Drought impacts mineral contents in Andean Potato cultivars
Mineral micro‐ and macronutrients in tubers of 21 Andean potato cultivars were investigated in a field trial under control and drought conditions. Mineral concentrations in potato tubers were highly variable between genotypes; some were significantly and positively correlated with each other, the mo...
| Main Authors: | , , , , , , , , |
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| Format: | Journal Article |
| Language: | Inglés |
| Published: |
Wiley
2012
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/66524 |
| _version_ | 1855542978785837056 |
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| author | Lefevre, I. Ziebel, J. Guignard, C. Hausman, J.F. Gutiérrez Rosales, R.O. Bonierbale, Merideth W. Hoffmann, L. Schafleitner, R. Evers, D. |
| author_browse | Bonierbale, Merideth W. Evers, D. Guignard, C. Gutiérrez Rosales, R.O. Hausman, J.F. Hoffmann, L. Lefevre, I. Schafleitner, R. Ziebel, J. |
| author_facet | Lefevre, I. Ziebel, J. Guignard, C. Hausman, J.F. Gutiérrez Rosales, R.O. Bonierbale, Merideth W. Hoffmann, L. Schafleitner, R. Evers, D. |
| author_sort | Lefevre, I. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Mineral micro‐ and macronutrients in tubers of 21 Andean potato cultivars were investigated in a field trial under control and drought conditions. Mineral concentrations in potato tubers were highly variable between genotypes; some were significantly and positively correlated with each other, the most noteworthy associations being Na–Ca, Mn–Mg and Zn–Fe, in both control and drought‐stressed plants. Overall, increasing yields are related to decreased concentrations of some nutrients, albeit some higher‐yielding cultivars also displayed important concentrations of nutrients in their tubers. The most striking result was the increase in the concentration of the majority of the analysed cations in a large number of cultivars in response to water depletion; some of them, such as K, may be related to water homeostasis and/or to sucrose loading and unloading in phloem sap. Tuber mineral concentrations were not related to drought tolerance in terms of tuber productivity. Interestingly, yield loss under drought was not correlated with yield potential under control conditions. Identification of cultivars such as 703264 and 701106 able to maintain good yield stability in association with high mineral contents under water deprivation is of particular interest, especially in view of the importance of potato as a staple crop and the expansion of its cultivation to non‐optimal cultivation areas in the context of changing climatic conditions. |
| format | Journal Article |
| id | CGSpace66524 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2012 |
| publishDateRange | 2012 |
| publishDateSort | 2012 |
| publisher | Wiley |
| publisherStr | Wiley |
| record_format | dspace |
| spelling | CGSpace665242024-05-01T08:20:06Z Drought impacts mineral contents in Andean Potato cultivars Lefevre, I. Ziebel, J. Guignard, C. Hausman, J.F. Gutiérrez Rosales, R.O. Bonierbale, Merideth W. Hoffmann, L. Schafleitner, R. Evers, D. potatoes drought yield losses mineral content Mineral micro‐ and macronutrients in tubers of 21 Andean potato cultivars were investigated in a field trial under control and drought conditions. Mineral concentrations in potato tubers were highly variable between genotypes; some were significantly and positively correlated with each other, the most noteworthy associations being Na–Ca, Mn–Mg and Zn–Fe, in both control and drought‐stressed plants. Overall, increasing yields are related to decreased concentrations of some nutrients, albeit some higher‐yielding cultivars also displayed important concentrations of nutrients in their tubers. The most striking result was the increase in the concentration of the majority of the analysed cations in a large number of cultivars in response to water depletion; some of them, such as K, may be related to water homeostasis and/or to sucrose loading and unloading in phloem sap. Tuber mineral concentrations were not related to drought tolerance in terms of tuber productivity. Interestingly, yield loss under drought was not correlated with yield potential under control conditions. Identification of cultivars such as 703264 and 701106 able to maintain good yield stability in association with high mineral contents under water deprivation is of particular interest, especially in view of the importance of potato as a staple crop and the expansion of its cultivation to non‐optimal cultivation areas in the context of changing climatic conditions. 2012-06 2015-06-01T12:05:29Z 2015-06-01T12:05:29Z Journal Article https://hdl.handle.net/10568/66524 en Limited Access Wiley Lefevre, I.; Ziebel, J.; Guignard, C.; Hausman, J.F.; Gutierrez Rosales, R.O.; Bonierbale, M.; Hoffmann, L.; Schafleitner, R.; Evers, D. 2012. Drought impacts mineral contents in Andean Potato cultivars. Journal of Agronomy and Crop Science. (Korea). ISSN 0931-2250. 198(3):196-206. |
| spellingShingle | potatoes drought yield losses mineral content Lefevre, I. Ziebel, J. Guignard, C. Hausman, J.F. Gutiérrez Rosales, R.O. Bonierbale, Merideth W. Hoffmann, L. Schafleitner, R. Evers, D. Drought impacts mineral contents in Andean Potato cultivars |
| title | Drought impacts mineral contents in Andean Potato cultivars |
| title_full | Drought impacts mineral contents in Andean Potato cultivars |
| title_fullStr | Drought impacts mineral contents in Andean Potato cultivars |
| title_full_unstemmed | Drought impacts mineral contents in Andean Potato cultivars |
| title_short | Drought impacts mineral contents in Andean Potato cultivars |
| title_sort | drought impacts mineral contents in andean potato cultivars |
| topic | potatoes drought yield losses mineral content |
| url | https://hdl.handle.net/10568/66524 |
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