关键词: 大蒜, 可溶性总糖, 积累特性, 分配特性

Abstract: To explore the dynamic accumulation and distribution of the total soluble sugar content in bulbs，stems，leaves， sprouts and other organs of garlic during infancy to maturing in QinghaiTibet Plateau， Ledu garlic，Xinjiang garlic，Henan garlic and Hebei garlic were used as the materials. The result showed that the content，accumulation and allocation proportion of soluble sugar in bulb were the highest when harvested in the whole growth period for four varieties of garlic，and the soluble sugar content in bulb was significantly higher than that in root，stem， leaf and other organs；in the whole growth period，the changes of soluble sugar content in bulb of Ledu garlic，Xinjiang garlic showed a “W” shape，and those in Henan garlic and Hebei garlic showed a “V” shape. The result indicated that the change trend of soluble sugar contents in root and stem of Ledu garlic decreased firstly and increased at last in the early growth stage; however，the variation tendency of the soluble sugar content，accumulation and distribution ratio in root，stem，leaf of Xinjiang garlic，Henan garlic and Hebei garlic all showed “M” shape，and the values were different depending on varieties. In the same period，the soluble sugar content and distribution of four varieties of garlic in the early stages showed as bulb> stem>leaf> root，and in later growth stage showed as bulb> false stem > root > leaf，and the trend of Ledu garlic and Xinjiang garlic were different because of its bolting characteristic during 48-60 d after budding．

Key words: garlic, soluble sugar, accumulation characteristics, distribution characteristics