Seed clarity refers to the percentage of normal corn kernel weight in a given amount of seeds, including impurities other than corn kernels. The 100% pure seeds have no impurities. The degree of clarity is calculated as follows: Seed clarity = (total seed weight - impurity weight / total seed weight) × 100%. When using the clarity test, you can use the seed clarity watchstand to analyze and predict.
The blast type net clarity instrument is also called the wind selection net degree instrument. It is a kind of speciality used for the purity of the seeds developed by electronic control technology on the basis of the introduction and reference of the technology of similar products of the United States and other countries by Zhejiang Top Instrument Co., Ltd. Test Instruments. The FJ-1 Air Purity Cleaner satisfies the needs of a variety of seed and grain cleanliness tests, and achieves fast and ideal clarity with bluegrass, Dactylis and other plant seeds and impurities. Its excellent performance in seed cleaning and cleanliness testing is mainly applied in agricultural colleges and universities, seed management stations, seed companies, and grain departments.
The key to the analysis of seed clarity is to distinguish net seeds from other plant seeds and impurities. Although there are some rules that can be referenced, we still have to specifically consider the genus or species of seeds for the actual problems we encounter, and then target different species. For different analysis. The following six methods are simply to determine which type of seed is measured.
(1) The damaged seed unit is larger than half of the original seed's own size. Although there is no embryo, it is still a net seed, and the other half is less than half the size of the original seed. Although there are embryos, it should be classified as impurities;
(2) Net seeds of grass seeds must have endosperm;
(3) Structures not described in the net seed definition are classified as impurities, eg, peanut husks are classified as impurities;
(4) The separation of the separation, such as rice, barley awning longer than the length of the floret, should be removed as impurities;
(5) Damaged seeds, which are not significantly damaged by seed coat or pericarp, are net seeds or other plant seeds regardless of whether they are empty or full.
(6) It must quickly determine whether the remaining seed unit is more than half of its original size. If it cannot make a quick decision, the seed unit is classified as a net seed or other plant seed.
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