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首页> 外文期刊>Crop and Pasture Science >Resistance to clover scorch disease (Kabatiella caulivora) among accessions of purple clover (Trifolium purpureum) and its relationship to the eco-geography of collection sites
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Resistance to clover scorch disease (Kabatiella caulivora) among accessions of purple clover (Trifolium purpureum) and its relationship to the eco-geography of collection sites

机译:紫色三叶草(Trifolium purpureum)种质对三叶草焦枯病(Kabatiella caulivora)的抗性及其与采集地生态地理的关系

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摘要

Visual ratings of disease reaction to a mixture of races 1 and 2 of clover scorch (Kabatiella caulivora) were conducted on inoculated field plots of 206 accessions of Trifolium purpureum (191 var. purpureum and 15 var. pamphyllicum) collected from the Mediterranean basin and surrounding regions. Disease severity scores of the resistant check, cv. Denmark subterranean clover (T. subterraneum), were clearly differentiated from the susceptible check, cv. Paratta purple clover. Nearly 33% of the accessions were resistant to both races. Resistant plants tended to flower later and originate from higher latitudes, where K. caulivora is more widespread. The results of this investigation led to development of ELECTRA™, the first cultivar of purple clover with resistance to both races of K. caulivora.
机译:对从地中海盆地和周边地区收集的206份紫叶苜蓿(191变紫草和15变淡紫)的接种田间田地进行了对三叶草焦烧(Kabatiella caulivora)第1和第2种混合物的疾病反应的目视评估。地区。抗性检查的疾病严重程度评分,简历。丹麦地下三叶草(T. subterraneum)与易感检查cv有明显区别。 Paratta紫色三叶草。将近33%的种质对这两个种族都有抗药性。抗性植物倾向于开花较晚,并且起源于较高的纬度,在该纬度下,花椰菜更广泛。这项研究的结果导致开发了ELECTRA™,这是紫苜蓿的第一个对两个花椰菜小种都有抗性的品种。

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