A three-dimensional canopy photosynthesis model in rice with a complete description of the canopy architecture, leaf physiology, and mechanical properties

Journal of Experimental Botany
Tian-Gen ChangXinguang Zhu

Abstract

In current rice breeding programs, morphological parameters such as plant height, leaf length and width, leaf angle, panicle architecture, and tiller number during the grain filling stage are used as major selection targets. However, so far, there is no robust approach to quantitatively define the optimal combinations of parameters that can lead to increased canopy radiation use efficiency (RUE). Here we report the development of a three-dimensional canopy photosynthesis model (3dCAP), which effectively combines three-dimensional canopy architecture, canopy vertical nitrogen distribution, a ray-tracing algorithm, and a leaf photosynthesis model. Concurrently, we developed an efficient workflow for the parameterization of 3dCAP. 3dCAP predicted daily canopy RUE for different nitrogen treatments of a given rice cultivar under different weather conditions. Using 3dCAP, we explored the influence of three canopy architectural parameters-tiller number, tiller angle and leaf angle-on canopy RUE. Under different weather conditions and different nitrogen treatments, canopy architecture optimized by manipulating these parameters can increase daily net canopy photosynthetic CO2 uptake by 10-52%. Generally, a smaller tiller angle was predi...Continue Reading

References

Mar 1, 1977·Applied Optics·C J Tucker, M W Garratt
Jan 1, 1995·Photosynthesis Research·J MarkwellJ L Mitchell
Mar 1, 1994·Photosynthesis Research·J S Amthor
Nov 3, 2015·Plant, Cell & Environment·Xin-Guang ZhuStephen P Long
Mar 25, 2017·Journal of Experimental Botany·Tian-Gen ChangChristine Raines
Dec 1, 2008·Functional Plant Biology : FPB·Mikolaj CieslakPrzemyslaw Prusinkiewicz

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Citations

May 16, 2019·Journal of Experimental Botany·Bertrand Muller, Pierre Martre
Jun 22, 2020·International Journal of Biometeorology·Yuping LvHaiyu Wang
Jul 11, 2020·Plant Methods·Tian-Gen ChangXin-Guang Zhu
Jan 11, 2021·Current Opinion in Plant Biology·Jessica Marie Waite, Christopher Dardick
Jul 11, 2021·The New Phytologist·Fusang LiuXin-Guang Zhu

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Software Mentioned

FPSM
CAPTS
MATLAB
fastTracer
3dCAP
Plants in silico

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