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优良的中药种子是不允许带有病害的,或是只允许在某一最大限度范围内带一些当地有的病害。至于检疫性的病原物,是绝对不允许带走的,若超过一定限度,而不加以种子处理,也不能作为种子来繁殖和种植推广。为了消灭危害性的病害,控制传播,必须进行种子病害的检验。种子病害的检验方法,因种子带病类型、病原性质不同而有所差异。现介绍五种检验方法。1.肉眼检验法将有代表性样品放在白纸或白色搪瓷盆中,检出病粒或病原体,称其重量,计算百分率;或用计算粒数的方法,也可求得百分率。然后,用5-10倍的放大镜,识别病粒的症状,或病原物的子实体,分别归类,可计算百分率。肉眼检验时,发现有症状明显的种子,肯定是带病害的,但是无症状的种子,并不一定是无病的种
Good seeds of Chinese medicine are not allowed to carry the disease, or only allowed to bring some local diseases within a certain maximum extent. As for quarantine pathogens, it is absolutely not allowed to take away, if more than a certain limit, without being treated with seeds, it can not be used as seeds to propagate and plant promotion. In order to eliminate harmful diseases and control spread, we must test seed diseases. Seed disease test methods, due to the type of seed disease, pathogenic differences in the nature of different. Now introduce five kinds of test methods. 1. Macroscopic test will be a representative sample on white paper or white enamel pot, the detection of particles or pathogens, said the weight, calculate the percentage; or calculated by the method of particle size, but also can be obtained. Then, with 5-10 times the magnifying glass, identify the symptoms of the disease, or pathogenic sub-entities, respectively, classified, can calculate the percentage. Visual inspection revealed that symptomatic seeds were found to be diseased, but asymptomatic seeds did not have to be disease-free