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作物病害的种子传染,危害极大。靠种子传播的病害,如果条件变化不大,便可固定在一个地区年年发生,造成损失。同时,引种的时候,种子传染的病害还可能向远距离传播,造成更为严重的危害。蔬菜种子带病的种类很多,如菜豆、黄瓜的炭疽病,黄瓜角斑病、细菌性枯萎病,菜豆、辣椒的叶斑病、细菌性斑点病、炭疽病,番茄早疫病,芹菜早疫病和晚疫病,十字花科黑胫病和黑腐病等。还有其他许多常见的蔬菜病害也是由种子传播的。因此作好蔬菜种子消毒是防治蔬菜病害的一项重要措施。蔬菜的种子消毒大致可分为药剂处理和热处理两种方法。以下分别加以简单介绍。
Seeds of crop diseases are extremely harmful. Seed-borne diseases, if the conditions are not changed much, can be fixed in a region and occur annually, causing losses. At the same time, the introduction of the time, the transmission of seed diseases may also be transmitted to a long distance, causing more serious harm. There are many kinds of diseases of vegetable seeds, such as beans, cucumber anthracnose, cucumber angular leaf spot, bacterial wilt, bean, pepper leaf spot, bacterial speckle disease, anthracnose, early blight of tomato, early blight of celery Late blight, crucifer black shank and black rot. There are many other common vegetable diseases are also spread by the seeds. Therefore, making vegetable seed disinfection is an important measure to prevent and treat vegetable diseases. Vegetable seed disinfection can be divided into two kinds of agent treatment and heat treatment methods. The following is a brief introduction.