The seed clarity analysis is to determine the weight percentage of the different components of the test sample and the characteristics of the sample mixture, and to infer the composition of the seed batch accordingly. The purpose is to understand the weight ratio of the three components of net seed, other plant seeds and impurities in the seed batch, so as to provide the basis for seed quality classification. Clarity analysis is generally carried out in a test chamber. The test sample is separated into three components: net seeds, other plant seeds and impurities, and the weight percentages of the various components are determined. All plant seeds and various impurities in the sample were identified as much as possible. Clarity analysis is a very important step in the identification of seed quality, in addition to seed weight, seed moisture content and seed germination rate. Each parameter has its own specific standards and specifications for its determination, such as the vacuum number seeder is used to determine the seed germination rate, and the seed clarity workstation is designed specifically for seed clarity analysis. To a certain degree, the clarity of seeds is greatly improved.
Seed clarity analysis includes two aspects: First, determine the percentage of each component of the test sample. According to GB/T 3543.3-1995, the samples are divided into three components: net seeds, other plant seeds, and impurities. The results for each component are expressed in percent by weight. The second is to analyze the characteristics of the sample mixture. Clarity analysis not only calculates the weight percentage of each component, but also identifies the species to which other plant seeds and impurities in the sample belong. There is a standard for the analysis of the purity of seeds in China. We must carry out a clean degree analysis of the seeds according to GB/T 3543.3-1995 "Analysis of Crop Seeds for Crops - Clarity Analysis". In addition, for the sample seeds to be tested, it is necessary to contain at least 2500 seeds or the medium weight specified in the standard. Because only a certain amount is reached, it can represent the overall quality level of the batch of seeds.
When the seed clarity analysis is at its most primitive stage, there is no instrument to participate at all. It is all done by humans, and it is that the degree of clarity of the seed has little effect on the yield of crops, as long as the seeds are selected, raised, or picked. Picking can guarantee a certain degree of seed clarity. However, with the continuous improvement of the level of agricultural mechanization, many crops have been planted. If seeds have a low degree of cleanliness, they will easily break seedlings and greatly affect crop yields. Therefore, at the same time as the mechanization of agriculture, there is also a requirement for the clarity of the seeds. As a result, the seed clarity analysis platform was developed in this context. Seed clarity analysis platform is designed and manufactured according to the principle of optical transmission, reflection and amplification combined with electronic technology and ergonomic principles. It consists of a three-part integrated transmission light source system, operation console, reflective light source and amplification device. The Seed Cleanness Workbench reflects unmatched superiority in seed cleaning and seed cleanness testing, and is now widely used in agricultural colleges and seed management stations, seed companies, and grain departments at all levels.
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