Three-dimensional modelling of salt stress effects on the tomato canopy development

盐胁迫对番茄冠层发育影响的三维建模

• 批准号: 50745391
• 负责人: Professor Dr. Hartmut Stützel
• 金额: --
• 依托单位: Institut für Gartenbauliche Produktionssysteme
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2007
• 资助国家: 德国
• 起止时间: 2006-12-31 至 2010-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/50745391?language=en
• 关键词: Three; dimensional; modelling; salt; stress

Salt stress causes important morphological alterations on plants, with tremendous implications for light interception and crop productivity. It is therefore important to include morphological information in strategies aiming to overcome salinity-induced yield reduction. This is especially true for spatially heterogeneous crops such as tomato. The purpose of this project is to develop an integrated understanding of salinity-induced morphological alterations significant for the tomato productivity. Therefore we want to conceptualise an architectural model of the tomato growing under salt stress using Lsystem formalism. Plant development will be modelled as an integration of organ appearance, expansion, senescence as well as geometrical details such as 3-D organ positioning, orientation and shape. Each of these events will be modelled depending on salinity, temperature, vapour pressure deficit or light. The effects of these environmental factors on canopy development will be investigated in five experiments, four of which will be used for model parameterisation and one for model evaluation. The model will serve as a research tool in computer simulations in order to generate hypothetical statements describing the behaviour of the plant under different environmental scenarios and analyse possibilities for model simplification.

盐胁迫引起植物重要的形态改变，对光的截获和作物生产力具有巨大的影响。因此，重要的是，包括形态信息的战略，旨在克服盐诱导的产量下降。对于番茄等空间异质性作物尤其如此。本项目的目的是发展一个综合的理解，盐诱导的形态学变化的番茄生产力显着。因此，我们想概念化的番茄生长在盐胁迫下使用L系统形式主义的建筑模型。植物发育将被建模为器官外观，扩展，衰老以及几何细节（如3-D器官定位，方向和形状）的集成。这些事件中的每一个都将根据盐度、温度、蒸汽压差或光照进行建模。这些环境因素对冠层发育的影响将在五个实验中进行研究，其中四个将用于模型参数化，一个用于模型评估。该模型将作为计算机模拟的研究工具，以生成描述工厂在不同环境情景下的行为的假设陈述，并分析模型简化的可能性。