用辐热积法模拟温室黄瓜叶面积、光合速率与干物质产量

Simulation of leaf area, photosynthetic rate and dry matter production in greenhouse cucumber based on product of thermal effectiveness and photosynthetically active radiation

摘要: 依据温室黄瓜叶片生长与温度和辐射的关系，用辐热积构建了两种不同整枝方式下的叶面积模拟模型，并与已有的光合速率和干物质生产模型相结合，建立了适合中国种植技术的温室黄瓜光合速率与干物质生产模拟模型，并利用不同品种、基质的试验资料对模型进行了检验。结果表明，本模型比积温法和比叶面积法能更准确地预测温室黄瓜的叶面积和总干重，为温室作物生长模拟提供了新思路。

Abstract: A greenhouse cucumber leaf area simulation model under two types of pruning mode was developed based on the accumulated product of thermal effectiveness and photosynthetically active radiation (TEP). Then a process based on greenhouse cucumber photosynthesis and dry matter production simulation model was developed by integrating the greenhouse cucumber leaf area simulation model. Experimental data of different varieties and substrates were used to validate the model. The results showed that using TEP can predict leaf area and total dry weight of greenhouse cucumber more accurately than the traditional growing degree days (GDD) based and specific leaf area (SLA) based model. This study supplies a new method for growth simulation of greenhouse crop.