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Comparative Evaluation Of The Effect Of Methyl Bromide Fumigation And Phytosanitary Irradiation On The Quality Of Fresh Strawberries, Tamar Serapian, Anuradha Prakash 2016 Chapman University

Comparative Evaluation Of The Effect Of Methyl Bromide Fumigation And Phytosanitary Irradiation On The Quality Of Fresh Strawberries, Tamar Serapian, Anuradha Prakash

Food Science Faculty Articles and Research

Fresh strawberries are highly perishable and have a short shelf-life especially when the cold chain is not maintained. Strawberries exported to Asia are currently fumigated with methyl bromide for phytosanitary purposes, which exposes strawberries to warm temperatures for several hours and air freight without temperature control, resulting in a shelf life of just a few days in the destination country. Irradiation offers an efficacious alternative to fumigation and can be performed on cold fruit. This study was conducted to compare the quality of strawberries subject to methyl bromide fumigation or irradiation followed by simulated commercial air freight shipment of strawberries ...


Propagating Jujubes, Rachelle Johnstone 2016 Department of Agriculture and Food, Western Australia

Propagating Jujubes, Rachelle Johnstone

Research Reports

Jujubes can be propagated by various methods such as wedge/cleft grafting, whip grafting and bark grafting as well as budding. Local propagators have better success with budding but find that wedge grafting leads to a stronger tree. Most of the latest research into propagation is in micropropagation and tissue culture however this technique is mainly used for research and breeding new cultivars and not in a commercial capacity. Grafting can be more of an art than a science. Much of the success of grafting depends on not only performing a technically correct graft but performing the graft at the ...


Polyphenol Content And Differential Expression Of Flavonoid Biosynthetic Pathway Genes Of Fragaria Spp. With White Fruit, Sutapa Roy 2016 University of Kentucky

Polyphenol Content And Differential Expression Of Flavonoid Biosynthetic Pathway Genes Of Fragaria Spp. With White Fruit, Sutapa Roy

Theses and Dissertations--Plant and Soil Sciences

Strawberries are a rich source of polyphenols which contribute to berry color and plant disease resistance, and have been shown to lower the risk of many chronic when consumed. While a considerable body of work exists on the polyphenolic composition of commercial strawberry (Fragaria x ananassa Duch.), less information is available concerning polyphenols in Fragaria vesca, or Alpine strawberry, considered a model system for the Rosaceae family of crop species. The study of natural and genetically-engineered F. vesca mutants with white fruit can provide unique insight into regulation of metabolic flux through the complex branched phenylpropanoid/flavonoid biosynthetic pathway. Thus ...


Organic Practices For The Production Of Muskmelon, Hayley Nelson, Mark Gleason 2016 Iowa State University

Organic Practices For The Production Of Muskmelon, Hayley Nelson, Mark Gleason

Farm Progress Reports

Cucumber beetles provide a unique challenge to growers of muskmelon and other cucurbit crops in the Midwest. Spotted and striped cucumber beetles transmit bacterial wilt by feeding on infected plants. Beetles ingest the bacteria (Erwinia tracheiphila) and overwinter in soil. After emerging the following spring, beetles fly to nearby cucurbit crops to feed, continuing to spread bacterial wilt disease from plant to plant.


Evaluation Of Grafted And Nongrafted Hybrid And Heirloom Tomatoes In A Midwest High-Tunnel Production System, Kristine Neu, Ajay Nair 2016 Iowa State University

Evaluation Of Grafted And Nongrafted Hybrid And Heirloom Tomatoes In A Midwest High-Tunnel Production System, Kristine Neu, Ajay Nair

Farm Progress Reports

High tunnels have emerged as a tool for Iowa vegetable growers to extend the growing season, increase crop production, and improve quality of the produce, but production in this system does not come without challenges. Continuous cropping of tomatoes in the same high tunnel gives rise to recurring soil-borne and foliar diseases, pest pressure, issues with soil fertility and salinity, and increased irrigation requirements. One tool to overcome these challenges may be the use of vegetable grafting. The process of grafting is accomplished by attaching a desired scion onto a rootstock that is typically bred for vigor and/or disease ...


Sixth Year Performance Of Honeycrisp Grafted On 31 Dwarfing Rootstocks Of The Nc-140regional Apple Rootstock Trial, Glen Rippke, Diana Cochran, Lynn Schroeder 2016 Iowa State University

Sixth Year Performance Of Honeycrisp Grafted On 31 Dwarfing Rootstocks Of The Nc-140regional Apple Rootstock Trial, Glen Rippke, Diana Cochran, Lynn Schroeder

Farm Progress Reports

Introduction Dwarfing rootstocks have the potential to increase profitability of tree-fruit growers by providing smaller trees suitable for high density plantings. Although the initial installation cost can be 10 to 30 times more than lower-density plantings, the long-range returns can far exceed the traditional plantings. However, to be viable as a commercial rootstock, dwarfing rootstocks must be adapted to a range of agro-climatic conditions, moderately disease resistant, high yielding, and produce quality fruit.


Bacterial Wilt Management In Muskmelonusing Perimeter Trap Cropping, Hayley Nelson, Mark Gleason 2016 Iowa State University

Bacterial Wilt Management In Muskmelonusing Perimeter Trap Cropping, Hayley Nelson, Mark Gleason

Farm Progress Reports

Spotted and striped cucumber beetles transmit bacterial wilt by feeding on infected plants. Bacterial wilt is devastating to cucurbit crops, especially muskmelon. Frequent applications of insecticides are the main form of control against cucumber beetles. Perimeter trap cropping (PTC) is a relatively new technique aimed at reducing insecticide sprays and the spread of bacterial wilt. PTC involves planting a border crop (usually 2 rows) that is highly attractive to beetles around a less attractive main crop. Cucumber beetles concentrate on the more attractive perimeter crop, and growers focus most of their insecticide applications on that limited area, reducing pesticide use.


Effects Of Tillage And Cover Crops On Muskmelon Production And Food Safety, John Krzton-Presson, Ajay Nair, Angela Shaw 2016 Iowa State University

Effects Of Tillage And Cover Crops On Muskmelon Production And Food Safety, John Krzton-Presson, Ajay Nair, Angela Shaw

Farm Progress Reports

Reduced tillage has been widely adopted in production of agronomic crops for its potential to improve soil health and reduce input costs. Despite this, vegetable growers largely rely on conventional tillage to incorporate crop residue, control weeds, and to prepare a seed bed for planting.


Evaluation Of Select Herbicides On Non-Bearing Crops, Diana Cochran 2016 Iowa State University

Evaluation Of Select Herbicides On Non-Bearing Crops, Diana Cochran

Farm Progress Reports

This study was conducted as part of the IR-4 Project to investigate herbicide phytotoxicity on two growth stages of shadblow serviceberry (Amelanchier canadensis), MalusGinger Gold apple (Malus × Ginger Gold), Spartan apple (Malus × Spartan), northern pecan (Carya illinoensis), Spanish chestnut (Castanea sativa), and Blackgold cherry (Prunus Blackgold).


Letter From The Dean, Lona Robertson 2016 University of Arkansas, Fayetteville

Letter From The Dean, Lona Robertson

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.


Effect Of Timing Of Shade On Growth, Development, Physiology, And Fruiting Of A Primocane Fruiting Blackberry In A Controlled Environment, Olivia C. Caillouet, Curt C. Rom, Jason McAfee, Luke Freeman, Heather Friedrich 2016 University of Arkansas, Fayetteville

Effect Of Timing Of Shade On Growth, Development, Physiology, And Fruiting Of A Primocane Fruiting Blackberry In A Controlled Environment, Olivia C. Caillouet, Curt C. Rom, Jason Mcafee, Luke Freeman, Heather Friedrich

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

Primocane blackberry production in the upper south is limited by high temperatures during the bloom and early fruiting period, resulting in poor fruit set and poor fruit quality. Shade may have the potential to delay bloom and flowering to a more favorable season. A greenhouse study was established to evaluate the effects of shade on primocane blackberry growth, physiology, and fruiting. Single rooted plants of ‘Prime-Ark® 45’ were planted in 12-liter pots and grown in a greenhouse at the University of Arkansas System Division of Agriculture, Agriculture Research and Extension Center, Fayetteville, Arkansas. At approximately 0.25 m in height ...


The Effects Of Shade On Primocane Fruiting Blackberries In The Field, Olivia C. Caillouet, Curt C. Rom, Jason McAfee, Luke Freeman, Heather Friedrich 2016 University of Arkansas, Fayetteville

The Effects Of Shade On Primocane Fruiting Blackberries In The Field, Olivia C. Caillouet, Curt C. Rom, Jason Mcafee, Luke Freeman, Heather Friedrich

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

Primocane fruiting blackberry production in Arkansas is limited by heat during the flowering and early fruiting season. Shade could be used to delay flowering and fruiting to more favorable growth period. This study was designed to test three levels of shade (0% [control], 30% and 50% shading) applied at three times during the growing season that examined the growth, development, physiology of flowering, and fruiting of ‘Prime-Ark® 45’ blackberries. The seven treatments were as follows: 1) an untreated control (CK), 2) early shade 30% (ES30), mid shade 30% (MS30), 4) late shade 30% (LS30), 5) early shade 50% (ES50), 6 ...


Evaluation Of Harvest Time/Temperature And Storage Temperature On Postharvest Incidence Of Red Drupelet Reversion Development And Firmness Of Blackberry (Rubus L. Subgenus Rubus Watson), Jack E. McCoy, John R. Clarke, Alejandra A. Salgado, Andrew Jecmen 2016 University of Arkansas, Fayetteville

Evaluation Of Harvest Time/Temperature And Storage Temperature On Postharvest Incidence Of Red Drupelet Reversion Development And Firmness Of Blackberry (Rubus L. Subgenus Rubus Watson), Jack E. Mccoy, John R. Clarke, Alejandra A. Salgado, Andrew Jecmen

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

Since 1964, the University of Arkansas blackberry breeding program has worked to improve fruit quality and shipping capabilities. A major limitation in blackberry fruit is postharvest handling potential for the shipping market. Maintaining fruit firmness in storage is crucial. Red drupelet reversion (or simply reversion) is also an important postharvest disorder in which drupelets change from black to red during storage. It is hypothesized that reversion is increased when fruit is picked at hot temperatures and exposed to a rapid change of temperature. These studies evaluated harvest time/temperature, as well as storage temperature, on berry firmness and the incidence ...


Vegetables, Fruits & Herbs Book, Utah State University 2016 Utah State University

Vegetables, Fruits & Herbs Book, Utah State University

All Current Publications

This book is a compilation of 58 researched-based fact sheets written and compiled by Utah State University faculty and students. For more gardening resources provided by USU Extension please visit our gardening website at garden.usu.edu.


Available Nitrogen And Denitrification In Soil Altered By Ground Cover And Nutrient Source In An Organic Apple Orchard, Jade Nicole Ford 2015 University of Arkansas, Fayetteville

Available Nitrogen And Denitrification In Soil Altered By Ground Cover And Nutrient Source In An Organic Apple Orchard, Jade Nicole Ford

Theses and Dissertations

A shift in public demand towards more organic and locally produced fruit and vegetables has been occurring across the United States in recent years. A common practice in organic fruit production is the application of organic ground covers to supply nutrients while enhancing other soil properties. A need for research exists in the southern region of the U.S. examining the effects of regionally applicable ground cover and nutrient management on nitrogen availability and the microbial community to provide information to organic farmers in the region. Two studies were conducted to determine how 12 treatment combinations of four ground covers ...


Blackberry Virosome: A Micro And Macro Approach, Archana Khadgi 2015 University of Arkansas, Fayetteville

Blackberry Virosome: A Micro And Macro Approach, Archana Khadgi

Theses and Dissertations

Viruses pose a major concern for blackberry production around the world with more than 40 species known to infect the crop. Virus complexes have been identified recently as the major cause of plant decline with blackberry yellow vein disease (BYVD) being the most important disease of the crop in the Southern United States. The objective of this research was to study the blackberry virosome in both the macro and micro scale. The large scale approach involves identification of the major viruses known to be associated with BYVD in the Southern United States as well as the identification of other viruses ...


Applying Molecular And Phenotypic Tools To Characterize Flesh Texture And Acidity Traits In The Arkansas Peach Breeding Program And Understanding The Crispy Texture In The Arkansas Blackberry Breeding Program, Alejandra Andrea Salgado Rojas 2015 University of Arkansas, Fayetteville

Applying Molecular And Phenotypic Tools To Characterize Flesh Texture And Acidity Traits In The Arkansas Peach Breeding Program And Understanding The Crispy Texture In The Arkansas Blackberry Breeding Program, Alejandra Andrea Salgado Rojas

Theses and Dissertations

Quantitative trait loci (QTL) utilizing a pedigree-based analysis (PBA) approach was performed in the peach breeding program for the first time. The pedigree consisted of seven-F1 populations, their parents, ancestors, and cultivars. Flesh firmness and titratable acidity (TA) were examined in 2011, 2012, and 2013. For TA, a consistent and strong QTL was identified on the proximal end of linkage group (LG) 5 of the peach genome. For flesh firmness, two QTLs were located on LG 4. The first QTL was located on the chromosomal region where the slow-melting flesh (SMF) DNA test was identified, and the second QTL was ...


The Enhancement Of Wild Bees (Hymenoptera: Apoidea) For Pollination Security, Eric M. Venturini 2015 University of Maine

The Enhancement Of Wild Bees (Hymenoptera: Apoidea) For Pollination Security, Eric M. Venturini

Electronic Theses and Dissertations

The acreage of pollinator-dependent crops continues to expand across the globe. Simultaneously, honey bee hives – an annually rented commodity that growers rely on – are more expensive every year and in some cases, scarce. In response, pollinator-dependent growers seek alternative pollinators. One approach is installing bee pasture on farms, a strategy that enables systems-based farmers to become in-situ farm-scale habitat managers. This thesis first presents a review of the literature on bee pasture plantings and provides a brief overview of some methods for assessing their impacts on the pollinator community. There are three major gaps in current bee pasture research. First ...


Mangiferin As A Biomarker For Mango Anthracnose Resistance, Herma Pierre 2015 Department of Earth and Environment

Mangiferin As A Biomarker For Mango Anthracnose Resistance, Herma Pierre

FIU Electronic Theses and Dissertations

Mangos (Mangifera indica L.) are tropical/subtropical fruits belonging to the plant family Anacardiaceae. Anthracnose is the most deleterious disease of mango both in the field and during postharvest handling. It is most commonly caused by the Colletotrichum gloeosporioides complex. Mangiferin, a xanthanoid compound found in at least twelve plant families worldwide (Luo et al., 2012), is present in large amounts of the leaves and edible mangos. Even though this compound plays a pivotal role in the plant’s defense against biotic and abiotic stressors, no correlations been made between the compound and mango anthracnose resistance.

Mangos were collected, grouped ...


Accessing Chilling Conditions For Perennial Fruit Crop Production In Kentucky, Yao Xue 2015 Western Kentucky University

Accessing Chilling Conditions For Perennial Fruit Crop Production In Kentucky, Yao Xue

Masters Theses & Specialist Projects

Temperate Region fruit and nut trees, and many other perennial plants, require cool winter temperatures (chilling hours) to ensure leaf and flower bud production in the following season. Temperate Regions are characterized by variable winter and spring temperatures. Failure of meeting sufficient chilling requirement results in deformed fruits, unequal maturation, and other plant deformities, thereby reducing quality and yields. Chilling requirements are expressed as number of accumulated hours within a range of approximately 32º to 45ºF or 0º to 7.2ºC. These requirements are specific for level of temperature, length of temperature period, and species and cultivar of plants. Information ...


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