Title
Receptivity of barley to Puccinia graminis f. sp. tritici
Publisher
Canadian Journal of Plant Pathology
Abstract
The receptivity of barley genotypes {Hordeum vulgare) was studied in seedlings and adult plants in the greenhouse and in
adult plants in the field to races I13-RTQ and 151-QSH of Puccinia graminis f. sp. tritici. In the greenhouse, significant
differences in number of uredia/cm2 of leaf were detected due to the effects of races, host genotypes, and their interaction.
The cultivar Hiproly was most receptive (had the most uredia) and 80-TT-29 was least receptive (had the fewest uredia) to
both races at both growth stages. With race 151-QSH, genotypes with the T-gene, 80-TT-29 and Manker had low weighted
infection types (seedling stage), moderately resistant host responses (adult stage), and lower receptivity (both growth stages)
than cultivars lacking this gene. With race 113-RTQ, the T-gene was associated with low receptivity only in 80-TT-29. The
data suggest that gene(s) other than the T-gene may confer receptivity to P. graminis f. sp. tritici. The ranking of genotypes
and the relative differences in receptivity were similar in seedling and adult plants. In the field, genotypes with the T-gene had
mostly moderately resistant reactions and fewer uredia than those without the gene. The significant race x host genotype
interaction in this study suggests that receptivity in barley varies due to the specific host-parasite combination.
Identifiers
doi: http://dx.doi.org/10.1080/07060668709501909
Previously Published Citation
Steffenson, B., & Wilcoxson, R. (1987). Receptivity of barley to Puccinia graminis f. sp. tritici. Canadian Journal of Plant Pathology. Revue Canadienne De Phytopathologie., 9(1), 36-40.
Description
Canadian Journal of Plant Pathology website: http://www.tandfonline.com/loi/tcjp20
Suggested Citation
Steffenson, Brian; Wilcoxson, Roy.
(2009).
Receptivity of barley to Puccinia graminis f. sp. tritici.
Canadian Journal of Plant Pathology.
Retrieved from the University of Minnesota Digital Conservancy,
http://hdl.handle.net/11299/188502.