McLean Mark S, Howlett Barbara J, Turkington T Kelly, Platz Greg J, Hollaway Grant J
BioSciences Research, Department of Primary Industries, Horsham, VIC, 3401, Australia, and School of Botany, The University of Melbourne, VIC, 3010, Australia.
School of Botany, The University of Melbourne, Australia.
Plant Dis. 2012 Apr;96(4):569-576. doi: 10.1094/PDIS-06-11-0477.
The responses of 95 barley lines and cultivars to spot form of net blotch (SFNB) caused by Pyrenophora teres f. maculata were analyzed as seedlings and adults in Australia and Canada. Cluster analyses revealed complex reaction responses. Only 2 lines (Esperance Orge 289 and TR3189) were resistant to all isolates at the seedling stage, whereas 15 lines and cultivars (81-82/033, Arimont, BYDV-018, CBSS97M00855T-B2-M1-Y1-M2-Y-1M-0Y, CI9776, Keel, Sloop, Torrens, TR326, VB0111, Yarra, VB0229, WI-2477, WI2553, and Wisconsin Pedigree) were resistant toward the two Canadian isolates and mixture of Australian isolates at the adult stages. In Australian field experiments, the effectiveness of SFNB resistance in three barley cultivars (Barque, Cowabbie, and Schooner) and one breeding line (VB9104) with a different source of resistance was tested. Barque, which possessed a resistance gene that provided complete resistance to SFNB, was the most effective and showed no effect on grain yield or quality in the presence of inoculum. Generally, cultivars with seedling or adult resistance had less disease and better grain quality than the susceptible control, Dash, but they were not as effective as Barque. A preliminary differential set of 19 barley lines and cultivars for P. teres f. maculata is proposed.
在澳大利亚和加拿大，对95个大麦品系和品种的幼苗及成株期针对由斑点网斑病菌（Pyrenophora teres f. maculata）引起的斑点型网斑病（SFNB）的反应进行了分析。聚类分析揭示了复杂的反应情况。在幼苗期，只有2个品系（埃斯佩兰斯大麦289和TR3189）对所有分离株具有抗性，而在成株期，有15个品系和品种（81 - 82/033、阿里蒙特、BYDV - 018、CBSS97M00855T - B2 - M1 - Y1 - M2 - Y - 1M - 0Y、CI9776、龙骨、斯卢普、托伦斯、TR326、VB0111、亚拉、VB0229、WI - 2477、WI2553和威斯康星谱系）对两种加拿大分离株以及澳大利亚分离株混合物具有抗性。在澳大利亚的田间试验中，对三个具有不同抗性来源的大麦品种（巴克、考瓦比和纵帆船）以及一个育种系（VB9104）的SFNB抗性效果进行了测试。拥有对SFNB提供完全抗性的抗性基因的巴克最为有效，在有接种体存在的情况下对谷物产量或品质没有影响。一般来说，具有幼苗期或成株期抗性的品种病害比感病对照品种达什少，谷物品质更好，但它们不如巴克有效。提出了一套针对斑点网斑病菌的19个大麦品系和品种的初步鉴别集。
