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Sapling, Erin C. Rowekamp, Eric B. Borth, Julia I. Chapman, Ryan W. Mcewan

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No abstract provided.

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Lonicera Maackii Berry Leachate Toxicity: Survival And Mass, Kevin W. Custer, Eric B. Borth, Julia I. Chapman, Ryan W. Mcewan

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In-stream (in situ) and in-lab microcosm trials using Hyalella azteca, Anthopotamus verticis, and Allocapnia spp.

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Honeysuckle, Erin C. Rowekamp, Eric B. Borth, Julia I. Chapman, Ryan W. Mcewan

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No abstract provided.

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Probe Data, Charlotte A. Shade, Kevin W. Custer, Julia I. Chapman, Ryan W. Mcewan

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Temperature, Dissolved oxygen, Conductivity, pH, Total dissolved solids

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Terrestrial Fine Woody Debris, Erin C. Rowekamp, Julia I. Chapman, Ryan W. Mcewan

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No abstract provided.

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Herbaceous Vegetation: August, Julia I. Chapman, Margaret E. Maloney, Erin C. Rowekamp, Mitchell J. Kukla, Sean D. Mahoney, Eric B. Borth, Ryan W. Mcewan

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August

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Time To Colonization Trial Data, Margaret E. Maloney, Eric B. Borth, Julia I. Chapman, Ryan W. Mcewan

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No abstract provided.

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Lonicera Maackii Flower Leachate Toxicity: Physicochemical Data, Kevin W. Custer, Julia I. Chapman, Ryan W. Mcewan

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In-stream (in situ) and in-lab microcosm trials using Hyalella Azteca and Anthopotamus verticis

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Twig And Fruit Litter Basket, Erin C. Rowekamp, Taylor M. Buskey, Julia I. Chapman, Ryan W. Mcewan

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No abstract provided.

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Lonicera Maackii Berry Leachate Toxicity: Length, Kevin W. Custer, Eric B. Borth, Julia I. Chapman, Ryan W. Mcewan

Data Files

In-stream (in situ) and in-lab microcosm trials using Hyalella azteca, Anthopotamus verticis, and Allocapnia spp.

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Site Population Trial Data, Margaret E. Maloney, Eric B. Borth, Julia I. Chapman, Ryan W. Mcewan

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No abstract provided.

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Chemical Analysis Data, Charlotte A. Shade, Kevin W. Custer, Julia I. Chapman, Ryan W. Mcewan

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Hardness, Alkalinity, Orthophosphate, Soluble reactive phosphorus, Total suspended solids, Dissolved organic carbon, Total Kjeldahl nitrogen, Nitrate:Nitrite ratio

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Aquatic Fine Woody Debris, Erin C. Rowekamp, Julia I. Chapman, Ryan W. Mcewan

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No abstract provided.

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Prototype Data, Margaret E. Maloney, Eric B. Borth, Julia I. Chapman, Ryan W. Mcewan

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No abstract provided.

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Lonicera Maackii Leaf Feeding Tests: Initial Mass, Kevin W. Custer, Julia I. Chapman, Ryan W. Mcewan

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Lymnaea stagnalis, Hyalella Azteca, and Allocapnia spp.

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Lonicera Maackii Leaf Feeding Tests: Physicochemical Data, Kevin W. Custer, Julia I. Chapman, Ryan W. Mcewan

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Lymnaea stagnalis, Hyalella Azteca, and Allocapnia spp.

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Lonicera Maackii Flower Leachate Toxicity: Survival And Mass, Kevin W. Custer, Julia I. Chapman, Ryan W. Mcewan

Data Files

In-stream (in situ) and in-lab microcosm trials using Hyalella Azteca and Anthopotamus verticis

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Leaf Litter Basket, Erin C. Rowekamp, Taylor M. Buskey, Julia I. Chapman, Ryan W. Mcewan

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No abstract provided.

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Seedling, Erin C. Rowekamp, Eric B. Borth, Julia I. Chapman, Ryan W. Mcewan

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No abstract provided.

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Aquatic Coarse Woody Debris, Erin C. Rowekamp, Julia I. Chapman, Ryan W. Mcewan

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No abstract provided.

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Biofilm Ash Free Dry Mass And Chlorophyll A, Kevin W. Custer, Sean D. Mahoney, Mitchell J. Kukla, Corey Kuminecz, Joseph Murphy, Julia I. Chapman, Ryan W. Mcewan

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No abstract provided.

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Letter From The Dean, Deacue Fields

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

No abstract provided.

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Resolving The Position Of Astragalus Borysthenicus Klokov Within The Astragalus L. Species, Nataliia Karpenko, Viktoriia Martyniuk, Oksana Tyshchenko, Andrii Tarieiev, Ayten Tekpinar, Vitaliia Didenko, Igor Kostikov

Turkish Journal of Botany

The present study is focused on several species from the genus Astragalus L. with the aim to clarify the taxonomic status of Ukrainian local endemic species Astragalus borysthenicus Klokov, which is sometimes considered a synonym to A. onobrychis L. In this study, the morphological features, current taxonomy, taxonomical history, and phylogenetic analysis based on rDNA Bayesian inference, as well as comparative analysis of ITS1 and ITS2 secondary structures, were investigated. It was found that A. borysthenicus is distant from A. onobrychis according to phylogenetic analysis. Moreover, A. borysthenicus has differences from the investigated taxa in its secondary structures of ITS1 …

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Managing Wicked Herbicide-Resistance: Lessons From The Field, Jill Schroeder, Michael Barrett, David R. Shaw, Amy B. Asmus, Harold Coble, David Ervin, Raymond A. Jussaume Jr., Michael D. K. Owen, Ian Burke, Cody F. Creech, A. Stanley Culpepper, William S. Curran, Darrin M. Dodds, Todd A. Gaines, Jeffrey L. Gunsolus, Bradley D. Hanson, Prashant Jha, Annie E. Klodd, Andrew R. Kniss, Ramon G. Leon, Sandra Mcdonald, Don W. Morishita, Brian J. Schutte, Christy L. Sprague, Phillip W. Stahlman, Larry E. Steckel, Mark J. Vangessel

Department of Agronomy and Horticulture: Faculty Publications

Herbicide resistance is ‘wicked’ in nature; therefore, results of the many educational efforts to encourage diversification of weed control practices in the United States have been mixed. It is clear that we do not sufficiently understand the totality of the grassroots obstacles, concerns, challenges, and specific solutions needed for varied crop production systems. Weed management issues and solutions vary with such variables as management styles, regions, cropping systems, and available or affordable technologies. Therefore, to help the weed science community better understand the needs and ideas of those directly dealing with herbicide resistance, seven half-day regional listening sessions were held …

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Growth, Fitness, And Overwinter Survival Of A Shattercane (Sorghum Bicolor Ssp. Drummondii) × Grain Sorghum (Sorghum Bicolor Ssp. Bicolor) F2 Population, Jared J. Schmidt, Melinda K. Yerka, Jeffrey F. Pedersen, John L. Lindquist

Department of Agronomy and Horticulture: Faculty Publications

Although sorghum [Sorghum bicolor (L.) Moench ssp. bicolor] is the fifth most important grain crop in terms of global production, no commercial hybrids carry genetically engineered (GE) traits for resistance to insect pests or herbicides due to regulatory concerns about gene flow to weedy relatives. However, non-GE herbicide resistance currently is being developed in grain sorghum and will likely transfer to related weeds. Monitoring the impact of this new nuclear technology on the evolution and invasiveness of related weeds requires a baseline understanding of the population biology of grain sorghum genes once they transfer to in situ weed …

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Phenotypic Data From Inbred Parents Can Improve Genomic Prediction In Pearl Millet Hybrids, Zhikai Liang, Shashi K. Gupta, Cheng-Ting Yeh, Yang Zhang, Daniel W. Ngu, Ramesh Kumar, Hemant T. Patil, Kanulal D. Mungra, Dev Vart Yadav, Abhishek Rathore, Rakesh K. Srivastava, Rajeev Gupta, Jinliang Yang, Rajeev K. Varshney, Patrick S. Schnable, James C. Schnable

Department of Agronomy and Horticulture: Faculty Publications

Pearl millet is a non-model grain and fodder crop adapted to extremely hot and dry environments globally. In India, a great deal of public and private sectors’ investment has focused on developing pearl millet single cross hybrids based on the cytoplasmic-genetic male sterility (CMS) system, while in Africa most pearl millet production relies on open pollinated varieties. Pearl millet lines were phenotyped for both the inbred parents and hybrids stage. Many breeding efforts focus on phenotypic selection of inbred parents to generate improved parental lines and hybrids. This study evaluated two genotyping techniques and four genomic selection schemes in pearl …

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Isolation And Analysis Of Microbial Communities In Soil, Rhizosphere, And Roots In Perennial Grass Experiments, Morgan R. Mcpherson, Peng Wang, Robert B. Mitchell, Daniel P. Schachtman

Department of Agronomy and Horticulture: Faculty Publications

Plant and soil microbiome studies are becoming increasingly important for understanding the roles microorganisms play in agricultural productivity. The purpose of this manuscript is to provide detail on how to rapidly sample soil, rhizosphere, and endosphere of replicated field trials and analyze changes that may occur in the microbial communities due to sample type, treatment, and plant genotype. The experiment used to demonstrate these methods consists of replicated field plots containing two, pure, warm-season grasses (Panicum virgatum and Andropogon gerardii) and a low-diversity grass mixture (A. gerardii, Sorghastrum nutans, and Bouteloua curtipendula). Briefly, plants …

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Hunger In The Land Of Plenty: Local Responses To Food Insecurity In Iowa, Gabrielle E. Roesch-Mcnally, Jacqueline Ann Nester, Andrea D. Basche, Eric Christianson, Emily Zimmerman

Department of Agronomy and Horticulture: Faculty Publications

Story County (estimated population 92,406 in 2013) lies in the heart of central Iowa, a state renowned for its remarkable agricultural productivity. Iowa leads all states for production of corn, soybean, and hogs. Revenues from agricultural products in Iowa total more than $30 billion annually according the 2012 Agricultural Census (USDA-NASS 2014). This productivity stems from a favorable natural and political environment. The temperate climate, productive soils, and gentle topography are ideal for our production system of commodity agriculture facilitated by federal policies, which include subsidized crop insurance and commodity payments (Horrigan, Lawrence, and Walker 2002). Despite this productivity and …

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Social–Ecological Landscape Patterns Predict Woody Encroachment From Native Tree Plantings In A Temperate Grassland, Victoria M. Donovan, Jessica L. Burnett, Christine H. Bielski, Hannah E. Birge, Rebecca Bevans, Dirac L. Twidwell Jr, Craig R. Allen

Department of Agronomy and Horticulture: Faculty Publications

Afforestation is often viewed as the purposeful planting of trees in historically non-forested grasslands, but an unintended consequence is woody encroachment, which should be considered part of the afforestation process. In North America’s temperate grassland biome, Eastern redcedar (Juniperus virginiana L.) is a native species used in tree plantings that aggressively invades in the absence of controlling processes. Cedar is a well-studied woody encroacher, but little is known about the degree to which cedar windbreaks, which are advocated for in agroforestry programs, are contributing to woody encroachment, what factors are associated with cedar spread from windbreaks, nor where encroachment …

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Engineering Linear, Branched-Chain Triterpene Metabolism In Monocots, Chase Kempinski, Zuodong Jiang, Garrett Zinck, Shirley J. Sato, Zhengxiang Ge, Thomas E. Clemente, Joe Chappell

Department of Agronomy and Horticulture: Faculty Publications

Triterpenes are thirty-carbon compounds derived from the universal five-carbon prenyl precursors isopentenyl diphosphate (IPP) and dimethylallyl diphosphate (DMAPP). Normally, triterpenes are synthesized via the mevalonate (MVA) pathway operating in the cytoplasm of eukaryotes where DMAPP is condensed with two IPPs to yield farnesyl diphosphate (FPP), catalyzed by FPP synthase (FPS). Squalene synthase (SQS) condenses two molecules of FPP to generate the symmetrical product squalene, the first committed precursor to sterols and most other triterpenes. In the green algae Botryococcus braunii, two FPP molecules can also be condensed in an asymmetric manner yielding the more highly branched triterpene, botryococcene. Botryococcene …

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Full-Text Articles in Botany

Sapling, Erin C. Rowekamp, Eric B. Borth, Julia I. Chapman, Ryan W. Mcewan

Data Files

Lonicera Maackii Berry Leachate Toxicity: Survival And Mass, Kevin W. Custer, Eric B. Borth, Julia I. Chapman, Ryan W. Mcewan

Data Files

Honeysuckle, Erin C. Rowekamp, Eric B. Borth, Julia I. Chapman, Ryan W. Mcewan

Data Files

Probe Data, Charlotte A. Shade, Kevin W. Custer, Julia I. Chapman, Ryan W. Mcewan

Data Files

Terrestrial Fine Woody Debris, Erin C. Rowekamp, Julia I. Chapman, Ryan W. Mcewan

Data Files

Herbaceous Vegetation: August, Julia I. Chapman, Margaret E. Maloney, Erin C. Rowekamp, Mitchell J. Kukla, Sean D. Mahoney, Eric B. Borth, Ryan W. Mcewan

Data Files

Time To Colonization Trial Data, Margaret E. Maloney, Eric B. Borth, Julia I. Chapman, Ryan W. Mcewan

Data Files

Lonicera Maackii Flower Leachate Toxicity: Physicochemical Data, Kevin W. Custer, Julia I. Chapman, Ryan W. Mcewan

Data Files

Twig And Fruit Litter Basket, Erin C. Rowekamp, Taylor M. Buskey, Julia I. Chapman, Ryan W. Mcewan

Data Files

Lonicera Maackii Berry Leachate Toxicity: Length, Kevin W. Custer, Eric B. Borth, Julia I. Chapman, Ryan W. Mcewan

Data Files

Site Population Trial Data, Margaret E. Maloney, Eric B. Borth, Julia I. Chapman, Ryan W. Mcewan

Data Files

Chemical Analysis Data, Charlotte A. Shade, Kevin W. Custer, Julia I. Chapman, Ryan W. Mcewan

Data Files

Aquatic Fine Woody Debris, Erin C. Rowekamp, Julia I. Chapman, Ryan W. Mcewan

Data Files

Prototype Data, Margaret E. Maloney, Eric B. Borth, Julia I. Chapman, Ryan W. Mcewan

Data Files

Lonicera Maackii Leaf Feeding Tests: Initial Mass, Kevin W. Custer, Julia I. Chapman, Ryan W. Mcewan

Data Files

Lonicera Maackii Leaf Feeding Tests: Physicochemical Data, Kevin W. Custer, Julia I. Chapman, Ryan W. Mcewan

Data Files

Lonicera Maackii Flower Leachate Toxicity: Survival And Mass, Kevin W. Custer, Julia I. Chapman, Ryan W. Mcewan

Data Files

Leaf Litter Basket, Erin C. Rowekamp, Taylor M. Buskey, Julia I. Chapman, Ryan W. Mcewan

Data Files

Seedling, Erin C. Rowekamp, Eric B. Borth, Julia I. Chapman, Ryan W. Mcewan

Data Files

Aquatic Coarse Woody Debris, Erin C. Rowekamp, Julia I. Chapman, Ryan W. Mcewan

Data Files

Biofilm Ash Free Dry Mass And Chlorophyll A, Kevin W. Custer, Sean D. Mahoney, Mitchell J. Kukla, Corey Kuminecz, Joseph Murphy, Julia I. Chapman, Ryan W. Mcewan

Data Files

Letter From The Dean, Deacue Fields

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

Resolving The Position Of Astragalus Borysthenicus Klokov Within The Astragalus L. Species, Nataliia Karpenko, Viktoriia Martyniuk, Oksana Tyshchenko, Andrii Tarieiev, Ayten Tekpinar, Vitaliia Didenko, Igor Kostikov

Turkish Journal of Botany

Department of Agronomy and Horticulture: Faculty Publications

Growth, Fitness, And Overwinter Survival Of A Shattercane (Sorghum Bicolor Ssp. Drummondii) × Grain Sorghum (Sorghum Bicolor Ssp. Bicolor) F2 Population, Jared J. Schmidt, Melinda K. Yerka, Jeffrey F. Pedersen, John L. Lindquist

Department of Agronomy and Horticulture: Faculty Publications

Department of Agronomy and Horticulture: Faculty Publications

Isolation And Analysis Of Microbial Communities In Soil, Rhizosphere, And Roots In Perennial Grass Experiments, Morgan R. Mcpherson, Peng Wang, Robert B. Mitchell, Daniel P. Schachtman

Department of Agronomy and Horticulture: Faculty Publications

Hunger In The Land Of Plenty: Local Responses To Food Insecurity In Iowa, Gabrielle E. Roesch-Mcnally, Jacqueline Ann Nester, Andrea D. Basche, Eric Christianson, Emily Zimmerman

Department of Agronomy and Horticulture: Faculty Publications

Social–Ecological Landscape Patterns Predict Woody Encroachment From Native Tree Plantings In A Temperate Grassland, Victoria M. Donovan, Jessica L. Burnett, Christine H. Bielski, Hannah E. Birge, Rebecca Bevans, Dirac L. Twidwell Jr, Craig R. Allen

Department of Agronomy and Horticulture: Faculty Publications

Engineering Linear, Branched-Chain Triterpene Metabolism In Monocots, Chase Kempinski, Zuodong Jiang, Garrett Zinck, Shirley J. Sato, Zhengxiang Ge, Thomas E. Clemente, Joe Chappell

Department of Agronomy and Horticulture: Faculty Publications