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Resistance to Penicillium allii in accessions from a National Plant Germplasm System Allium collection

机译:国家植物种质系统葱属种质中对青霉的抗性

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Multiple Allium accessions (garlic, and wild and ornamental Allium species) were screened for resistance using Penicillium allii and A. sativum (positive control). Single accessions of A. aflatunense, A. atroviolaceum, A. stipitatum, and Allium sp. remained asymptomatic. Single accessions of A. roseum and A. senescens, two accessions each of A. acuminatum and A. ampeloprasum and a single accession of A. moly displayed lesion expansion rates not exceeding 22%, 26%, 46%, 50%, 61%, 67% and 67%, respectively, of positive controls. Single accessions of A. sativum var. ophioscordon and A. scorodoprasum displayed rates not exceeding 68% and 55%, respectively, of positive controls with deep wounding, but did not consistently differ with shallow wounding. Accessions of A. canadense, A. sativum or A. longicuspis did not differ, differed inconsistently, or differed insubstantially from positive controls. Lesion expansion rates for A. acuminatum, A. ponticum and A. scorodoprasum were significantly less than in positive controls, but their small bulbs often rotted completely. Results document publicly available germplasm possessing significant resistance to P. allii.
机译:使用青霉Allii和A. sativum(阳性对照)筛选了多个葱属种(大蒜,野生和观赏葱属种)的抗性。 A. aflatunense,A。atroviolaceum,A。stipitatum和Allium sp。的单份。保持无症状。玫瑰A. senescens的单份,尖孢曲霉和两栖曲霉的两个份以及钼的单份显示的病灶扩展率不超过22%,26%,46%,50%,61%分别为阳性对照的67%和67%。番茄单变种的单份。 ophioscordon和A. scorodoprasum显示,深伤阳性对照的发生率分别不超过68%和55%,但与浅伤相比并不一致。 Canadense,A。sativum或A. longicuspis的保藏号与阳性对照无差异,不一致或无显着差异。 A. acuminatum,A。ponticum和A. scorodoprasum的病变扩展率明显低于阳性对照,但它们的小​​鳞茎经常完全腐烂。结果记录了对P. allii具有明显抗性的可公开获得的种质。

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