“净度”又名清洁度,是指种子样品中除去杂质后留下本作物的净种子重量占供检样品总重量的百分率.从组成“净度”的三种成份中可以了解到批量种子中净种子、其他作物种子或杂草种子以及杂质所占的百分率,由此推测该批种子的组成,以便提出各种清理杂质的方法,从而提高种子品质. “Clarity ” Also known as cleanliness, refers to the percentage of the net seed weight of the crop leaving the crop after removing impurities in the seed sample, based on the total weight of the sample to be taken from the composition “Clarity ” of the three components can be Knowing the percentage of net seeds, other crop seeds or weed seeds and impurities in bulk seeds, we speculate on the composition of the seeds so that we can come up with various methods of cleaning up the impurities to improve seed quality.