Influência de diferentes cavalos e da época de colheita no teor de vitamina C na laranja natal

This paper deals with the variation of the ascorbic acid content in Natal orange as related to the type of rootstock and to the picking time. The determinations were carried out in the juice of fruits which had practically the same ratio total solids/acidity being selected only the highest values of such quotient. The results can be summaryzed as follows: 1. The rootstock has a significant influence on the vitamin C content of the scion; this influence shows two interesting aspects: first, the ascorbic acid contet itself varies as a function of the rootstock; among the three rootstocks studied the highest values were obtained on scion growing on Serra d'água orange; the lowest values were found in "limão rugoso" and "limão francês" was intermediate; the second point to be emphasyzed is the manner of variation of the ascorbic acid content in the different rootstocks: in the case of Serra d'água. the content decreases slowly whereas in "limão francês" the level remains nearly constant and suddenly falls down; finally in the case of "limão rugoso" the amount of ascorbic acid increases significantly to return to the primitive level. 2. The amount of ascorbic acid, not considering the rootstock influence, varies strongly as a function of harvesting time; for this reason the present factor must be borne in mind when sampling for the determination of ascorbic acid in orange is concerned.

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Main Authors: Gurgel,J. T. A., Leme Jr.,J., Malavolta,E., Montenegro,H.
Format: Digital revista
Language:Portuguese
Published: Universidade de São Paulo 1953
Online Access:http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761953000100011
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spelling oai:scielo:S0071-127619530001000112012-11-01Influência de diferentes cavalos e da época de colheita no teor de vitamina C na laranja natalGurgel,J. T. A.Leme Jr.,J.Malavolta,E.Montenegro,H.This paper deals with the variation of the ascorbic acid content in Natal orange as related to the type of rootstock and to the picking time. The determinations were carried out in the juice of fruits which had practically the same ratio total solids/acidity being selected only the highest values of such quotient. The results can be summaryzed as follows: 1. The rootstock has a significant influence on the vitamin C content of the scion; this influence shows two interesting aspects: first, the ascorbic acid contet itself varies as a function of the rootstock; among the three rootstocks studied the highest values were obtained on scion growing on Serra d'água orange; the lowest values were found in "limão rugoso" and "limão francês" was intermediate; the second point to be emphasyzed is the manner of variation of the ascorbic acid content in the different rootstocks: in the case of Serra d'água. the content decreases slowly whereas in "limão francês" the level remains nearly constant and suddenly falls down; finally in the case of "limão rugoso" the amount of ascorbic acid increases significantly to return to the primitive level. 2. The amount of ascorbic acid, not considering the rootstock influence, varies strongly as a function of harvesting time; for this reason the present factor must be borne in mind when sampling for the determination of ascorbic acid in orange is concerned.info:eu-repo/semantics/openAccessUniversidade de São PauloEscola Superior de AgriculturaAnais da Escola Superior de Agricultura Luiz de Queiroz v.10 19531953-01-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761953000100011pt10.1590/S0071-12761953000100011
institution SCIELO
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country Brasil
countrycode BR
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access En linea
databasecode rev-scielo-br
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region America del Sur
libraryname SciELO
language Portuguese
format Digital
author Gurgel,J. T. A.
Leme Jr.,J.
Malavolta,E.
Montenegro,H.
spellingShingle Gurgel,J. T. A.
Leme Jr.,J.
Malavolta,E.
Montenegro,H.
Influência de diferentes cavalos e da época de colheita no teor de vitamina C na laranja natal
author_facet Gurgel,J. T. A.
Leme Jr.,J.
Malavolta,E.
Montenegro,H.
author_sort Gurgel,J. T. A.
title Influência de diferentes cavalos e da época de colheita no teor de vitamina C na laranja natal
title_short Influência de diferentes cavalos e da época de colheita no teor de vitamina C na laranja natal
title_full Influência de diferentes cavalos e da época de colheita no teor de vitamina C na laranja natal
title_fullStr Influência de diferentes cavalos e da época de colheita no teor de vitamina C na laranja natal
title_full_unstemmed Influência de diferentes cavalos e da época de colheita no teor de vitamina C na laranja natal
title_sort influência de diferentes cavalos e da época de colheita no teor de vitamina c na laranja natal
description This paper deals with the variation of the ascorbic acid content in Natal orange as related to the type of rootstock and to the picking time. The determinations were carried out in the juice of fruits which had practically the same ratio total solids/acidity being selected only the highest values of such quotient. The results can be summaryzed as follows: 1. The rootstock has a significant influence on the vitamin C content of the scion; this influence shows two interesting aspects: first, the ascorbic acid contet itself varies as a function of the rootstock; among the three rootstocks studied the highest values were obtained on scion growing on Serra d'água orange; the lowest values were found in "limão rugoso" and "limão francês" was intermediate; the second point to be emphasyzed is the manner of variation of the ascorbic acid content in the different rootstocks: in the case of Serra d'água. the content decreases slowly whereas in "limão francês" the level remains nearly constant and suddenly falls down; finally in the case of "limão rugoso" the amount of ascorbic acid increases significantly to return to the primitive level. 2. The amount of ascorbic acid, not considering the rootstock influence, varies strongly as a function of harvesting time; for this reason the present factor must be borne in mind when sampling for the determination of ascorbic acid in orange is concerned.
publisher Universidade de São Paulo
publishDate 1953
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0071-12761953000100011
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AT montenegroh influenciadediferentescavalosedaepocadecolheitanoteordevitaminacnalaranjanatal
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