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The Impact of the Kansas Wheat Breeding Program on Wheat Yields, 1911-2006

Published online by Cambridge University Press:  26 January 2015

Lawton Lanier Nalley ,
Andrew Barkley  and
Forrest Chumley
Lawton Lanier Nalley
Affiliation:
Department of Agricultural Economics and Agribusiness, University of Arkansas, Fayetteville, AR
Andrew Barkley
Affiliation:
Department of Agricultural Economics, Kansas State University, Manhattan, KS
Forrest Chumley
Affiliation:
Kansas Agricultural Experiment Station, Kansas State University, Manhattan, KS
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Abstract

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.

Keywords

wheat yieldpublic wheat breedingmultiplicative heteroscedasticityeconomic impact of technological changeO13Q16
Type
Research Article
Information
Journal of Agricultural and Applied Economics , Volume 40 , Issue 3 , December 2008 , pp. 913 - 925
Copyright
Copyright © Southern Agricultural Economics Association 2008

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