辣椒叶面积指数与干物质生产模拟

Simulation on Leaf Area and Dry Matter Production of Chilli Pepper

【目的】研究辣椒叶面积增长与环境因子之间的关系及建立辣椒干物质生产模型,为辣椒数字化栽培管理提供理论依据。【方法】根据试验资料构建基于生理发育时间的辣椒叶面积模型,并将该模型与干物质生产模型相结合,构建辣椒干物质生产动态模拟模型。【结果】利用完全独立的试验数据对模型进行检验,辣椒叶面积模型的RMSE值在10%～20%,干物质生产模型的RMSE值在20%～30%。【结论】叶面积模型模拟效果较好,干物质生产模型模拟效果一般,有待进一步的改进和完善。

【Objective】The study aimed to find out the relationship between the increase on leaf area of chilli pepper and environment factors,and to construct a dry matter production model of chilli pepper,also to provide a theoretical basis for digital cultivation management of chilli pepper.【Method】A mathematical simulation model for leaf area of chilli pepper was established basing on physiological development time(PDT)according to the experimental data.Then a dynamic model on dry matter production of chilli pepper was constructed by integrating this leaf area simulation model and a dry matter production model driven by photosynthesis.【Result】The model was validated by independent experimental data.The results showed that the RMSE values of leaf area model were between 10%-20%,the RMSE values of dry matter production model were between 20%-30%.【Conclusion】The simulation result of leaf area model was better,the dry matter production model has a common simulation result,and need further improvement and perfection.