INFLUENCE OF COMPLEXING LIGANDS AND MINERAL NUTRIENTS ON ZINC FOLIAR UPTAKE AND TRANSLOCTION IN VASCULAR PLANTS

Foliar fertilization is considered as an efficient supplementary method when fertilizationviaroot system is not possible or not acceptable. In our paper Zn foliar uptake by tobacco (Nicotiana tabacumL.) and ivy (Hedera helixL.) leaves submerged in solutions spiked with65ZnCl2was studied by gamma-spe...

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Bibliographic Details
Published in:Cereal research communications 2008-06, Vol.36, p.415-418
Main Authors: PIPÍŠKA, Martin, HORNÍK, Miroslav, SEKÁČOVÁ, Jana, AUGUSTÍN, Jozef, LESNÝ, Juraj
Format: Article
Language:English
Subjects:
Fertilizers
Foliar uptake
Ivy
Leaves
Ligands
Minerals
Nutrient uptake
Plant nutrition
Plants
Zinc
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Summary:Foliar fertilization is considered as an efficient supplementary method when fertilizationviaroot system is not possible or not acceptable. In our paper Zn foliar uptake by tobacco (Nicotiana tabacumL.) and ivy (Hedera helixL.) leaves submerged in solutions spiked with65ZnCl2was studied by gamma-spectrometry. The increase of the nutrient concentration in contact solutions caused the decrease of Zn uptakevialeaf surface but the increase of Zn translocation to other part of plant organs, e.i. to non-submerged leaves and in some extents to roots of tobacco. Similarly, complexing ligands EDTA and NTA diminished total Zn absorption by detached ivy leaves as a consequence of Zn2+cations binding to negatively charged Zn-ligand complexes. However, zinc entering the leaves in the presence of complexing ligands is more efficiently translocated outside the treated area of ivy leaves. The total Zn uptake will depend on the concentration ratio [Zn]: [ligand]. This method can serve as a useful tool for optimizing of fertilization procedures and for prediction of microelements behavior in the products designated for foliar application in practice.
ISSN:0133-3720
1788-9170