Selection Environments for Maize in the U.S. Western High Plains
Fernando R. Guillen-Portala,*,
W. Ken Russellb,
Kent M. Eskridgec,
David D. Baltenspergerd,
Lenis A. Nelsonb,
Nora E. D'Croz-Masonb and
Blaine E. Johnsone
a Northwestern Agricultural Research Center, 4570 MT 35, Kalispell, MT 59901
b Dep. of Agronomy and Horticulture, Univ. of Nebraska, Lincoln, NE 68583
c Dep. of Biometry, Univ. of Nebraska, Lincoln, NE 68583
d Panhandle Research and Extension Center, Univ. of Nebraska, Scottsbluff, NE 69361
e Pioneer Hi-Bred Int., A DuPont Company, 19456 State Hwy. 22, Mankato, MN 56001

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Fig. 1. Scatter plot of environmental similarity ratio (ESR) vs. yield differences for maize of environmental pairs across 12 environments(A) all possible pairs of environments and (B) only fully irrigatednonirrigated pairs of environments. * Significant at the 0.05 probability level.
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Copyright © 2004 by the Crop Science Society of America.