论文部分内容阅读
一、农家品种保存的重要性自本世纪六十年代迅速推广高产矮秆水稻品种以来,极大地缩小了大面积种植水稻的遗传基础,尤其是近代育种发展的趋势,同种作物中大多数用了来源相同的一些基因资源,导致育成品种的遗传基础贫乏。大规模推广一些遗传上有关联的品
The Importance of Preserving Farm Varieties Since the rapid popularization of high-yielding dwarf rice varieties in the 1960s, the genetic basis of large-area rice cultivation has been greatly reduced, especially the development of modern breeding. Most of the same crops Some of the same source of genetic resources, resulting in poor genetic basis of breeding varieties. Promote some genetically related products on a large scale