在植物学上,种子是指由胚珠发育而成的繁殖器官.胚珠裸露,外面无子房包被的,称为裸子植物,如杉、松等;胚珠在子房内,为子房所包被的,称为被子植物,如桃、李等。从农业生产的角度来看,种子的涵义比较广泛,概括地说,凡在农业生产上可利用作为播种材料的任何器官或其营养体的一部分,只要能作为繁殖后代用的,都被称为种子。 In botany, the seed refers to the reproductive organs from the development of ovules. Ovule naked, outside without ovary coating, known as gymnosperms, such as cedar, pine and so on; ovules in the ovary, as the ovary Be called, angiosperms, such as peach, plum and so on. In terms of agricultural production, the meaning of seeds is relatively broad. In a nutshell, any organ or part of its nutrition that is available as sown material in agricultural production, as long as it can be used as a breeding agent, is called seed.