摘要： 采用比较研究法，对空心块茎与健康块茎解剖结构及营养特点的研究结果表明，无论是空心块茎还是健康块茎都是环髓区细胞大于心髓区细胞，空心块茎的细胞比健康块茎的细胞大；空心块茎环髓区细胞壁厚度比健康块茎的厚，而心髓区细胞壁厚度则比健康块茎的薄；空心块茎的淀粉、蛋白质、氮、磷、钾、镁，特别是钾、镁的含量显著低于健康块茎，但可溶性糖和还原糖含量却高于健康块茎。

关键词: 马铃薯, 空心块茎, 结构, 营养

Abstract: A comparison study about anatomical and nutritional characteristics of potato between hollow center and normal one was carried out. The result showed that the cells of outer pith were bigger than that of inner pith for all kind of potato. But outer pith cell of hollow center potato was bigger than that of normal one, and the cell wall was thicker. But the wall of pith cell was thiner than that of normal one. The content of starch,protein, N, P, K and Mg in hollow center potato was lower than that of normal one,and the difference of K and Mg content was significant and the content of soluble sugar and reducing sugar in hollow center tuber was higher than that in normal one.

Key words: Potato, Hollow center, Anatomy, Nutrition

中图分类号: 

• S532.01