夏谷亲本材料的创新研究籍贵苏（河北省农林科学院谷子研究所石家庄０５００３１）建国初期谷子育种主要是以农家种为基础材料进行系统选育，虽然选出了一批品种在生产上应用，产量也有了一定的改善，但病虫害及倒伏严重。６０年代末７０年代初“日本６０日”的引进并作为... Innovative Research of Summer Valley Parental Materials Ji Gui-Su (Shijiazhuang Institute of Hebei Academy of Agriculture and Forestry Sciences, Shijiazhuang 050031) In the early days of the founding of the PRC, millet breeding was mainly based on the selection of peasant species as the basic material. Although a batch of varieties were selected for their application in production, Yields have also been somewhat improved, but pests and diseases are lopsided. The late 60s and early 70s “Japan 60,” the introduction and as ...