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首页> 外文期刊>Canadian Journal of Plant Science >Evaluation of soybean cultivars for resistance to Phomopsis longicolla and Sclerotinia sclerotiorum using excised leaves
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Evaluation of soybean cultivars for resistance to Phomopsis longicolla and Sclerotinia sclerotiorum using excised leaves

机译：用切除的叶片评价耐肺部耐药抗性和巩膜肺刺菌

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摘要

The resistance of short-season soybean cultivars in Canada to Phomopsis longicolla and Sclerotinia sclerotiorum was measured on excised leaves based on the disease severity. Lesions caused by both fungi were first observed at inoculation sites within 24 to 36 h after excised leaflets were inoculated, varying among cultivars, and whole leaflets rot within 5-6 d for susceptible cultivars. Of the 74 cultivars evaluated, 20 were significantly more resistant to P. longicolla (LSD = 1.1, P < 0.05) and 19 to S. sclerotiorum (LSD = 1.0, P < 0.05), with mean severity ratings ranging from 1.3 to 2.3 caused by both fungi. Seven cultivars including Medallion, M. Arrow Brown, Alta, Portage, AC Albatros, Comet, and Pagoda, showed partial resistance to both of pathogens. These resistant cultivars identified in this study may be used as sources of resistance in future field breeding programs in Canada.
机译：基于疾病严重程度，测量了在切除的叶片中测量加拿大短季大豆品种对PhoMopsis的抗性的抵抗力。 首先在24至36小时内观察到由两种真菌引起的病变在切除的叶片接种，在品种之间发生变化，在5-6d中腐烂以易感品种。 在评估的74种品种中，20种耐菌（LSD = 1.1，P <0.05）和19至S.Sclerotiorum（LSD = 1.0，P <0.05）的耐药性显着更大，平均严重程度范围为1.3至2.3 通过真菌。 七种品种包括奖章，M.箭头棕色，阿尔塔，搬运工，ac albatros，comet和宝塔，表现出偏重于病原体。 本研究中确定的这些抗性品种可作为加拿大未来的野外繁殖计划中的抵抗来源。

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