Cation exchange capacity and aluminum-calcium-magnesium binding in roots of bananas cultivated in soils and in nutrient solutions
Bananas (#Musa# spp.), as many other crop species. accumulate aluminum (Al) in roots when grown in nutrient solution containing Al ions. Aluminum can compete with calcium (Ca) and magnesium (Mg) on the root exchange sites, which has been reported as a possible cause for Al toxicity to the plant. We measured the cation exchange capacity of roots (CECR) of 5 banana cultivars (Grande Naine, Agbagba. Obino I'Ewaï, lgitsiri, and Kayinja) and determined the composition of the root exchange sites in nutrient solutions with and without Al, and in two tropical soils. Aluminum, Ca, and Mg were extracted using a sequential procedure involving 0.01 M copper sulphate for Cuextractable cations, 0.1 M hydrochloric acid and ash solubilization in nitric acid. The mean CECR values of the 5 cultivars were similar in the 2 soils and in the nutrient solution without Al (CECR = 23.0 cmolc kg-1), but significantly larger for bananas grown in nutrient solution with Al (CECR = 32.6cmolc kg-1). The most Al-sensitive cultivar (Kayinja) had larger CECR than the others. Calcium was the dominant Cu-extractable cation in all cases. In the roots grown in nutrient solution with Al and in the two soils, Al amounted to 15-35% of the sum of Cu-extractable cations, but most Al was not extracted with Cu. The Cu-extractable Mg was drastically reduced in nutrient solution with Al, whereas the Cu-extractable Ca was little affected. Therefore we suggest that the Al/Mg ratio on root exchange sites could be a better indicator of Al toxicity than the Al/Ca ratio.
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dig-cirad-fr-5093542024-01-28T10:39:10Z http://agritrop.cirad.fr/509354/ http://agritrop.cirad.fr/509354/ Cation exchange capacity and aluminum-calcium-magnesium binding in roots of bananas cultivated in soils and in nutrient solutions. Rufyikiri Gervais, Dufey Joseph E., Achard Raphaël, Delvaux Bruno. 2002. Communications in Soil Science and Plant Analysis, 33 (5-6) : 991-1009.https://doi.org/10.1081/CSS-120003079 <https://doi.org/10.1081/CSS-120003079> Cation exchange capacity and aluminum-calcium-magnesium binding in roots of bananas cultivated in soils and in nutrient solutions Rufyikiri, Gervais Dufey, Joseph E. Achard, Raphaël Delvaux, Bruno eng 2002 Communications in Soil Science and Plant Analysis F61 - Physiologie végétale - Nutrition H50 - Troubles divers des plantes P30 - Sciences et aménagement du sol Musa sciences du sol racine capacité d'échange ionique cation sol aluminium calcium magnesium solution nutritive carence du sol résistance aux facteurs nuisibles phytotoxicité http://aims.fao.org/aos/agrovoc/c_4993 http://aims.fao.org/aos/agrovoc/c_7188 http://aims.fao.org/aos/agrovoc/c_6651 http://aims.fao.org/aos/agrovoc/c_24864 http://aims.fao.org/aos/agrovoc/c_16169 http://aims.fao.org/aos/agrovoc/c_7156 http://aims.fao.org/aos/agrovoc/c_317 http://aims.fao.org/aos/agrovoc/c_1196 http://aims.fao.org/aos/agrovoc/c_4517 http://aims.fao.org/aos/agrovoc/c_5271 http://aims.fao.org/aos/agrovoc/c_7166 http://aims.fao.org/aos/agrovoc/c_6520 http://aims.fao.org/aos/agrovoc/c_5848 Bananas (#Musa# spp.), as many other crop species. accumulate aluminum (Al) in roots when grown in nutrient solution containing Al ions. Aluminum can compete with calcium (Ca) and magnesium (Mg) on the root exchange sites, which has been reported as a possible cause for Al toxicity to the plant. We measured the cation exchange capacity of roots (CECR) of 5 banana cultivars (Grande Naine, Agbagba. Obino I'Ewaï, lgitsiri, and Kayinja) and determined the composition of the root exchange sites in nutrient solutions with and without Al, and in two tropical soils. Aluminum, Ca, and Mg were extracted using a sequential procedure involving 0.01 M copper sulphate for Cuextractable cations, 0.1 M hydrochloric acid and ash solubilization in nitric acid. The mean CECR values of the 5 cultivars were similar in the 2 soils and in the nutrient solution without Al (CECR = 23.0 cmolc kg-1), but significantly larger for bananas grown in nutrient solution with Al (CECR = 32.6cmolc kg-1). The most Al-sensitive cultivar (Kayinja) had larger CECR than the others. Calcium was the dominant Cu-extractable cation in all cases. In the roots grown in nutrient solution with Al and in the two soils, Al amounted to 15-35% of the sum of Cu-extractable cations, but most Al was not extracted with Cu. The Cu-extractable Mg was drastically reduced in nutrient solution with Al, whereas the Cu-extractable Ca was little affected. Therefore we suggest that the Al/Mg ratio on root exchange sites could be a better indicator of Al toxicity than the Al/Ca ratio. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/509354/1/509354.pdf text Cirad license info:eu-repo/semantics/restrictedAccess https://agritrop.cirad.fr/mention_legale.html https://doi.org/10.1081/CSS-120003079 10.1081/CSS-120003079 http://catalogue-bibliotheques.cirad.fr/cgi-bin/koha/opac-detail.pl?biblionumber=173937 info:eu-repo/semantics/altIdentifier/doi/10.1081/CSS-120003079 info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.1081/CSS-120003079 |
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F61 - Physiologie végétale - Nutrition H50 - Troubles divers des plantes P30 - Sciences et aménagement du sol Musa sciences du sol racine capacité d'échange ionique cation sol aluminium calcium magnesium solution nutritive carence du sol résistance aux facteurs nuisibles phytotoxicité http://aims.fao.org/aos/agrovoc/c_4993 http://aims.fao.org/aos/agrovoc/c_7188 http://aims.fao.org/aos/agrovoc/c_6651 http://aims.fao.org/aos/agrovoc/c_24864 http://aims.fao.org/aos/agrovoc/c_16169 http://aims.fao.org/aos/agrovoc/c_7156 http://aims.fao.org/aos/agrovoc/c_317 http://aims.fao.org/aos/agrovoc/c_1196 http://aims.fao.org/aos/agrovoc/c_4517 http://aims.fao.org/aos/agrovoc/c_5271 http://aims.fao.org/aos/agrovoc/c_7166 http://aims.fao.org/aos/agrovoc/c_6520 http://aims.fao.org/aos/agrovoc/c_5848 F61 - Physiologie végétale - Nutrition H50 - Troubles divers des plantes P30 - Sciences et aménagement du sol Musa sciences du sol racine capacité d'échange ionique cation sol aluminium calcium magnesium solution nutritive carence du sol résistance aux facteurs nuisibles phytotoxicité http://aims.fao.org/aos/agrovoc/c_4993 http://aims.fao.org/aos/agrovoc/c_7188 http://aims.fao.org/aos/agrovoc/c_6651 http://aims.fao.org/aos/agrovoc/c_24864 http://aims.fao.org/aos/agrovoc/c_16169 http://aims.fao.org/aos/agrovoc/c_7156 http://aims.fao.org/aos/agrovoc/c_317 http://aims.fao.org/aos/agrovoc/c_1196 http://aims.fao.org/aos/agrovoc/c_4517 http://aims.fao.org/aos/agrovoc/c_5271 http://aims.fao.org/aos/agrovoc/c_7166 http://aims.fao.org/aos/agrovoc/c_6520 http://aims.fao.org/aos/agrovoc/c_5848 |
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F61 - Physiologie végétale - Nutrition H50 - Troubles divers des plantes P30 - Sciences et aménagement du sol Musa sciences du sol racine capacité d'échange ionique cation sol aluminium calcium magnesium solution nutritive carence du sol résistance aux facteurs nuisibles phytotoxicité http://aims.fao.org/aos/agrovoc/c_4993 http://aims.fao.org/aos/agrovoc/c_7188 http://aims.fao.org/aos/agrovoc/c_6651 http://aims.fao.org/aos/agrovoc/c_24864 http://aims.fao.org/aos/agrovoc/c_16169 http://aims.fao.org/aos/agrovoc/c_7156 http://aims.fao.org/aos/agrovoc/c_317 http://aims.fao.org/aos/agrovoc/c_1196 http://aims.fao.org/aos/agrovoc/c_4517 http://aims.fao.org/aos/agrovoc/c_5271 http://aims.fao.org/aos/agrovoc/c_7166 http://aims.fao.org/aos/agrovoc/c_6520 http://aims.fao.org/aos/agrovoc/c_5848 F61 - Physiologie végétale - Nutrition H50 - Troubles divers des plantes P30 - Sciences et aménagement du sol Musa sciences du sol racine capacité d'échange ionique cation sol aluminium calcium magnesium solution nutritive carence du sol résistance aux facteurs nuisibles phytotoxicité http://aims.fao.org/aos/agrovoc/c_4993 http://aims.fao.org/aos/agrovoc/c_7188 http://aims.fao.org/aos/agrovoc/c_6651 http://aims.fao.org/aos/agrovoc/c_24864 http://aims.fao.org/aos/agrovoc/c_16169 http://aims.fao.org/aos/agrovoc/c_7156 http://aims.fao.org/aos/agrovoc/c_317 http://aims.fao.org/aos/agrovoc/c_1196 http://aims.fao.org/aos/agrovoc/c_4517 http://aims.fao.org/aos/agrovoc/c_5271 http://aims.fao.org/aos/agrovoc/c_7166 http://aims.fao.org/aos/agrovoc/c_6520 http://aims.fao.org/aos/agrovoc/c_5848 Rufyikiri, Gervais Dufey, Joseph E. Achard, Raphaël Delvaux, Bruno Cation exchange capacity and aluminum-calcium-magnesium binding in roots of bananas cultivated in soils and in nutrient solutions |
description |
Bananas (#Musa# spp.), as many other crop species. accumulate aluminum (Al) in roots when grown in nutrient solution containing Al ions. Aluminum can compete with calcium (Ca) and magnesium (Mg) on the root exchange sites, which has been reported as a possible cause for Al toxicity to the plant. We measured the cation exchange capacity of roots (CECR) of 5 banana cultivars (Grande Naine, Agbagba. Obino I'Ewaï, lgitsiri, and Kayinja) and determined the composition of the root exchange sites in nutrient solutions with and without Al, and in two tropical soils. Aluminum, Ca, and Mg were extracted using a sequential procedure involving 0.01 M copper sulphate for Cuextractable cations, 0.1 M hydrochloric acid and ash solubilization in nitric acid. The mean CECR values of the 5 cultivars were similar in the 2 soils and in the nutrient solution without Al (CECR = 23.0 cmolc kg-1), but significantly larger for bananas grown in nutrient solution with Al (CECR = 32.6cmolc kg-1). The most Al-sensitive cultivar (Kayinja) had larger CECR than the others. Calcium was the dominant Cu-extractable cation in all cases. In the roots grown in nutrient solution with Al and in the two soils, Al amounted to 15-35% of the sum of Cu-extractable cations, but most Al was not extracted with Cu. The Cu-extractable Mg was drastically reduced in nutrient solution with Al, whereas the Cu-extractable Ca was little affected. Therefore we suggest that the Al/Mg ratio on root exchange sites could be a better indicator of Al toxicity than the Al/Ca ratio. |
format |
article |
topic_facet |
F61 - Physiologie végétale - Nutrition H50 - Troubles divers des plantes P30 - Sciences et aménagement du sol Musa sciences du sol racine capacité d'échange ionique cation sol aluminium calcium magnesium solution nutritive carence du sol résistance aux facteurs nuisibles phytotoxicité http://aims.fao.org/aos/agrovoc/c_4993 http://aims.fao.org/aos/agrovoc/c_7188 http://aims.fao.org/aos/agrovoc/c_6651 http://aims.fao.org/aos/agrovoc/c_24864 http://aims.fao.org/aos/agrovoc/c_16169 http://aims.fao.org/aos/agrovoc/c_7156 http://aims.fao.org/aos/agrovoc/c_317 http://aims.fao.org/aos/agrovoc/c_1196 http://aims.fao.org/aos/agrovoc/c_4517 http://aims.fao.org/aos/agrovoc/c_5271 http://aims.fao.org/aos/agrovoc/c_7166 http://aims.fao.org/aos/agrovoc/c_6520 http://aims.fao.org/aos/agrovoc/c_5848 |
author |
Rufyikiri, Gervais Dufey, Joseph E. Achard, Raphaël Delvaux, Bruno |
author_facet |
Rufyikiri, Gervais Dufey, Joseph E. Achard, Raphaël Delvaux, Bruno |
author_sort |
Rufyikiri, Gervais |
title |
Cation exchange capacity and aluminum-calcium-magnesium binding in roots of bananas cultivated in soils and in nutrient solutions |
title_short |
Cation exchange capacity and aluminum-calcium-magnesium binding in roots of bananas cultivated in soils and in nutrient solutions |
title_full |
Cation exchange capacity and aluminum-calcium-magnesium binding in roots of bananas cultivated in soils and in nutrient solutions |
title_fullStr |
Cation exchange capacity and aluminum-calcium-magnesium binding in roots of bananas cultivated in soils and in nutrient solutions |
title_full_unstemmed |
Cation exchange capacity and aluminum-calcium-magnesium binding in roots of bananas cultivated in soils and in nutrient solutions |
title_sort |
cation exchange capacity and aluminum-calcium-magnesium binding in roots of bananas cultivated in soils and in nutrient solutions |
url |
http://agritrop.cirad.fr/509354/ http://agritrop.cirad.fr/509354/1/509354.pdf |
work_keys_str_mv |
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