There is a great relationship between the germination rate of vegetables and their storage period. Different kinds of vegetables, their storage life is not the same. Tomato seeds can generally be stored for 3 to 4 years and not longer than 4 years, otherwise it will reduce the germination rate. Identification of new and old seed methods; there are many small hairs on the new seeds, and there is tomato flavor; the old seeds have less velvet hair or shedding, and the smell is also small. Cucumber seeds last for at least 2 and 3 years. After this period, the germination rate is generally reduced by 20-30%. Even if some of them can emerge, they often have no true leaves after emergence and are not easy to survive. Eggplant seeds can be stored for a longer period of time. Seeds within 6 years are generally available. The new seeds have a glossy skin, but the gloss fades as the shelf life increases. Pepper seeds can not exceed 3 years, otherwise the germination rate will decrease. According to the experiment, the germination rate of the new seeds is above 89%, and about 79.8% after two years of storage. The three-year germination rate will decrease by about 47%. The color is golden yellow for the new seeds, and the Chen seeds are apricot yellow. In spring onion seedlings, we must use new seeds in the spring of that year. If we use the first year seed, the shallot will grow after it grows. Coriander seeds must be stored for one year before they are used, but the storage time should not exceed three years. The new-seed coriander has a strong odor and the scent of the old seeds is reduced. Celery seeds can be stored for 3 years. The seeds cannot be used in the year and must be kept for 1 year before they can be used. The leek seed must be used in the same year as the new seeds, if the rate of emergence is greatly reduced every other year, even if the emergence of seedlings is easy to wither. Cabbage seeds can be stored for 2 years. Seeds harvested that year can be planted in the same year, but the validity period exceeds 2 years, and the emergence rate is generally reduced by 20%-27%, and the disease resistance becomes lower. China Agricultural Network Editor
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