Seed clarity and germination test

The clarity of seeds and germination test to determine the cleanliness of seeds is the degree of cleanliness of a batch of seeds. That is, select good seeds from the test sample and calculate the percentage of the total weight of the sample. In China, the test for the purity of seeds is generally based on the use of precision method for the detection of the degree of clarity. The detection of the degree of clarity of seeds is generally required to observe the epidermis of seeds.
When the seed's clarity is measured, it is carried out as part of the inspection. Not all seed precision tests that are to be tested are generally performed using a blast cleanness instrument to perform initial separation, followed by the use of a seed clarity table. To further observe the seed epidermis, to eliminate the dents and defects of the seed epidermis, to separate the seed impurities and the net seeds by these two instruments, and finally to convert the seeds according to this formula to understand the clarity of the seeds. .
Clarity is calculated as follows: Seed clarity = (total seed weight - impurity weight) / total seed weight × 100%
The inspection procedures stipulate that germination tests should be conducted with good seeds after the clarity test. In the germination experiment, a certain amount is also used for detection. The size of the seeds depends on the size of the seeds. When the seeds are taken, they are usually counted using an automatic photoelectric counting instrument. The purity is determined by the clarity test. Seed standards are different, and the test results obtained by the two test methods are different. Therefore, in the germination test, the germination identification criteria and germination rate results are also different. However, it can provide more reliable technical parameters for agricultural production.
In the process of seed germination, the germination environment of the seeds is very important. In the nature, the environmental variables are more, but in the germination test, the seed germination box can be used to operate. The seed germination box is a The temperature, humidity, and light intensity in the environment are set to promote seed germination by adjusting it.

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