基于悬臂梁的超级玉米叶片伸展特征模拟  

Simulation of leaf extending character in super-maize based on cantilever beam

作　　者：陈国庆[1] 刘伟[1] 张吉旺[1] 刘鹏[1] 董树亭[1] 王洪梅 

机构地区：[1]山东农业大学农学院,作物生物学国家重点实验室,泰安271018 [2]泰安市宁阳县华丰镇农业技术推广站,泰安271400

出　　处：《农业工程学报》2010年第6期193-198,共6页Transactions of the Chinese Society of Agricultural Engineering

基　　金：国家“十一五”科技支持计划(2007BAD31B04);国家“973”计划项目(2009CB118602);公益性行业(农业)科研专项(200903003);泰安市科技发展计划(20083048);国家自然科学基金项目(30900876)

摘　　要：为量化超级玉米叶片伸展特性,为超级玉米形态建成模拟模型的研究提供方法支持。该文将悬臂梁原理应用于超级玉米叶片伸展特性的模拟,将叶片分成多个基本单元,每个基本单元代表一个悬臂梁结构。通过坐标的变换,实现了超级玉米叶片从抽出到定长整个过程伸展特征的模拟。用不同密度下超级玉米叶片的实测数据对模型进行了检验。结果显示,不同位置叶片空间伸展坐标预测值RMSE均小于30%,80%以上预测D值大于0.7,表明模型对超级玉米叶片伸展特征有较好的模拟,将悬臂梁原理应用于超级玉米叶片伸展动态的模拟是可行的。The objective of this experiment is to quantify the leaf extending character and provide methodological support for morphogenesis simulation model in super-maize,which the cantilever beam theory was used.The same leaf was divided into many basic units,and each basic unit represented a cantilever beam.The simulation model of leaf extending in super-maize during the whole growth phase was developed.The observed data on super-maize leaf in different population were used to verify the model.The results show that RMSE of extending coordinate of different leaves were less than 30%,and the 80%predicted D value was greater than 0.7.So the model has a better simulation of the leaf extending character in super-maize and the method using the cantilever beam in simulation of super-maize leaf extending character is feasible.

关 键 词：悬臂梁 模型 特征识别 超级玉米 叶片伸展 

分 类 号：S513[农业科学—作物学] O242.1[理学—计算数学]