Relationships between nutrient composition of flowers and fruit quality in orange trees grown in calcareous soil
Autor(a) principal: | |
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Data de Publicação: | 2005 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10400.1/2039 |
Resumo: | A field experiment was conducted in a commercial orange orchard (Citrus sinensis (L.) Osb. cv. ‘Valencia late’ grafted on Citrange Troyer) established on a calcareous soil in the south of Portugal, to investigate if flower analysis could be used to predict fruit quality. In April 1996, during full bloom, flowers were collected from 20 trees. In March 1997 the fruits were harvested and their quality evaluated. This procedure was repeated every year during three years. Principal Component Analysis was used to evaluate the patterns of covariation in the concentrations of nutrients in flowers and in fruit quality parameters. Stepwise selection procedures wer then used to develop regression models relating fruit quality parameters to the mineral composition of flowers. The predictive power of the regression models was evaluated using an independent set of data. The mineral composition of flowers at full bloom could be used to predict quality parameters of fruit in the following year, namely fruit fresh weight and the maturation index. Magnesium, Ca and Zn registered in flowers were related to fruit fresh weight estimations and N, P, Mg and Fe were related to fruit maturation index. Reference values were determined for the mineral composition of flowers, corresponding to trees where fruits had a diameter > 76 mm. |
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Relationships between nutrient composition of flowers and fruit quality in orange trees grown in calcareous soilSoloCitrusIron ChlorosisFloral AnalysisModelsNutrientsPrincipal Component AnalysisA field experiment was conducted in a commercial orange orchard (Citrus sinensis (L.) Osb. cv. ‘Valencia late’ grafted on Citrange Troyer) established on a calcareous soil in the south of Portugal, to investigate if flower analysis could be used to predict fruit quality. In April 1996, during full bloom, flowers were collected from 20 trees. In March 1997 the fruits were harvested and their quality evaluated. This procedure was repeated every year during three years. Principal Component Analysis was used to evaluate the patterns of covariation in the concentrations of nutrients in flowers and in fruit quality parameters. Stepwise selection procedures wer then used to develop regression models relating fruit quality parameters to the mineral composition of flowers. The predictive power of the regression models was evaluated using an independent set of data. The mineral composition of flowers at full bloom could be used to predict quality parameters of fruit in the following year, namely fruit fresh weight and the maturation index. Magnesium, Ca and Zn registered in flowers were related to fruit fresh weight estimations and N, P, Mg and Fe were related to fruit maturation index. Reference values were determined for the mineral composition of flowers, corresponding to trees where fruits had a diameter > 76 mm.SapientiaPestana, M.Beja, PedroCorreia, P. J.Varennes, Amarilis deFaria, E. A.2012-12-19T12:50:32Z20052012-12-17T14:37:46Z2005-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.1/2039engPestana, M.; Beja, P.; Correia, P. J.; De Varennes, A.; Faria, E. A. Relationships between nutrient composition of flowers and fruit quality in orange trees grown in calcareous soil, Tree Physiology, 25, 6, 761-767, 2005.0829-318XAU: PCO01134;info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-24T10:13:05Zoai:sapientia.ualg.pt:10400.1/2039Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:56:00.325237Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Relationships between nutrient composition of flowers and fruit quality in orange trees grown in calcareous soil |
title |
Relationships between nutrient composition of flowers and fruit quality in orange trees grown in calcareous soil |
spellingShingle |
Relationships between nutrient composition of flowers and fruit quality in orange trees grown in calcareous soil Pestana, M. Solo Citrus Iron Chlorosis Floral Analysis Models Nutrients Principal Component Analysis |
title_short |
Relationships between nutrient composition of flowers and fruit quality in orange trees grown in calcareous soil |
title_full |
Relationships between nutrient composition of flowers and fruit quality in orange trees grown in calcareous soil |
title_fullStr |
Relationships between nutrient composition of flowers and fruit quality in orange trees grown in calcareous soil |
title_full_unstemmed |
Relationships between nutrient composition of flowers and fruit quality in orange trees grown in calcareous soil |
title_sort |
Relationships between nutrient composition of flowers and fruit quality in orange trees grown in calcareous soil |
author |
Pestana, M. |
author_facet |
Pestana, M. Beja, Pedro Correia, P. J. Varennes, Amarilis de Faria, E. A. |
author_role |
author |
author2 |
Beja, Pedro Correia, P. J. Varennes, Amarilis de Faria, E. A. |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Sapientia |
dc.contributor.author.fl_str_mv |
Pestana, M. Beja, Pedro Correia, P. J. Varennes, Amarilis de Faria, E. A. |
dc.subject.por.fl_str_mv |
Solo Citrus Iron Chlorosis Floral Analysis Models Nutrients Principal Component Analysis |
topic |
Solo Citrus Iron Chlorosis Floral Analysis Models Nutrients Principal Component Analysis |
description |
A field experiment was conducted in a commercial orange orchard (Citrus sinensis (L.) Osb. cv. ‘Valencia late’ grafted on Citrange Troyer) established on a calcareous soil in the south of Portugal, to investigate if flower analysis could be used to predict fruit quality. In April 1996, during full bloom, flowers were collected from 20 trees. In March 1997 the fruits were harvested and their quality evaluated. This procedure was repeated every year during three years. Principal Component Analysis was used to evaluate the patterns of covariation in the concentrations of nutrients in flowers and in fruit quality parameters. Stepwise selection procedures wer then used to develop regression models relating fruit quality parameters to the mineral composition of flowers. The predictive power of the regression models was evaluated using an independent set of data. The mineral composition of flowers at full bloom could be used to predict quality parameters of fruit in the following year, namely fruit fresh weight and the maturation index. Magnesium, Ca and Zn registered in flowers were related to fruit fresh weight estimations and N, P, Mg and Fe were related to fruit maturation index. Reference values were determined for the mineral composition of flowers, corresponding to trees where fruits had a diameter > 76 mm. |
publishDate |
2005 |
dc.date.none.fl_str_mv |
2005 2005-01-01T00:00:00Z 2012-12-19T12:50:32Z 2012-12-17T14:37:46Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10400.1/2039 |
url |
http://hdl.handle.net/10400.1/2039 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Pestana, M.; Beja, P.; Correia, P. J.; De Varennes, A.; Faria, E. A. Relationships between nutrient composition of flowers and fruit quality in orange trees grown in calcareous soil, Tree Physiology, 25, 6, 761-767, 2005. 0829-318X AU: PCO01134; |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799133164822593536 |