Influence of temperature and light gradient on leaf arrangement and geometry in cucumber canopies: structural phenotyping analysis and modelling
Influence of temperature and light gradient on leaf arrangement and geometry in cucumber canopies: structural phenotyping analysis and modelling
复制标题
温度和光照梯度对黄瓜冠层叶片排列和几何形状的影响：结构表型分析和建模
DOI：
10.1016/j.inpa.2018.11.002
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发表时间：
2018
影响因子：
--
通讯作者：
Shenglian Lu
中科院分区：
文献类型：
--
作者：
Tingting Qian;Xiuguo Zheng;Xinyu Guo;Weiliang Wen;Juan Yang;Shenglian Lu
准确的结构表型分析对于了解植物结构对环境变化的适应策略至关重要。本研究的目的是分析受方位角产生的光梯度影响的叶片排列和几何形状；并通过考虑更多几何参数，使用回归方程模拟静态和异质黄瓜冠层。获得结构器官参数的三个连续测量值以拟合器官起始和扩张曲线。获得了三种密度处理的四次测量结果以验证模型的准确性。为了更详细地描述叶片分布和方向特征，将方位角和高程模型引入冠层结构建模中。根据叶面积指数和太阳高度角模拟叶片分布频率，根据叶片方位角和顶部植物体数模拟叶片高度。该研究为黄瓜冠层结构表型分析提供了重要基础，这对于未来更准确的功能结构建模至关重要。
Accurate structural phenotyping analysis is essential to understand plant architectural adaptation strategy to environment change. The aim of this study was to analyze leaf arrangement and geometry influenced by azimuthally generated light gradient; and to simulate static and heterogeneous cucumber canopies using regression equations by considering more geometric parameters. Three continuous measurements of structural organ parameters were obtained to fit the organ initiation and expansion curves. Four measurements with three density treatments were obtained to validate model accuracy. To describe leaf distribution and orientation characteristics in more detail, azimuth and elevation models were introduced into canopy structure modelling. Leaf distribution frequency was simulated based on leaf area index and solar elevation angle while leaf elevation was simulated based on leaf azimuth and acropetal phytomer number. This study provides an important basis for structural phenotyping analysis of cucumber canopy, which is essential for more accurate functional-structural modelling in the future.