摘要： 对4个品种的胡萝卜（新黑田五寸人参，HERTAGE，XPH3910和TEBE）进行栽培和取样，研究其干物质积累和β-胡萝卜素含量的变化。结果显示，在胡萝卜生长过程中，随着地上部分同化器官的建成，其干物质积累不断增加，干/鲜比例呈上升趋势；β-胡萝卜素含量的变化不是均匀递增的，β-胡萝卜素大量形成期主要在莲座期以后的肉质根生长期，此间β-胡萝卜素的合成量占全生长期的75%以上；不同熟性的品种β-胡萝卜素快速形成期和达到最大含量所需的时间不一样，但各类型品种都在生理成熟期时达到β-胡萝卜素含量的最大值。

关键词: 胡萝卜, &beta, -胡萝卜素, 高效液相色谱法, 栽培

Abstract: β-carotene content and dry matter content in four varieties of carrots (Xinheitian,HERTAGE,XPH3910 and TEBE)during different stages were studied.The experiment suggested that with roots growing,the ratio (dry/fresh) kept on increasing as well as the dry matter content.And the increasing ratio of β-carotene was based on different stages.More than 75% β-carotene was synthesized during fleshy root growing after rosette stage.The result also showed that the period of rapid β-carotene growth and the time to reach maximum content were different for different varieties,but all varieties could reach the maximum β-carotene content at mature period.

Key words: Carrot (Daucus carotaL.), β-carotene, HPLC, Culture

中图分类号: 

• S631.201