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叶面水湿持续时间对烤烟棒孢霉叶斑病的影响
Effects of Dew Period on Leaf Surface on the Leaf Spot Disease of Flue-cured Tobacco Caused by Corynespora Cassiicola
【摘要】 烤烟接种棒孢霉叶斑病菌后保湿12h或每d保湿12h,病情发生都较轻微;保湿24～36h,病情发生较明显至较严重;保湿48～72h,病情发生较严重至严重。预先保湿后再接种,然后再保湿12h,病情加重。笔者认为连续雨天、叶面水湿持续24h以上是病害明显或严重发生的必要条件之一。
【Abstract】 When inoculated plants were placed in a moist chamber for 12 hours only or 12 hours every night,the disease occurred slightly.When inoculated plants were placed in a moist chamber for 24～36 hours,the disease occurred obviously,and for 48～72 hours occur severely.We proposed that the continuous raining and > 24 hours dew period on surface were two prerequisites for the disease obvious or servere occurance.
【关键词】 烤烟；
棒孢霉叶斑病；
叶面水湿时间；
【Key words】 flue-cured tobacco； corynespora leaf spot； leaf surface dew period；
【Key words】 flue-cured tobacco； corynespora leaf spot； leaf surface dew period；
【基金】 国家烟草专卖局基金项目(794)
- 【文献出处】 中国烟草科学 ,Chinese Tobacco Science , 编辑部邮箱 ,2007年01期
- 【分类号】S435.72
- 【被引频次】7
- 【下载频次】69