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中国农学通报

中国农学通报 ›› 2012, Vol. 28 ›› Issue (22): 151-157.doi: 10.11924/j.issn.1000-6850.2012-0571

所属专题： 园艺

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Ca2+对淹水胁迫下辣椒幼苗生长和碳水化合物含量的影响

张恩让 任媛媛 李晓慧   

  • 收稿日期:2012-02-25 修回日期:2012-05-03 出版日期:2012-08-05 发布日期:2012-08-05
  • 基金资助:

    国家科技支撑计划项目（2008BADB5B03）；贵州省科技攻关项目（黔科合NZ字{2005}3010-Z3）；贵州省科学技术基金项目（黔科合J字[2008]2067号）

Effect of Ca2+ on Growth and carbohydrate contents of Pepper Seedlings Under Root-zone Flood Stress

  • Received:2012-02-25 Revised:2012-05-03 Online:2012-08-05 Published:2012-08-05

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摘要：

为了研究辣椒幼苗(Capsicum frutescent L.)在淹水胁迫环境下，Ca2+对其幼苗生长及碳水化合物的影响，以花溪党武辣椒为试材，通过Ca2+浸种处理，研究不同时间（0、3、6、9、12天）根际淹水胁迫下Ca2+对辣椒幼苗生长和碳水化合物含量的影响，研究结果表明：干鲜重在胁迫达到第12天时，除地上部干重外，淹水加钙处理与纯淹水处理均达极显著水平。碳水化合物方面，在变化规律达峰值时，蔗糖、果糖含量在根、茎、叶中均表现为Fl+Ca>Fl>CK；可溶性糖含量在根、茎、叶中表现为Fl>Fl+Ca>CK；葡萄糖和淀粉含量在茎、叶中表现为：Fl+Ca>Fl>CK，根中则为CK>Fl>Fl+Ca。Ca2+对淹水胁迫下辣椒幼苗的生长及碳水化合物含量产生很大的影响，本研究结果对淹水胁迫的继续研究及应对措施提供理论支持。

关键词: PCR-SSCP, PCR-SSCP

Abstract:

In order to studied the effect that Ca2+ to the growth of Pepper seedling (Capsicum frutescent L.) and carbohydrates content under different time (0 day, 3 days, 6 days, 9 days and 12 days) with the root flooded stress, we used Huaxi Dangwu pepper as the material by Ca2+ soaking treatment. The results showed that, flooding add Ca2+ and flooding achieved significant level except aboveground department dry weight on 12 days. In carbohydrates aspects, the content of sucrose and fructose were Fl+Ca > Fl > CK in roots, stem and leaves, the content of soluble sugar was Fl > Fl+Ca > CK in roots, stem and leaves, the content of glucose and starch were Fl+Ca > Fl > CK in stem and leaves, CK > Fl > Fl+Ca in roots. Influence of Ca2+ on impact the growth of pepper seedling and carbohydrates under water flooding, the results obtained might give some guidance for studying and countermeasures of flooding stress.

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