First, understand the concept of seed cleanliness analysis: Seed cleanliness analysis refers to the determination of the percentage by weight of net seeds, other plant seeds, and impurities in the test sample and the characteristics of the test sample mixture, and then the composition of this sample is obtained.
Analyze the method of rapid identification of seed's clarity: Take out about 200 seeds immediately. The clarity of the identification is firstly viewed from the outside, and there are no impurities such as stones and clods. If there are many impurities, the clarity is low, and vice versa. The second step is to insert the hand into the seed heap and wait until the hand is drawn to see if there is any dust or impurities.
To determine which seeds belong to the net seeds, other plant seeds and impurities, what rules do we follow? The following six situations can provide the basis for a simple and fast identification. (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 of the original seed's own size. Although there are embryos, it should be classified as impurities; (2) Gramineae The net seed of the seed must have endosperm; (3) the structure not described in the net seed definition is classified as impurity, such as peanut husk is classified as impurity; (4) the separation is separated, for example, the length of rice or barley awn exceeds the length of floret, Should be removed as impurities; (5) Damaged seeds that have not apparently injured seed coat or pericarp, whether empty or full, are net seeds or other plant seeds; (6) must quickly determine if the remaining seed units exceed If half of the original size cannot be determined quickly, the seed unit is classified as a net seed or other plant seeds.
Seriously count the good seeds that can be used as seeds, and the impurities that cannot be used as seeds, and other crop seeds, and then make comparisons to determine the seed's clarity. When the degree of clarity is above 98.0%, it is the seed with better quality.
There are certain errors in the determination of such a particle by hand. In comparison, a professional instrument seed blower appears accurate and effective. However, artificially measuring the seed's netity quickly, with small investment and low cost, is suitable for individuals to use their scientific knowledge to analyze the seed's net degree without economic conditions.
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