农作物育种的新概念和特点国外近年作物育种对农业生产作出了巨大的贡献,引起各国普遍的重视,特别在科学技术高速度发展的今天,由于细胞遗传学,生理遗传学,生化遗传学发展起来的基因工程学,已展示人们能动地改变或控制作物遗传变异美好的前景.针对目前农药、化肥、除莠剂的使 New Concept and Characteristics of Crop Breeding In recent years, crop breeding has made great contribution to agricultural production and aroused widespread attention in various countries. Especially in the high-speed development of science and technology, due to the development of cytogenetics, physiological genetics and biochemical genetics Genetic engineering has shown that people can change or control crop genetic variation beautiful prospects.Aim at the current pesticides, fertilizers, herbicides