1. Color: Seeds that are yellow in color and bright in color are excellent seeds. 2. Full condition: The plump seeds are excellent seeds; the late fruits or poorly developed fruits have poor seed development and poor plumpness. 3. Regularity: The higher the uniformity of the seed size and color, the better the purity and quality of the seed. 4. Purity: The higher the purity of the seed, the better the quality of the seed. The purity of the seeds is generally expressed as the percentage of the total weight of the tested seeds after removing the impurities and the weight of the pure seeds after the weight of the seeds, and the purity of the excellent seeds should not be lower than 98%. 5. Germination: Take a certain amount of seeds (at least 100) and germinate in a suitable germination environment. Buds that emerged within 6 days and had relatively neat budding were excellent seeds; after 10 days, the germination rate reached 90 to 98% was an excellent seed. Hair Removal Machine,Hair Removal Device,Best Hair Removal Device,Laser Hair Removal Device Shenzhen Jie Zhong Lian Investment Co., Ltd. , https://www.szmeizons.com