Can the latest onion seeds of the next year still be used?

Sometimes the seeds can not be planted until the next year, for example, a netizen asked, for onions, its shelf life is generally only one year, the germination rate in the second year will be much lower, but it is not absolutely will not germinate, but the germination rate will be reduced, and the growth will be weaker, the following is the preservation time of other vegetable seeds reference!

Onion seeds, leek seeds: must use the new seeds of the current year, the seed emergence rate of the next year is greatly reduced. The surface of the new seed is wrinkled, the dark side is bright and shiny, and there is an obvious white spot on the navel. When the seeds stored for more than one year lose their luster, there is a layer of white frost on the surface, and the navel changes from white to yellow. this kind of seeds have low germination rate and growth potential, so they are not suitable for use.

Tomato seeds: generally can be preserved for 3-4 years, no more than 4 years, otherwise it will reduce the germination rate. There are a lot of small hairs on the new seeds and the smell of tomatoes, while the hairs on the old seeds are less or shedding, and the smell is lighter.

Pepper seeds: no more than 3 years. The new seeds are spicy and golden in color. The germination rate of new seeds is about 90%, the germination rate of storage for 2 years is about 80%, and the germination rate of 3 years will drop to less than 50%.

Celery seeds: can be stored for 5 years, the new seeds can not be used, must be stored for 1 year before they can be used.

Coriander seeds must be stored for 1 year before they can be used, but the storage time should not exceed 3 years. The smell of new coriander seeds is strong, while that of old seeds is lighter. The coriander seed should be broken when sowing, as shown in the picture below, it is easy to germinate!

Eggplant seeds: the storage time can be a little longer, generally within 5 years seeds can be used. The skin of the new seed is bright and milky yellow, while the surface of the old seed is dark red and has no light.

Chinese cabbage seed, radish seed and cabbage seed: the general storage life is 3-4 years, and the germination rate decreases obviously after more than 4 years. The surface of the new seed is smooth and the surface of the old seed is dark. after the seed is crushed with fingernails, the new seed is unbreakable, the old seed is fragile and the seed coat is easy to fall off.

Cucumber seeds can generally be stored for 4 years. The fresh cucumber seed surface is white or milky white, the surface is smooth, the seed tip burr is more sharp, while the old seed surface appears macula, lose luster, the seed tip burr also becomes blunt.