温室甜瓜光合生产与干物质积累模拟模型研究  

Simulation model for photosynthesis and dry matter accumulation in greenhouse muskmelon

作　　者：施泽平[1] 郭世荣[1] 康云艳[1] 尹汉文[1] 高洁静[1] 徐刚[2] 张昌伟[2] 

机构地区：[1]南京农业大学园艺学院,江苏南京210095 [2]江苏省农业科学院园艺研究所,南京210014

出　　处：《果树学报》2006年第3期420-426,共7页Journal of Fruit Science

基　　金：国家高技术研究发展计划863项目(2004aa247010);江苏省科技攻关重大项目(BE2002304)。

摘　　要：在借鉴国内外温室蔬菜作物光合生产和干物质积累模拟模型的基础上,根据温室甜瓜的试验数据,确定有关模型参数,建立了温室甜瓜光合生产与干物质积累模拟模型,模型包括叶面积指数、光合生产及干物质积累动态模型。模型利用比叶面积法建立了叶面积指数动态模型,光合作用模型还引用简便有效的高斯积分法计算冠层每日的总同化量,不但考虑了光合有效辐射的日变化规律,而且考虑了太阳高度角的变化对冠层反射率的影响和温度对呼吸作用的影响。通过不同品种干物质积累动态模型检验表明,模型机理性、通用性和精度较好。According to experimental data, greenhouse muskmelon photosynthesis and dry matter dynamic accumulation models were analyzed by determining model parameters based on the greenhouse crop simulation models, which consisted of leaf area index dynamic formation, photosynthesis and dry matter accumulation formation sub-models. The leaf area index sub-model was developed by specific leaf area. The photosynthesis sub-model introduced Gaussian integration method for the total assimilation, considering not only photosynthetic active radiation daily course but also the influence of canopy reflectivity coefficient. The validation of model for dry matter accumulation with experiments of different genotypes indicated good fit between the simulated and observed data. Therefore, this model was of high accuracy, more mechanisms, and practicability.

关 键 词：温室甜瓜 光合作用 呼吸作用 干物质积累 模拟模型 

分 类 号：S652[农业科学—果树学]