It is a simple and easy method to determine the seed's viability based on the seed, the appearance of the embryo and the anatomical seeds and seeds, or after the seed is treated simply, and has a high application value in the production practice. . The introduction is as follows.
1. When cotton cuts cottonseeds, the oil spots on the cut surface are greenish blue, the embryos are white, and the leaves are moist and plump, indicating that the seeds are intact; and the oil spots are dark brown, the radicles are yellow or brown, and the cotyledons are dry. It proves that the seeds have gone bad.
2. The wheat husks are fresh and shiny, full of embryos, and the embryonic cuts and radicles are pale yellow and oily and elastic when observed in anatomical embryos. They are viable seeds. All hull brown dull, embryonic parts shrink or brown, when the anatomical embryos were dark yellow or brown, dry and fragile, non-viable seeds.
3. Soybeans Soybean seeds are prone to go oily, and the vitality of the oil-depleted seeds is lost. The sign is that the seed coats become dull or appear greasy. The two leaves are dark yellow or brown in color, dull, and the edge of the bean is particularly noticeable. Gas on the seed coat with water vapor adhesion, and a smooth color; and normal seed coat yellow, shiny, 2 pieces of cotyledon fresh, bright yellow, after the gas kind of skin moisture is not attached, there is no characteristic smooth Color.
4. The good seeds of peanuts are generally full and full, with sharp embryonic tops, prominent buds, pink seed coats, white umbilicus at the top, easy separation from seeds by hand, and the loss of viability of peanut seeds. The seed coat turned yellowish-brown or dark red, and the umbilicus and cotyledons at the top appeared greasy. After 2 hours of soaking, the seed coat had immersed spots and the cotyledons were easy to separate.
5. Rapeseed rapeseeds were peeled and observed, and young shoots and young roots were greenish white, cotyledon greenish, yellowish-white, yellowish, and moist and elastic. They were viable seeds; young shoots and young roots. Brown, cotyledons brownish, crumpled, dead seeds.
6. Maize hybrids of the same variety, where the color is uniform, the embryo and endosperm are not rotten, there is no mechanical damage, that is a good seed. Some peasants mistakenly believe that black spots on the embryos are not germinating. This is an illusion. As long as corn embryos do not suffer from frostbite, even exposure of black is a good seed.
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