中国农业科学(英文版)2003，Vol.2Issue(11)：1277-1284,8.
A Process-Based Model for Simulating Phasic Development and Phenology in Rice
A Process-Based Model for Simulating Phasic Development and Phenology in Rice
摘要
Abstract
A simulation model for phasic and phenological development of rice was developed using the scale of physiological development time, based on the ecophysiological development processes. The interaction of daily thermal effectiveness, photoperiod effectiveness and intrinsic earliness (before heading), and basic filling duration factor (after heading) determined the daily physiological effectiveness, which accumulated to get physiological development time. The Beta and quadratic functions were used to describe daily thermal and photoperiod effectiveness, respectively. Five specific genetic parameters were added to adjust the genotypic differences in rice development so that all different varieties could reach the same physiological development time at a given development stage. The stages of seedling emergence, panicle initiation, heading, and maturity were validated using sowing dates under different ecological environments, with the RMSE of 1.47, 5.10,4.58 and 3.37 days, respectively. The results showed that the model was not only explanatory and systematic but also accurate and applicable.关键词
Rice/Phasic development/Phenology/Physiological development time/Simulation model/PredictionKey words
Rice/Phasic development/Phenology/Physiological development time/Simulation model/Prediction分类
农业科技引用本文复制引用
MENG Ya-li,CAO Wei-xing,ZHOU Zhi-guo,LIU Xin-wei..A Process-Based Model for Simulating Phasic Development and Phenology in Rice[J].中国农业科学(英文版),2003,2(11):1277-1284,8.基金项目
This work was supported by the National Natural Science Foundation of China(30030090), and the National 863 Program, China(2001AA245041). （30030090）
