Open Access. Powered by Scholars. Published by Universities.®

Plant Sciences Commons

Open Access. Powered by Scholars. Published by Universities.®

11,508 Full-Text Articles 14,550 Authors 1,191,258 Downloads 146 Institutions

All Articles in Plant Sciences

Faceted Search

11,508 full-text articles. Page 1 of 177.

Iowa State Research Farm Reports Available To Public, Mark S. Honeyman 2015 Iowa State University

Iowa State Research Farm Reports Available To Public, Mark S. Honeyman

Integrated Crop Management News

There are fourteen Iowa State University Research and Demonstration Farms in Iowa; nine owned by associations (local farmers) and five owned by the university. One responsibility of Iowa State to the associations is to provide an annual farm progress report on the agricultural research and related scientific agriculture activities conducted at the farm as a year-end summary. Those reports, that were made available in the past to the members and others in print form, are now available online to the public athttp://fpr.extension.iastate.edu/ in a new format.


Certified Crop Adviser Exam Review Course Offered By Isu Extension, Brent A. Pringnitz 2015 Iowa State University

Certified Crop Adviser Exam Review Course Offered By Isu Extension, Brent A. Pringnitz

Integrated Crop Management News

Individuals planning to become a Certified Crop Adviser (CCA) can attend a two-day ISU Extension course to assist with exam preparation. ISU extension specialists will cover the performance objectives for the exam and provide additional assistance on topic areas of most concern to students. Students will take interactive quizzes during the course and finish with a practice examination.


Confinement Site Manure Applicator Workshops Scheduled For 2011, Angela M. Rieck-Hinz 2015 Iowa State University

Confinement Site Manure Applicator Workshops Scheduled For 2011, Angela M. Rieck-Hinz

Integrated Crop Management News

Confinement site manure applicators and anyone interested in learning about manure issues should plan to attend a two-hour workshop offered by Iowa State University (ISU) Extension in January or February 2011. These workshops are offered in cooperation with the Iowa Department of Natural Resources (DNR). There is no fee to attend the workshops, but applicators will need to pay certification fees to complete certification requirements.


Commercial Manure Applicator Training Scheduled For Jan. 6, 2011, Angela M. Rieck-Hinz 2015 Iowa State University

Commercial Manure Applicator Training Scheduled For Jan. 6, 2011, Angela M. Rieck-Hinz

Integrated Crop Management News

Commercial manure applicators can attend three hours of training on Thursday, Jan. 6, 2011, to meet annual commercial manure applicator certification requirements. Iowa State University (ISU) Extension and the Iowa Department of Natural Resources (DNR) will conduct Commercial Manure Applicator training from 9 a.m. to noon at 75 locations in Iowa, and four locations in surrounding states. Registration begins at 8:30 a.m. There is no fee for the workshop but applicators must register by Dec. 30 with the ISU Extension county office where they plan to attend. A complete list of county extension offices offering this workshop ...


Community Involvement To Address A Long-Standing Invasive Species Problem: Aspects Of Civic Ecology In Practice, Rebecca W. Dolan, Kelly Harris, Mark Adler 2015 Butler University

Community Involvement To Address A Long-Standing Invasive Species Problem: Aspects Of Civic Ecology In Practice, Rebecca W. Dolan, Kelly Harris, Mark Adler

Scholarship and Professional Work - LAS

Invasive non-native species (INS) are found in every city around the globe, but their impacts in urban settings as biological agents of visual pollution that block views of natural landscapes and disconnect citizens from nature are not as often addressed as comprehensively as their impacts in natural areas or agricultural settings. The multiple impacts of INS in cities make them ideal candidates for aspects of Civic Ecology Practice, where local environmental stewardship action is taken to enhance green infrastructure and community well-being in urban and other human-dominated systems. We present details of a community driven program focused on removal of ...


Development Of Transgenic Lines To Support Plant Cell Biology Research, Kristin Kopperud 2015 University of Kentucky

Development Of Transgenic Lines To Support Plant Cell Biology Research, Kristin Kopperud

Kaleidoscope

Viruses pose a threat to humans in a variety of ways — from direct infection to imposing devastating effects on the agriculture industry. Prevention of such infection requires knowledge of the mechanisms of viral infection, both in animal- and plant-infecting species. The goal of this project was to identify plant factors that interact with viral proteins in the course of infection leading to disease. Sonchus yellow net virus (SYNV) and Potato yellow dwarf virus (PYDV) were used to test the hypothesis that the viruses utilize different subsets of host factors in order to infect Nicotiana benthamiana, despite both being members of ...


Cover Crop Biomass Production And Water Use In The Central Great Plains, David C. Nielsen, Drew J. Lyon, Gary W. Hergert, Robert K. Higgins, Johnathon D. Holman 2015 USDA-ARS

Cover Crop Biomass Production And Water Use In The Central Great Plains, David C. Nielsen, Drew J. Lyon, Gary W. Hergert, Robert K. Higgins, Johnathon D. Holman

David C. Nielsen

The water-limited environment of the semiarid Central Great Plains may not produce enough cover crop biomass to generate benefits associated with cover crop use in more humid regions. There have been reports that cover crops grown in mixtures produce more biomass with greater water use efficiency than single-species plantings. This study was conducted to determine differences in cover crop biomass production, water use efficiency, and residue cover between a mixture and single-species plantings. The study was conducted at Akron, CO, and Sidney, NE, during the 2012 and 2013 growing seasons under both rainfed and irrigated conditions. Water use, biomass, and ...


Genetic Analysis Of A Non-Germinating Mutant Of Arabidopsis Thaliana, Md Jakir Hossan 2015 The University of Western Ontario

Genetic Analysis Of A Non-Germinating Mutant Of Arabidopsis Thaliana, Md Jakir Hossan

Electronic Thesis and Dissertation Repository

Seed germination is partially controlled by plant hormone gibberellins (GAs). Chemical mutagenesis yielded an Arabidopsis thaliana mutant gm11, which has an absolute gibberellin requirement for seed germination. This mutant exhibited phenotypes of GA-rescuable dwarfs, including dark-green leaves, and reduced fertility. However, with repeated GA treatment, gm11 develops into fertile plants with a nearly wild type phenotype. Bulked-segregant analysis mapped gm11 to the bottom arm of chromosome 1, and subsequent next-generation mapping revealed that the mutation is a G → A transition in At1g79460 (GA2), creating a premature stop codon. This gene encodes an ent-kaurene synthase (KS) which catalyzes the conversion of ...


Late-Season 2,4-D Treatments In Corn, Robert G. Hartzler 2015 Iowa State University

Late-Season 2,4-D Treatments In Corn, Robert G. Hartzler

Integrated Crop Management News

Weeds that escape control not only impact crop yields but also produce seeds that contribute to future problems. While it is too late to protect crop yields from weed-related losses, in some situations the quantity of weed seed that is produced can be reduced. Historically, 2,4-D applications in corn have been been the most popular late-season treatments. The effectiveness of these applications is dependent upon the sensitivity of the weed to the herbicide and the maturity of the weed seed at the time of application.


A Field Guide For Grasses And Grass-Like Plants Of Idaho, Justin J. Trujillo, Eva K. Strand (Mentor) 2015 University of Idaho

A Field Guide For Grasses And Grass-Like Plants Of Idaho, Justin J. Trujillo, Eva K. Strand (Mentor)

Idaho Conference on Undergraduate Research

The purpose of this project is to develop a user-friendly field guide to grasses and grass-like plants in Idaho, specifically geared to those with limited background in botany. The guide will feature 60 Idaho grasses and grass-like plants, intended for K-16 educators and students, ranchers, land owners, recreationists, and nature enthusiasts, with accompanying K-12 lesson plans. In the form of both a printed book and an offline app for iPhones and Androids, the guide will include colorful images showing detailed characteristics and vegetative features of each grass, an easy-to-use dichotomous key, and information on each plant’s history, forage value ...


In-Season Forecast Of Soil Water-Nitrogen And Corn-Soybean Yields For Central And Northwest Iowa; August 12 Forecast, Mark A. Licht, Sotirios Archontoulis, Ranae N. Dietzel 2015 Iowa State University

In-Season Forecast Of Soil Water-Nitrogen And Corn-Soybean Yields For Central And Northwest Iowa; August 12 Forecast, Mark A. Licht, Sotirios Archontoulis, Ranae N. Dietzel

Integrated Crop Management News

For many farmers and agronomists, at this point in the growing season more thoughts move to determining realistic yield expectations. Making those yield estimates might be tough, especially for soybean, since both the corn and soybean crops are roughly halfway through grain fill. The daily rates of water and nitrogen uptake by the corn crop are decreasing and crop growth is at a slower rate than previous forecasts. Soybeans are still accumulating nitrogen and water at high rates (Tables 1 and 2). At this point, weather, insects, and diseases can still influence yields.


New Uses For Soybean Products, Keith Heffernan 2015 Iowa State University

New Uses For Soybean Products, Keith Heffernan

Iowa Ag Review

U.S. agribusiness is constantly looking for new opportunities to expand markets for agricultural commodities and value-added products. With that in mind, a project called the Midwest Feeds Consortium, directed by the Center for Agricultural and Rural Development at Iowa State University, designed a study to link product development in agriculture with feed demand in aquaculture. What the consortium research found was that the demand for soybean oil meal and soybean products could be increased 2 percent annually. How? By providing up to 30 percent soybean product in the composition of aquaculture feeds used in the production of domestic fish ...


Tips And Considerations For Getting Started With Cover Crops, Mark A. Licht, Thomas C. Kaspar 2015 Iowa State University

Tips And Considerations For Getting Started With Cover Crops, Mark A. Licht, Thomas C. Kaspar

Integrated Crop Management News

Cover crops have been all the rage these past couple years because they are one of the practices that farmers can use to reduce losses of nitrogen and phosphorus from farm fields. Additionally, there are countless research trials that have documented the ability of cover crops to reduce erosion, build up or recycle nutrients, enhance soil health, assist with weed control, and/or provide forage or grazing. Cover crops, however, are not an “add on”. Using cover crops requires a complete rethinking of your cropping system practices. Changes in priorities, timing, logistics, and operations are required to allow for successful ...


Late-Season Crop Management Clinic, Brent A. Pringnitz, Warren L. Pierson 2015 Iowa State University

Late-Season Crop Management Clinic, Brent A. Pringnitz, Warren L. Pierson

Integrated Crop Management News

Iowa State University Extension and Outreach is offering a Late Season Crop Management Clinic on Wednesday, Aug. 26, and Thursday, Aug. 27, at the Field Extension Education Laboratory near Boone, Iowa. Designed for agribusiness professionals and crop producers, the two-day course provides hands-on, in-field experience and discussions of the 2015 growing season, along with the latest research on disease management and identification from ISU Extension and Outreach specialists.


Corn Rootworm Management Update, Erin W. Hodgson 2015 Iowa State University

Corn Rootworm Management Update, Erin W. Hodgson

Integrated Crop Management News

For a second year in a row, corn rootworm abundance is lower than expected in Iowa. This is due, in part, to exceptionally wet spring conditions in 2014. However, scouts and farmers have noticed rebounding populations of adult corn rootworm in the landscape now, especially noting root injury to first-year corn by northern corn rootworm. It is not too early to make management decisions for next year, with the following considerations.


Pay Attention To Condition Of Stored Corn, Charles R. Hurburgh 2015 Iowa State University

Pay Attention To Condition Of Stored Corn, Charles R. Hurburgh

Integrated Crop Management News

Quality of stored grain must be maintained through the entire summer period, until stocks can be rotated in the fall. Summer storage is challenging because warm temperatures and high relative humidities put even dry grain at risk for mold and insect activity. Relative humidities in the last two weeks have been very high. The chart below explains why summer aeration can create either continued mold growth or excessive moisture shrink (below 14% moisture corn; 12% moisture soybeans). The horizontal lines are the market standard moistures for corn and soybeans (15% and 13% respectively).


2012 National Turfgrass Evaluation Program Tall Fescue Test: 2014 Data, L. Parsons, M. Kennelly, J. Griffin, J. Hoyle 2015 Kansas State University

2012 National Turfgrass Evaluation Program Tall Fescue Test: 2014 Data, L. Parsons, M. Kennelly, J. Griffin, J. Hoyle

Kansas Agricultural Experiment Station Research Reports

A number of the cultivars included in the 2012 National Turfgrass Evaluation Program Tall Fescue Test performed well and showed good brown patch resistance in southern Kansas during the 2014 growing season.


2012 National Turfgrass Evaluation Program Tall Fescue Test: 2012 And 2013 Data, L. Parsons, M. Kennelly, J. Griffin, J. Hoyle 2015 Kansas State University

2012 National Turfgrass Evaluation Program Tall Fescue Test: 2012 And 2013 Data, L. Parsons, M. Kennelly, J. Griffin, J. Hoyle

Kansas Agricultural Experiment Station Research Reports

Tall fescue is the cool-season turfgrass best adapted for the transition zone because it tolerates drought and heat and has few serious insect or disease problems. It possesses a rather coarse leaf texture, lacks stolons, and has only very short rhizomes. Efforts to improve cultivar quality include selecting for finer leaf texture, rich green color, and better sward density while maintaining good stress tolerance and disease resistance. New introductions need regular evaluation to determine their long-range suitability for use in Kansas.


Cellular Localization And Metabolomic Analysis Of The Arabidopsis Thaliana Major Intrinsic Protein Nip2;1: A Root-Specific Lactic Acid Transporter Induced In Response To Hypoxic Stress, Taylor K. Fuller 2015 University of Tennessee - Knoxville

Cellular Localization And Metabolomic Analysis Of The Arabidopsis Thaliana Major Intrinsic Protein Nip2;1: A Root-Specific Lactic Acid Transporter Induced In Response To Hypoxic Stress, Taylor K. Fuller

University of Tennessee Honors Thesis Projects

No abstract provided.


Rust Diseases On Switchgrass (Panicum Virgatum), Ying Ma 2015 University of Nebraska – Lincoln

Rust Diseases On Switchgrass (Panicum Virgatum), Ying Ma

Theses, Dissertations, and Student Research in Agronomy and Horticulture

Switchgrass (Panicum virgatum) is a perennial C4 grass native to the central prairies of North America. Recent development of switchgrass as a sustainable biofuel feedstock has raised interest in diseases that could impact switchgrass, especially when grown under monoculture conditions. Among the known diseases of switchgrass, rust diseases are the most widespread and could potentially impact yield and biomass quality of new switchgrass cultivars. Two species of rust fungi, Uromyces graminicola and Puccinia emaculata, are known to infect switchgrass, with P. emaculata being the primary or sole rust pathogen on switchgrass in southern US states. The relative importance of ...


Digital Commons powered by bepress