不同生态条件下西瓜果实瓜氨酸含量比较研究

The difference of watermelon fruit citrulline content in different ecological condition

为了明确不同西瓜材料在不同生态条件下瓜氨酸含量的差异,用分光光度法分别测定了新疆和海南种植的15份相同西瓜材料果实瓜氨酸的含量,结果表明,15份西瓜材料在新疆地区瓜氨酸含量(鲜质量)范围为1.13~2.46 g·kg^(-1),海南地区瓜氨酸含量(鲜质量)范围为0.62~2.23 g·kg^(-1),两地瓜氨酸含量均较高的2份为‘White wonder’和‘9904’。和海南相比,新疆种植的西瓜果实有较高的瓜氨酸含量,西瓜材料、地区生态环境均能显著影响西瓜果实瓜氨酸含量,并且环境对不同西瓜材料瓜氨酸含量的影响程度存在差异。

In order to clarify the difference of the watermelon fruit citrulline content in different ecological conditions, we determined the citrulline content of 15 watermelon cultivars planted in Xinjiang and Hainan by UV-visible spectrophotometric method. The results showed that the citrulline content of 15 watermelon ranged from 1.13 g. kg-1 to 2.46 g.kg-1 in Xinjiang, and ranged from 0.62 g.kg-1 to 2.22 g.kg-1 in Hainan province. The citrulline content in Xinjiang were significantly higher than that in Hainan. Our results demonstrated that citrulline concent was affected by materials and environment, and the amount of environmental effect varies among materials. In this study, the materials with the high and stable citrulline concen- tration were‘White wonder＇ and ‘9904＇ which can be used as parent materials to develop cuhivars with high concentration of citrulline.