| 基于SPAD值的木薯叶绿素含量预测模型 |
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| 引用本文： | 杨生红,杨重法,辛 阳,刘传军,陈慧娟.基于SPAD值的木薯叶绿素含量预测模型[J].热带作物学报,2012,33(3):509-511. |
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| 作者姓名： | 杨生红 杨重法 辛 阳 刘传军 陈慧娟 |
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| 作者单位： | 海南大学农学院,海南海口,570228 |
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| 基金项目： | 海南省重点学科建设项目“木薯干物质生产与分配的生理生态研究”（No. Xkxm0811-09）。 |
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| 摘 要： | 为了探讨木薯叶绿素含量的非破坏性快速测定方法，在测量叶片SPAD值、比叶面积和叶绿素含量的基础上构建通过SPAD值预测总叶绿素含量的数学模型。结果表明，叶绿素a对于SPAD值的贡献率大于叶绿素b；比叶面积和叶位显著影响SPAD值与总叶绿素含量的关系，在SPAD值预测总叶绿素含量的模型中导入比叶面积和叶位2个自变量可提高预测总叶绿素含量的精度；基于SPAD值、比叶面积、叶位预测总叶绿素含量的模型为C=-4.51+0.092 5 Spv+0.039 9 Sa+0.145 0（Lp）。
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| 关 键 词： | 木薯 叶绿素含量 SPAD值 比叶面积 叶位 模型 |
A Model for Predicting Chlorophyll Content in Cassava Based on SPAD Values |
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| YANG Shenghong,YANG Zhongf,XIN Yang,LIU Chuanjun and CHEN Huijuan.A Model for Predicting Chlorophyll Content in Cassava Based on SPAD Values[J].Chinese Journal of Tropical Crops,2012,33(3):509-511. |
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| Authors: | YANG Shenghong YANG Zhongf XIN Yang LIU Chuanjun and CHEN Huijuan |
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| Institution: | College of Agriculture, Hainan University;College of Agriculture, Hainan University;College of Agriculture, Hainan University;College of Agriculture, Hainan University;College of Agriculture, Hainan University |
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| Abstract: | In order to investigate a non-destructive and quick measuring method for chlorophyll content in cassava,a model for predicting total chlorophyll content that was based on SPAD values,specific leaf area,chlorophyll content was established.The results indicated that the influence of chlorophyll A to SPAD values was larger than chlorophyll B;specific leaf area and leaf position and SPAD values and chlorophyll content showed significant correlation;added specific leaf area and leaf position,the accuracy of the model for predicting total chlorophyll content was improved;based on SPAD values,specific leaf area and leaf position,the model for predicting total chlorophyll content was established as C=-4.51+0.092 5 Sp+0.039 9 Sa+0.145 0(Lp). |
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| Keywords: | Cassava Chlorophyll Content SPAD value SAL Leaf position Model |
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