The net definition of the net seed and impurities is the degree to which the seed is clean and clean. It is an important indicator of seed quality. Seed clarity can be measured using a blown clarity meter to separate seeds from impurities by adjusting the wind force. In the clarity analysis, the test samples were divided into three components: net seeds, other plant seeds, and impurities. The percentages of the three components were determined, and the types and contents of other plant seeds were also determined. Then in the process of seed's clarity, what are net seeds, impurities, and other seeds?
Good seed: Must be a normal seed; Seeds that cannot be screened with the specified sieve hole; Young roots or young shoots start to break through the seed coat, but the young root or germ has not yet been exposed outside the seed coat Seeds; endosperm or cotyledon damaged, but still more than 2/3 of the seeds are preserved;
Waste seeds: Seeds without embryos; seeds and granules that have been sieved through the prescribed sieve; seeds that do not require sifting are less than one-third of the lean seeds of normal seeds.
Living impurities: weeds and other crop seeds; live pests (including larvae, eggs, and maggots) are not enough for 1/3 of the normal seeds. The nucleus of the nucleus, bacillus, smut, spruce, nematode, and Ying finished with a stalk of rouge.
Inanimate impurities: earth, sand, stones, murine gargocks; seedless embryos of different crops; dead pests and larvae, insect excrements, shredded stems, and shells.
The above is the difference between all seeds and bad seeds in the test of the seed's clarity. When conducting intensive experiments, you can directly perform the degree of clarity test in accordance with the above distinction, and use a blast-type cleanness tester to perform the clarity test. Can quickly distinguish between seeds and magazines to reduce the waste of time.