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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.


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 ...


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.


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.


How’S Your Scn Resistance Holding Up?, Gregory L. Tylka 2015 Iowa State University

How’S Your Scn Resistance Holding Up?, Gregory L. Tylka

Integrated Crop Management News

If you have fields infested with the soybean cyst nematode (SCN), it is very likely that you are growing SCN-resistant soybean varieties to manage the pest. Resistant soybeans have been a great management tool to combat SCN, but the resistant varieties suffer from a serious lack of genetic diversity.


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

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

Integrated Crop Management News

A team of Iowa State University Department of Agronomy faculty and staff specialists in crops, soils and climate have begun an innovative pilot project to provide an in-season crop and soil water-nitrogen status and an end-of-season yield forecast. The approach combines use of the Agricultural Production Systems sIMulator (APSIM) cropping systems model, the Weather Research and Forecast Model (WRF), and parallel in-field data collection to verify model predictions.


Diseases Showing Up In Iowa Corn, Alison E. Robertson 2015 Iowa State University

Diseases Showing Up In Iowa Corn, Alison E. Robertson

Integrated Crop Management News

Northern corn leaf blight (NCLB) (Figure 1) has been reported from several fields in southern Iowa. You will remember that this disease was widespread in Iowa in 2014, and severe on susceptible hybrids. Since the fungus survives the winter in corn residue, we likely have above normal inoculum present. Cool weather with frequent precipitation favors infection of corn by the fungus and disease development. New lesions may develop every 4 days (Muiro et al., 2010) when conditions are favorable (susceptible hybrid, cool and wet weather). Warm dry conditions will slow or halt disease development until favorable conditions return.


Japanese Beetles Begin Emergence, Erin W. Hodgson 2015 Iowa State University

Japanese Beetles Begin Emergence, Erin W. Hodgson

Integrated Crop Management News

Japanese beetle is an invasive insect capable of feeding on corn and soybean. This pest has been in Iowa since 1994 but its distribution in field crops is considered sporadic around the state. Statewide populations were low in 2014 and it is unclear if pressure will be significant this year. Literature shows Japanese adults need about 1,030 growing degree days (base 50°F) to complete development and will continue emergence until around 2,150 degree days. Based on accumulating degree day temperatures in 2015, Japanese beetle adults should be active in some areas of southern Iowa this week (Figure ...


Identification Of Putative Plant Defense Genes Using A Novel Hydroponic Co-Cultivation Technique For Studying Plant-Pathogen Interaction, Naeem Nathoo 2015 The University of Western Ontario

Identification Of Putative Plant Defense Genes Using A Novel Hydroponic Co-Cultivation Technique For Studying Plant-Pathogen Interaction, Naeem Nathoo

University of Western Ontario - Electronic Thesis and Dissertation Repository

Previous work on identifying the molecular mechanisms mediating plant-pathogen interactions and reciprocal host responses have little emphasis on developing models that closely resemble host-microbe interaction in planta. This work establishes an amalgamated model of interaction wherein successful pathogens elicit and overcome host defenses activated by microbial signatures and virulence factors. Using a hydroponic co-cultivation model, we assessed the responses of Arabidopsis thaliana Col-0 to Agrobacterium tumefaciens C58 to ameliorate limitations of previous approaches. Comparisons of differential gene expression between directly and indirectly affected host sites by microarray analysis revealed both reactive and pro-active defense responses, respectively. Selected homozygous single-gene knockouts ...


Southeast Research And Demonstration Farm Field Day Is June 23, 2015, Rebecca K. Ahlers, Meaghan J. B. Anderson, Virgil L. Schmitt 2015 Iowa State University

Southeast Research And Demonstration Farm Field Day Is June 23, 2015, Rebecca K. Ahlers, Meaghan J. B. Anderson, Virgil L. Schmitt

Integrated Crop Management News

Certified crop advisers (CCAs) can earn 4.5 hours of credit in soil and water management by attending a special CCA morning session, followed by the afternoon spring field day tour at the Southeast Iowa Research and Demonstration Farm near Crawfordsville on June 23, 2015.


Equisetum: From The Ditch To The Field, Robert G. Hartzler 2015 Iowa State University

Equisetum: From The Ditch To The Field, Robert G. Hartzler

Integrated Crop Management News

Scouring rush and field horsetail are two species in the Equisetum genus. These are primitive plants that produce spores rather than seeds, but they spread primarily by underground rhizomes. Until recently these two weeds were found primarily in roadside ditches, but the reduction in tillage has allowed them to spread into crop fields.


Nitrogen Issues So Far This Spring, John E. Sawyer 2015 Iowa State University

Nitrogen Issues So Far This Spring, John E. Sawyer

Integrated Crop Management News

Across the state, generally there has not been excessive precipitation and much of Iowa has been below normal the past 60 days. A few areas have received more than normal precipitation, mostly in western to southwestern Iowa, some isolated areas in central to north central Iowa, and very eastern Iowa (see map).


Corn Rootworm Egg Hatch Is In Progress, Erin W. Hodgson 2015 Iowa State University

Corn Rootworm Egg Hatch Is In Progress, Erin W. Hodgson

Integrated Crop Management News

Corn rootworm egg hatch in Iowa typically occurs from late May to the middle of June, with an average peak hatching date of June 6. In 2015, the average hatching date will be slightly behind normal and approximately the same time as in 2014. Development is driven by soil temperature and measured by growing degree days. Research suggests about 50 percent of egg hatch occurs between 684-767 accumulated degree days (base 52°F, soil). A few areas of Iowa have reached peak corn rootworm egg hatch (Fig. 1), particularly around Muscatine. Many other regions will be reaching 50 percent egg ...


Summer Field Day Scheduled For Isu Northern Iowa Research Farm, Angela M. Rieck-Hinz, Paul C. Kassel, Micah B. Smidt 2015 Iowa State University

Summer Field Day Scheduled For Isu Northern Iowa Research Farm, Angela M. Rieck-Hinz, Paul C. Kassel, Micah B. Smidt

Integrated Crop Management News

Crop management, nitrogen management, and crops grown for an energy source will be highlighted topics of the summer field day at the Iowa State University Northern Research and Demonstration Farm. The field day will take place June 25, at the farm’s northern location at 310 S. Main St., Kanawha, immediately south of town on county road R-35.


Transient And Stable Transformation Of Ceratopteris Richardii Gametophytes., Linh T. Bui, Angela Ruth Cordle, Erin E. Irish, Chi-Lien Cheng 2015 Donald Danforth Plant Science Center

Transient And Stable Transformation Of Ceratopteris Richardii Gametophytes., Linh T. Bui, Angela Ruth Cordle, Erin E. Irish, Chi-Lien Cheng

Department of Biology Publications

BACKGROUND: Ferns, being vascular yet seedless, present unparalleled opportunities to investigate important questions regarding the evolution and development of land plants. Ceratopteris richardii, a diploid, homosporous fern has been advanced as a model fern system; however, the tenuous ability to transform the genome of this fern greatly limited its usefulness as a model organism. Here we report a simple and reliable Agrobacterium-mediated method for generating transient and stable transformants of mature C. richardii gametophytes.

RESULTS: Transformation success was achieved by enzyme treatment that partially digested the cell walls of mature gametophytes to facilitate Agrobacteria infection. Co-incubation of Agrobacteria with enzymatically ...


Corn Fungicides: To Spray Or Not To Spray?, Alison E. Robertson, John M. Shriver 2015 Iowa State University

Corn Fungicides: To Spray Or Not To Spray?, Alison E. Robertson, John M. Shriver

Integrated Crop Management News

Across the state of Iowa, much of the crop is reaching V5 to V6 and thoughts of an early fungicide application have probably crossed some people’s minds. Every year, we evaluate and compare registered fungicides applied at either V5 to V6, R1 alone, or At V5 to V6 plus R1 for foliar disease management and effects on yield. In 2014, we tested 8 products at 6 locations in Iowa (Table 1). A randomized complete block design with 4 replications was used. At each location, two non-sprayed checks were included.


Online Review Course For Iowa Certified Crop Adviser Exam Now Available, Robert G. Hartzler 2015 Iowa State University

Online Review Course For Iowa Certified Crop Adviser Exam Now Available, Robert G. Hartzler

Integrated Crop Management News

Iowa State University Extension and Outreach, with support from the Iowa Certified Crop Advisers Board, has developed an online review course for individuals taking the Iowa Certified Crop Advisor (CCA) examination.

The course consists of four modules included in the exam:

  1. crop management
  2. pest management
  3. nutrient management
  4. soil and water management.


Get To The Root Of The Problem: An Easy Way To Check For Scn, Gregory L. Tylka 2015 Iowa State University

Get To The Root Of The Problem: An Easy Way To Check For Scn, Gregory L. Tylka

Integrated Crop Management News

The soybean cyst nematode (SCN) was first discovered in Iowa more than 35 years ago, in Winnebago County in 1978 to be specific. The nematode is widely considered to be the most damaging pathogen of soybeans in Iowa. Results of random surveys of the state funded by the soybean checkoff and conducted in the mid 1990s and again in the mid 2000s indicate that SCN is likely present in 75 percent or more of Iowa fields. SCN has the potential to increase in numbers very quickly, it can cause 50 percent or greater yield loss, and it can survive dormant ...


Backpack Spray Calibration Fact Sheet, Hilary A. Sandler 2015 University of Massachusetts - Amherst

Backpack Spray Calibration Fact Sheet, Hilary A. Sandler

Cranberry Station Fact Sheets

No abstract provided.


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