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	Provedor de dados AgEcon (2) Autor Barkley, Andrew P. (2) Nalley, Lawton Lanier (2) Chumley, Forrest G. (1) Crespi, John M. (1) Palavra-chave Public wheat breeding (2) Agribusiness (1) Agricultural research (1) Benefit/cost analysis (1) Crop Production/Industries (1) Economic impact of technological change (1) Farm Management (1) Multiplicative heteroscedasticity (1) O13 (1) Q16 (1) Research and Development/Tech Change/Emerging Technologies (1) Wheat varieties (1) Wheat yield (1) Mais... Tipo do documento Conference Paper or Presentation (1) Journal Article (1) Ano 2008 (2) País United States (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última The Impact of the CIMMYT Wheat Breeding Program on Mexican Wheat Producers and Consumers: An Economic Welfare Analysis AgEcon Barkley, Andrew P.; Nalley, Lawton Lanier; Crespi, John M.. The increase in wheat production in Mexico’s Yaqui Valley from the breeding and development of semidwarf wheat varieties released by CIMMYT is quantified for the period 1990-2002, and the costs and benefits of the wheat research program are estimated and evaluated using a two-region model of the world wheat market. Tipo: Conference Paper or Presentation Palavras-chave: Public wheat breeding; Benefit/cost analysis; Agricultural research; Wheat varieties; Crop Production/Industries; Research and Development/Tech Change/Emerging Technologies. Ano: 2008 URL: http://purl.umn.edu/6931 The Impact of the Kansas Wheat Breeding Program on Wheat Yields, 1911–2006 AgEcon Nalley, Lawton Lanier; Barkley, Andrew P.; Chumley, Forrest G.. This paper quantifies advances of the Kansas Agricultural Experiment Station (KAES) wheat breeding program for two time periods: (1) 1911 to 2006 and (2) 1977 to 2006. Using multiple regression, increases in yields of wheat varieties grown in Kansas are quantified, holding growing conditions and other improvements in productivity constant. Differences in KAES variety yields and those released by other public and private breeders are quantified. During the ‘‘new age’’ of wheat breeding (1977–2006), wheat breeding alone is found to have increased yields by 6.182 bushels per acre, or an average increase of 0.206 bushels per year. Tipo: Journal Article Palavras-chave: Wheat yield; Public wheat breeding; Multiplicative heteroscedasticity; Economic impact of technological change; Agribusiness; Farm Management; O13; Q16. Ano: 2008 URL: http://purl.umn.edu/47267 Registros recuperados: 2 Primeira ... 1 ... Última

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