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中国农学通报

中国农学通报 ›› 2013, Vol. 29 ›› Issue (36): 215-218.doi: 10.11924/j.issn.1000-6850.2013-0080

所属专题： 小麦

• 农学 农业基础科学 • 上一篇    下一篇

Sunscan冠层分析仪在测量小麦叶面积指数中的应用

张姗姗 岳善超 崔振岭   

  • 收稿日期:2013-01-09 修回日期:2013-02-22 出版日期:2013-12-25 发布日期:2013-12-25
  • 基金资助:
    国家“973”项目“主要粮食作物高产栽培与资源高效利用的基础研究”第6子课题

Application of Sunscan canopy analysis system in measuring leaf area index of wheat

  • Received:2013-01-09 Revised:2013-02-22 Online:2013-12-25 Published:2013-12-25

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摘要： Sunscan冠层分析仪可以间接测量叶面积指数，具有简单快捷，对植物无损伤的特点。在大田情况下，本研究通过与传统手测叶面积进行比较，研究Sunscan冠层分析仪在小麦叶面积测定中的可行性。Sunscan冠层分析仪测定的叶面积指数与传统方法测定的叶面积指数有很好的相关性（r2=0.59-0.86）。在小麦生育后期，冠层枯黄叶片影响Sunscan冠层分析仪测定数据，导致测定结果偏大，抬高底端的测量位置可以减小枯黄叶片对测量的影响。

关键词: 盐敏指数, 盐敏指数

Abstract: Sunscan canopy analysis system is an important instrument for indirectly measuring leaf area index (LAI), wcich is simple ,fast and without damage to the plants. The objective of this study is to evaluate the feasibility of the Sunscan canopy analysis system measuring LAI (Sunscan-LAI) in the field, comparing to the conventional destructive-LAI by hand. There is a good relationship between the Sunscan-LAI and the destructive-LAI(r2=0.59-0.86). In the later season raise the measurement location of the probe can reduce the influence of the yellow leaves because the yellow leaves in the bottom layer may intercept the radiation and make the value of Sunscan-LAI increased.