Functional-structural plant model for testing the effect of maize architecture on hourly light distribution in strip-intercropping systems

2018 6th International Symposium on Plant Growth Modeling, Simulation, Visualization and Applications (PMA) Pub Date : 2018-11-01 DOI:10.1109/PMA.2018.8611609

Sebastian Munz, S. Graeff‐Hönninger, M. Henke

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引用次数: 2

Abstract

Intercropping is an important aspect for the sustainable intensification of agriculture. Maize and a shorter legume crop are common species in intercropping systems and competition for light plays a major role on productivity given the large differences in canopy height. Particularly in intercropping systems, the light intensity for the shorter crop fluctuates strongly during the day. For selecting a maize cultivar, the influence of its architecture on this light fluctuation is very important. With the aim to pre-select suitable cultivars for experimentation and to guide breeding programs, modelling approaches are crucial. Here we present and evaluate a functional-structural plant model (FSPM) able to simulate on an hourly resolution the influence of architectural characteristics of maize on light distribution within strip-intercropping systems. This is a first step towards a complex dynamic FSPM intercropping model, suitable for detailed investigations of the effects of plant architecture on light absorption, photosynthesis and finally biomass production.

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测试玉米结构对带状间作系统小时光分布影响的功能-结构植物模型

间作是农业可持续集约化的一个重要方面。玉米和较矮的豆科作物是间作系统中常见的物种，由于冠层高度的巨大差异，对光的竞争对生产力起主要作用。特别是在间作系统中，较矮作物的光照强度在白天波动较大。在选择玉米品种时，其结构对这种光波动的影响是非常重要的。为了预先选择适合实验的品种和指导育种计划，建模方法至关重要。在这里，我们提出并评估了一个功能-结构植物模型(FSPM)，该模型能够以小时分辨率模拟玉米结构特征对带状间作系统内光分布的影响。这是迈向复杂动态FSPM间作模型的第一步，适用于详细研究植物结构对光吸收、光合作用和最终生物量生产的影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2018 6th International Symposium on Plant Growth Modeling, Simulation, Visualization and Applications (PMA)

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