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Field drought conditions impact yield but not nutritional quality of the seed in common bean (Phaseolus vulgaris L.)

Drought substantially limits seed yield of common bean (Phaseolus vulgaris L.) in the tropics. Understanding the interaction of drought on yield and the nutrient concentration of the seed is vital in order to supply nutrition to the millions of consumers who rely on common bean as a staple crop. Nev...

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Autores principales: Smith, Millicent R., Veneklaas, Erik, Polania, Jose, Rao, Idupulapati M., Beebe, Stephen E., Merchant, Andrew
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6553706/
https://www.ncbi.nlm.nih.gov/pubmed/31170187
http://dx.doi.org/10.1371/journal.pone.0217099
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author Smith, Millicent R.
Veneklaas, Erik
Polania, Jose
Rao, Idupulapati M.
Beebe, Stephen E.
Merchant, Andrew
author_facet Smith, Millicent R.
Veneklaas, Erik
Polania, Jose
Rao, Idupulapati M.
Beebe, Stephen E.
Merchant, Andrew
author_sort Smith, Millicent R.
collection PubMed
description Drought substantially limits seed yield of common bean (Phaseolus vulgaris L.) in the tropics. Understanding the interaction of drought on yield and the nutrient concentration of the seed is vital in order to supply nutrition to the millions of consumers who rely on common bean as a staple crop. Nevertheless, the impact of drought on common bean for both yield and nutrient concentration has not yet been concurrently investigated in a field environment. Using 10 bred lines developed by CIAT and its partners for their improved adaptation to drought and phosphorus deficiency, this study characterised the impact of drought on yield and nutrient concentration for leaf and seed tissue of common bean grown in the field. Drought significantly reduced leaf area (by ~50%), harvest index (by ~60%), yield (by ~70%), seed weight (by ~25%) and enriched carbon isotope abundance (δ(13)C) in the seed. Within the soluble leaf fraction, drought significantly decreased the concentration of mineral nutrients and amino acids, whereas no negative effect on the concentration of nutrients and amino acids was detected within the seed. Genotypic variation in nutrient concentration in both the leaf and seed tissue was identified and should be explored further to identify traits that may confer tolerance to abiotic stress.
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spelling pubmed-65537062019-06-17 Field drought conditions impact yield but not nutritional quality of the seed in common bean (Phaseolus vulgaris L.) Smith, Millicent R. Veneklaas, Erik Polania, Jose Rao, Idupulapati M. Beebe, Stephen E. Merchant, Andrew PLoS One Research Article Drought substantially limits seed yield of common bean (Phaseolus vulgaris L.) in the tropics. Understanding the interaction of drought on yield and the nutrient concentration of the seed is vital in order to supply nutrition to the millions of consumers who rely on common bean as a staple crop. Nevertheless, the impact of drought on common bean for both yield and nutrient concentration has not yet been concurrently investigated in a field environment. Using 10 bred lines developed by CIAT and its partners for their improved adaptation to drought and phosphorus deficiency, this study characterised the impact of drought on yield and nutrient concentration for leaf and seed tissue of common bean grown in the field. Drought significantly reduced leaf area (by ~50%), harvest index (by ~60%), yield (by ~70%), seed weight (by ~25%) and enriched carbon isotope abundance (δ(13)C) in the seed. Within the soluble leaf fraction, drought significantly decreased the concentration of mineral nutrients and amino acids, whereas no negative effect on the concentration of nutrients and amino acids was detected within the seed. Genotypic variation in nutrient concentration in both the leaf and seed tissue was identified and should be explored further to identify traits that may confer tolerance to abiotic stress. Public Library of Science 2019-06-06 /pmc/articles/PMC6553706/ /pubmed/31170187 http://dx.doi.org/10.1371/journal.pone.0217099 Text en https://creativecommons.org/publicdomain/zero/1.0/ This is an open access article, free of all copyright, and may be freely reproduced, distributed, transmitted, modified, built upon, or otherwise used by anyone for any lawful purpose. The work is made available under the Creative Commons CC0 (https://creativecommons.org/publicdomain/zero/1.0/) public domain dedication.
spellingShingle Research Article
Smith, Millicent R.
Veneklaas, Erik
Polania, Jose
Rao, Idupulapati M.
Beebe, Stephen E.
Merchant, Andrew
Field drought conditions impact yield but not nutritional quality of the seed in common bean (Phaseolus vulgaris L.)
title Field drought conditions impact yield but not nutritional quality of the seed in common bean (Phaseolus vulgaris L.)
title_full Field drought conditions impact yield but not nutritional quality of the seed in common bean (Phaseolus vulgaris L.)
title_fullStr Field drought conditions impact yield but not nutritional quality of the seed in common bean (Phaseolus vulgaris L.)
title_full_unstemmed Field drought conditions impact yield but not nutritional quality of the seed in common bean (Phaseolus vulgaris L.)
title_short Field drought conditions impact yield but not nutritional quality of the seed in common bean (Phaseolus vulgaris L.)
title_sort field drought conditions impact yield but not nutritional quality of the seed in common bean (phaseolus vulgaris l.)
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6553706/
https://www.ncbi.nlm.nih.gov/pubmed/31170187
http://dx.doi.org/10.1371/journal.pone.0217099
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