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Leaf shape simulation of castor bean and its application in nondestructive leaf area estimation

文献类型： 外文期刊

作者： Wei, Hailin 1 ; Li, Xumeng 1 ; Li, Ming 3 ; Huang, Huang 1 ;

作者机构： 1.Hunan Agr Univ, Sch Agron, Changsha 410128, Hunan, Peoples R China

2.Hunan Acad Forestry, Changsha 410004, Hunan, Peoples R China

3.Hunan Acad Agr Sci, Changsha 410000, Hunan, Peoples R China

关键词： leaf shape; leaf area; geometrical characteristics; mathematical model; image processing

期刊名称：INTERNATIONAL JOURNAL OF AGRICULTURAL AND BIOLOGICAL ENGINEERING （ 影响因子：2.032； 五年影响因子：2.137 ）

ISSN： 1934-6344

年卷期： 2019 年 12 卷 4 期

页码：

收录情况： SCI

摘要： The leaf shape and the measurement of leaf area are crucial in plant growth modeling. The castor bean leaf is large, palm-shaped with multiple clefts. The leaf shape simulation and leaf area estimation were less studied. The circular model and nonrectangular hyperbolic model were developed to describe the standard leaf shape of castor bean in this study, providing a model for simulating the leaf shape and a nondestructive way for estimating the leaf area respectively. In addition, a formula was established to estimate the leaf area by the parameter of the standard leaf shape of castor bean. Based on validation results, the circular model fits the landmarks and nonrectangular hyperbolic model fits the lobe margins very well. The leaf area was accurately estimated by the formula. This study could provide a theoretical reference for leaf visualization, a nondestructive and easy way to estimate the leaf area for other complex leaves with multiple lobes.

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