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Identification Of Positive Yield Qtl Alleles From Exotic Soybean Germplasm In Two Backcross Populations, K.-S. Kim, B. W. Diers, D. L. Hyten, M. A. Rouf Mian, J. G. Shannon, R. L. Nelson 2012 University of Illinois

Identification Of Positive Yield Qtl Alleles From Exotic Soybean Germplasm In Two Backcross Populations, K.-S. Kim, B. W. Diers, D. L. Hyten, M. A. Rouf Mian, J. G. Shannon, R. L. Nelson

Agronomy & Horticulture -- Faculty Publications

Increasing seed yield is an important breeding goal of soybean [Glycine max (L.) Merr.] improvement efforts. Due to the small number of ancestors and subsequent breeding and selection, the genetic base of current soybean cultivars in North America is narrow. The objective of this study was to map quantitative trait loci (QTL) in two backcross populations developed using soybean plant introductions as donor parents. The first population included 116 BC2F3-derived lines developed using ‘‘Elgin’’ as the recurrent parent and PI 436684 as the donor parent (E population). The second population included 93 BC3F …


Natural Variation In Iron Use Efficiency And Mineral Remobilization In Cucumber (Cucumis Sativus), Brian M. Waters, Grace Troupe 2012 University of Nebraska-Lincoln

Natural Variation In Iron Use Efficiency And Mineral Remobilization In Cucumber (Cucumis Sativus), Brian M. Waters, Grace Troupe

Agronomy & Horticulture -- Faculty Publications

Aims: Iron (Fe) is an essential micronutrient, and plant-available Fe is often limited in alkaline soils. Fe deficiency chlorosis decreases plant growth and yield. Identification of germplasm with high and low Fe use efficiency will allow studies to better understand the genetic components for breeding Fe efficient varieties.

Methods: A screen using cucumber (Cucumis sativus) seedlings identified varieties that maintained contrasting levels of chlorophyll under Fe deficiency or limitation. A time course of mineral dynamics in cotyledons was conducted.

Results: The variety Ashley had the highest chlorophyll under Fe deficiency and per unit Fe in the leaf, while …


The Effects Of Climate On The Growth Of Winter Wheat And Spring Barley In An Irish Context, Adrian Kennedy 2012 Department of Biological Sciences, Cork Institute Technology, Cork, Ireland.

The Effects Of Climate On The Growth Of Winter Wheat And Spring Barley In An Irish Context, Adrian Kennedy

Theses

The climate of earth is always changing due to natural events, however it is thought that the rapid warming period currently taking place is primarily due human activity to (environmental protection agency 2012). Climate change is altering the environment and this will have consequences for agriculture (Teagasc publications 2012). In this study we examine the relationship between weather and the yield of winter wheat and spring barley in an Irish context using data gathered from 2004-2010 at the Teagasc Oak Park research centre in Carlow. The data was analysed using a mixed effect model to test which if any weather …


Extractive Metallurgy Of Copper, Fathi Habashi 2011 Laval University, Quebec City, Canada

Extractive Metallurgy Of Copper, Fathi Habashi

Fathi Habashi

A short account on the extractive metallurgy of copper in 410 pages, fully illustrated in colour. It covers its chemistry, history, pyro-, hydro-, and electrometallurgy. Kinetics of leaching of copper ores and a literature guide are also included.


Expertos Analizan Impacto Del Cambio Climático En Granos Básicos Y Sorgos Forrajeros En El Salvador, Kimberly Christiansen 2011 INTSORMIL

Expertos Analizan Impacto Del Cambio Climático En Granos Básicos Y Sorgos Forrajeros En El Salvador, Kimberly Christiansen

INTSORMIL Impacts and Bulletins

En el evento participan profesionales de El Salvador, así como de las universidades de Kansas State y Purdue, de Estados Unidos.

Exponer y analizar los principales efectos derivados del cambio climático en los cultivos de El Salvador, así como el impacto que ha tenido la adopción de variedades forrajeras de sorgo en el país, son los objetivos principales de los foros realizados este miércoles por el Centro Nacional de Tecnología Agropecuaria y Forestal “Enrique Álvarez Córdova” (CENTA) con apoyo del Instituto Internacional de Sorgo, Mijo y otros granos (INTSORMIL).


Returns To The Introduction Of New Sorghum Cultivars Into The Dairy Industry Of El Salvador, Alexis H. Villacís, John H. Sanders 2011 Purdue University

Returns To The Introduction Of New Sorghum Cultivars Into The Dairy Industry Of El Salvador, Alexis H. Villacís, John H. Sanders

INTSORMIL Presentations

The driver of agricultural development is the introduction of new technology. Sensitive sorghums have long been a critical component of hillside Central American agriculture providing a reserve or insurance policy when the principal staple of maize falters. The insensitive sorghums have been more recently introduced since the ‘70s for planting in the valleys in the second season. In the last thirty years the introduction of new insensitive cultivars has accelerated initially for poultry and in the previous two decades for dairy production. This growth has been facilitated by strategic investments in research by CENTA and the Ministry of Agriculture.

As …


Rentabilidad De La Introduccion De Nuevos Cultivares De Sorgo En La Industria Lactea De El Salvador: Estudio De Impacto Economico, Alexis H. Villacís, John H. Sanders 2011 Purdue University

Rentabilidad De La Introduccion De Nuevos Cultivares De Sorgo En La Industria Lactea De El Salvador: Estudio De Impacto Economico, Alexis H. Villacís, John H. Sanders

INTSORMIL Presentations

La introducción de nuevas tecnologías:

Propulsor del desarrollo agrícola.

Sorgos sensitivos:

Reserva o póliza de seguro

Introducidos recientemente desde los años 70 para la siembra en los valles en la segunda temporada.

Últimos 30 años introducción acelerada: Alimentación de aves y en el sector del ganado lechero.

Inversiones de CENTA y MAG.

Aumento de ingresos:

Mayor demanda de alimentos de alta calidad (carne, leche, queso, frutas y verduras).

Investigación agrícola dirigida por René Clara del CENTA: Desarrollo de nuevos cultivares.

Investigación agrícola y extensionismo es costoso:

Rentabilidad de las inversiones públicas?

Quiénes fueron los beneficiarios?


Annual Warm-Season Grasses Vary For Forage Yield, Quality, And Competitiveness With Weeds, Andrew W. Lenssen, S. Dennis Cash 2011 United States Department of Agriculture

Annual Warm-Season Grasses Vary For Forage Yield, Quality, And Competitiveness With Weeds, Andrew W. Lenssen, S. Dennis Cash

Andrew W. Lenssen

Warm-season annual grasses may be suitable as forage crops in integrated weed management systems with reduced herbicide use. A 2-year field study was conducted to determine whether tillage system and nitrogen (N) fertilizer application method influenced crop and weed biomass, water use, water use efficiency (WUE), and forage quality of three warm-season grasses, and seed production by associated weeds. Tillage systems were zero tillage and conventional tillage with a field cultivator. The N fertilization methods were urea broadcast or banded near seed rows at planting. Warm-season grasses seeded were foxtail (Setaria italica L.) and proso (Panicum mileaceum L.) millets, and …


Arkansas Soybean Performance Tests 2011, R. D. Bond, D. G. Dombek, J. A. Still, R. M. Pryor 2011 University of Arkansas, Fayetteville

Arkansas Soybean Performance Tests 2011, R. D. Bond, D. G. Dombek, J. A. Still, 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 System 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.


Rice (Oryza Sativa) Response To Low Glyphosate Rates As Influenced By Cultivar, Growth Stage, And Imazethapyr Applications, Jason R. Meier 2011 University of Arkansas

Rice (Oryza Sativa) Response To Low Glyphosate Rates As Influenced By Cultivar, Growth Stage, And Imazethapyr Applications, Jason R. Meier

Graduate Theses and Dissertations

Off-target movement of glyphosate onto rice is a perennial concern when rice is grown in close proximity to glyphosate-tolernat crops. If differential tolerance to sub-lethal rates of glyphosate exists among rice (Oryza sativa) cultivars, these cultivars could be utilized in breeding programs or glyphosate-drift sensitive areas. Field and greenhouse experiments were conducted in 2006 and 2007 to examine differences among rice cultivars in response to sub-lethal rates of glyphosate, and to examine imidazolinone-tolerant rice response to imazethapyr and sub-lethal rates of glyphosate applied sequentially to determine the potential for either herbicide to predispose rice to greater injury. In the field …


Determination Of Poultry Litter's Nitrogen-Fertilizer Value For Winter Wheat Production, Brett Lee Gordon 2011 University of Arkansas, Fayetteville

Determination Of Poultry Litter's Nitrogen-Fertilizer Value For Winter Wheat Production, Brett Lee Gordon

Graduate Theses and Dissertations

Nitrogen (N) availability in poultry litter (PL) applied in the fall as a nutrient source for winter wheat (Triticum aestivum L.) has not been adequately characterized. Our objective was to determine a potentially available N (PAN) coefficient based on the inorganic-N fertilizer equivalence (FEQ) of fall-applied PL to winter wheat via field and laboratory research. Wheat grown at six site-years received 0, 84 and 168 kg N ha-1 as PL applied preplant and/or at-planting. The FEQ of PL-N was based on growth and yield responses of wheat fertilized with 22 to 191 kg N ha-1 applied in late winter as …


Climate Change And Climate Variability: El Salvador – Impacts On Productivity Of Grain Crops And Opportunities For Management And Improvement, P. V. Vara Prasad 2011 Kansas State University

Climate Change And Climate Variability: El Salvador – Impacts On Productivity Of Grain Crops And Opportunities For Management And Improvement, P. V. Vara Prasad

INTSORMIL Presentations

1. Climate change and climate variability (past and future).

2. Climate change and variability in El Salvador (climate models).

3. Impact of temperature on grain yield of dry bean, maize and sorghum in El Salvador (crop simulation models).

4. Effects of temperature, drought and/or carbon dioxide: experimental evidence (response of grain sorghum, maize and dry bean).

5. Opportunities for crop management and genetic improvement.


Rentibilidad De La Introducción De Nuevas Variedades De Sorgo Del Centa En La Industria Lechera De El Salvador: Ponencia Presentada En La Conferencia Del Centa: "Cambio Climático E Impacto De Los Sorgos Forrajeros" Diciembre 7, 2011, San Salvador, El Salvador, Alexis H. Villacís, John H. Sanders 2011 Purdue University

Rentibilidad De La Introducción De Nuevas Variedades De Sorgo Del Centa En La Industria Lechera De El Salvador: Ponencia Presentada En La Conferencia Del Centa: "Cambio Climático E Impacto De Los Sorgos Forrajeros" Diciembre 7, 2011, San Salvador, El Salvador, Alexis H. Villacís, John H. Sanders

INTSORMIL Scientific Publications

El propulsor del desarrollo agrlcola es la introducción de nuevas tecnologlas. Sorgos fotosensitivos' han sido un componente crítico en la agricultura de las laderas centroamericanas, ofreciendo una reserva o póliza de seguro cuando el alimento básico principal de maiz tambalea. Los sorgos foto-insensitivos han sido introducidos recientemente desde los anos 70 para la siembra en postrera en los valles. En los últimos treinta anos, la introducción de nuevas variedades insensitivas se ha acelerado, en un inicio para las aves de corral y en las dos décadas anteriores para la producción lechera. Este crecimiento ha sido posible gracias a las inversiones …


Diversification Or Cotton Recovery In The Malian Cotton Zone: Effects On Households And Women, Jeanne Yekeleya Coulibaly 2011 Purdue University

Diversification Or Cotton Recovery In The Malian Cotton Zone: Effects On Households And Women, Jeanne Yekeleya Coulibaly

INTSORMIL Scientific Publications

This dissertation investigates income diversification alternatives from the cotton economy and compares those initiatives with present policy measures to restore the cotton sector in Mali. It also derives the welfare implications for women of these various policy measures.

During the decade preceding 2011, farmers’ incomes in the cotton zone of Mali have been significantly affected by the downturn of the cotton economy explained by many factors including the low farm gate cotton price, the declining cotton yields and soil fertility concerns. In 2011, the Malian government substantially increased the farm gate cotton price as a result of the world cotton …


Sorgo Centa S-2 Bmr: Nueva Variedad Forrajera, René Clará Valencia, Salvador Zeledón, Máximo Hernández, Ricardo Estebez Jeorge, Marcos Mejía, Berta Nely Menjivar, Marlon Sorto 2011 CENTA-INTSORMIL

Sorgo Centa S-2 Bmr: Nueva Variedad Forrajera, René Clará Valencia, Salvador Zeledón, Máximo Hernández, Ricardo Estebez Jeorge, Marcos Mejía, Berta Nely Menjivar, Marlon Sorto

INTSORMIL Scientific Publications

El uso tradicional del grano de sorgo en nuestro país ha sido principalmente en la alimentación de especies menores, mientras que los rastrojos de este cultivo se han utilizado para alimentar al ganado bovino especialmente durante la época seca. En ganaderías de subsistencia yen otras explotaciones lecheras más tecnificadas emplean los forrajes conservados como silo o heno para suplir las necesidades alimenticias durante la época seca que es la más crítica para la alimentación.

Algunas ganaderlas tecnificadas prefieren el maíz para ensilarlo debido a su mayor valor nutritivo; sin embargo la incorporación de los genes "bmr' en las nuevas variedades …


Economic Contribution Of The Agricultural Sector To The Arkansas Economy In 2009, Katherine McGraw, Jennie Popp, Wayne Miller 2011 University of Arkansas, Fayetteville

Economic Contribution Of The Agricultural Sector To The Arkansas Economy In 2009, Katherine Mcgraw, Jennie Popp, Wayne Miller

Research Reports and Research Bulletins

This report is the sixth in a series of reports examining agriculture’s economic contribution on the Arkansas economy. Utilizing data from the United States Bureau of Economic Analysis (BEA), USDA Economic Research Service (ERS), USDA National Agricultural Statistics Service (NASS), and Minnesota IMPLAN Group, Inc. (MIG), the economic contribution of agriculture on the Arkansas economy was estimated for the most recent year available, 2009. Gross Domestic Product (GDP) by State information for Arkansas in 2009 was compared with those of other states in the southeast U.S. to give a measure of the relative importance of agriculture in Arkansas.2 The total …


Impact Of Switchgrass Bioenergy Feedstock Production On Soil Carbon Dioxide Flux And Below Ground Soil Organic Carbon Storage In East Tennessee, Leah Denise Soro 2011 University of Tennessee, Knoxville

Impact Of Switchgrass Bioenergy Feedstock Production On Soil Carbon Dioxide Flux And Below Ground Soil Organic Carbon Storage In East Tennessee, Leah Denise Soro

Masters Theses

Bioenergy production from switchgrass has shown promise in restoring degraded soils and helping to mitigate greenhouse gas (GHG) emissions. CO2 loss and C-sequestration in soils are important topics for research to better understand the environmental impacts of bioenergy crops. The need for more thorough research of the carbon cycle in soils used for bioenergy production precipitated the primary interest of this study. The specific objectives of this study were 1) to measure SOC under switchgrass production in order to predict storage of carbon in soils based on previous cropping history, land management, soil physical characteristics, and time; and to …


Integrated Strategies For Controlling Warm-Season Turfgrass Weeds, Matthew Thomas Elmore 2011 University of Tennessee, Knoxville

Integrated Strategies For Controlling Warm-Season Turfgrass Weeds, Matthew Thomas Elmore

Masters Theses

Herbicidal inhibitors of 4-hydroxyphenylpyruvate dioxygenase (HPPD) such as mesotrione, topramezone and tembotrione were evaluated in greenhouse experiments for activity against bermudagrass. While topramezone and tembotrione exhibited greater activity than mesotrione, none of these herbicides provided acceptable bermudagrass control. These herbicides reduced leaf tissue chlorophyll and carotenoid pigment concentrations in bermudagrass. Changes in turfgrass pigmentation were quantified using HPLC analogy as well as evaluations of visual bleaching and measurements of chlorophyll fluorescence yield (Fv/Fm). Results indicated that these more expeditious methods of evaluating HPPD-inhibiting herbicide activity (visual evaluations and Fv/Fm) cannot be used …


Pb1742 Tennessee Cotton Variety Test Results 2011, Chris L. Main, Fred L. Allen 2011 University of Tennessee, Knoxville

Pb1742 Tennessee Cotton Variety Test Results 2011, Chris L. Main, Fred L. Allen

Field & Commercial Crops

Version 5.0


Smp1-3 Insight Into Seed Longevity, Taylor Lloyd 2011 University of Kentucky

Smp1-3 Insight Into Seed Longevity, Taylor Lloyd

Kaleidoscope

No abstract provided.


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