农作物种子净度的概念,根据中华人民共和国国家标准发布的《农作物种子检验规程》规定。它是指样品中去掉杂质和废种子以后留下的本作物的好种子的重量占样品总重量的百分率。种子净度检验是种子检验的一个重要环节,是正确地估计种子利用价值以确定播量的有效方法;并根据净度检验的结果为种子的精选加工提供科学依据和处理意见。 The concept of crop seed cleanliness, according to the People’s Republic of China issued by the national standard “Seed Seeds Inspection Regulations” provisions. It refers to the sample, the removal of impurities and spent seeds after the good seeds of this crop weight percentage of the total weight of the sample. Seed purity test is an important part of seed testing, and it is an effective way to estimate seed utilization value correctly to determine the sowing rate. According to the result of the clarity test, it provides scientific basis and processing advice for the seed processing.