玉米种子按其生物学特性,有很多地方不同于其他谷类作物,在储藏期和播前处理上,要求仔细的照料。玉米子粒的特点是具有占子粒全部干物质10—14%的较大的胚,而小麦、黑麦和大麦等的胚只为种子重量的1.5—3%。胚位于种子的下部,以内子业将其和胚乳分开,表面为种皮、果皮以及细的木质纤维薄膜覆盖着。因木质纤维薄膜系海绵状构 Depending on their biological characteristics, maize seeds differ from other cereal crops in many areas and require careful care during storage and pre-sowing. Maize grains are characterized by larger embryos having 10-14% of the total dry matter of the grain, while embryos such as wheat, rye and barley are only 1.5-3% of the seed weight. The embryo is located in the lower part of the seed, separated from the endosperm by the subgenus, and covered with a seed coat, a peel and a thin lignocellulosic film. Because of wood fiber film sponge-like structure