1.The resistance to downy mildew [Pseudoperonospor cubensis(Berk.et Curt.) Rostov. ] of cucumber can be induced when the cucumber seedlings are treated by the copolymer of chlorine and potassium ions with 2g/kg,5g/kg,(10g/kg),15g/kg and 20g/kg concentration at the stages of cotyledon and first true leaf.
在黄瓜幼苗子叶期及第一真叶期用浓度为2g/kg、5g/kg、10g/kg、15g/kg、20g/kg的氯钾离子共体液进行诱导处理,可使黄瓜植株产生对霜霉病[Pseudoperonospor cubensis(Berk.et Curt.)
2.Downy mildew is caused by Pseudoperonospora cubensis (Berk.& Curt.) Rostov, and is a major foliar disease of cucumber in the world.
黄瓜霜霉病是由古巴假霜霉病菌[Pseudoperonospora cubensis(Berk.& Curt.)Rostov]引起的,是世界范围内黄瓜主要叶部病害之一。
4.Sixty-seven isolates of Colletotrichum musae(Berk. & Curt.) Arx were isolated from banana in 13 regions of Hainan.
对来自海南省13个地区的67个Colletotrichum musae(Berk. & Curt.)