一、作物育种工作概况与成效 建国以来,我省作物育种工作经历了几个不同的发展阶段。五十年代在批判孟德尔摩尔根遗传学、批判“重育种、轻栽培”的情况下,新品种选育工作基本上没有开展,品种工作局限于整理利用旧品种和进行引种鉴定。农村实现合作化之后,由于水利建设的发展,施肥水平和复种指数的逐步提高,对品种耐肥抗倒的要求和对越冬作物早熟丰产的要求日益突出,为了适应这两方面的需 First, overview and effectiveness of crop breeding work Since the founding of our country, crop breeding in our province has gone through several stages of development. In the 1950s, when criticizing Mendelian Genetics and criticizing “re-breeding and light-cultivation”, the selection and breeding of new varieties were basically not carried out. The work of varieties was limited to the sorting and utilization of old varieties and the introduction and identification. After the rural area realizes the cooperation, due to the development of water conservancy construction, the level of fertilization and the gradual increase of the multiple cropping index, the requirements for the varieties to resist diseases and to resist the lodging and the requirements for the precocious and high-yielding winter crops become increasingly prominent. In order to meet these needs