Pyramiding and Validation of Quantitative Trait Locus (QTL) Alleles Determining Resistance to Barley Stripe Rust
Effects on Adult Plant Resistance
Ariel J. Castroa,
Xianming Chenb,
Ann Coreyc,
Tanya Filichkinac,
Patrick M. Hayes*,c,
Christopher Mundtd,
Kelley Richardsonc,
Sergio Sandoval-Islase and
Hugo Vivarf
a Departamento de Producción Vegetal, Est. Exp. "Dr. Mario A. Cassinoni", Facultad de Agronomía, Universidad de la República, Ruta 3 Km.373, Paysandú 60000, Uruguay
b U.S. Department of Agriculture, Agricultural Research Service, Washington State University, Pullman, WA 99164-6430, USA
c Department of Crop and Soil Science, Oregon State University, Corvallis, OR 97331-3002, USA
d Department of Botany and Plant Pathology, Oregon State University, Corvallis, OR 97331, USA
e Instituto de Fitosanidad, Colegio de Postgraduados, Chapingo, Mexico
f ICARDA/CIMMYT, Apdo. 6-641, 06600 Mexico, DF, Mexico

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Fig. 1. Average disease progress curves for doubled haploid lines with different combinations of resistance QTL alleles in two of the six experiments where this phenotype was measured. Figures on the left (98) correspond to the third planting date in 1998. Figures on the right (99) correspond to the first planting date in 1999. Figures in the first panel show results based on untransformed data; figures in the center show the parental lines; and figures in the lower panel show the results from the model adjusted with the Gompertz transformation, which was used to calculate the infection rate.
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Copyright © 2003 by the Crop Science Society of America.