摘要
建立了番茄动态生长的功能模型,从个体和器官的角度,研究生物量在植物体内的生产和分配规律、器官的动态生长规则。模型根据蒸腾作用计算物质的生产;根据节间、叶柄、叶片和果实等器官的汇强和扩展规律对物质进行分配;根据与物质量的动态关系计算各器官的几何尺寸;利用试验数据对模型参数进行估计。通过对参数进行比较和分析得出它们对各器官生长的影响程度和器官本身的扩展规律。并对模型输出与测量数据的拟合程度进行了残差分析,验证了模型的合理性和有效性。
Matter production and allocation laws inside tomato plant and the organs＇ dynamic growth rules were discussed to individual plant and organ level. In the model, matter production is computed with the transpiration of the leaves at each cycle. Biomass is allocated to organs, such as inter-node, petiole, blade, and fruit according to their sink strength and expansion laws. The geometric size of organs, as a function of their volume, is derived step by step. The parameters involved in the model are estimated according to the experimental data. By the comparison and analysis among those parameters, certain rules are attained on how and what degree they affect the growth of different organs. Furthermore, the residual analysis was made to test the model outputs. The results verify that this model is acceptable and valid.
出处
《中国生态农业学报》
CAS
CSCD
2007年第1期122-126,共5页
Chinese Journal of Eco-Agriculture
基金
国家高技术研究(863)发展计划项目(2002AA241221)
国家自然科学基金项目(60073007)
中法合作项目"SOILEIL"(太阳计划)资助
关键词
番茄
器官
结构-功能模型
生产和分配
扩展规律
Tomato, Organs, Structural- functional model, Matter production and allocation, Expansion law
