Seed clarity analysis of seed clarity workstation

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Clarity is the percentage by weight of the net seeds of seeds and other plant seeds and impurities and the characteristics of the sample mixture. Through the analysis of the other two components, such as the net seed in the seed sample, the true amount of the clean and available seed in the seed lot is understood to evaluate the quality of the seed. In actual work, it has been found that the standard values ​​of the grain quality of crop seeds such as cereals, fiber, oil, etc. are relatively low, and many seed companies and quality inspection agencies are not paying enough attention, which to a certain extent infringe the interests of consumers. It is not conducive to the integration of China's seed industry and the international community. For the clarity analysis of seeds, there is a very effective instrument called the Seed Clarity Workbench.

Clarity analysis is more complex in the operation and calculation of the four major seed quality inspection items (clarity, purity, germination rate, and moisture). Now it is combined with years of practice and theoretical experience in the analysis and training of cleanliness. Problems that are prone to occur, and put forward the technical requirements for the successful completion of this test for the reference of the seed inspection personnel. The cleanliness value of most crops has increased by one percentage point. Because of the increase in the value of the cleanliness values ​​in the quality standards, the requirements for seed quality have also been correspondingly increased. The analysis of the degree of purity should be caused by the seed companies and inspection agencies in future seed testing. Enough attention.

How to better determine the clarity of the seed, we must fully understand the two main principles of net seed: (1) The damaged seed unit is greater than half of the original seed itself, although there is no embryo, it is still a net seed, and Half is less than half of the original seed's own size, and should be classified as an impurity even if it has embryos; (2) Net seeds of gramineous seeds must have endosperm; (3) Structures not described in the net seed definition are classified as impurities, such as peanut husks (4) Separation of the separation, such as rice, barley awns longer than the length of floret, should be removed as impurities; (5) does not significantly damage the seeds of the seed coat or peel, whether empty or Full, as a net seed or other plant seed; (6) must quickly determine whether the remaining seed unit is more than half of the original size, if you can not quickly make a decision, the seed unit is classified as net seeds or other plant seeds. In the process of analyzing the seed's clarity, the seed cleanness workbench should be used as much as possible to ensure the seed quality.

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