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	Provedor de dados AgEcon (17) Chilean J. Agric. Res. (3) Agrociencia (1) Ciencia e Investigación Agraria (1) BABT (1) Scientia Agricola (1) Mais... Autor Koo, Won W. (17) Taylor, Richard D. (14) Matus,Iván (3) Baek, Jungho (2) Hirzel,Juan (2) Johnson, D. Demcey (2) Madariaga,Ricardo (2) Nganje, William E. (2) Park, Joon J. (2) Alfaro,Christian (1) Ayed,Sourour (1) Ben Salah,Hamadi (1) Ben Younes,Mongi (1) Fayyaz,Farzad (1) Jobet,Claudio (1) Kharrat,Mohamed (1) Mattson, Jeremy W. (1) Mexia,João Tiago (1) Naji,Amir Mohammad (1) Othmani,Afef (1) Mais... Palavra-chave Durum wheat (24) Common wheat (12) Consumption (12) Exports (12) Production (12) Ending stocks (11) Crop Production/Industries (9) Hard red spring wheat (5) International Relations/Trade (4) Agribusiness (3) Demand and Price Analysis (3) Marketing (3) Canadian wheat exports (2) Efficiency gains (2) Market power (2) Marketing pool (2) Operating costs (2) Organizational structure (2) Pool price (2) Production Economics (2) Mais... Tipo do documento Working or Discussion Paper (10) Report (5) Journal article (4) Info:eu-repo/semantics/article (3) Conference Paper or Presentation (1) Journal Article (1) Mais... Ano 2017 (1) 2013 (2) 2011 (3) 2010 (3) 2009 (2) 2008 (1) 2007 (1) 2006 (2) 2005 (2) 2004 (1) 2003 (1) 2002 (2) 1999 (2) 1998 (1) Mais... País United States (17) Chile (4) Brazil (2) Mexico (1) Idioma Inglês (24)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 24 Primeira ... 1 2 ... Última U.S.-CANADA WHEAT TRADE AND ITS EFFECTS ON U.S. PRICE AND INCOME AgEcon Koo, Won W.; Mattson, Jeremy W.. The objectives of this study are to analyze the factors causing an increase in wheat imports from Canada and to estimate the effect of increased wheat imports on U.S. prices and farm income. An econometric model is developed and estimated to determine these factors and effects. Canadian exports to the United States are estimated as a function of U.S. price, the U.S. - Canada exchange rate, and other variables, while U.S. price is estimated as a function of imports from Canada, U.S. domestic supply and consumption, and exports. The two equations are estimated simultaneously. Results from this model are used to estimate the effect of imports from Canada on U.S. farm prices and income. Results indicate that imports from Canada have a significant negative... Tipo: Working or Discussion Paper Palavras-chave: Canada; Bilateral trade; Hard red spring wheat; Durum wheat; Farm price; Farm income; International Relations/Trade. Ano: 2002 URL: http://purl.umn.edu/23572 ECONOMIC ANALYSIS OF THE PROPOSED NORTH DAKOTA WHEAT POOL; SUMMARY AgEcon Koo, Won W.; Nganje, William E.; Johnson, D. Demcey; Park, Joon J.; Taylor, Richard D.. The ND Durum Wheat Pool may provide additional revenue to durum wheat producers by raising the domestic prices in the North American market with full cooperation from the Canadian Wheat Board. The pool also could provide additional revenue to its members by improving marketing efficiency. On the other hand, the ND Spring Wheat Pool is less likely to provide additional revenue to spring wheat producers by raising domestic prices, mainly because hard red spring and winter wheat are highly substitutable. Efficiency gains also could be smaller than for durum wheat. Tipo: Working or Discussion Paper Palavras-chave: Marketing pool; Market power; Efficiency gains; Durum wheat; Hard red spring wheat; Pool price; Organizational structure; Operating costs; Marketing. Ano: 1999 URL: http://purl.umn.edu/23453 2004 OUTLOOK OF THE U.S. AND WORLD WHEAT INDUSTRIES, 2003-2013 AgEcon Koo, Won W.; Taylor, Richard D.. This report evaluates the U.S. and world wheat markets for the 2003-2013 period using the Global Wheat Policy Simulation Model. This analysis is based on a series of assumptions about general economic conditions, agricultural policies, weather conditions, and technological change. Both the U.S. and world wheat economies are predicted to improve for the next 10 years. World demand for both common and durum wheat are expected to grow faster than world production, resulting in gradual increases in prices of the wheat varieties. However, the higher price levels experienced in 2002 and 2003 due to weather conditions will not be maintained in the short-term. World trade volumes of both classes of wheat are expected to expand, but trade volume of durum wheat... Tipo: Working or Discussion Paper Palavras-chave: Common wheat; Durum wheat; Production; Exports; Consumption; Ending stocks; Crop Production/Industries. Ano: 2004 URL: http://purl.umn.edu/23583 2009 Outlook of the U.S. and World Wheat Industries, 2008-2018 AgEcon Koo, Won W.; Taylor, Richard D.. This report evaluates the U.S. and world wheat markets for the 2008-2018 period using the Global Wheat Policy Simulation Model. This analysis is based on a series of assumptions about general economic conditions, agricultural policies, weather conditions, and technological change. Both the U.S. and world wheat economies are predicted to remain relatively healthy for the next ten years. World demand for both common and durum wheat are expected to remain strong. The price levels in 2007 and 2008 will not be maintained in 2009 and future because increased wheat and corn production in 2008 and reduced demand for corn for ethanol production will lower demand and increase supply. World trade volumes of both classes of wheat are expected to expand, but trade... Tipo: Report Palavras-chave: Common wheat; Durum wheat; Production; Exports; Consumption; Ending stocks; Agribusiness; Agricultural and Food Policy. Ano: 2009 URL: http://purl.umn.edu/54725 2005 OUTLOOK OF THE U.S. AND WORLD WHEAT INDUSTRIES, 2004-2013 AgEcon Koo, Won W.; Taylor, Richard D.. This report evaluates the U.S. and world wheat markets for the 2004-2013 period using the Global Wheat Policy Simulation Model. This analysis is based on a series of assumptions about general economic conditions, agricultural policies, weather conditions, and technological change. Both the U.S. and world wheat economies are predicted to improve for the next nine years. World demand for both common and durum wheat are expected to grow faster than world production, resulting in gradual increases in prices of the wheat varieties. However, the higher price levels experienced in 2002 and 2003 due to weather conditions will not be maintained in the short term. World trade volumes of both classes of wheat are expected to expand, but trade volume of durum... Tipo: Working or Discussion Paper Palavras-chave: Common wheat; Durum wheat; Production; Exports; Consumption; Ending stocks; Crop Production/Industries. Ano: 2005 URL: http://purl.umn.edu/23631 1998 OUTLOOK OF THE U.S. AND WORLD WHEAT INDUSTRIES AgEcon Koo, Won W.; Taylor, Richard D.. This report evaluates the U.S. and world wheat markets for the 1997-2007 period by using the World Wheat Policy Simulation Model. This analysis is based on a series of assumptions about general economic conditions, agricultural policies, the weather, and technological change. Both the U.S. and world wheat economies are predicted to be optimistic for the next ten years. World demands for both common and durum wheat are expected to grow faster than world production of the two wheat classes, resulting in gradual increases in prices of the wheats. World trade volumes of both classes of wheat are expected to expand, but trade volume of durum wheat may grow faster than common wheat. Tipo: Working or Discussion Paper Palavras-chave: Common wheat; Durum wheat; Production; Exports; Consumption; Ending stocks.; Industrial Organization; Marketing; Production Economics; International Relations/Trade. Ano: 1998 URL: http://purl.umn.edu/23119 2009 Outlook of the U.S. and World Wheat Industries, 2008-2018 AgEcon Koo, Won W.; Taylor, Richard D.. This report evaluates the U.S. and world wheat markets for the 2008-2018 period using the Global Wheat Policy Simulation Model. This analysis is based on a series of assumptions about general economic conditions, agricultural policies, weather conditions, and technological change. Both the U.S. and world wheat economies are predicted to remain relatively healthy for the next ten years. World demand for both common and durum wheat are expected to remain strong. The price levels in 2007 and 2008 will not be maintained in 2009 and future because increased wheat and corn production in 2008 and reduced demand for corn for ethanol production will lower demand and increase supply. World trade volumes of both classes of wheat are expected to expand, but trade... Tipo: Report Palavras-chave: Common wheat; Durum wheat; Production; Exports; Consumption; Ending stocks; Crop Production/Industries; Demand and Price Analysis; International Relations/Trade. Ano: 2009 URL: http://purl.umn.edu/55118 Price Dynamics in the North American Wheat Market AgEcon Baek, Jungho; Koo, Won W.. This study examines price dynamics in the U.S. and Canadian hard red spring (HRS) and durum wheat markets. Using monthly prices for 1979-2002, we adopt Johansen cointegration tests and a vector error-correction (VEC) model. The results show that U.S. hard red winter (HRW) and Canadian HRS are exogenous in the model consisting of U.S. HRW and HRS and Canadian HRS prices. Canadian durum is exogenous in the model of U.S. and Canadian durum prices. Therefore, the results suggest that the HRW exporting industry and Canada have been the price leader in North American wheat markets. Tipo: Conference Paper or Presentation Palavras-chave: Canadian wheat exports; Durum wheat; Hard red spring wheat; Johansen cointegration test; Unit root test with a structural break; Vector error-correction; Demand and Price Analysis. Ano: 2005 URL: http://purl.umn.edu/19353 2006 OUTLOOK OF THE U.S. AND WORLD WHEAT INDUSTRIES, 2005-2015 AgEcon Koo, Won W.; Taylor, Richard D.. This report evaluates the U.S. and world wheat markets for the 2005-2015 period using the Global Wheat Policy Simulation Model. This analysis is based on a series of assumptions about general economic conditions, agricultural policies, weather conditions, and technological change. Both the U.S. and world wheat economies are predicted to improve for the next nine years. World demand for both common and durum wheat are expected to grow faster than world production, resulting in gradual increases in prices of the wheat varieties. However, the current higher price levels in 2006 are due to weather conditions and will not be maintained, as production is expected to return to normal levels in 2007. World trade volumes of both classes of wheat are expected... Tipo: Working or Discussion Paper Palavras-chave: Common wheat; Durum wheat; Production; Exports; Consumption; Ending stocks; Crop Production/Industries. Ano: 2006 URL: http://purl.umn.edu/23574 2011 Outlook of the U.S. and World Wheat Industries, 2010-2020 AgEcon Taylor, Richard D.; Koo, Won W.. This report evaluates the U.S. and world wheat markets for the 2010-2020 time period using the Global Wheat Policy Simulation Model. This analysis is based on a series of assumptions about general economic conditions, agricultural policies, weather conditions, and technological change. Both the U.S. and world wheat economies are predicted to remain relatively healthy for the next ten years. World demand for both common and durum wheat are expected to remain strong. The price levels in 2010 and early 2011 will not be maintained because they are the result of a small wheat crop in the Former Soviet Union (FSU). It is expected that wheat production in the FSU will return to normal in the future. World trade volumes of both classes of wheat are expected to... Tipo: Report Palavras-chave: Common wheat; Durum wheat; Production; Exports; Consumption; Ending stocks; Crop Production/Industries; Production Economics. Ano: 2011 URL: http://purl.umn.edu/115558 2010 Outlook of the U.S. and World Wheat Industries, 2009-2019 AgEcon Taylor, Richard D.; Koo, Won W.. This report evaluates the U.S. and world wheat markets for the 2009-2019 time period using the Global Wheat Policy Simulation Model. This analysis is based on a series of assumptions about general economic conditions, agricultural policies, weather conditions, and technological change. Both the U.S. and world wheat economies are predicted to remain relatively healthy for the next ten years. World demand for both common and durum wheat are expected to remain strong. The price levels in 2007, 2008 and 2009 might not be maintained in 2010 and the future because increased wheat and corn production in 2008 and 2009 and reduced demand for corn for ethanol production which pressures all commodity prices. World trade volumes of both classes of wheat are expected... Tipo: Report Palavras-chave: Common wheat; Durum wheat; Production; Exports; Consumption; Ending stocks; Agribusiness. Ano: 2010 URL: http://purl.umn.edu/91843 2008 Outlook of the U.S. and World Wheat Industries, 2007-2017 AgEcon Koo, Won W.; Taylor, Richard D.. This report evaluates the U.S. and world wheat markets for the 2007-2017 period using the Global Wheat Policy Simulation Model. This analysis is based on a series of assumptions about general economic conditions, agricultural policies, weather conditions, and technological change. Both the U.S. and world wheat economies are predicted to remain strong for the next ten years. World demand for both common and durum wheat are expected to remain strong. The price levels in 2007, due to high corn demand in the ethanol industry, should be maintained since increases in production are limited due to land constraints in most countries. World trade volumes of both classes of wheat are expected to expand, but trade volume of durum wheat may grow faster than that... Tipo: Report Palavras-chave: Common wheat; Durum wheat; Production; Exports; Consumption; Ending stocks; Agribusiness; Crop Production/Industries. Ano: 2008 URL: http://purl.umn.edu/36757 2007 Outlook of the U.S. and World Wheat Industries, 2006-2016 AgEcon Taylor, Richard D.; Koo, Won W.. This report evaluates the U.S. and world wheat markets for the 2006-2016 period using the Global Wheat Policy Simulation Model. This analysis is based on a series of assumptions about general economic conditions, agricultural policies, weather conditions, and technological change. Both the U.S. and world wheat economies are predicted to improve for the next nine years. World demand for both common and durum wheat are expected to remain strong, however, the current higher price levels in 2006 due to weather conditions will not be maintained as production is expected to return to normal levels in 2007. World trade volumes of both classes of wheat are expected to expand, but trade volume of durum wheat may grow faster than that of common wheat. Tipo: Working or Discussion Paper Palavras-chave: Common wheat; Durum wheat; Production; Exports; Consumption; Ending stocks; Crop Production/Industries. Ano: 2007 URL: http://purl.umn.edu/8507 2002 OUTLOOK OF THE U.S. AND WORLD WHEAT INDUSTRIES, 2001-2011 AgEcon Koo, Won W.; Taylor, Richard D.. This report evaluates the U.S. and world wheat markets for the 2002-2012 period by using the Global Wheat Policy Simulation Model. This analysis is based on a series of assumptions about general economic conditions, agricultural policies, weather conditions, and technological change. Both the U.S. and world wheat economies are predicted to improve for the next ten years. World demands for both common and durum wheat are expected to grow faster than world production of the two wheat classes, resulting in gradual increases in prices of the wheat varieties, which are predicted to increase 15.3% for durum wheat and 17.3% for common wheat for the 2002-2012 period. World trade volumes of both classes of wheat are expected to expand, but trade volume of durum... Tipo: Working or Discussion Paper Palavras-chave: Common wheat; Durum wheat; Production; Exports; Consumption; Ending stocks; Crop Production/Industries. Ano: 2002 URL: http://purl.umn.edu/23514 2003 OUTLOOK OF THE U.S. AND WORLD WHEAT INDUSTRIES, 2002-2012 AgEcon Koo, Won W.; Taylor, Richard D.. This report evaluates the U.S. and world wheat markets for the 2002-2012 period using the Global Wheat Policy Simulation Model. This analysis is based on a series of assumptions about general economic conditions, agricultural policies, weather conditions, and technological change. Both the U.S. and world wheat economies are predicted to improve for the next ten years. World demands for both common and durum wheat are expected to grow faster than world production resulting in gradual increases in prices of the wheat varieties. However, the higher price levels experienced in 2002 due to weather conditions will not be maintained in the short term. World trade volumes of both classes of wheat are expected to expand, but trade volume of durum wheat may... Tipo: Working or Discussion Paper Palavras-chave: Common wheat; Durum wheat; Production; Exports; Consumption; Ending stocks; Crop Production/Industries. Ano: 2003 URL: http://purl.umn.edu/23598 Price Dynamics in the North American Wheat Market AgEcon Baek, Jungho; Koo, Won W.. Perron's test, Johansen cointegration analysis, and a vector error-correction (VEC) model are used to identify structural change, as well as to examine price dynamics in the U.S. and Canadian hard red spring (HRS) and durum wheat markets. It is found that, due to the U.S. Export Enhancement Program (EEP), price instability experienced in June 1986 has resulted in structural changes for Canadian HRS and durum prices. We also find that Canadian prices have significant effects on the determination of the U.S. prices in the North American wheat market. Tipo: Journal Article Palavras-chave: Canadian wheat exports; Durum wheat; Hard red spring wheat; Johansen cointe-gration test; Unit root test with a structural break; Vector error-correction; Demand and Price Analysis; International Relations/Trade. Ano: 2006 URL: http://purl.umn.edu/10217 ECONOMIC ANALYSIS OF THE PROPOSED NORTH DAKOTA WHEAT POOL AgEcon Koo, Won W.; Nganje, William E.; Johnson, D. Demcey; Park, Joon J.; Taylor, Richard D.. The ND Durum Wheat Pool may provide additional revenue to durum wheat producers by raising the domestic prices in the North American market with full cooperation from the Canadian Wheat Board. The pool also could provide additional revenue to its members by improving marketing efficiency. On the other hand, the ND Spring Wheat Pool is less likely to provide additional revenue to spring wheat producers by raising domestic prices, mainly because hard red spring and winter wheat are highly substitutable. Efficiency gains also could be smaller than for durum wheat. Tipo: Working or Discussion Paper Palavras-chave: Marketing pool; Market power; Efficiency gains; Durum wheat; Hard red spring wheat; Pool price; Organizational structure; Operating costs; Marketing. Ano: 1999 URL: http://purl.umn.edu/23173 A comparison between Joint Regression Analysis and the Additive Main and Multiplicative Interaction model: the robustness with increasing amounts of missing data Scientia Agricola Rodrigues,Paulo Canas; Pereira,Dulce Gamito Santinhos; Mexia,João Tiago. This paper joins the main properties of joint regression analysis (JRA), a model based on the Finlay-Wilkinson regression to analyse multi-environment trials, and of the additive main effects and multiplicative interaction (AMMI) model. The study compares JRA and AMMI with particular focus on robustness with increasing amounts of randomly selected missing data. The application is made using a data set from a breeding program of durum wheat (Triticum turgidum L., Durum Group) conducted in Portugal. The results of the two models result in similar dominant cultivars (JRA) and winner of mega-environments (AMMI) for the same environments. However, JRA had more stable results with the increase in the incidence rates of missing values. Tipo: Info:eu-repo/semantics/article Palavras-chave: AMMI models; Genotype by environment interaction; Joint regression analysis; Missing values; Durum wheat. Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162011000600012 Response of Tunisian durum (Triticum turgidum ssp. durum) and bread (Triticum aestivum L.) wheats to water stress Agrociencia Ayed,Sourour; Rezgui,Mohsen; Othmani,Afef; Rezgui,Mounir; Trad,Hiba; Silva,Jaime A. Teixeira-da; Ben Younes,Mongi; Ben Salah,Hamadi; Kharrat,Mohamed. Abstract Wheat is a staple crop in Tunisia, but little is known about the response of Tunisian durum wheat (Triticum turgidumssp.durum) and bread wheat (Triticum aestivum L.) to water stress. In semi-arid regions, where cereals are concentrated, grain yield is subject to water deficit especially due to variability in rainfall. Therefore, the objective of this study was to evaluate the response to water stress of three durum wheat (Mâali, Nasr and Salim) and two bread wheat (Tahent and Utique) varieties. The experimental design was a complete randomized block, water treatments were rainfed conditions (T0) and irrigation applied at the tillering and flowering stages (T1, control) with three replications per treatment, and data was analyzed by ANOVA and Tukey... Tipo: Info:eu-repo/semantics/article Palavras-chave: Water stress; Durum wheat; Bread wheat; Grain yield; Yield components. Ano: 2017 URL: http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1405-31952017000100013 Genetic variation and interrelationships of agronomic characteristics in durum wheat under two constructing water regimes BABT Talebi,Reza; Fayyaz,Farzad; Naji,Amir Mohammad. This work aimed to study the grain yield components and plant characteristics related to grain yield. Twenty-four durum wheat genotypes from the ICARDA durum wheat breeding program were grown during 2006-2007 under rainfed and irrigated conditions using a complete randomized block design with three replicate in west of Iran. Correlation and path analysis were carried out. Results showed that there was strong positive association of grain yield with the number of seed/spike, biomass and harvest index. Grain yield was negatively associated with spike length and plant height in different moisture conditions. Comparatively, high genetic variation was found in grain yield and other characteristics. Hierarchical cluster analysis was used as a tool to classify... Tipo: Info:eu-repo/semantics/article Palavras-chave: Durum wheat; Drought stress; Yield components; Path analysis. Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132010000400006 Registros recuperados: 24 Primeira ... 1 2 ... Última

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