Czech J. Genet. Plant Breed., 2004, 40(3):79-85 | DOI: 10.17221/3703-CJGPB

Importance of the Secondary Genepool in Barley Genetics and Breeding II. Disease Resistance, Agronomic Performance and Quality

R. Pickering, R.E. Niks, P.A. Johnston, R.C. Butler
1 New Zealand Institute for Crop & Food Research Limited, Christchurch, New Zealand
2 Laboratory of Plant Breeding, Wageningen University, Wageningen, The Netherlands

In this second paper on the use of secondary genepools in barley improvement, we describe the characterisation of leaf rust resistant recombinant lines (RLs) derived from Hordeum vulgare × H. bulbosum crosses. Twelve RLs were inoculated with leaf rust and the early stages of disease development were observed. Several RLs showed complete resistance to the pathogen, but others had a high level of partial resistance, which may be durable. Some of these RLs and others were tested in yield trials to determine the effects of introgressed chromatin from H. bulbosum on yield and quality. We conclude that there are no major adverse effects that cannot be overcome through normal breeding techniques.

Keywords: barley; Hordeum bulbosum; leaf rust; Puccinia hordei; introgressions; yield; malting quality

Published: September 30, 2004  Show citation

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Pickering R, Niks RE, Johnston PA, Butler RC. Importance of the Secondary Genepool in Barley Genetics and Breeding II. Disease Resistance, Agronomic Performance and Quality. Czech J. Genet. Plant Breed. 2004;40(3):79-85. doi: 10.17221/3703-CJGPB.
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