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农学学报

农学学报 ›› 2014, Vol. 4 ›› Issue (5): 70-73.

所属专题： 园艺

• 农业工程 农业机械 生物技术 食品科学 • 上一篇    下一篇

叶用莴苣富硒效果影响的研究

许晓宁 韩莹琰 范双喜 郝敬虹 郭婉香 韩亚文   

  • 收稿日期:2014-02-19 修回日期:2014-03-16 出版日期:2014-05-20 发布日期:2014-05-20

Research on the Effect of Leaf Lettuce Se Influence

  • Received:2014-02-19 Revised:2014-03-16 Online:2014-05-20 Published:2014-05-20

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摘要： 对‘射手101’、‘大像生一号’、‘美国大速生’3种叶用莴苣的富硒效果进行比较。分别采用叶面喷施浓度梯度为7.5、15.0、22.5 g/hm2的硒酸钠与亚硒酸钠溶液，进行1次或2次叶面喷施，利用原子荧光光谱仪标准曲线法测量硒含量。结果显示：不同浓度的2种硒源均可以提高3种叶用莴苣含硒量。其中，浓度为22.5 g/hm2的亚硒酸钠富硒效果最好。喷施1次，‘射手101’效果最佳，含硒量为(11.33±1.52753) μg/100 g。喷施2次，‘大像生一号’效果最佳，含硒量为(14.33±0.5774) μg/100 g，约为喷施1次时含硒量(4.87±0.3215) μg/100 g的3倍。

关键词: 克氏原螯虾, 克氏原螯虾, 白斑综合征病毒, 感染

Abstract: In this study, the effects of selenium enrichment on three kinds of leaf lettuce were compared. To observe the selenium-enriched influence on ‘Sheshou101’, ‘Daxiangshengyihao’, ‘Meiguodasusheng’, the content of selenium was measured by atom fluorescence spectrometer standard curve after the leaf lettuce was sprayed sodium selenate and selenite once or twice respectively with a series of gradient concentrations of 7.5, 15.0, 22.5 g/hm2. The results showed that 2 kinds of selenium source with different concentrations all can increase selenium content of 3 kinds of leaf lettuce. Of all the concentrations of both selenium sources, 22.5 g/hm2 of sodium selenite led to the best selenium-enriched effect. In once-spaying test, (11.33±1.5275) μg/100 g selenium content on ‘Sheshou101’ resulted in the best selenium-enriched effect, while (14.33±0.5774) μg/100 g on ‘Daxiangshengyihao’ contribute to the best in twice-spraying test, 3 times higher than (4.87±0.3215) μg/100 g after spraying once.