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.

盐应激会引起植物的重要形态改变，对光截距和作物生产力产生了巨大影响。因此，重要的是要在旨在克服盐度引起的产量降低的策略中包括形态信息。对于番茄等空间异质作物而言，尤其如此。该项目的目的是对盐度引起的形态变化的综合理解对于番茄生产力显着。因此，我们希望使用LSYSTEM形式主义概念化番茄在盐胁迫下生长的番茄的建筑模型。植物发育将建模为器官外观，膨胀，衰老以及几何细节（例如3-D器官定位，方向和形状）的整合。这些事件中的每一个都将根据盐度，温度，蒸气压力不足或光进行建模。这些环境因素对冠层开发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。该模型将在计算机模拟中充当研究工具，以生成假设陈述，描述在不同的环境方案下植物的行为，并分析模型简化的可能性。