy plants and spread throughout the field without causing symptoms on the foliage. When fruit beginsto ripen and weather conditions are rainy and warm, AFR can suddenly cause great damage to the fruit. To protect against AFR where it has appeared in the past, growers need to spray every 7 to 10 days beginning at the start of bloom until harvest.


Performance Of Gibson Golden Delicious On Dwarfing Rootstocks, Paul A. Domoto, Lynn R. Schroeder 2013 Iowa State University

Performance Of Gibson Golden Delicious On Dwarfing Rootstocks, Paul A. Domoto, Lynn R. Schroeder

Iowa State Research Farm Progress Reports

To evaluate the adaptability and performance of new and promising apple rootstocks in the dwarfing size-control category, a NC-140 regional rootstock trial was established in 2003 at 14 total sites in the United States (AR, CA, IA, GA, KY, ME, MI, NY, OH, PA, UT, WI), Canada (BC), and Mexico. The Iowa planting, located at the ISU Horticulture Research Station, includes 23 rootstocks with new selectionsfrom theCornell-Geneva breeding program (G., CG.),Russia (B.), Czech Republic (J-TE), Japan (JM.), and Germany (PiAu) with M.26, M.9 Pajam 2 and M.9 T337 serving as industry standards. These rootstocks are being ...


Effects Of Temperature And Light In High Tunnel Primocane Red Raspberry Production, Leah B. Riesselman, Gail R. Nonnecke 2013 Iowa State University

Effects Of Temperature And Light In High Tunnel Primocane Red Raspberry Production, Leah B. Riesselman, Gail R. Nonnecke

Iowa State Research Farm Progress Reports

High tunnel production of primocane red raspberries extendsthe growing season, decreases winter injury, increases cane height and growth rate, and improves overall fruit quality and yield. However, tunnels have the potential to increase light intensity levels and result in high air and soil temperatures, which are detrimental to primocane red raspberry production. Soil and air temperatures above 16°C (60.8°F) and 24°C (75.2°F) and light intensity levels beyond 600 µmol·mˉ²sˉ¹ have been shown to decrease water uptake, encourage premature bud-dormancy, delay time to ripening, and reduce fruit quality and weight. The proposed study is ...


Cold Hardy Wine Grape Cultivar Trial, Paul A. Domoto, Gail R. Nonnecke, Paul Tabor, Leah B. Riesselman 2013 Iowa State University

Cold Hardy Wine Grape Cultivar Trial, Paul A. Domoto, Gail R. Nonnecke, Paul Tabor, Leah B. Riesselman

Iowa State Research Farm Progress Reports

In conjunction with the Northeast Regional Research project NE 1020 “Multi-state Evaluation of Wine Grape Cultivars and Clones,” Iowa State University established a cold hardy wine grape cultivar trial in 2008 at the ISU Horticulture Research Station (HRS) and Tabor Home Vineyards and Winery (THV) near Baldwin, IA. The Iowa trial evaluates the performance of Corot noir, La Crescent, Marquette, Petit AmiTM, NY 95.0301-01, MN-1189, MN-1200, MN-1220, MN-1235, MN-1258 with Frontenac, and St. Croix serving as controls. This report summarizes the results for the 2012 growing season.


Canopy Management Practices And Light Interception Of Northern Grape Cultivars, Dylan P. Rolfes, Gail R. Nonnecke, Paul A. Domoto 2013 Iowa State University

Canopy Management Practices And Light Interception Of Northern Grape Cultivars, Dylan P. Rolfes, Gail R. Nonnecke, Paul A. Domoto

Iowa State Research Farm Progress Reports

The recent development of Vitisriparia hybrids has allowed the expansion of the wine industry into Iowa and the Upper Midwest. These cultivars are more cold hardy and vigorous than traditional V. vinifera hybrids. During maturation the fruit tend to retain high levels of acids, exhibit a rapid rise in pH, accumulate high potassium levels, and possess a different profile of malic to tartaric acid than other hybrids. Wines from these grapes often have a “grassy” or “herbaceous” flavor. These same characteristics have been associated with fruit grown in shaded canopies. This study was undertaken as part of the USDA Northern ...


Tomato Cultivar Trial, Vincent Lawson 2013 Iowa State University

Tomato Cultivar Trial, Vincent Lawson

Iowa State Research Farm Progress Reports

The 2012 tomato trial evaluated 16 fresh market cultivars for yield potential and fruit quality when grown on black plastic mulch.


Third Year Performance Of Honeycrisp On Dwarfing Rootstocks, Paul A. Domoto, Lynn R. Schroeder 2013 Iowa State University

Third Year Performance Of Honeycrisp On Dwarfing Rootstocks, Paul A. Domoto, Lynn R. Schroeder

Iowa State Research Farm Progress Reports

To evaluate the adaptability and performance of new and promising apple rootstocks in the dwarfing size-control category, a NC-140 regional rootstock trial was established in 2010 at 12 sites in the United States (CO, IA, IL, IN, MA, MI, MN, NJ, NY, OH, UT, WI), two sites in Canada (BC, NS), and one site in Mexico (CHIH) with Honeycrisp serving as the test cultivar. The Iowa planting, located at the ISU Horticulture Research Station, includes 31 rootstocks with new selections from theCornell-Geneva breeding program (G., CG.),Russia (B.), and Germany (PiAu , Supp.), with M.26, M.9 Pajam 2 and ...


Effect Of Lime Sulfurthinning Sprays On Return Bloom Of Scab-Resistant Apples, Paul A. Domoto, Dennis Katuuramu, Gail R. Nonnecke, Lynn R. Schroeder 2013 Iowa State University

Effect Of Lime Sulfurthinning Sprays On Return Bloom Of Scab-Resistant Apples, Paul A. Domoto, Dennis Katuuramu, Gail R. Nonnecke, Lynn R. Schroeder

Iowa State Research Farm Progress Reports

Growing scab-resistant apple cultivars on fully dwarfing rootstocksincreasesthe feasibility for producing organically grown apples in the Midwest. However, in an organic orchard, fruit thinning to optimize crop load must be done by hand at a very high labor expense or biennial bearing and inconsistent supply to meet consumer demandsis accepted. In 2011, a study was undertaken to evaluate the effectiveness of liquid lime sulfur alone and in combination with spray oil applied at various times during bloom on thinning three scabresistant apple cultivars under Iowa conditions, and was reported in the 2011 Annual Progress Reports for the ISU Horticulture Research ...


Comparative Analysis Of Grapevine Whole-Genome Gene Predictions, Functional Annotation, Categorization And Integration Of The Predicted Gene Sequences, Jérôme` Grimplet, John L. Van Hemert, Pablo Carbonell-Bejerano, José Díaz-Riquelme, Julie A. Dickerson, Anne Fennell, Mario Pezzotti, José M. Martínez-Zapater 2012 Universidad de La Rioja

Comparative Analysis Of Grapevine Whole-Genome Gene Predictions, Functional Annotation, Categorization And Integration Of The Predicted Gene Sequences, Jérôme` Grimplet, John L. Van Hemert, Pablo Carbonell-Bejerano, José Díaz-Riquelme, Julie A. Dickerson, Anne Fennell, Mario Pezzotti, José M. Martínez-Zapater

Electrical and Computer Engineering Publications

Background
The first draft assembly and gene prediction of the grapevine genome (8X base coverage) was made available to the scientific community in 2007, and functional annotation was developed on this gene prediction. Since then additional Sanger sequences were added to the 8X sequences pool and a new version of the genomic sequence with superior base coverage (12X) was produced.

Results
In order to more efficiently annotate the function of the genes predicted in the new assembly, it is important to build on as much of the previous work as possible, by transferring 8X annotation of the genome to the ...


Strawberry Growth, Yield, Fruit Nutrition, And Control Of Verticillium Wilt With Pre-Plant Soil Fumigants, Ozone, And Biological Control, Justin J. Scurich 2012 California Polytechnic State University - San Luis Obispo

Strawberry Growth, Yield, Fruit Nutrition, And Control Of Verticillium Wilt With Pre-Plant Soil Fumigants, Ozone, And Biological Control, Justin J. Scurich

Master's Theses and Project Reports

Verticillium wilt is a widespread soilborne disease of strawberry historically controlled by soil fumigation with methyl bromide (MB). MB was banned by the United Nations in 1995 and will be completely phased out by 2015. Research has concentrated on alternative methods of disease control without finding a single alternative able to replace MB in widespread disease control and yield increase. For the current study, strawberries were greenhouse grown in container pots filled with soil from both infested and non-infested areas of a commercial strawberry field in Watsonville, CA. Treatments included pre-plant soil fumigation with commercially available formulations of methyl bromide ...


Survey Of Blueberry (Vaccinium Spp.) Problems In The Gulf South, Kenneth Curry 2012 University of Southern Mississippi

Survey Of Blueberry (Vaccinium Spp.) Problems In The Gulf South, Kenneth Curry

Kenneth J. Curry

The blueberry (Vaccinium) industry in Mississippi has been steadily increasing since the early 1980s, but some plants in older fields are now in decline. The root rot pathogen, Phytophthora cinnamomi, is endemic in the southeastern United States and has caused severe losses to blueberries in North Carolina and Arkansas. Because the warm, humid climate of Mississippi, with periods of high precipitation, provides a favorable environment for Phytophthora root rot disease, it was suspected to be the cause of plant decline in older blueberry fields. Members of the Gulf South Blueberry Growers Association were mailed surveys to determine cultural practices and ...


Potential For Barn Owl As Rodent Biological Control In Central California Vineyards, Hannah Tillmann 2012 California Polytechnic State University - San Luis Obispo

Potential For Barn Owl As Rodent Biological Control In Central California Vineyards, Hannah Tillmann

Biological Sciences

The pocket gopher (Thomomys bottae) and voles (Microtus spp.) cause significant economic damage to vineyards. In response, many growers have taken steps to attract Barn Owls (Tyto alba) to their properties to help keep these rodent populations in check. This research project investigated Barn Owl consumption of pocket gophers and voles in Central California vineyards in order to assess the efficiency of this integrated pest management strategy. I collected a total of 715 owl pellets from five vineyard locations in Templeton and Paso Robles, California over an eight-month period during nesting and post-fledging seasons. I identified seven prey species within ...


Acetylcholinesterase Inhibition By Nootkatone And Carvacrol In Arthropods, Jennifer A. Anderson, Joel R. Coats 2012 Iowa State University

Acetylcholinesterase Inhibition By Nootkatone And Carvacrol In Arthropods, Jennifer A. Anderson, Joel R. Coats

Entomology Publications

The essential oils from many botanicals have been screened for insecticidal activity. Two constituents of the Alaskan yellow cedar tree, the monoterpenoid carvacrol and the sesquiterpenoid nootkatone, both are toxic against several arthropods. The mode of action through which nootkatone and carvacrol exert their insecticidal activity remains uncertain. It has been hypothesized that they may inhibit acetylcholinesterase enzyme activity. The degree of acetylcholinesterase inhibition of carvacrol and nootkatone was compared to that of carbaryl, a known acetylcholinesterase inhibitor, in the house fly (Musca domestica), yellow fever mosquito (Aedes aegypti), American dog tick (Dermacentor variabilis) and American cockroach (Periplaneta americana). The ...


Developing Production, Processing And Marketing Of Aronia Berries On Small Family Farms In Southeast Iowa, Patrick J. O'Malley 2012 Iowa State University

Developing Production, Processing And Marketing Of Aronia Berries On Small Family Farms In Southeast Iowa, Patrick J. O'Malley

Leopold Center Completed Grant Reports

ISU Extension and Outreach specialists worked with several stakeholder groups to educate southeast Iowa farmers about the aronia berry, a crop new to Iowa with potential for market growth.


Effects Of Leaf Removal On Fruit Quality Of Wine Grapes Grown In Iowa, Dennis N. Portz, Leah B. Riesselman, Crystal Seeley, Paul Beamer, Gail R. Nonnecke 2012 Iowa State University

Effects Of Leaf Removal On Fruit Quality Of Wine Grapes Grown In Iowa, Dennis N. Portz, Leah B. Riesselman, Crystal Seeley, Paul Beamer, Gail R. Nonnecke

Iowa State Research Farm Progress Reports

Leaf removal practices are common in many viticulture regions, leading to improved fruit quality. However, little research has been done on the benefits and challenges of leaf removal on cold-climate grape cultivars grown in the Upper Midwest that have high acidity. Potential benefits of leaf removal include increased canopy air circulation and sunlight exposure, decreased cluster disease, and improved flavor, pH, and titratable acidity (TA). Potential leaf removal challenges include fruit sunburn, fewer photosynthesizing leaves around clusters, production of fruit offflavors, and increased production cost due to labor-intensive leaf removal. The objective of this study was to determine if leaf ...


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