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中国农学通报

中国农学通报 ›› 2009, Vol. 25 ›› Issue (15): 0-.

所属专题： 园艺； 农业生态

• 植物保护 农药 •    下一篇

甜菜M14品系褐斑病抗性的初步研究

胡敏   

  • 收稿日期:2009-04-21 修回日期:2009-05-18 出版日期:2009-08-05 发布日期:2009-08-05

Preliminary study on cercospora leaf spot of Resistant Sugarbeet to Cercospora beticola Sacc.

  • Received:2009-04-21 Revised:2009-05-18 Online:2009-08-05 Published:2009-08-05

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摘要： 甜菜M14品系由于附加了一条野生白花甜菜第9号染色体，因此，研究其是否具有抗病性以及抗病程度的强弱具有十分重要的意义。通过用褐斑病原真菌感染甜菜M14品系与栽培甜菜，对比接种后叶片各种酶活性差异，并且对相关植株叶片氨基酸含量进行分析。结果表明：甜菜M14品系植株在感染褐斑病原真菌后所研究的几种酶活性都高于作为对照的栽培甜菜植株；并且甜菜M14品系植株感病后总氨基酸含量下降，而栽培甜菜感病后总氨基酸含量上升。因此，甜菜M14品系具有中度抗褐斑病的特征，更加具有研究价值。

关键词: 偏高秆偏大穗杂交粳稻, 偏高秆偏大穗杂交粳稻, 抗倒伏能力, 茎秆物理性状

Abstract: It is of great important to study the cercospora leaf spot resistance of sugar beet M14 which has No. 9 chromosome of Beta corolliflora Zoss in addition. After spraying with the Cercospora beticola Sacc. conidia suspension, enzyme activities in leaves of suger beet M14 and Beta vulgaris L. were experimented, then the amino acid contents in leaves were also analyzed .The results showed that all of the enzyme activities detected in leaves of sugar beet M14 were higher than those in Beta vulgaris L., and the total content of amino acid in suger beet M14 decreased quickly after infected, while it increased in Beta vulgaris L..Therefore, we can conclude that it is valuable to study sugar beet M14, which has moderate resistance to cercospora leaf spot.