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Dissimilarity of barley powdery mildew resistances Lomerit and Heils Hanna

Author

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  • Antonín DREISEITL

    (Agrotest Fyto Ltd., Kroměříž, Czech Republic)

Abstract

The resistance Heils Hanna (HH) was postulated in several tens of 471 previously tested winter barley cultivars. In this paper, new tests on 29 of these cultivars are reported. Thirty-two reference isolates of Blumeria graminis f.sp. hordei held in the pathogen genebank at the Agricultural Research Institute in Kromeriz, Ltd. including a Japanese isolate and five Israeli isolates were used for response tests. However, the resistance HH conferred by the gene Mla8 and herein characterised by reaction type 0 to an old Japanese isolate known as Race I was now postulated only in four cultivars. In the other 25 cultivars another resistance, characterised by reaction type 0 to Race I and also to two Israeli isolates, was detected. In addition to the two mentioned resistances, eight known (Bw, Dr2, Ha, IM9, Ln, Lv, Ra and Sp) resistances were found in the set examined. Lomerit was the only registered cultivar tested here in which the newly detected resistance was present alone, therefore, it is recommended that this resistance be designated Lo.

Suggested Citation

  • Antonín DREISEITL, 2011. "Dissimilarity of barley powdery mildew resistances Lomerit and Heils Hanna," Czech Journal of Genetics and Plant Breeding, Czech Academy of Agricultural Sciences, vol. 47(3), pages 95-100.
    • Handle: RePEc:caa:jnlcjg:v:47:y:2011:i:3:id:45-2011-cjgpb
    DOI: 10.17221/45/2011-CJGPB
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