作　　者： ; ; ; ; (李天瑶）;

机构地区： 仲恺农业技术学院

出　　处： 《广东农业科学》 2006年第2期55-58,共4页

摘　　要： 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pH2～10条件下均能生长、最适pH值为5，分生孢子在pH2～7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。 The effect of temperature, pH and moisture on the mycelial growth, and conidial germination of Aloe vera anthracnose fungus （ Colletotrichum gloeosporioides Penz. ） was primarily studied. For the mycelial growth of Colletotrichum gloeosporioides , the range of suitable temperature was 25～35 12, the optimum being 3012, and the range of pH was 2～10, the optimum being 5. For the conidial germination , the range of suitable temperature was 20～3012, the optimum being 2512, and the range of pH was 2～7 , the optimum being 4～6. When relative humidity reached 100% or in water, the percentage of conidial germination was highest. The lethal temperature for the spores was 5012 remaining 10 minutes. 50% sporgon, 80 % prochlorax, 4596 thriam carbendazim, 30 % copper oxychloride and difenoconazole can be very effective in controlling these disease of mycelial growth and conidospore germination.

关 键 词： 库拉索芦荟 炭疽菌 生物学特性 毒力测定

领　　域： [农业科学] [农业科学]