Three-dimensional plant architecture and sunlit-shaded patterns: a stochastic model of light dynamics in canopies.

Annals of Botany
Renata RetkuteSimon P Preston

Abstract

Diurnal changes in solar position and intensity combined with the structural complexity of plant architecture result in highly variable and dynamic light patterns within the plant canopy. This affects productivity through the complex ways that photosynthesis responds to changes in light intensity. Current methods to characterize light dynamics, such as ray-tracing, are able to produce data with excellent spatio-temporal resolution but are computationally intensive and the resulting data are complex and high-dimensional. This necessitates development of more economical models for summarizing the data and for simulating realistic light patterns over the course of a day. High-resolution reconstructions of field-grown plants are assembled in various configurations to form canopies, and a forward ray-tracing algorithm is applied to the canopies to compute light dynamics at high (1 min) temporal resolution. From the ray-tracer output, the sunlit or shaded state for each patch on the plants is determined, and these data are used to develop a novel stochastic model for the sunlit-shaded patterns. The model is designed to be straightforward to fit to data using maximum likelihood estimation, and fast to simulate from. For a wide range o...Continue Reading

References

Nov 13, 2002·Plant Physiology·Gustavo Angel MaddonniJorge J Casal
Jan 12, 2005·Journal of Experimental Botany·Robin G Walters
Nov 27, 2009·Plant Physiology·Kleovoulos AthanasiouGiles N Johnson
Mar 5, 2014·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Alexander V Ruban, Erica Belgio
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Oct 7, 2016·Frontiers in Plant Science·Alexandra J BurgessErik H Murchie
Feb 12, 2017·Plant Physiology·Silvere Vialet-ChabrandTracy Lawson
Dec 9, 2017·Plant Physiology·Alexandra J TownsendErik H Murchie

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Citations

Mar 2, 2019·Journal of Experimental Botany·William T SalterThomas N Buckley
Jun 22, 2020·International Journal of Biometeorology·Yuping LvHaiyu Wang
Apr 9, 2020·Frontiers in Plant Science·Alejandro Morales, Elias Kaiser
May 4, 2021·Frontiers in Plant Science·Armida GjindaliPablo I Calzadilla
Jul 2, 2021·Plant Phenomics : a Science Partner Journal·Wei GuoBaskar Ganapathysubramanian
Aug 22, 2021·Plant, Cell & Environment·Alexandra J BurgessErik H Murchie

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