Using Environmental Covariates to Explain Genotype x Environment and QTL x Environment Interactions for Agronomic Traits on Chromosome 3A of Wheat
B. T. Campbella,
P. S. Baenziger*,b,
K. M. Eskridgec,
H. Budakb,
N. A. Streckd,
A. Weisse,
K. S. Gillf and
M. Eraymang
a Rice Exit. Station, Calif. Coop. Rice Res. Foundation, Biggs, CA 95917
b Dep. of Agronomy and Horticulture, Univ. of Nebraska, Lincoln, NE 68583
c Dep. of Biometry, Univ. of Nebraska, Lincoln, NE 68583
d Departamento De Fitotecnia, Universidade Federal de Santa Maria, Centro de Ciências Rurais, Santa Maria, RS, Brazil 97105-900
e Dep. of Natural Resources, Univ. of Nebraska, Lincoln, NE 68583
f Dep. of Crop and Soil Sciences, Washington State Univ., Pullman, WA 99164
g Dep. of Field Crops, Mustafa Kemal Univ., Antakya, Turkey 31034

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Fig. 1. Differences in the grain yield differential between the Wichita and Cheyenne genotypes at Xbarc67 (Wichita genotypeCheyenne genotype) across environments differing for (a.) mean daily temperature during vegetative growth (T1) and (b.) mean daily temperature during reproductive growth (T2).
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Fig. 2. Differences in the number of kernels per square meter differential between the Wichita and Cheyenne genotypes at Xbcd1555 (Wichita genotypeCheyenne genotype) across environments differing for total precipitation accumulated during reproductive growth (P2).
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Copyright © 2004 by the Crop Science Society of America.