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Wheat Growth Process 3D Visualization Research Based on Growth Model

  • Hailong Liu
  • Shuqin Li
  • Yeping ZhuEmail author
  • Shengping Liu
  • Shijuan Li
Conference paper
Part of the IFIP Advances in Information and Communication Technology book series (IFIPAICT, volume 545)

Abstract

With the rapid development of computer virtual technology and agricultural information technology, crop Three-Dimensional (3D) visualization plays an increasingly important part in predicting crop growth dynamic, planting management, and crop breeding. Due to the complexity of wheat morphological structure, as well as big difference on morphological characteristics at different stages, it is a big challenge to build the wheat growth 3D visualization. In this study, the field experiments were carried out from 2015 to 2016 at Tianjin in China, including 3 wheat cultivars under 3 nitrogen application levels. Based on the field experiment, the wheat morphological data, such as length, width, bending angle of leaf, stem and leaf angle, stem diameter, etc., were collected periodically. Then, the quantitative relationship between wheat morphological data and effective accumulated temperature was analyzed, and the growth simulation models of leaf length, maximum leaf width, leaf height and plant height were built by logistic equation. Based the mode test, the logistic model could predicate the wheat leaf growth precisely. Based on the wheat morphological characteristic parameters and topology structure, we established construction algorithm of wheat leaf main vein control point using parameterized modeling method based on curve and curved surface. With the aid of Non-Uniform Rational B-Splines (NURBS) technology and OpenGL graphics library, the wheat organs geometric models were constructed, such as leaf, leaf sheath, stem etc. As a result, Wheat growth simulation model, which was constructed by the effective accumulated temperature, could better predict wheat growth status. Combined with wheat morphological structure model, growth visualization of different varieties wheat under different nitrogen levels was realized, and 3D visualization of wheat growth process was finally realized. The 3D visualization mode can provide wheat crop growth dynamic prediction, cultivation management control and crop plant type design, provide strong technical support for wheat crop ideal plant type screening, high yield, high efficiency, lodging resistance, etc.

Keywords

Wheat Effective accumulated temperature Growth simulation model Morphological structure model 3D visualization 

Notes

Acknowledgments

The study was funded by the National Natural Science Foundation of China (Grant no. 41471285), the Agricultural Science and Technology Innovation Program (ASTIP) of Chinese Academy of Agricultural Sciences (CAAS-ASTIP-2016-AII), Fundamental Research Funds for Central Non-profit Scientific Institution (JBYW-AII-2017-34), and the National Key Research and Development Program of China (2016YFD0200601).

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Copyright information

© IFIP International Federation for Information Processing 2019

Authors and Affiliations

  • Hailong Liu
    • 1
  • Shuqin Li
    • 2
  • Yeping Zhu
    • 1
    Email author
  • Shengping Liu
    • 1
  • Shijuan Li
    • 1
  1. 1.Institute of Agricultural InformationChinese Academy of Agricultural Sciences/Key Laboratory of Agri-Information Service Technology, Ministry of AgricultureBeijingChina
  2. 2.Information CenterNorth China University of TechnologyBeijingChina

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