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Inter- and intraspecific variation in leaf economic traits in wheat and maize
Leaf Economics Spectrum (LES) trait variation underpins multiple agroecological processes and many prominent crop yield models. While there are numerous independent studies assessing trait variation in crops, to date there have been no comprehensive assessments of intraspecific trait variation (ITV)...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Oxford University Press
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5814918/ https://www.ncbi.nlm.nih.gov/pubmed/29484152 http://dx.doi.org/10.1093/aobpla/ply006 |
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author | Martin, Adam R Hale, Christine E Cerabolini, Bruno E L Cornelissen, Johannes H C Craine, Joseph Gough, William A Kattge, Jens Tirona, Cairan K F |
author_facet | Martin, Adam R Hale, Christine E Cerabolini, Bruno E L Cornelissen, Johannes H C Craine, Joseph Gough, William A Kattge, Jens Tirona, Cairan K F |
author_sort | Martin, Adam R |
collection | PubMed |
description | Leaf Economics Spectrum (LES) trait variation underpins multiple agroecological processes and many prominent crop yield models. While there are numerous independent studies assessing trait variation in crops, to date there have been no comprehensive assessments of intraspecific trait variation (ITV) in LES traits for wheat and maize: the world’s most widespread crops. Using trait databases and peer-reviewed literature, we compiled over 700 records of specific leaf area (SLA), maximum photosynthetic rates (A(max)) and leaf nitrogen (N) concentrations, for wheat and maize. We evaluated intraspecific LES trait variation, and intraspecific trait–environment relationships. While wheat and maize occupy the upper 90th percentile of LES trait values observed across a global species pool, ITV ranged widely across the LES in wheat and maize. Fertilization treatments had strong impacts on leaf N, while plant developmental stage (here standardized as the number of days since planting) had strong impacts on A(max); days since planting, N fertilization and irrigation all influenced SLA. When controlling for these factors, intraspecific responses to temperature and precipitation explained 39.4 and 43.7 % of the variation in A(max) and SLA, respectively, but only 5.4 % of the variation in leaf N. Despite a long history of domestication in these species, ITV in wheat and maize among and within cultivars remains large. Intraspecific trait variation is a critical consideration to refine regional to global models of agroecosystem structure, function and food security. Considerable opportunities and benefits exist for consolidating a crop trait database for a wider range of domesticated plant species. |
format | Online Article Text |
id | pubmed-5814918 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | Oxford University Press |
record_format | MEDLINE/PubMed |
spelling | pubmed-58149182018-02-26 Inter- and intraspecific variation in leaf economic traits in wheat and maize Martin, Adam R Hale, Christine E Cerabolini, Bruno E L Cornelissen, Johannes H C Craine, Joseph Gough, William A Kattge, Jens Tirona, Cairan K F AoB Plants Research Article Leaf Economics Spectrum (LES) trait variation underpins multiple agroecological processes and many prominent crop yield models. While there are numerous independent studies assessing trait variation in crops, to date there have been no comprehensive assessments of intraspecific trait variation (ITV) in LES traits for wheat and maize: the world’s most widespread crops. Using trait databases and peer-reviewed literature, we compiled over 700 records of specific leaf area (SLA), maximum photosynthetic rates (A(max)) and leaf nitrogen (N) concentrations, for wheat and maize. We evaluated intraspecific LES trait variation, and intraspecific trait–environment relationships. While wheat and maize occupy the upper 90th percentile of LES trait values observed across a global species pool, ITV ranged widely across the LES in wheat and maize. Fertilization treatments had strong impacts on leaf N, while plant developmental stage (here standardized as the number of days since planting) had strong impacts on A(max); days since planting, N fertilization and irrigation all influenced SLA. When controlling for these factors, intraspecific responses to temperature and precipitation explained 39.4 and 43.7 % of the variation in A(max) and SLA, respectively, but only 5.4 % of the variation in leaf N. Despite a long history of domestication in these species, ITV in wheat and maize among and within cultivars remains large. Intraspecific trait variation is a critical consideration to refine regional to global models of agroecosystem structure, function and food security. Considerable opportunities and benefits exist for consolidating a crop trait database for a wider range of domesticated plant species. Oxford University Press 2018-01-24 /pmc/articles/PMC5814918/ /pubmed/29484152 http://dx.doi.org/10.1093/aobpla/ply006 Text en © The Author(s) 2018. Published by Oxford University Press on behalf of the Annals of Botany Company. http://creativecommons.org/licenses/by/4.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Research Article Martin, Adam R Hale, Christine E Cerabolini, Bruno E L Cornelissen, Johannes H C Craine, Joseph Gough, William A Kattge, Jens Tirona, Cairan K F Inter- and intraspecific variation in leaf economic traits in wheat and maize |
title | Inter- and intraspecific variation in leaf economic traits in wheat and maize |
title_full | Inter- and intraspecific variation in leaf economic traits in wheat and maize |
title_fullStr | Inter- and intraspecific variation in leaf economic traits in wheat and maize |
title_full_unstemmed | Inter- and intraspecific variation in leaf economic traits in wheat and maize |
title_short | Inter- and intraspecific variation in leaf economic traits in wheat and maize |
title_sort | inter- and intraspecific variation in leaf economic traits in wheat and maize |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5814918/ https://www.ncbi.nlm.nih.gov/pubmed/29484152 http://dx.doi.org/10.1093/aobpla/ply006 |
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