Defoliation and S nutrition on radish: growth, polyphenols and antiradical activity

Defoliation and S nutrition on radish: growth, polyphenols and antiradical activity

ABSTRACT Experiments were carried out to study patterns of artificial defoliation in radish in combination with sulphur (S) fertilization, to evaluate the contribution of younger and older leaves on plant growth and phenolics accumulation in storage roots. Biomass accumulation and partitioning were related to leaf age, magnitude and timing of the clipping treatments. Older leaves increased biomass production and translocation into the storage organ; besides, they induced higher accumulation of phenolic compounds compared to the younger leaves. The highest S fertilization rate (120 kg ha-1) significantly enhanced the polyphenols accumulation, as well as the antiradical activity. The modulation of S inputs in combination with slightly induced stress from defoliation could effectively enhance the concentration of some important phytochemicals, providing higher nutritionally improved vegetables, without affecting yield.

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Main Authors: Stagnari,Fabio, Galieni,Angelica, D’Egidio,Sara, Pagnani,Giancarlo, Ficcadenti,Nadia, Pisante,Michele
Format: Digital revista
Language:English
Published: Associação Brasileira de Horticultura 2018
Online Access:http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362018000300313
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spelling oai:scielo:S0102-053620180003003132019-04-09Defoliation and S nutrition on radish: growth, polyphenols and antiradical activityStagnari,FabioGalieni,AngelicaD’Egidio,SaraPagnani,GiancarloFiccadenti,NadiaPisante,Michele Raphanus sativus biomass partitioning phenolic compounds sulphur fertilization ABSTRACT Experiments were carried out to study patterns of artificial defoliation in radish in combination with sulphur (S) fertilization, to evaluate the contribution of younger and older leaves on plant growth and phenolics accumulation in storage roots. Biomass accumulation and partitioning were related to leaf age, magnitude and timing of the clipping treatments. Older leaves increased biomass production and translocation into the storage organ; besides, they induced higher accumulation of phenolic compounds compared to the younger leaves. The highest S fertilization rate (120 kg ha-1) significantly enhanced the polyphenols accumulation, as well as the antiradical activity. The modulation of S inputs in combination with slightly induced stress from defoliation could effectively enhance the concentration of some important phytochemicals, providing higher nutritionally improved vegetables, without affecting yield.info:eu-repo/semantics/openAccessAssociação Brasileira de HorticulturaHorticultura Brasileira v.36 n.3 20182018-09-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362018000300313en10.1590/s0102-053620180305
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countrycode BR
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libraryname SciELO
language English
format Digital
author Stagnari,Fabio
Galieni,Angelica
D’Egidio,Sara
Pagnani,Giancarlo
Ficcadenti,Nadia
Pisante,Michele
spellingShingle Stagnari,Fabio
Galieni,Angelica
D’Egidio,Sara
Pagnani,Giancarlo
Ficcadenti,Nadia
Pisante,Michele
Defoliation and S nutrition on radish: growth, polyphenols and antiradical activity
author_facet Stagnari,Fabio
Galieni,Angelica
D’Egidio,Sara
Pagnani,Giancarlo
Ficcadenti,Nadia
Pisante,Michele
author_sort Stagnari,Fabio
title Defoliation and S nutrition on radish: growth, polyphenols and antiradical activity
title_short Defoliation and S nutrition on radish: growth, polyphenols and antiradical activity
title_full Defoliation and S nutrition on radish: growth, polyphenols and antiradical activity
title_fullStr Defoliation and S nutrition on radish: growth, polyphenols and antiradical activity
title_full_unstemmed Defoliation and S nutrition on radish: growth, polyphenols and antiradical activity
title_sort defoliation and s nutrition on radish: growth, polyphenols and antiradical activity
description ABSTRACT Experiments were carried out to study patterns of artificial defoliation in radish in combination with sulphur (S) fertilization, to evaluate the contribution of younger and older leaves on plant growth and phenolics accumulation in storage roots. Biomass accumulation and partitioning were related to leaf age, magnitude and timing of the clipping treatments. Older leaves increased biomass production and translocation into the storage organ; besides, they induced higher accumulation of phenolic compounds compared to the younger leaves. The highest S fertilization rate (120 kg ha-1) significantly enhanced the polyphenols accumulation, as well as the antiradical activity. The modulation of S inputs in combination with slightly induced stress from defoliation could effectively enhance the concentration of some important phytochemicals, providing higher nutritionally improved vegetables, without affecting yield.
publisher Associação Brasileira de Horticultura
publishDate 2018
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362018000300313
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AT degidiosara defoliationandsnutritiononradishgrowthpolyphenolsandantiradicalactivity
AT pagnanigiancarlo defoliationandsnutritiononradishgrowthpolyphenolsandantiradicalactivity
AT ficcadentinadia defoliationandsnutritiononradishgrowthpolyphenolsandantiradicalactivity
AT pisantemichele defoliationandsnutritiononradishgrowthpolyphenolsandantiradicalactivity
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