品质优良的种子是指纯净一致、饱满完整、无病虫杂草、发芽率和活力高、抗逆性和抗病虫害能力强。
The seeds with good quality are pure and uniform, full and complete, free of pests and weeds, high germination rate and vigor, strong resistance to adversity and pests.
在购买种子种苗时，一定要事先做品质鉴定，主要内容有：千粒重（或大粒种子百粒重）、纯净度、含水率、成色气味和发芽率等。如果没有达到标准，说明该种子没有发育好，不能作为播种种子使用。一般情况下，进行发芽试验是检验种子质量的有效办法，试验时，对种子进行正确播种的前提下，还要注意发芽条件，如柴胡种于发芽温度较低，高温影响发芽。同时，对某一药材种子的发芽率要有正确的认识，如柴胡、白芷种子，即使是新种子，发芽率也较低。同时，在购买和运输时应通过种子检疫部门检疫，并要了解产地病虫害情况和种子、种苗的健康状况，防止带病虫害的种子种苗影响种植药材的效益。
When purchasing seeds and seedlings, quality identification must be done in advance, the main contents are: 1000 grain weight (or 100 grain weight of large seed), purity, water content, color odor and germination rate, etc. If it does not meet the standard, it means that the seed is not well developed and can not be used as seed. Generally speaking, germination test is an effective way to test the quality of seeds. In the test, on the premise of correct sowing of seeds, we should pay attention to germination conditions, such as the germination temperature of Bupleurum seeds is low, high temperature affects germination. At the same time, we should have a correct understanding of the germination rate of a certain medicinal seed, such as bupleurum, angelica seeds, even new seeds, the germination rate is also low. At the same time, when purchasing and transporting, it is necessary to pass the quarantine of seed quarantine department, and understand the disease and pest situation in the production area and the health status of seeds and seedlings, so as to prevent the seeds and seedlings with diseases and pests from affecting the benefit of planting medicinal materials.