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Pruning Strategies For High Density ‘Montmorency' Tart Cherry, Sheriden M. Hansen 2018 Utah State University

Pruning Strategies For High Density ‘Montmorency' Tart Cherry, Sheriden M. Hansen

All Graduate Theses and Dissertations

The tart cherry (Prunus cerasus) is the most significant fruit tree crop in Utah, accounting for roughly 51% of the total statewide commercial fruit acreage. In order to accommodate harvesting equipment, tart cherries are grown in conventional orchards with large trees spaced up to 5.5 meters apart. New methods of harvest are adapted to smaller trees in tighter spaced high density (HD) orchards. HD orchards bear fruit earlier in the orchard life than conventional orchards, but likely require different pruning and management strategies, which have not yet been determined for tart cherry. Experimental HD orchards were used to determine ...


Effect Of Silicon On Wheat Growth And Development In Drought And Salinity Stress, Spencer A. Tibbitts 2018 Utah State University

Effect Of Silicon On Wheat Growth And Development In Drought And Salinity Stress, Spencer A. Tibbitts

All Graduate Theses and Dissertations

Silicon is a major component of most soils, and is found in significant concentration in plant tissue. Plants vary widely in the amount of silicon they take up, with some plants excluding it, and others using transporters to move the silicon from the soil into their roots. Early plant physiology studies were unable to determine conclusively whether silicon was essential to plant growth, but for some plants, most notably rice, it has proved to be important enough to justify fertilizing silicon deficient fields.

Researchers at the USU Crop Physiology Lab tested the effect of silicon on wheat growth and seed ...


The Manuscript Works Of S. Fred Prince (1857-1951), Sarah Burke Cahalan, Jason W. Dean 2018 University of Dayton

The Manuscript Works Of S. Fred Prince (1857-1951), Sarah Burke Cahalan, Jason W. Dean

Marian Library/IMRI Faculty Publications

S. Fred Prince, a botanical illustrator and amateur scientist, is a largely unknown artist whose work on the American landscape demonstrates his eligibility to be considered in the lineage of self-taught illustrator-naturalists such as Mark Catesby and Genevieve Jones. In this article, we present a survey of extant Prince materials identified at time of writing, describing their contents and physical characteristics. Beyond this survey and description, we also provide a biographical sketch and timeline of Prince's life.


Plants, Society, And The Environment, Thomas Harnden, Katie Bridges 2018 Georgia Highlands College

Plants, Society, And The Environment, Thomas Harnden, Katie Bridges

Biological Sciences Grants Collections

This Grants Collection for Plants, Society, and the Environment was created under a Round Six ALG Textbook Transformation Grant.

Affordable Learning Georgia Grants Collections are intended to provide faculty with the frameworks to quickly implement or revise the same materials as a Textbook Transformation Grants team, along with the aims and lessons learned from project teams during the implementation process.

Documents are in .pdf format, with a separate .docx (Word) version available for download. Each collection contains the following materials:

  • Linked Syllabus
  • Initial Proposal
  • Final Report


Genome-Wide Association Studies Of Doubled Haploid Exotic Introgression Lines For Root System Architecture Traits In Maize (Zea Mays L.), Darlene L. Sanchez, Sisi Liu, Rania Ibrahim, Michael Blanco, Thomas Lubberstedt 2018 Iowa State University

Genome-Wide Association Studies Of Doubled Haploid Exotic Introgression Lines For Root System Architecture Traits In Maize (Zea Mays L.), Darlene L. Sanchez, Sisi Liu, Rania Ibrahim, Michael Blanco, Thomas Lubberstedt

Agronomy Publications

Root system architecture (RSA) is becoming recognized as important for water and nutrient acquisition in plants. This study focuses on finding single nucleotide polymorphisms (SNPs) associated with seedling RSA traits from 300 doubled haploid (DH) lines derived from crosses between Germplasm Enhancement of Maize (GEM) accessions and inbred lines PHB47 and PHZ51. These DH lines were genotyped using 62,077 SNP markers, while root and shoot phenotype data were collected from 14-day old seedlings. Genome-wide association studies (GWAS) were conducted using three models to offset false positives/negatives. Multiple SNPs associated with seedling root traits were detected, some of which ...


Arthropod Fauna Associated With Wild And Cultivated Cranberries In Wisconsin, Shawn A. Steffan, Merritt E. Singleton, Michael L. Draney, Elissa M. Chasen, Kyle E. Johnson, Juan E. Zalapa 2018 USDA, Agricultural Research Service

Arthropod Fauna Associated With Wild And Cultivated Cranberries In Wisconsin, Shawn A. Steffan, Merritt E. Singleton, Michael L. Draney, Elissa M. Chasen, Kyle E. Johnson, Juan E. Zalapa

The Great Lakes Entomologist

The cranberry (Vaccinium macrocarpon Aiton) is an evergreen, trailing shrub native to North American peatlands. It is cultivated commercially in the US and Canada, with major production centers in Wisconsin, Massachusetts, New Jersey, Washington, Québec, and British Columbia. Despite the agricultural importance of cranberry in Wisconsin, relatively little is known of its arthropod associates, particularly the arachnid fauna. Here we report preliminary data on the insect and spider communities associated with wild and cultivated cranberries in Wisconsin. We then compare the insect and spider communities of wild cranberry systems to those of cultivated cranberries, indexed by region. Approximately 7,400 ...


Salicylic Acid Effects On Growth, Yield, And Fruit Quality Of Strawberry Cultivars, R.A. Mohamed, Al-Kharpotly Abdelbaset, D.Y Abd-Elkader 2018 Vegetable Research Dept., Horticulture Research Institute, Agric. Research Center, Dokki, Giza, Egypt

Salicylic Acid Effects On Growth, Yield, And Fruit Quality Of Strawberry Cultivars, R.A. Mohamed, Al-Kharpotly Abdelbaset, D.Y Abd-Elkader

Journal of Medicinally Active Plants

No abstract provided.


About The Cover, 2018 University of Massachusetts Amherst

About The Cover

Journal of Medicinally Active Plants

No abstract provided.


Volume 2, Chapter 17-2: Rodents - Muroidea: Non-Muridae, Janice M. Glime 2018 Michigan Technological University

Volume 2, Chapter 17-2: Rodents - Muroidea: Non-Muridae, Janice M. Glime

Bryophyte Ecology Subchapters

No abstract provided.


Volume 2, Chapter 17-3: Rodents And Bats - Non-Muroidea, Janice M. Glime 2018 Michigan Technological University

Volume 2, Chapter 17-3: Rodents And Bats - Non-Muroidea, Janice M. Glime

Bryophyte Ecology Subchapters

No abstract provided.


Mac3a And Mac3b, Two Core Subunits Of The Mos4-Associated Complex, Positively Influence Mirna Biogenesis, Shengjun Li, Kan Liu, Bangjun Zhou, Mu Li, Shuxin Zhang, Lirong Zeng, Chi Zhang, Bin Yu 2018 University of Nebraska-Lincoln

Mac3a And Mac3b, Two Core Subunits Of The Mos4-Associated Complex, Positively Influence Mirna Biogenesis, Shengjun Li, Kan Liu, Bangjun Zhou, Mu Li, Shuxin Zhang, Lirong Zeng, Chi Zhang, Bin Yu

Faculty Publications from the Center for Plant Science Innovation

MAC3A and MAC3B are conserved U-box containing proteins in eukaryotes. They are subunits of the MOS4-associated complex (MAC) that plays essential roles in plant immunity and development in Arabidopsis. However, their functional mechanisms remain elusive. Here we show that Arabidopsis thaliana MAC3A and MAC3B act redundantly in microRNA (miRNA) biogenesis. Lack of both MAC3A and MAC3B in the mac3b mac3b double mutant reduces the accumulation of miRNAs, causing elevated transcript levels of miRNA targets. mac3a mac3b also decreases the levels of primary miRNA transcripts (pri-miRNAs). However, MAC3A and MAC3B do not affect the promoter activity of genes encoding miRNAs (MIR ...


Salmonella And Fecal Indicator Bacteria Survival In Soils Amended With Poultry Manure, Claire E. Hruby, Michelle L. Soupir, Thomas B. Moorman, Carl H. Pederson, Rameshwar S. Kanwar 2018 Iowa State University

Salmonella And Fecal Indicator Bacteria Survival In Soils Amended With Poultry Manure, Claire E. Hruby, Michelle L. Soupir, Thomas B. Moorman, Carl H. Pederson, Rameshwar S. Kanwar

Agricultural and Biosystems Engineering Publications

Minimizing the risks associated with manure-borne pathogenic microorganisms requires an understanding of microbial survival under realistic field conditions. The objective of this 3-year study was to assess the fate of Salmonella (SALM) and fecal indicator bacteria (FIB), E. coli (EC) and enterococci (ENT), in glacial till-derived soils, after application of poultry manure (PM) to cornfields under chisel-plowed (CP) or no-till (NT) management. From 2010 to 2012, soil samples were obtained each spring at 0–15- and 15–30-cm depths, to determine whether over-wintering of target bacteria had occurred. Sampling was followed by application of PM at low (PM1) and high ...


Forage News [2018-02], University of Kentucky Department of Plant and Soil Sciences 2018 University of Kentucky

Forage News [2018-02], University Of Kentucky Department Of Plant And Soil Sciences

Forage News

No abstract provided.


Qtl Mapping In Three Connected Populations Reveals A Set Of Consensus Genomic Regions For Low Temperature Germination Ability In Zea Mays L., Xuhui Li, Guihua Wang, Junjie Fu, Li Li, Guangyao Jia, Lisha Ren, Thomas Lubberstedt, Guoying Wang, Jianhua Wang, Riliang Gu 2018 China Agricultural University

Qtl Mapping In Three Connected Populations Reveals A Set Of Consensus Genomic Regions For Low Temperature Germination Ability In Zea Mays L., Xuhui Li, Guihua Wang, Junjie Fu, Li Li, Guangyao Jia, Lisha Ren, Thomas Lubberstedt, Guoying Wang, Jianhua Wang, Riliang Gu

Agronomy Publications

Improving seed vigor in response to cold stress is an important breeding objective in maize that allows early sowing. Using two cold tolerant inbred lines 220 and P9-10 and two susceptible lines Y1518 and PH4CV, three connected F2:3 populations were generated for detecting quantitative trait locus (QTL) related to seed low-temperature germination ability. At 10°C, two germination traits (emergence rate and germination index) were collected from a sand bed and three seedling traits (seedling root length, shoot length, and total length) were extracted from paper rolls. Significant correlations were found among all traits in all populations. Via single-population ...


Overlapping Residual Herbicides For Control Of Photosystem (Ps) Ii- And 4-Hydroxyphenylpyruvate Dioxygenase (Hppd)-Inhibitor-Resistant Palmer Amaranth (Amaranthus Palmeri S. Watson) In Glyphosate-Resistant Maize, Parminder S. Chahal, Zahoor Ahmad Ganie, Amit J. Jhala 2018 University of Nebraska-Lincoln

Overlapping Residual Herbicides For Control Of Photosystem (Ps) Ii- And 4-Hydroxyphenylpyruvate Dioxygenase (Hppd)-Inhibitor-Resistant Palmer Amaranth (Amaranthus Palmeri S. Watson) In Glyphosate-Resistant Maize, Parminder S. Chahal, Zahoor Ahmad Ganie, Amit J. Jhala

Agronomy & Horticulture -- Faculty Publications

A Palmer amaranth (Amaranthus palmeri S. Watson) biotype has evolved resistance to photosystem (PS) II- (atrazine) and 4-hydroxyphenylpyruvate dioxygenase (HPPD)-inhibiting herbicides (mesotrione, tembotrione, and topramezone) in maize seed production field in Nebraska, USA. The objectives of this study were to determine the effect of soil residual pre-emergence (PRE) herbicides followed by (fb) tank-mixture of residual and foliar active post-emergence (POST) herbicides on PS-II- and HPPD-inhibitor-resistant Palmer amaranth control, maize yield, and net economic returns. Field experiments were conducted in a grower’s field infested with PS II- and HPPD-inhibitor-resistant Palmer amaranth near Shickley in Fillmore County, Nebraska, USA in ...


Prairie Strips Improve Biodiversity And The Delivery Of Multiple Ecosystem Services From Corn–Soybean Croplands, Lisa A. Schulte, Jarad Niemi, Matthew J. Helmers, Matt Liebman, J. Gordon Arbuckle, David E. James, Randall K. Kolka, Matthew E. O'Neal, Mark D. Tomer, John C. Tyndall, Heidi Asbjornsen, Pauline Drobney, Jeri Neal, Chris Witte 2018 Iowa State University

Prairie Strips Improve Biodiversity And The Delivery Of Multiple Ecosystem Services From Corn–Soybean Croplands, Lisa A. Schulte, Jarad Niemi, Matthew J. Helmers, Matt Liebman, J. Gordon Arbuckle, David E. James, Randall K. Kolka, Matthew E. O'Neal, Mark D. Tomer, John C. Tyndall, Heidi Asbjornsen, Pauline Drobney, Jeri Neal, Chris Witte

Jarad Niemi

Loss of biodiversity and degradation of ecosystem services from agricultural lands remain important challenges in the United States despite decades of spending on natural resource management. To date, conservation investment has emphasized engineering practices or vegetative strategies centered on monocultural plantings of nonnative plants, largely excluding native species from cropland. In a catchment-scale experiment, we quantified the multiple effects of integrating strips of native prairie species amid corn and soybean crops, with prairie strips arranged to arrest run-off on slopes. Replacing 10% of cropland with prairie strips increased biodiversity and ecosystem services with minimal impacts on crop production. Compared with ...


Generation Of Maize (Zea Mays) Doubled Haploids Via Traditional Methods, Kimberly Vanous, Adam Vanous, Ursula Frei, Thomas Lubberstedt 2018 Iowa State University

Generation Of Maize (Zea Mays) Doubled Haploids Via Traditional Methods, Kimberly Vanous, Adam Vanous, Ursula Frei, Thomas Lubberstedt

Thomas Lubberstedt

Commercial maize hybrid production has corroborated the usefulness of producing inbred lines; however, the delivery of new lines has always been a major time constraint in breeding programs. Traditional methods for developing inbred lines typically require 6 to 10 generations of self-pollination to obtain sufficient homozygosity. To bypass the time and costs associated with the development of inbred lines, doubled haploid (DH) systems have been widely adopted in the commercial production of maize. Within just two generations, DH systems can create completely homozygous and homogeneous lines. A typical maize DH system, utilizing anthocyanin markers R1-nj or Pl1 for haploid selection ...


Discrimination Of Haploid And Diploid Maize Kernels Via Multispectral Imaging, Gerald N. De La Fuente, Jens Michael Carstensen, Michael A. Edberg, Thomas Lubberstedt 2018 Iowa State University

Discrimination Of Haploid And Diploid Maize Kernels Via Multispectral Imaging, Gerald N. De La Fuente, Jens Michael Carstensen, Michael A. Edberg, Thomas Lubberstedt

Thomas Lubberstedt

The use of doubled haploids (DHs) in maize has become ubiquitous in maize breeding programmes as it allows breeders to go from cross to evaluation in as little as 2 years. Two important aspects of the in vivo DH system used in maize are as follows: (i) the identification of haploid progeny and (ii) doubling of the haploid genome to produce fertile inbred lines. This study is focused on the first step. Currently, identification of maize haploid progeny is performed manually using the R1-nj seed colour marker. This is a labour-intensive and time-consuming process; a method for automated sorting of ...


Aac Penhold Canada Prairie Spring Red Wheat, R. D. Cuthbert, R. M. DePauw, R. E. Knox, Asheesh K. Singh, T. N. McCaig, B. McCallum, T. Fetch, B. L. Beres 2018 Agriculture and Agri-Food Canada

Aac Penhold Canada Prairie Spring Red Wheat, R. D. Cuthbert, R. M. Depauw, R. E. Knox, Asheesh K. Singh, T. N. Mccaig, B. Mccallum, T. Fetch, B. L. Beres

Asheesh Singh

AAC Penhold, an awned hard red spring wheat (Triticum aestivum L.) cultivar, yielded significantly more grain than 5700PR while maturing 2 days earlier, and 7.5 cm shorter stature. The seed size was significantly larger than 5700PR and 5701PR, with a test weight significantly heavier than both checks. AAC Penhold expressed resistance to prevalent races of leaf rust and common bunt, and moderate resistance to fusarium head blight and stem rust. AAC Penhold had higher grain and flour protein than the checks and improved Hagberg Falling Number, amylograph viscosity, and water absorption. AAC Penhold is eligible for grades of the ...


Identifying New Sources Of Resistance To Brown Stem Rot In Soybean, Chantal E. McCabe, Asheesh K. Singh, Leonor F. Leandro, Silvia R. Cianzio, Michelle A. Graham 2018 Iowa State University

Identifying New Sources Of Resistance To Brown Stem Rot In Soybean, Chantal E. Mccabe, Asheesh K. Singh, Leonor F. Leandro, Silvia R. Cianzio, Michelle A. Graham

Asheesh Singh

Brown stem rot (BSR), caused by the fungus Phialophora gregata f. sp. sojae (Allington & D.W. Chamberlain) W. Gams (syn. Cadophora gregata), causes yield losses up to 38%. Three dominant BSR-resistant genes have been identified: Rbs1, Rbs2, and Rbs3. Additional BSR resistance loci will complement breeding efforts by expanding the soybean [Glycine max (L.) Merr.] genetic base. The objective of this research was to determine if PI 594637, PI 594638B, PI 594650A, and PI 594858B contained novel BSR resistance genes. The accessions were crossed to three genotypes with known BSR resistance genes and populations were developed for allelism studies. A ...


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