The Impact of the Kansas Wheat Breeding Program on Wheat Yields, 1911–2006
2017
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. Usingmultiple regression, increases in yields of wheat varieties grown in Kansas are quantified,holding growing conditions and other improvements in productivity constant. Differencesin KAES variety yields and those released by other public and private breeders arequantified. During the ‘‘new age’’ of wheat breeding (1977–2006), wheat breeding alone isfound to have increased yields by 6.182 bushels per acre, or an average increase of 0.206bushels per year.
显示更多 [+] 显示较少 [-]