A Simple Method to Identify the Quality of Some Main Crops

Identify the quality of crop seeds (ie, whether there is viability), you can do the germination test, or use chemical reagents to soak in the dye determination. Although the results obtained by adopting these methods are relatively reliable, they require certain time and equipment and other conditions, and require stricter operation. However, it is a simple and easy way to determine the seed's viability based on the seed, the appearance of the embryo and the anatomical seeds and embryos, or after the simple treatment of the seeds, and has the same application value in the production practice. . The following describes the good and bad characteristics of several crop seeds. 1. Cotton cuts cottonseeds, where the oil spots on the cut surface are blue-green, the embryos are white, and the leaves are full and moist. This marks the seeds intact, and the oil spots are dark brown, and the radicles are yellow or brown. Has gone bad. 2. Several husks of wheat have fresh leeches and fullness of embryos. When anatomical embryos are observed, embryonic keratins and radicles are pale yellow, oily, elastic and viable seeds. Where the husk is dark and dull, the embryonic part shrinks or is brownish-brown. The radicles are dark yellow or brown when the embryo is dissected, and dry, fragile and friable seeds are not viable. 3. Soybean and soybean seeds are easy to go oil, and the vitality of the oil-depleted seeds is lost. The mark is that the seed coat becomes dark in color or appears greasy, and the two leaves are dark yellow or brown in color, dull, and the color of the edge of the bean is particularly obvious. Breathing on the seed coat with moisture adhesion and smooth color; normal seed coat with yellow, shiny, 2 cotyledons fresh, bright yellow, no moisture adhesion on the seed coat, no special smooth luster . 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. The seeds are easily separated from the seeds by hand rubbing; the surface of the peanut seed that loses vigor is falling, the seed coat Becomes yellow-brown or dark red, the top of the umbilical and cotyledons appear greasy, 2 hours after soaking seed coat with water-like spots, cotyledons easily separated. 5. Rapeseed rapeseeds were peeled and observed. The young shoots and young roots were greenish white, and the cotyledons were greenish, yellowish-white, yellow and moist, elastic and viable. The young shoots and young roots were brownish. The cotyledons are brownish and dry. The wrinkled seeds are already dead. 6. In the corn hybrids of the same maize variety, where the color is uniform, the embryos and endosperm are not moldy or rotten, and no mechanical damage is a good seed. Some farmers mistakenly believe that the black spots on the embryonic parts are non-germinating seeds. The illusion, as long as the maize embryonic parts do not freeze injury, even if exposed black is a good seed. China Agricultural Network Editor

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