Stem rust epidemics and their effects on grain yield and quality in Australian barley cultivars

R. Dill-Mucky, R. G. Rees, G. J. Platz

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

The progress of epidemics of Puccinia graminis f. sp. tritici strain 343-Anz-1,2,3,5,6 was examined in field plots of the Australian barley cultivars Clipper, Corvette, Galleon, Grimmett, Prior and Schooner. The barley Purple Nudum, reported to possess seedling resistance to Puccinia graminis f. sp. tritici, and the susceptible wheat Oxley were also examined. Additional rust-free treatments were maintained to provide comparisons of grain yield and quality. Differences in the rate of epidemic development between cultivars were found. Moderate epidemics developed in Clipper, Schooner, Grimmett and Prior and no significant losses in yield were detected in Grimmett or Prior. Severe epidemics developed in Galleon, Corvette and Oxley and reduced grain yield by about half. Yield reductions were generally associated with reduced grain size and weight.

Original languageEnglish (US)
Pages (from-to)1057-1063
Number of pages7
JournalAustralian Journal of Agricultural Research
Volume41
Issue number6
DOIs
StatePublished - 1990
Externally publishedYes

Bibliographical note

Funding Information:
The valuable assistance of Mr A. Mayne and advice on statistical analyses by Mr R. J. Mayer are gratefully acknowledged. This program was financed by the Barley Research Council.

Copyright:
Copyright 2016 Elsevier B.V., All rights reserved.

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