Onion seed, amaranth seed: must use new seeds of the year, the seedling rate of the next year is greatly reduced. The method of identifying old and new seeds is: the new seeds have wrinkles on the surface, the dark side is bright and shiny, and there is a clear white spot on the navel. For seeds stored for more than 1 year, the surface is dull, a layer of “white frost†appears, and the umbilicus turn from white to yellow. This seed has a low germination rate and growth potential and should not be used. Tomato seeds: generally can save 3-4 years, not more than 4 years, otherwise it will reduce the germination rate. The method of identifying the old and new seeds is: There are many small hairs on the new seeds, and there is a tomato flavor, the old seeds have less hair or fall off, and the odor also fades. Pepper seeds: no more than 3 years. The new seeds are spicy and the seed color is golden yellow. The germination rate of new seeds is about 90%, and the germination rate is about 80% after 2 years of storage. The germination rate will fall below 50% in 3 years. Celery seed: It can be stored for 5 years. The new seeds that are end of the year cannot be used. It must be kept for 1 year. Caraway seeds: Must be stored for 1 year before use, but storage time should not exceed 3 years. The new cilantro is rich in odor and fades out of old seeds. Eggplant seeds: The storage time can be slightly longer, generally the seed can be used within 5 years. The new seeds have bright, creamy yellow skin, while Chen seeds have a dark red surface and no light. Cabbage, radish, and cabbage seed: The general storage life is 3-4 years, and the germination rate is significantly reduced over 4 years. The surface of the new seed is smooth, and the surface of the Chen seed is dark. After the seeds are crushed with the nail, the new seeds are not broken into the cake, the seeds are fragile and the seed coat is easy to fall off. Cucumber seeds: generally can survive 3-4 years. The surface of fresh cucumber seeds is white or milky, and the surface is smooth. The burr at the tip of the seed is more pointed, but the yellow spots on the surface of the Chen seeds are lost, and the burrs at the tip of the seeds are dull. "Rural Pepsi Communication"
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