基于生理发育时间的日光温室番茄发育模拟模型  

A Simulation Model for Tomato Plant Growth and Development in Solar Greenhouse Based on Physiological Development Time

作　　者：张培新[1] 贺超兴[1] 张志斌[1] 张百海[2] 

机构地区：[1]中国农业科学院蔬菜花卉研究所 [2]北京理工大学

出　　处：《中国农业气象》2006年第4期314-317,322,共5页Chinese Journal of Agrometeorology

基　　金：国家自然科学基金重大国际合作项目"面向农林学应用的三维植物生长建模与可视化研究"(60520150264)

摘　　要：掌握温室番茄生育期是温室番茄专家决策系统中进行生产安排和市场销售的重要内容,本研究将温度对番茄发育速率影响效应的大小用相对热效应(RTE)来衡量,通过研究Beta函数的性质提出基于幂函数的模型来描述RTE与温度之间的关系。每日相对热效应(RTE)决定每日生理发育效应(PDE)的大小,其累积形成每日的生理发育时间。采用生理发育时间(Physiological Development Time,PDT)作为定量发育进程的尺度,建立了温室番茄发育模拟模型。利用模型对日光温室2年4茬番茄生长发育期资料进行检验的结果表明:模型能较好地预测各个发育期(发芽、苗期、开花座果、结果和采收期)的出现时间和持续时间,各生育期模拟值与观测值的回归估计标准误差(RMSE)分别为1.32d,1.73d,0.35d,1.58d,2.52d,显著优于以有效积温模拟模型的预测精度(其生育期模拟的RMSE分别为2.55d,9.74d,2.06d,9.27d,11.99d)。The daily relative thermal effectiveness （RTE） was taken as an indicator to assess the impact of temperature on the development rate of tomato. The model based on the exponential function was established to describe the relationship of the RTE to temperature, through studying the characters of Beta function. RTE determined the daily physiological development effectiveness （PDE）, which accumulated to be daily physiological development time （PDT）. Based on the PDT, the simulation model for tomato growth and development in the green house was established and validated by the experiments in the greenhouse from 2003 to 2005. The results showed that the model could predict the time and duration of the different growing period, such as germination, seedling, flowering and fruit setting, fruit ripening and harvest. The standard error by regression analysis （RMSE） between simulated and observed values was 1.32, 1.73, 0. 35, 1.58 and 2. 52 days for the germination, seedling, flowering and fruit setting, fruit ripening and harvest period respectively. The prediction accuracy by this model was higher than by simulation model based on efficiency accumulate temperature （EAT）, by which the RMSE was 2. 55, 9.74, 2. 06, 9.72 and 11.99 days for the germination, seedling, flowering and fruit setting, fruit ripening and harvest period respectively.

关 键 词：温室 番茄 生理发育时间 生长发育期 模拟模型 

分 类 号：S641.2[农业科学—蔬菜学]