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首页> 外文期刊>Journal of Arboriculture >Multiple disease resistance to powdery mildew, bacterial blight, and alternaria blight in lilacs (Syringa spp.).
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Multiple disease resistance to powdery mildew, bacterial blight, and alternaria blight in lilacs (Syringa spp.).

机译：丁香对白粉病，细菌性白叶枯病和交链霉病的多重抗病性（丁香属）。

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摘要

Fifty-six lilac accessions were evaluated in a 4-year study for resistance to powdery mildew caused by Microsphaera syringae, bacterial blight caused by Pseudomonas syringae pv. syringae, and Alternaria blight caused by Alternaria alternata. Accessions included 39 cultivars of Syringa vulgaris, four of S. prestoniae, three of S. hyacinthiflora, two of S. josiflexa, two of S. meyeri, two of S. reticulate, and one each of S. patula, S. chinensis, S. henryi, and S. microphylla. Of these, six accessions were resistant or moderately resistant to Alternaria blight and powdery mildew, four to bacterial blight and Alternaria blight, and 20 to powdery mildew and bacterial blight. Two cultivars of S. meyeri, 'Dwarf Korean' and 'Palibin', were resistant to all three pathogens. During this study, the most serious disease of lilacs in middle Tennessee, U.S., was Alternaria blight. It caused severe leaf scorching and defoliation that began in early July. Powdery mildew and bacterial blight caused mostly superficial damage with little effect on growth.
机译：在一项为期4年的研究中，评估了56种淡紫色种质，它们对丁香假单胞菌引起的白粉病，丁香假单胞菌pv引起的细菌性枯萎病具有抗性。丁香和丁香的病害。入选品包括39个普通丁香花，4个prestoniae，3个hyacinthiflora，2个josiflexa，2个meseri，2个网状S.和每一个s。patula，中华S.亨利链球菌和小叶链球菌。其中6种对白粉病和白粉病有抗性或中度抗性，4种对白粉病和白粉病有抗性，对白粉病和白叶病有20种。 Me.eri的两个栽培种，“矮矮朝鲜族”和“ Palibin”，对所有三种病原体均具有抗性。在这项研究中，美国田纳西州中部最严重的丁香病是链霉病。从七月初开始，它导致严重的叶子焦化和落叶。白粉病和细菌性疫病主要造成表面损害，对生长的影响很小。

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