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对9个甘薯品种在不同生长期块根可溶性糖含量的测定与分析表明:甘薯块根可溶性糖含量在整个生长期间的变化总趋势是生长前期(50 d左右)特别高,随后迅速降低,一般在100 d左右达到最低.生长中期稳定波动,生长末期再有缓慢上升.各生长期可溶性糖含量之间存在显著或极显著相关性.该研究结果为甘薯育种和产业化开发提供了一定的科学依据.
The determination and analysis of soluble sugar content in root tuber of nine sweet potato cultivars at different growth stages showed that total soluble sugar content in sweet potato tuber root during the whole growth period was generally high at the early growth stage (about 50 d), then decreased rapidly, generally at 100 d.The content of soluble sugar in each growth period had a significant or extremely significant correlation.The results of this study provide some scientific basis for the breeding and industrialization of sweet potato.