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从全国十四个省市收集的238个小麦亦霉病穗,分离出211个镰刀菌菌株,经鉴定为禾谷镰孢(Fusarium graminearum)、燕麦镰孢(F.avenaceum)、黄色镰孢(F.culmorum)、串珠镰孢(F.moniliforme)、木贼镰孢(F.equiseti)、雪腐镰孢(F.nivale)、半裸镰孢(F.semitectum)、拟直孢镰孢(F.arthrosporioides)八个镰刀菌种,其中以禾谷镰孢为主,占90%。通过苗期和穗期致病力的测定,拟直孢镰孢、禾谷镰孢、黄色镰孢、燕麦镰孢雪腐镰孢为强致病种,木贼镰孢为非致病种,其余为弱致病种。禾芥镰孢分布广,数量多,为主要或优势致病种。拟直孢镰孢、燕麦镰孢、黄色镰孢,雪腐镰孢为次要或稀有的致病种。
238 wheat collected from fourteen provinces and cities in the country also had mildew spikes and 211 Fusarium strains were isolated and identified as Fusarium graminearum, F. avenaeum and Fusarium yellow F.culmorum, F. moniliforme, F. equiseti, F. nivale, F. semitectum, Fusarium verticillioides (F Farthingsporioides Eight Fusarium species, of which Fusarium graminear dominated, accounted for 90%. Fusarium oxysporum, Fusarium graminearum, Fusarium yellow fusarium, Fusarium oxysporum Fusarium oxysporum f.sp. vulgaris was a strongly pathogenic species and Fusarium equiseti was nonpathogenic, The rest are weak pathogenic species. Fusarium graminearum is widely distributed, the number of more, as the main or dominant pathogenic species. Fusarium oxysporum, Fusarium oxysporum, Fusarium yellow, Fusarium oxysporum are secondary or rare pathogenic species.