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目前,世界各国都非常关注良种在农业生产上的作用,特别是发达国家更加重视良种的培育和推广,从而大大地加快了农业现代化的进程。研究、探讨如何充分发挥良种在农业生产中的作用,以适应农业现代化的要求,是当前十分迫切需要解决的问题。 一、良种的基本概念 从生物进化的角度而言,种子在植物学上,是指高等植物由胚珠发育而成的繁殖器
At present, all countries in the world are very concerned about the role of seed production in agricultural production. In particular, the developed countries pay more attention to the cultivation and promotion of improved varieties, which has greatly accelerated the process of agricultural modernization. Studying and discussing how to give full play to the role of elite seeds in agricultural production to meet the requirements of agricultural modernization is a very urgent issue that needs to be resolved at present. First, the basic concept of seed from the perspective of biological evolution, the seeds in botany, refers to the higher plants from the ovule development of the reproductive device