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Photosynthetic capacity, nutrient status, and growth of maize (Zea mays L.) upon MgSO(4) leaf-application
The major plant nutrient magnesium (Mg) is involved in numerous physiological processes and its deficiency can severely reduce the yield and quality of crops. Since Mg availability in soil and uptake into the plant is often limited by unfavorable soil or climatic conditions, application of Mg onto l...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Frontiers Media S.A.
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4288286/ https://www.ncbi.nlm.nih.gov/pubmed/25620973 http://dx.doi.org/10.3389/fpls.2014.00781 |
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author | Jezek, Mareike Geilfus, Christoph-Martin Bayer, Anne Mühling, Karl-Hermann |
author_facet | Jezek, Mareike Geilfus, Christoph-Martin Bayer, Anne Mühling, Karl-Hermann |
author_sort | Jezek, Mareike |
collection | PubMed |
description | The major plant nutrient magnesium (Mg) is involved in numerous physiological processes and its deficiency can severely reduce the yield and quality of crops. Since Mg availability in soil and uptake into the plant is often limited by unfavorable soil or climatic conditions, application of Mg onto leaves, the site with highest physiological Mg demand, might be a reasonable alternative fertilization strategy. This study aimed to investigate, if MgSO(4) leaf-application in practically relevant amounts can efficiently alleviate the effects of Mg starvation in maize, namely reduced photosynthesis capacity, disturbed ion homeostasis and growth depression. Results clearly demonstrated that Mg deficiency could be mitigated by MgSO(4) leaf-application as efficiently as by resupply of MgSO(4) via the roots in vegetative maize plants. Significant increases in SPAD values and net rate of CO(2)-assimilation as well as enhanced shoot biomass have been achieved. Ion analysis furthermore revealed an improvement of the nutrient status of Mg-deficient plants with regard to [Mg], [K], and [Mn] in distinct organs, thereby reducing the risk of Mn-toxicity at the rootside, which often occurs together with Mg deficiency on acid soils. In conclusion, foliar fertilization with Mg proved to be an efficient strategy to adequately supply maize plants with Mg and might hence be of practical relevance to correct nutrient deficiencies during the growing season. |
format | Online Article Text |
id | pubmed-4288286 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | Frontiers Media S.A. |
record_format | MEDLINE/PubMed |
spelling | pubmed-42882862015-01-23 Photosynthetic capacity, nutrient status, and growth of maize (Zea mays L.) upon MgSO(4) leaf-application Jezek, Mareike Geilfus, Christoph-Martin Bayer, Anne Mühling, Karl-Hermann Front Plant Sci Plant Science The major plant nutrient magnesium (Mg) is involved in numerous physiological processes and its deficiency can severely reduce the yield and quality of crops. Since Mg availability in soil and uptake into the plant is often limited by unfavorable soil or climatic conditions, application of Mg onto leaves, the site with highest physiological Mg demand, might be a reasonable alternative fertilization strategy. This study aimed to investigate, if MgSO(4) leaf-application in practically relevant amounts can efficiently alleviate the effects of Mg starvation in maize, namely reduced photosynthesis capacity, disturbed ion homeostasis and growth depression. Results clearly demonstrated that Mg deficiency could be mitigated by MgSO(4) leaf-application as efficiently as by resupply of MgSO(4) via the roots in vegetative maize plants. Significant increases in SPAD values and net rate of CO(2)-assimilation as well as enhanced shoot biomass have been achieved. Ion analysis furthermore revealed an improvement of the nutrient status of Mg-deficient plants with regard to [Mg], [K], and [Mn] in distinct organs, thereby reducing the risk of Mn-toxicity at the rootside, which often occurs together with Mg deficiency on acid soils. In conclusion, foliar fertilization with Mg proved to be an efficient strategy to adequately supply maize plants with Mg and might hence be of practical relevance to correct nutrient deficiencies during the growing season. Frontiers Media S.A. 2015-01-09 /pmc/articles/PMC4288286/ /pubmed/25620973 http://dx.doi.org/10.3389/fpls.2014.00781 Text en Copyright © 2015 Jezek, Geilfus, Bayer and Mühling. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. |
spellingShingle | Plant Science Jezek, Mareike Geilfus, Christoph-Martin Bayer, Anne Mühling, Karl-Hermann Photosynthetic capacity, nutrient status, and growth of maize (Zea mays L.) upon MgSO(4) leaf-application |
title | Photosynthetic capacity, nutrient status, and growth of maize (Zea mays L.) upon MgSO(4) leaf-application |
title_full | Photosynthetic capacity, nutrient status, and growth of maize (Zea mays L.) upon MgSO(4) leaf-application |
title_fullStr | Photosynthetic capacity, nutrient status, and growth of maize (Zea mays L.) upon MgSO(4) leaf-application |
title_full_unstemmed | Photosynthetic capacity, nutrient status, and growth of maize (Zea mays L.) upon MgSO(4) leaf-application |
title_short | Photosynthetic capacity, nutrient status, and growth of maize (Zea mays L.) upon MgSO(4) leaf-application |
title_sort | photosynthetic capacity, nutrient status, and growth of maize (zea mays l.) upon mgso(4) leaf-application |
topic | Plant Science |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4288286/ https://www.ncbi.nlm.nih.gov/pubmed/25620973 http://dx.doi.org/10.3389/fpls.2014.00781 |
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