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山东省甘薯品种演变与发展趋向王大箴，郗光辉，王庆美，王荫墀（山东省农科院作物研究所２５０１００）山东省是我国甘薯生产大省之一，栽培面积仅次于四川省，居全国第二位。建国以来，种植面积虽有变化，而单产和总产均呈上升趋势。据统计，建国初期，平均单产（折粮）...
Evolution and Development Trend of Sweet Potato Varieties in Shandong Province WANG Da-zhen, XIANG Guang-hui, WANG Qing-mei, WANG Yin-zhou (Institute of Crops, Shandong Academy of Agricultural Sciences, 250100) Shandong Province is one of the major sweet potato producers in China with the second largest cultivated area in Sichuan Province Bit. Since the founding of the People’s Republic of China, although the area under cultivation has changed, yields and total output have been on the rise. According to statistics, the early years of the founding of the Republic, the average yield (grain) ...