How to identify new and old vegetable seeds
The counterfeit method of vegetable seeds generally uses the old vegetable seeds as new vegetable seeds, while the old vegetable seeds rarely germinate. The identification method is as follows:
1. Visually observe the seed appearance. In general, the new seeds are smooth and glossy, and the old seeds are dull and have a "salt cream".
2, bite the seeds taste with your mouth. The new taste is fresh and the old taste is like lard.
3. Seed the seed cotyledons by hand. The leaves of the new seeds are pale yellow-green, and the seeds contain more oil, while the old seeds have yellow cotyledons and less oil.
Some simple identification methods for vegetable seeds:
Beans such as soybeans, beans, and cowpeas: The cotyledons of the new seeds are green, full of oil, and have a bitter astringent taste; the cotyledons of the young seeds have dark yellow or khaki-colored markings, and the chewing tastes no scent.
Eggplant, pepper, tomato: The new seed is yellowish-yellow, glowing, and the new hot pepper seeds have a strong spicy taste; the old seeds are yellowish and red, and the pepper and Chen seeds are light in taste.
Pumpkin, cucumber, sponge gourd: The new skin is rich in milky white or white, rich in oil, and has a bitter astringent flavour. Chan seeds are dark yellow, the skin is dark and yellow, or macular, and chewing has oily taste.
Spinach: The new seeds are yellow-green, fresh and white in the seeds; the Chen seeds are yellowish or grayish yellow, have a musty smell, and the starch is light gray to gray.
Cabbage, Cabbage, Radish: The new seeds are smooth and glossy, with a fresh scent. The nails are pressed heavily with oil, broken into flakes, and the cotyledons are light yellow or yellow-green; the seeds of the Chen are not shiny and sometimes appear salty. There is an oily haze, and the cotyledons are easily broken with the nails, and the cotyledons are yellow and have less oil.
Amaranth: The new seed epidermis is wrinkled and shiny, and the seed coat has white spots on the surface. The color is bright and has aroma of leeks; Chen seeds lose turbid seed surface with white frost, and the umbilicus turns from white to yellow.
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