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马铃薯晚疫病菌对甲霜灵敏感性及交配型测定

DOI: 10.7668/hbnxb.2007.S2.062, PP. 260-262

Keywords: 马铃薯晚疫病菌,甲霜灵,敏感性,交配型

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Abstract:

对2004年7月采自河北省围场县甘沟门、棋盘山、哈里哈村和围场县马铃薯研究所试验地及温室的26个马铃薯晚疫病菌株进行甲霜灵敏感性评价。敏感性测定结果表明,在26个被测菌株中高抗菌株23个,占被测菌株的88.5%;高度敏感菌株、敏感菌株和中抗菌株各1个,分别占被测菌株的3.85%。对甲霜灵高抗菌株在病菌群体中占绝对优势,而且抗性程度很高,浓度为100μg/mL的甲霜灵对46.2%的被测菌株没有任何抑制效果。交配型的测定结果表明2004年采自河北省围场县的26个菌株全部为A1交配型。

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