Horticulture Commons^™

Saginaw Valley Research And Extension Center 2014 Pickling Cucumber Variety Trial, Ben Phillips

Midwest Vegetable Trial Reports

No abstract provided.

Kentucky Bell Pepper Variety Trial — 2014, Shubin K. Saha, Lucas Hanks

Midwest Vegetable Trial Reports

No abstract provided.

Supersweet Sweet Corn Cultivar Evaluation For Northern Indiana, 2014, Elizabeth Maynard

Midwest Vegetable Trial Reports

Indiana sweet corn acreage harvested for fresh market averaged 5,233 acres annually from 2011- 2013, with a yield of 63 hundreweight per acre (149 crates or 3.1 tons per acre) and an annual value of $13.9 million (USDA NASS, 2014). Sweet corn fields for fresh market sales are located throughout the state. In northern Indiana, bicolor corn is most commonly grown.

Varieties with improved eating quality are of interest to both producers and consumers. The term ‘supersweet’ commonly refers to sweet corn with two copies of the shrunken-2 (sh2) gene that have high levels of sugar in the kernels and …

2014 Evaluation Of Determinate Tomato Varieties For High Tunnel Production In Kansas, Kimberly L. Oxley, Cary L. Rivard

Midwest Vegetable Trial Reports

No abstract provided.

Sugar-Enhanced And Synergistic Sweet Corn Cultivar Evaluation For Northern Indiana, 2014, Elizabeth Maynard

Purdue Fruit and Vegetable Research Reports

Indiana sweet corn acreage harvested for fresh market averaged 5,233 acres annually from 2011- 2013, with a yield of 63 hundredweight per acre (149 crates or 3.1 tons per acre) and an annual value of $13.9 million (USDA NASS, 2014).

Sweet corn fields for fresh market sales are located throughout the state. In northern Indiana, bicolor corn is most commonly grown. Varieties with improved eating quality are of interest to both producers and consumers. Producers are also interested in yield, ear size, appearance, and agronomic characteristics.

This paper reports on nine bicolor and one yellow sugar-enhanced or synergistic sweet corn …

Midwest Triploid Watermelon Variety Trial In Southwest Indiana — 2014, Dan Egel, Dennis Nowaskie, Sara Hoke

Purdue Fruit and Vegetable Research Reports

This is a compilation of 30 research trial reports from four land-grant universities in the Midwestern United States. Crops include cantaloupe, pickling cucumber, pepper, potato, pumpkin, summer squash and zucchini, sweet corn, tomato, and watermelon. Somecrops were evaluated in high tunnels or hoophouses. Most trials evaluated different cultivars or varieties. One report addressed plant spacing for sweet corn and one addressed soil block for production of tomato seedlings. A list of vegetable seed sources and a list of other online sources of vegetable trial reports are also included.

Nitrogen Release And Disease Suppressive Activity Of Four Compost Amendments On Three Vegetable Farms, Lori Hoagland, Elizabeth Maynard, Dan Egel, Natasha Cerruti, Jeff Evard, Ben Nava, Steve Spencer

Purdue Fruit and Vegetable Research Reports

This is a compilation of 30 research trial reports from four land-grant universities in the Midwestern United States. Crops include cantaloupe, pickling cucumber, pepper, potato, pumpkin, summer squash and zucchini, sweet corn, tomato, and watermelon. Somecrops were evaluated in high tunnels or hoophouses. Most trials evaluated different cultivars or varieties. One report addressed plant spacing for sweet corn and one addressed soil block for production of tomato seedlings. A list of vegetable seed sources and a list of other online sources of vegetable trial reports are also included.

Eighteen Rootstock And Five Scion Tomato Varieties: Seedling Growth Rates Before Grafting And Success In Grafting The Ninety Variety Combinations, Bizhen Hu, Jennifer Moyseenko, Stephanie Short, Sonia Walker, Matthew D. Kleinhenz

Midwest Vegetable Trial Reports

No abstract provided.

Midwest Vegetable Trial Report For 2014, Elizabeth Maynard

Purdue Fruit and Vegetable Research Reports

This is a compilation of 30 research trial reports from seven land-grant universities in the midwestern and northeastern United States. Crops covered include Asian vegetables (Napa cabbage, pak choy or bok choi, mizuna, tatsoi, Yukina savoy, komatsuna, senposai, and Tokyo bekana) broccoli, cantaloupe, cucumber, kohlrabi, pepper, potato, pumpkin, radish, sweet corn, tomato, and watermelon. Several crops were evaluated in high tunnels or hoophouses. Most trials compared different cultivars or varieties. Four reports addressed specific growing practices: the use of hairy vetch to supply nitrogen, biochar use in a high tunnel bag culture system, effects of organic soil amendments, and scion-rootstock …

Northern Ohio Pepper Variety Trial — 2014, Allen M. Gahler, Matthew Hofelich

Midwest Vegetable Trial Reports

No abstract provided.

Sugar-Enhanced And Synergistic Sweet Corn Cultivar Evaluation For Northern Indiana, 2014, Elizabeth Maynard

Midwest Vegetable Trial Reports

Indiana sweet corn acreage harvested for fresh market averaged 5,233 acres annually from 2011- 2013, with a yield of 63 hundredweight per acre (149 crates or 3.1 tons per acre) and an annual value of $13.9 million (USDA NASS, 2014).

Sweet corn fields for fresh market sales are located throughout the state. In northern Indiana, bicolor corn is most commonly grown. Varieties with improved eating quality are of interest to both producers and consumers. Producers are also interested in yield, ear size, appearance, and agronomic characteristics.

This paper reports on nine bicolor and one yellow sugar-enhanced or synergistic sweet corn …

Evaluation Of Broccoli Cultivars For Summer Crown-Cut Production In West Virginia, Lewis Jett

Midwest Vegetable Trial Reports

No abstract provided.

Kentucky Cantaloupe Variety Trial — 2014, Shubin K. Saha, Lucas Hanks

Midwest Vegetable Trial Reports

No abstract provided.

Saginaw Valley Research And Extension Center 2014 Pumpkin Variety Trial, Ben Phillips

Midwest Vegetable Trial Reports

No abstract provided.

Evaluation Of 13 Slicing Cucumbers In Southwest Michigan, Ron Goldy, Virginia Wendzel

Midwest Vegetable Trial Reports

No abstract provided.

Kentucky Triploid Watermelon Variety Trial — 2014, Shubin K. Saha, Lucas Hanks

Midwest Vegetable Trial Reports

No abstract provided.

West Virginia Pumpkin Cultivar Evaluations 2014, Lewis W. Jett, Rodney Wallbrown, J J. Barrett, J D. Johnson

Midwest Vegetable Trial Reports

No abstract provided.

Midwest Vegetable Trial Report For 2014, Elizabeth Maynard

Midwest Vegetable Trial Reports

This is a compilation of 30 research trial reports from seven land-grant universities in the midwestern and northeastern United States. Crops covered include Asian vegetables (Napa cabbage, pak choy or bok choi, mizuna, tatsoi, Yukina savoy, komatsuna, senposai, and Tokyo bekana) broccoli, cantaloupe, cucumber, kohlrabi, pepper, potato, pumpkin, radish, sweet corn, tomato, and watermelon. Several crops were evaluated in high tunnels or hoophouses. Most trials compared different cultivars or varieties. Four reports addressed specific growing practices: the use of hairy vetch to supply nitrogen, biochar use in a high tunnel bag culture system, effects of organic soil amendments, and scion-rootstock …

Efficacy Of Fungicides For Managing Powdery Mildew In Pumpkin — 2014, Margaret T. Mcgrath, Karen Lamarsh

Midwest Vegetable Trial Reports

No abstract provided.

Late Blight Resistant Tomato Variety Evaluation Conducted With Organic Production Practices — 2014, Margaret T. Mcgrath, Karen Lamarsh

Midwest Vegetable Trial Reports

No abstract provided.

Identification Of Novel Qtl Governing Root Architectural Traits In An Interspecific Soybean Population, Lakshmi P. Manavalan, Silvas J. Prince, Theresa A. Musket, Julian Chaky, Rupesh Deshmukh, Tri D. Vuong, Li Song, Perry B. Cregan, James C. Nelson, J. Grover Shannon, James E. Specht, Henry T. Nguyen

Department of Agronomy and Horticulture: Faculty Publications

Cultivated soybean (Glycine max L.) cv. Dunbar (PI 552538) and wild G. soja (PI 326582A) exhibited significant differences in root architecture and root-related traits. In this study, phenotypic variability for root traits among 251 BC₂F₅ backcross inbred lines (BILs) developed from the cross Dunbar/PI 326582A were identified. The root systems of the parents and BILs were evaluated in controlled environmental conditions using a cone system at seedling stage. The G. max parent Dunbar contributed phenotypically favorable alleles at a major quantitative trait locus on chromosome 8 (Satt315-I locus) that governed root traits (tap root length and …

Genetic And Molecular Characterization Of Submergence Response Identifies Subtol6 As A Major Submergence Tolerance Locus In Maize, Malachy T. Campbell, Christopher A. Proctor, Yongchao Dou, Aaron J. Schmitz, Piyaporn Phansak, Greg R. Kruger, Chi Zhang, Harkamal Walia

Department of Agronomy and Horticulture: Faculty Publications

Maize is highly sensitive to short term flooding and submergence. Early season flooding reduces germination, survival and growth rate of maize seedlings. We aimed to discover genetic variation for submergence tolerance in maize and elucidate the genetic basis of submergence tolerance through transcriptional profiling and linkage analysis of contrasting genotypes. A diverse set of maize nested association mapping (NAM) founder lines were screened, and two highly tolerant (Mo18Wand M162W) and sensitive (B97 and B73) genotypes were identified. Tolerant lines exhibited delayed senescence and lower oxidative stress levels compared to sensitive lines. Transcriptome analysis was performed on these inbreds to provide …

Allmaps: Robust Scaffold Ordering Based On Multiple Maps, Haibo Tang, Xingtan Zhang, Chenyong Miao, Jisen Zhang, Ray Ming, James C. Schnable, Patrick S. Schnable, Eric Lyons, Jianguo Lu

Department of Agronomy and Horticulture: Faculty Publications

The ordering and orientation of genomic scaffolds to reconstruct chromosomes is an essential step during de novo genome assembly. Because this process utilizes various mapping techniques that each provides an independent line of evidence, a combination of multiple maps can improve the accuracy of the resulting chromosomal assemblies. We present ALLMAPS, a method capable of computing a scaffold ordering that maximizes colinearity across a collection of maps. ALLMAPS is robust against common mapping errors, and generates sequences that are maximally concordant with the input maps. ALLMAPS is a useful tool in building high-quality genome assemblies. ALLMAPS is available at: https://github.com/tanghaibao/jcvi/wiki/ALLMAPS.

Effects Of Sowing Date On Phenotypic Plasticity Of Fitness-Related Traits In Two Annual Weeds On The Songnen Plain Of China, Haiyan Li, John L. Lindquist, Yunfei Yang

Department of Agronomy and Horticulture: Faculty Publications

Background Phenotypic plasticity of fitness-related traits is vital for plant species to adapt to variable environments. Chenopodium glaucum L. and Amaranthus retroflexus L. are two common weed species globally. Understanding the plasticity in life-history traits, especially in reproductive allocation, within and among these species is important for predicting their success and for managing them in different environments.

Methodology/Principal Findings Seeds of the two plant species were sown every 10 days from 26 Jun to 15 Aug. Life-history and fitness-related traits of both phenology and morphology were measured, and dry biomass of roots, stems, leaves, and reproductive tissues was determined at …

Fingerprinting Soybean Germplasm And Its Utility In Genomic Research, Qijian Song, D. L. Hyten, Gaofeng Jia, Charles V. Quigley, Edward W. Fickus, Randall L. Nelson, P. B. Cregan

Department of Agronomy and Horticulture: Faculty Publications

The United States Department of Agriculture, Soybean Germplasm Collection includes 18,480 domesticated soybean and 1,168 wild soybean accessions introduced from 84 countries or developed in the U.S. This collection was genotyped with the SoySNP50K BeadChip containing greater than 50K SNPs. Redundant accessions were identified in the collection and distinct genetic backgrounds of soybean from different geographic origins were observed that could be a unique resource for soybean genetic improvement. We detected a dramatic reduction of genetic diversity based on linkage disequilibrium and haplotype structure analyses of the wild, landrace and North American cultivar populations and identified candidate regions associated with …

Selective Genotyping For Marker Assisted Selection Strategies For Soybean Yield Improvement, Benjamin D. Fallen, Fred L. Allen, Dean A. Kopsell, Arnold M. Saxton, Leah Mchale, J. Grover Shannon, Stella K. Kantartzi, Andrea J. Cardinal, P. B. Cregan, D. L. Hyten, Vincent R. Pantalone

Department of Agronomy and Horticulture: Faculty Publications

Using molecular markers in soybean [Glycine max (L.) Merr.] has lead to the identification of major loci controlling quantitative and qualitative traits that include: disease resistance, insect resistance and tolerance to abiotic stresses. Yield has been considered as one of the most important quantitative traits in soybean breeding. Unfortunately, yield is a very complex trait and most yield quantitative trait loci (QTL) that have been identified have had only limited success for marker assisted selection (MAS). The objective of this study was to identify QTL associated with soybean seed yield in preliminary yield trials grown in different environments and …

Qtl For Seed Protein And Amino Acids In The Benning × Danbaekkong Soybean Population, C. V. Warrington, H. Abdel‑Haleem, D. L. Hyten, P. B. Cregan, J. H. Orf, A. S. Killam, N. Bajjalieh, Z. Li, H. R. Boerma

Department of Agronomy and Horticulture: Faculty Publications

Soybean, rather than nitrogen-containing forages, is the primary source of quality protein in feed formulations for domestic swine, poultry, and dairy industries. As a sole dietary source of protein, soybean is deficient in the amino acids lysine (Lys), threonine (Thr), methionine (Met), and cysteine (Cys). Increasing these amino acids would benefit the feed industry. The objective of the present study was to identify quantitative trait loci (QTL) associated with crude protein (cp) and amino acids in the ‘Benning’ × ‘Danbaekkong’ population. The population was grown in five southern USA environments. Amino acid concentrations as a fraction of cp (Lys/cp, Thr/cp, …

Using A Simple Leaf Color Chart To Estimate Leaf And Canopy Chlorophyll A Content In Maize (Zea Mays), Anthony Nguy-Robertson, Yi Peng, Timothy Arkebauer, David Scoby, James Schepers, Anatoly Gitelson

Department of Agronomy and Horticulture: Faculty Publications

This study utilized a leaf color chart (LCC) to characterize the variation in leaf chlorophyll and estimate canopy chlorophyll in maize (Zea mays). The LCC consisted of four levels of greenness and was used to sort maize leaves in 2011 for three fields near Mead, Nebraska, USA. Leaf chlorophyll content for each color chart class was determined using two leaf-level sensors. The variation within each LCC class was reasonable (CV < 56%). The darkest color class predominated and indicated adequate fertilization rates using a SPAD. Canopy chlorophyll content was estimated using destructively measured leaf area index (LAI) and the LCC. This approach was verified with a method utilizing canopy reflectance collected by both satellite imagery and a four-band radiometer. The error between the two methods was reasonable (RMSE = 0.55-0.88 g m^-2; CV = 25.6-50.4%), indicating that both leaf and canopy chlorophyll can be estimated cheaply without a wet lab or field-based sensors.

First Approximations Of Prescribed Fire Risks Relative To Other Management Techniques Used On Private Lands, Dirac L. Twidwell, Carissa L. Wonkka, Michael T. Sindelar, John R. Weir

Department of Agronomy and Horticulture: Faculty Publications

Fire is widely recognized as a critical ecological and evolutionary driver that needs to be at the forefront of land management actions if conservation targets are to be met. However, the prevailing view is that prescribed fire is riskier than other land management techniques. Perceived risks associated with the application of fire limits its use and reduces agency support for prescribed burning in the private sector. As a result, considerably less cost-share support is given for prescribed fire compared to mechanical techniques. This study tests the general perception that fire is a riskier technique relative to other land management options. …

A Genomic Selection Index Applied To Simulated And Real Data, J. Jesus Ceron-Rojas, Jose Crossa, Vivi N. Arief, Kaye Basford, Jessica Rutkoski, Diego Jarquin, Gregorio Alvarado, Yoseph Beyene, Kassa Semagn, Ian Delacy

Department of Agronomy and Horticulture: Faculty Publications

A genomic selection index (GSI) is a linear combination of genomic estimated breeding values that uses genomic markers to predict the net genetic merit and select parents from a nonphenotyped testing population. Some authors have proposed a GSI; however, they have not used simulated or real data to validate the GSI theory and have not explained how to estimate the GSI selection response and the GSI expected genetic gain per selection cycle for the unobserved traits after the first selection cycle to obtain information about the genetic gains in each subsequent selection cycle. In this paper, we develop the theory …