Agronomy and Crop Sciences Commons^™

High-Throughput Snp Discovery And Assay Development In Common Bean, David L. Hyten, Qijian Song, Edward W. Fickus, Charles V. Quigley, Jong-Sung Lim, Ik-Young Choi, Eun-Young Hwang, Marcial Pastor-Corrales, Perry B. Cregan

Department of Agronomy and Horticulture: Faculty Publications

Background: Next generation sequencing has significantly increased the speed at which single nucleotide polymorphisms (SNPs) can be discovered and subsequently used as molecular markers for research. Unfortunately, for species such as common bean (Phaseolus vulgaris L.) which do not have a whole genome sequence available, the use of next generation sequencing for SNP discovery is much more difficult and costly. To this end we developed a method which couples sequences obtained from the Roche 454-FLX system (454) with the Illumina Genome Analyzer (GA) for high-throughput SNP discovery. Results: Using a multi-tier reduced representation library we discovered a total of …

Inoculation With Arbuscular Mycorrhizal Fungi Or Crop Rotation With Mycorrhizal Plants Improves The Growth Of Maize In Limed Acid Sulfate Soil, Hasao Higo, Katsunori Isobe, Dong-Jin Kang, Kazuhiro Ujie, Rhae A. Drijber, Ryuichi Ishii

Department of Agronomy and Horticulture: Faculty Publications

Arbuscular mycorrhizal fungi (AMF) improve the uptake of immobile mineral nutrients such as phosphate, thereby improving plant growth. In acid sulfate soil (ASS), AMF spore density is generally low which impacts root colonization and phosphate uptake. Thus, inoculation may help increase AMF colonization of crops grown in ASS. AMF spore density decreases after cultivation of a non-host crop or bare fallow. In addition, preceding crops affect the growth and yield of subsequent crops. The production of AMF inocula requires AMF-compatible plants. The objective of the present study is to elucidate the effect of preceding crops on the persistence of inoculated …

Fine Mapping Of The Soybean Aphid-Resistance Gene Rag2 In Soybean Pi 200538, Ki-Seung Kim, Curtis B. Hill, Glen L. Hartman, D. L. Hyten, Matthew E. Hudson, Brian W. Diers

Department of Agronomy and Horticulture: Faculty Publications

The discovery of biotype diversity of soybean aphid (SA: Aphis glycines Matsumura) in North America emphasizes the necessity to identify new aphid-resistance genes. The soybean [Glycine max (L.) Merr.] plant introduction (PI) 200538 is a promising source of SA resistance because it shows a high level of resistance to a SA biotype that can overcome the SA-resistance gene Rag1 from ‘Dowling’. The SA-resistance gene Rag2 was previously mapped from PI 200538 to a 10-cM marker interval on soybean chromosome 13 [formerly linkage group (LG) F]. The objective of this study was to fine map Rag2. This fine mapping …

Arkansas Soybean Performance Tests 2009, D. G. Dombeck, R. D. Bond, I. L. Eldridge, R. M. Pryor

Arkansas Agricultural Experiment Station Research Series

Soybean variety and strain performance tests are conducted each year in Arkansas by the University of Arkansas Division of Agriculture Arkansas Crop Variety Improvement Program. The tests provide information to companies developing varieties and/or marketing seed within the state, and aid the Arkansas Cooperative Extension Service in formulating variety recommendations for soybean producers.

Abundance Of Ssr Motifs And Development Of Candidate Polymorphic Ssr Markers (Barcsoyssr_1.0) In Soybean, Qijian Song, Gaofeng Jia, Youlin Zhu, David Grant, Rex T. Nelson, Eun-Young Hwang, D. L. Hyten, P. B. Cregan

Department of Agronomy and Horticulture: Faculty Publications

Simple sequence repeat (SSR) genetic markers, also referred to as microsatellites, function in map-based cloning and for marker-assisted selection in plant breeding. The objectives of this study were to determine the abundance of SSRs in the soybean genome and to develop and test soybean SSR markers to create a database of locus-specific markers with a high likelihood of polymorphism. A total of 210,990 SSRs with di-, tri-, and tetranucleotide repeats of five or more were identified in the soybean whole genome sequence (WGS) which included 61,458 SSRs consisting of repeat units of di- (≥10), tri- (≥8), and tetranucleotide (≥7). Among …

Arkansas Corn And Grain Sorghum Performance Tests 2009, D. G. Dombeck, R. D. Bond, I. L. Eldridge, R. M. Pryor

Arkansas Agricultural Experiment Station Research Series

Corn and grain sorghum performance tests are conducted each year in Arkansas by the University of Arkansas Division of Agriculture. The tests provide information to companies marketing seed within the state and aid the Arkansas Cooperative Extension Service in formulating recommendations for producers.

Can R&D Investment Offset The Negative Impact Of Climate Change On Agricultural Productivity?, Nazrul Islam, Ruhul A. Salim

Climate Science Published Reports

Productivity growth in agriculture helps maintain the nation's economic prosperity. However, long-run productivity growth in agriculture faces several challenges such as the potential worsening of climate due to global warming and the loss of productive land due to land use competition, salinity, wind erosion and soil acidity. Strategic policy making and appropriate funding for sustained productivity growth in agriculture is therefore crucial.

Research and development (R&D) to drive innovation is an acknowledged main source of productivity growth. The development and application of technologies generated through R&D boosts agriculture's productivity. Agricultural R&D activities in Australia and in most other developed economies …

Wheat (Triticum Aestivum) Nam Proteins Regulate The Translocation Of Iron, Zinc, And Nitrogen Compounds From Vegetative Tissues To Grain, Brian M. Waters, Cristobal Uauy, Jorge Dubcovsky, Michael A. Grusak

Department of Agronomy and Horticulture: Faculty Publications

The NAM-B1 gene is a NAC transcription factor that affects grain nutrient concentrations in wheat (Triticum aestivum). An RNAi line with reduced expression of NAM genes has lower grain protein, iron (Fe), and zinc (Zn) concentrations. To determine whether decreased remobilization, lower plant uptake, or decreased partitioning to grain are responsible for this phenotype, mineral dynamics were quantified in wheat tissues throughout grain development. Control and RNAi wheat were grown in potting mix and hydroponics. Mineral (Ca, Cu, Fe, K, Mg, Mn, P, S, and Zn) and nitrogen (N) contents of organs were determined at regular intervals to …

Summaries Of Arkansas Cotton Research 2008, Derrick M. Oosterhuis

Arkansas Agricultural Experiment Station Research Series

No abstract provided.

Experiencia De Productoras Con El Uso De Harina De Sorgo: Por Años El Cultivo Del Sorgo Ha Sido Utilizado Para El Consumo Humano Y Animal, Roxana Ortiz, Eduardo Funes

INTSORMIL Impacts and Bulletins

En marzo del año pasado, la industria panifi cadora experimento los precios altos que sufrió la harina de trigo y en la búsqueda de nuevas alternativas algunos de ellos se interesaron en el uso de harina de sorgo para elaborar pan dulce y bebidas étnicas.

Es así que el Centro Nacional de Tecnología Agropecuaria y Forestal (CENTA) a través del Laboratorio de Alimentos impulsa esta tecnología. El interés de probar nuevas opciones llevo a muchas Panaderías, Asociaciones de Productoras, ONG, Industrias de Alimentos, Fundaciones y otras a capacitarse en el uso de esta harina.

Arkansas Small-Grain Cultivar Performance Tests 2008-2009, J. T. Kelly, T. S. Rainey, R. K. Bacon, E. A. Milus

Arkansas Agricultural Experiment Station Research Series

Small-grain cultivar performance tests are conducted each year in Arkansas by the Arkansas Agricultural Experiment Station, Department of Crop, Soil, and Environmental Sciences. The tests provide information to companies developing cultivars and/or marketing seed within the state and aid the Arkansas Cooperative Extension Service in formulating cultivar recommendations for smallgrain producers.

B. R. Wells Rice Research Studies 2008, R. J. Norman, J. F. Meullenet, K. A. K. Moldenhauer

Arkansas Agricultural Experiment Station Research Series

No abstract provided.

Usan Sorgo Para Hacer Pan: El Centa Capacita A Panifi Cadores Para Usar Esa Materia Prima, Roxana Ortiz

INTSORMIL Impacts and Bulletins

En marzo del año pasado, la industria panifi cadora experimento los precios altos que sufrió la harina de trigo. En la búsqueda de nuevas alternativas, algunos productores se interesaron en el uso de harina de sorgo para elaborar pan dulce y bebidas étnicas.

Por esa razón, el Centro Nacional de Tecnología Agropecuaria y Forestal (CENTA), a través del laboratorio de alimentos, impulsa esta tecnología.

Promueven Ventajas Nutritivas Del Sorgo: La Harina De Este Cereal Es Utilizada Para Elaborar Diversos Productivos Alimenticios, Roxana Ortiz

INTSORMIL Impacts and Bulletins

Horchata, tiste, atoles saborizados, poleadas, pudín, harina de afrecho, pan francés y dulce son productos elaborados a base de sorgo o maicillo y son mezclados con otros ingredientes, técnica impulsada por especialistas del laboratorio de alimentos del Centro Nacional de Tecnología Agropecuaria y Forestal (CENTA).

El proceso consiste en usar la harina sola de sorgo (100%) y mezclarla con otros cereales, rostizando el grano para la elaboración de bebidas o molido en seco para el desarrollo de otros productos.

Best Management Practices For Corn Production In South Dakota: Websites With Related Information, David E. Clay, Kurtis D. Reitsma

SDSU Extension Circulars

No abstract provided.

Best Management Practices For Corn Production In South Dakota: Recordkeeping, James A. Wilson, Kurtis D. Reitsma, David E. Clay

SDSU Extension Circulars

Recordkeeping is an important component of all crop production systems. The time that is spent maintaining careful records can help to improve the production, profit, and overall efficiency of the production enterprise. Records provide information needed to identify successes and failures.

Best Management Practices For Corn Production In South Dakota: Corn Grain Harvest, Daniel S. Humberg, Richard E. Nicolai, Kurtis D. Reitsma

SDSU Extension Circulars

Corn (grain) harvest can begin when grain moisture drops below 30%. However, most producers will allow corn to dry in the field until grain moisture is between 18 to 25%. Harvesting corn when grain moisture levels are high can result in excessive drying costs, kernel damage, and harvest loss from improper threshing. Allowing corn to stay in the field too long can result in excess harvest loss from stalk lodging, ear drop, or kernel shattering. An optimal harvest depends not only on the condition of the crop but also on the proper maintenance and adjustment of harvest and grain handling …

Best Management Practices For Corn Production In South Dakota: Corn Insect Pests, Michael A. Catangui, Billy W. Fuller, B. Wade French

SDSU Extension Circulars

Historically, the major corn insect pests have been corn rootworms (northern and western), European corn borer, and black cutworm. Bt-corn hybrids are effective against most of these pests. However, Bt-corn hybrids are not effective against corn leaf aphid, corn root aphid, sap beetles, corn rootworm adults, grasshoppers, white grubs, wireworms, seed corn beetle, and seed corn maggots. These insect pests can reduce corn yields. This chapter discusses the management and biology of important corn insect pests commonly observed in South Dakota.

Best Management Practices For Corn Production In South Dakota: Soil Fertility, David E. Clay, Kurtis D. Reitsma

SDSU Extension Circulars

Corn requires sufficient amounts of at least 14 nutrients for optimal production (fig. 7.1). Soil fertility strategies should consider soil residual plant nutrients, cost of fertilizer relative to the value of corn, and management techniques that increase efficiency.

Best Management Practices For Corn Production In South Dakota : Corn Calendar And Troubleshooting Guide, Troy Bauder, Dwayne L. Beck, Sue L. Blodgett, C. Gregg Carlson, Michael A. Catangui, David E. Clay, Sharon A. Clay, Darrell L. Deneke, Martin A. Draper, B. Wade French, Billy W. Fuller, Robert G. Hall, Curt A. Hoffbeck, Daniel S. Humburg, Marie A. Langham, Douglas D. Malo, Mike J. Moechnig, Richard E. Nicolai, Kurtis D. Reitsma, Bradley E. Ruden, Thomas E. Schumacher, Dennis P. Todey, Todd P. Trooien, Hal D. Werner, James A. Wilson, Howard J. Woodard, Leon J. Wrage

SDSU Extension Circulars

No abstract provided.

Best Management Practices For Corn Production In South Dakota : Corn Drying And Storage, Troy Bauder, Dwayne L. Beck, Sue L. Blodgett, C. Gregg Gregg

SDSU Extension Circulars

The goal for a corn drying and storage system is to maintain grain quality without impeding harvesting or shipping. This chapter describes the factors that influence grain quality, proper handling techniques, drying procedures, storage management, and safety precautions.

Best Management Practices For Corn Production In South Dakota: Weeds And Herbicide Injury In Corn, Sharon Clay, Mike J. Moechnig

SDSU Extension Circulars

This chapter addresses weed problems and herbicide injuries that commonly occur in South Dakota corn production. Photographs and information are provided to assist producers in managing weed pressure and to help identify herbicide injury symptoms resulting from improper application, unintentional exposure, or adverse environmental conditions.

Best Management Practices For Corn Production In South Dakota: Useful Calculations: Corn Yields And Storage Requirements, Kurtis D. Reitsma, David Clay, Sharon Clay, C. Gregg Calson

SDSU Extension Circulars

No abstract provided.

Best Management Practices For Corn Production In South Dakota, Troy Bauder, Dwayne L. Beck, Sue L. Blodgett, C. Gregg Carlson, Michael A. Catangui, David E. Clay, Sharon A. Clay, Darrell L. Deneke, Martin A. Draper, B. Wade French, Billy W. Fuller, Robert G. Hall, Curt A. Hoffbeck, Daniel S. Humburg, Marie A. Langham, Douglas D. Malo, Mike J. Moechnig, Richard E. Nicolai, Kurtis D. Reitsma, Bradley E. Ruden, Thomas E. Schumacher, Dennis P. Todey, Todd P. Trooien, Hal D. Werner, James A. Wilson, Howard J. Woodard, Leon J. Wrage

SDSU Extension Circulars

Table of Contents:

Introduction [Page] 1

1. Corn Growth and Development [Page] 3

2. Corn Hybrid Selection [Page] 9

3. Corn Planting Guide [Page] 13

4. Seasonal Hazards—Frost, Hail, Drought, and Flooding [Page] 17

5. Tillage, Crop Rotations, and Cover Crops [Page] 21

6. Irrigation and Salt Management [Page] 31

7. Soil Fertility [Page] 39

8. Corn Insect Pests [Page] 49

9. Corn Diseases in South Dakota [Page] 59

10. Weeds and Herbicide Injury in Corn [Page] 71

11. Corn Grain Harvest [Page] 93

12. Corn Drying and Storage [Page] 99

13. Recordkeeping [Page] 107

14. Useful Calculations: Corn Yields …

Best Management Practices For Corn Production In South Dakota : Corn Diseases In South Dakota, Troy Bauder, Dwayne L. Beck, Sue L. Blodgett, C. Gregg Carlson, Michael A. Catangui, David E. Clay, Sharon A. Clay, Darrell L. Deneke, Martin A. Draper, B. Wade French, Billy W. Fuller, Robert G. Hall, Curt A. Hoffbeck, Daniel S. Humburg, Marie A. Langham, Douglas D. Malo, Mike J. Moechnig, Richard E. Nicolai, Kurtis D. Reitsma, Bradley E. Ruden, Thomas E. Schumacher, Dennis P. Todey, Todd P. Trooien, Hal D. Werner, James A. Wilson, Howard J. Woodard, Leon J. Wrage

SDSU Extension Circulars

Corn diseases can be separated into 1) seed and seedling diseases, 2) root-infecting nematodes, 3) leaf diseases, 4) rusts, 5) stalk rots, and 6) ear and grain molds. Yield losses can result from diseases directly reducing yields or from harvestability, spoilage, or marketing and/or use issues associated with mycotoxin contamination. See Table 9.1 for corn disease management information. Attention to optimal seed quality, hybrid selection, seed treatments, weed and insect control, crop rotation, soil fertility, irrigation, and prompt harvest can reduce disease impacts. This chapter discusses aspects of recognizing and managing South Dakota corn diseases.

Arkansas Turfgrass Report 2008, Michael Richardson, Douglas Karcher, Aaron Patton

Arkansas Agricultural Experiment Station Research Series

No abstract provided.

Sorghum Grain Mold: Sustainable Pest Management Strategies, Intsormil

INTSORMIL Impacts and Bulletins

Global losses due to grain mold are estimated to be $130 million annually. Sorghum grain mold is caused by a complex of fungal species, the most important being Fusarium thapsinum and Curvularia lunata. An additional 25 fungal genera are secondary invaders. Grain mold reduces the quantity of food available, as the fungus consumes a portion of the grain, and reduces the quality and economic value of what remains by producing pigments and toxins that make the grain less palatable and nutritious. Fusarium spp. and the secondarily invading Aspergillus spp. may produce toxins such as aflatoxins (a highly carcinogenic and …

Sorghum--Fuel Of The Future? Agronomist Studies Sorghum And Grass For Future Energy Source, Nancy Peterson, John Propheter, Scott Staggenborg

INTSORMIL Impacts and Bulletins

Weighing in on crop production in West Africa might seem a bit of a stretch for a K-State agronomist; however, that’s not the case for Scott Staggenborg. He recently returned from his second visit to West Africa, where he reviewed sorghum research and crop production.

During the research trip to Tombouctou (also spelled Timbuktu), a West African city near the Niger River, he joined Malian researchers in exploring opportunities to improve sorghum production and management. The research effort is supported by the International Sorghum and Millet Improvement Program (INTSORMIL).

Growing conditions in the West African region are remarkably similar to …

Promueven Sorgo O Maicillo Para Consumo Humano: El Grano De Sorgo Tiene Componentes Nutricionales Para Mejorar La Dieta Alimenticia, Así Lo Confirmó Una Técnica Del Laboratorio De Tecnología De Alimentos Del Centa, Roxana Ortiz, Eduardo Funes

INTSORMIL Impacts and Bulletins

Horchata, tiste, atoles saborizados, poleadas, pudin, harina de afrecho, pan francés y dulce son productos elaborados a base de sorgo o maicillo y son mezclados con otros ingredientes, técnica impulsada por especialistas del Laboratorio de Alimentos del Centro Nacional de Tecnología Agropecuaria y Forestal (CENTA).

La Técnica consiste en usar la harina sola de sorgo (100%) y mezclada con otros cereales, rostizando el grano para la elaboración de bebidas o molido en seco para el desarrollo de otros productos.

Intsormil Program Doubles Sorghum And Millet Yields In Mali, West Africa, Kimberly Christiansen

INTSORMIL Impacts and Bulletins

After the close of the meeting where the farmers learned about the potential of being a collaborator in the Production-Marketing Project in 2009, INTSORMIL PI John Sanders shows women sorghum farmers from Diankounte Camara village in western Mali photos of the lush sorghum plots taken in 2008 project sites in eastern Mali. After learning about the potential of the project all farmers expressed their enthusiasm to be collaborators in 2009. Their major concern was that only 75 farmers in the Diankounte Camara village could be involved due to funding limitations. As collaborators, the Diankounte Camara women expect to be able …