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梅疮痂病的研究 Ⅰ 病原生物特性及药剂防治
引用本文:冷怀琼,陈泽勇,赵玲.梅疮痂病的研究 Ⅰ 病原生物特性及药剂防治[J].四川农业大学学报,1987(1).
作者姓名:冷怀琼  陈泽勇  赵玲
作者单位:四川农业大学,四川农业大学,四川农业大学
摘    要:1.对疮痂病菌(Cladosporium carpophilum)的生物学特性作了研究。其结果:(1)分生孢子荫发的最适温度为25℃;(2)分生孢子在黑暗中萌发率最高,其次是在黑光中;(3)分生孢子萌发的最适pH值为6;(4)分生孢子只能在水滴中萌发;(5)分生孢子萌发与营养条件有关。在蒸馏水中萌发率为52%,在葡萄糖液中为90%。在2%梅煎中汁中孢子萌发后芽管迅速发展成菌丝;(6)分生孢子寿命在25℃干燥的条件下为15天。 2.田间药剂防治以50%多菌灵700倍液最好,对感病品种的果实防效可达75%以上。

关 键 词:梅(45NC  49EC)  植物病害(49LB)  防治(83NA)

STUDIES ON PLUM SCAB CAUSED BY CLADOSPORIUM CARPOPHILUM Ⅰ. ON BIOLOGICAL CHARACTERISTICS OF THE PATHOGEN AND THE CHEMICAL Control
Leng Huaiqiong et al.STUDIES ON PLUM SCAB CAUSED BY CLADOSPORIUM CARPOPHILUM Ⅰ. ON BIOLOGICAL CHARACTERISTICS OF THE PATHOGEN AND THE CHEMICAL Control[J].Journal of Sichuan Agricultural University,1987(1).
Authors:Leng Huaiqiong
Abstract:The optimum temperature for the germination of conidia is 20—25℃ . The percentage of the highest germination rate of conidia is in darkness and of the second highest in black light. The optimum PH for the germination of conidia is 6 . Conidia germinate only in water drops. The germination is closely related to nutrients. The percentage of the germination is 52% in bistilled water and 90% in 1% glucose solution The germ tubes develop rapidly into mycelium in the 2 % juice of Plum branch. The life span of conidia is adou t15 days under dry conditions at an average day temperature of 25℃, Experiments showed that spraying Carbendazl 50% WP was an effective control (at 75% level) for the fruits of sensitive varieties.
Keywords:MUME  PLANT DISEASE  PREVENTIVE TREATMENTS  
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