ALEXANDRA BURGESS Alexandra.Burgess@nottingham.ac.uk
Assistant Professor in Agriculture and The Environment
Interactions between nitrogen nutrition, canopy architecture and photosynthesis in rice, assessed using high-resolution 3D reconstruction
Burgess, Alexandra J; Herman, Tiara; Ali, Asgar; Murchie, Erik H.
Authors
Tiara Herman
Asgar Ali
Dr ERIK MURCHIE erik.murchie@nottingham.ac.uk
Professor of Applied Plant Physiology
Abstract
Increasing nitrogen use efficiency is a key target for yield improvement programs. Here we identify features of rice canopy architecture during altered N availability and link them to photosynthetic productivity. Empirical mathematical modelling, high-resolution 3-dimensional (3D) reconstruction and gas exchange measurements were employed to investigate the effect of a mild N deficiency vs. surplus N application on canopy architecture, light and photosynthesis distribution throughout development. Three contrasting rice lines: two Malaysian rice varieties (MR219 and MR253) and a high-yielding indica cultivar (IR64) were cultivated. 3D reconstruction indicated key N-dependent differences in plant architecture and canopy light distribution including changes to leaf area index (LAI), tiller number, leaf angle and modelled light extinction coefficients. Measured leaf photosynthetic capacity did not differ substantially between the high and reduced N treatments; however, modelled canopy photosynthesis rate indicated a higher carbon gain per unit leaf area for the reduced N treatment but a higher carbon gain per unit ground area for the high N treatment. This is a result of altered canopy structure leading to increased light distribution under reduced N which partially offsets the reduced LAI. Within rice, altered N availability results in the development of full photosynthetically functional leaves, but leads to altered canopy architecture, light distribution and overall productivity suggested that N availability can be fine-tuned to optimize biomass production. We propose wider use of 3D reconstruction to assess canopy architecture and productivity under differing N availabilities for a range of species.
Citation
Burgess, A. J., Herman, T., Ali, A., & Murchie, E. H. (2021). Interactions between nitrogen nutrition, canopy architecture and photosynthesis in rice, assessed using high-resolution 3D reconstruction. in silico Plants, 3(1), https://doi.org/10.1093/insilicoplants/diaa017
Journal Article Type | Article |
---|---|
Acceptance Date | Dec 15, 2020 |
Online Publication Date | Dec 30, 2020 |
Publication Date | 2021 |
Deposit Date | Jan 7, 2021 |
Publicly Available Date | Jan 7, 2021 |
Journal | in silico Plants |
Print ISSN | 2517-5025 |
Electronic ISSN | 2517-5025 |
Publisher | Oxford University Press (OUP) |
Peer Reviewed | Peer Reviewed |
Volume | 3 |
Issue | 1 |
Article Number | diaa017 |
DOI | https://doi.org/10.1093/insilicoplants/diaa017 |
Public URL | https://nottingham-repository.worktribe.com/output/5184212 |
Publisher URL | https://academic.oup.com/insilicoplants/article/3/1/diaa017/6055597 |
Files
Interactions between nitrogen nutrition, canopy architecture and photosynthesis in rice, assessed using high resolution 3D reconstruction
(597 Kb)
PDF
You might also like
Does canopy angle influence radiation use efficiency of sugar beet?
(2023)
Journal Article
Paving the way towards future-proofing our crops
(2023)
Journal Article
A multiscale mathematical model describing the growth and development of bambara groundnut
(2022)
Journal Article
Downloadable Citations
About Repository@Nottingham
Administrator e-mail: discovery-access-systems@nottingham.ac.uk
This application uses the following open-source libraries:
SheetJS Community Edition
Apache License Version 2.0 (http://www.apache.org/licenses/)
PDF.js
Apache License Version 2.0 (http://www.apache.org/licenses/)
Font Awesome
SIL OFL 1.1 (http://scripts.sil.org/OFL)
MIT License (http://opensource.org/licenses/mit-license.html)
CC BY 3.0 ( http://creativecommons.org/licenses/by/3.0/)
Powered by Worktribe © 2024
Advanced Search