甜菜是我国北方主要糖料作物,也是饲料作物。多倍体甜菜具有单位面积块根产量高,块根含糖量高,含有害气少,含无机盐少,不木质化,单位面积茎叶产量高等优点。我们从1974年起先后引进四倍体甜菜11份,二倍体甜菜43份,作为育种材料。经过 Beets are the main sugar crops in northern China, but also feed crops. Polyploid beet has the advantages of high unit root yield, high root tuber sugar content, less harmful gas, less inorganic salt, no lignification and high yield of stems and leaves per unit area. Since 1974, we have successively introduced 11 tetraploid beets and 43 diploid beets as breeding material. after