玉米丝黑穗病的发生规律和防治措施探讨

• 作 者: 杨臣瑾
• 机 构: 毕节地区农科所
• 出 处: 贵州农业科学
• 发表日期: 1982年01期
• 关键词: 玉米丝黑穗病 黔北地区 种子处理 内吸作用 播种期 为我 抗性差异 原孢子 晚播 侵染途径

玉米丝黑穗病为我省黔西北、黔北地区的主要病害。经59年试验明确此病以土壤传染为主,肥料次之,种子接种可发病但不带病原。此病发生与播种期关系密切;品种间抗性差异大;利用内吸作用强的药剂处理种子,有一定防效。为此提出了以砍除黑穗为主,结合进行种子处理,轮作及调整播种期的防治措施。

Corn smut is the main disease of Guizhou province in northwestern Guizhou and northern Guizhou. After 59 years of tests clear that the disease is mainly soil infection, followed by fertilizer, seed vaccination can occur without the pathogen. The occurrence of the disease is closely related to the sowing date; there is a big difference in the resistance among the varieties; and the use of a strong systemic agent to treat the seeds has certain control effects. For this reason, we put forward the measures to prevent and control the sowing by combining the seed treatment, rotation and sowing adjustment.