| 烟草根系形态发育模拟模型 |
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| 引用本文： | 马新明,杨娟,熊淑萍,席磊,虎晓红.烟草根系形态发育模拟模型[J].中国农业科学,2005,38(12):2421-2427. |
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| 作者姓名： | 马新明 杨娟 熊淑萍 席磊 虎晓红 |
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| 作者单位： | 1. 河南农业大学信息与管理科学学院,郑州,450002
2. 河南农业大学农学院,郑州450002 |
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| 基金项目： | 国家烟草专卖局重大招标项目（110200201005）和河南省高校科研人才创新工程项目（2002KICX05）资助 |
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| 摘 要： | 在分析烟草根系生长发育规律的基础上,采用作物模拟技术,定量地描述了根系生长与环境之间的动态关系,建立了烟草根系形态发育的数学模型。根据 "根箱法"测定的资料,确定了根系模型的相关参数;通过运行模型,以较少的参数实现了烟草根系数量、长度、根长指数和根长密度等指标的输出,为根系的研究提供了新的手段。利用2003年的试验资料对模型进行检验,结果表明,烟草根系一级、二级侧根根长及其数量、根长密度和根长指数等的模拟值与实测值均呈显著正相关,相关系数分别达0.9540～0.9896,表明模型对烟草根系形态发育动态具有较好的预测效果。
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| 关 键 词： | 烟草 根系 模拟模型 形态发育 |
| 收稿时间： | 11 19 2004 12:00AM |
| 修稿时间： | 2004-11-19 |
A Model for Simulating Root Morphological Development of Tobacco |
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| MA Xin-ming,YANG Juan,XIONG Shu-ping,XI Lei,HU Xiao-hong.A Model for Simulating Root Morphological Development of Tobacco[J].Scientia Agricultura Sinica,2005,38(12):2421-2427. |
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| Authors: | MA Xin-ming YANG Juan XIONG Shu-ping XI Lei HU Xiao-hong |
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| Institution: | 1.College of information and administration of Henan Agricultural University, Zhengzhou 450002; 2.Agronomy College of Henan Agricultural University, Zhengzhou 450002; 3.College of Resources and Environments, East China Normal University, Shanghai 200062 |
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| Abstract: | Based on the analysis of the rule of tobacco root growth and development, a tobacco root model was built by crop simulation techniques, which could be used to describe quantitatively the dynamic relationships between root growth and development of tobacco and environments. Then parameters of the models were determined using the measured data taken from the "root box" experiments held at the Henan Agricultural University. After running the root models, parameters, such as the root number, root length, index of root length and density of root length etc. could be obtained, which would provide a new tool in future studies revolving crop roots. Finally, the tobacco root models were tested using the experimental data in 2003,and the results show that there are significant relationships between the simulated and measured data with correlation coefficients between 0.9540-0.9896 for root number, root length of the first and second order, root length density and root length index etc. The results mentioned above indicate that the model behaves well to predict tobacco root morphological development. |
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| Keywords: | Tobacco (Nicotiana tabacum Linn ) Root Simulation model Morphological development |
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