库拉索芦荟炭疽病菌生物学特性与药剂毒力测定研究

Guangdong Agricultural Sciences(2006)

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Abstract
对芦荟炭疽病危害症状、形态特征的观察以及温度、湿度、pH值对库拉索芦荟炭疽病菌生长和孢子萌发的影响研究结果表明:该菌菌丝生长适宜温度为25~35℃、最适温度为30℃,分生孢子萌发适宜温度范围为20~30℃、最适温度为25℃;该菌在pH 2~10条件下均能生长、最适pH值为5,分生孢子在pH 2~7条件下均能萌发、最适pH值为4~6;分生孢子在饱和湿度或水滴中萌发快,相对湿度低于60%时不能萌发;分生孢子的致死温度为60℃。不同防治药剂的毒力测定结果表明,50%施保功、80%炭疽立克、45%炭轮快克、30%氧氯化铜和10%世高等5种杀菌剂的抑菌作用明显。
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Key words
Aloe vera,Colletotrichum gloeosporioides,biological characteristic,germicide determine
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