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The grain weight of a cucumber seed must be 30g or more. This experiment will be divided into 5 grades according to the degree of seed plumpness: A. Thousand-mass mass 30g or more; B, 1000-grain mass 25-30g; C, 1000-grain Quality 22-25g; D, Thousand grain quality 18-22g; E, Thousand grain mass 18g or less. For tests, the seed germination test is preferably performed using a seed germination box. The result is as follows: 
From the figure above, it is easy to see that the germination rate of seeds and the yield of cucumber have a great relationship with the fullness of seeds. When the seed weight is less than 18g, the seed germination rate is only 2.3%, but its output is 0. As the seed plumpness increases, the seed germination rate and the final yield are all increasing.
The linear relationship between seed weight and seed germination rate and final yield
The linear relationship between the seed weight and the seed germination rate and the final yield is whether or not the seed plumpness has a greater impact on the germination rate of the seed, because the plump seeds have more nutrients contained in them and the seeds are healthy and can provide seed germination. Good nutrition backing. The reason why the seeds are not full is because the seed has tiny grains due to congenital nutrient deficiency, and the nutrients are far behind the nutrient requirements in the process of seed germination and growth. At the same time, the fullness of the seed will affect the yield of the crop to a certain extent. The detection of seed plumpness can be performed using the seed counting instrument. This instrument is referred to as the particle counting device. In the following, cucumber is used as an example to understand the effect of fullness on germination rate and yield.