Rapid Sap Nutrient Analysis Methods in Malus Domestica Borkh Cv. ‘Gala’
Autor(a) principal: | |
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Data de Publicação: | 2020 |
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/10400.5/21878 |
Resumo: | Sap quick tests are well established in vegetable crops. However, there is less equivalent investigation for perennial crops, such as apple trees. Accessing the nutrient content, as opposed to the foliar analysis, would increase the opportunity of adjusting the fertilization, along the growing cycle. This work evaluates the relation between the NO3 −, K+, Ca2+, Mg2+, PO4 3- and NH4 + contents in apple petiole sap, measured with the RQflex® test strips and laboratory methods to assess the possibility of using this tool with accuracy in in-situ sap analysis. Petiole samples were collected from six apple tree orchards, frozen and pressed. Dilution was mandatory for all nutrient determination, except NO3 −. The dilution factor varied with the stage of the annual cycle. The levels of NO3 −, K+, Mg2+, and Ca2+ followed the same pattern during the growing cycle, with both methods. Regression analysis resulted in high determination coefficients for NO3 − (R2 = 0.85), K+ (R2 = 0.86), Mg2+ (R2 = 0.81) and Ca2+ (R2 = 0.95), between RQflex® and laboratory methods. No equivalent relation was found for ammonium and phosphate determination. These tests can be useful tools for rational fertilization management, mainly in high-density apple orchards. The calcium content in 45 DAFB leaves correlated well with the calcium content in sap at the same timing |
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Rapid Sap Nutrient Analysis Methods in Malus Domestica Borkh Cv. ‘Gala’calciummagnesiumnitratepotassiumdiagnostic methodsSap quick tests are well established in vegetable crops. However, there is less equivalent investigation for perennial crops, such as apple trees. Accessing the nutrient content, as opposed to the foliar analysis, would increase the opportunity of adjusting the fertilization, along the growing cycle. This work evaluates the relation between the NO3 −, K+, Ca2+, Mg2+, PO4 3- and NH4 + contents in apple petiole sap, measured with the RQflex® test strips and laboratory methods to assess the possibility of using this tool with accuracy in in-situ sap analysis. Petiole samples were collected from six apple tree orchards, frozen and pressed. Dilution was mandatory for all nutrient determination, except NO3 −. The dilution factor varied with the stage of the annual cycle. The levels of NO3 −, K+, Mg2+, and Ca2+ followed the same pattern during the growing cycle, with both methods. Regression analysis resulted in high determination coefficients for NO3 − (R2 = 0.85), K+ (R2 = 0.86), Mg2+ (R2 = 0.81) and Ca2+ (R2 = 0.95), between RQflex® and laboratory methods. No equivalent relation was found for ammonium and phosphate determination. These tests can be useful tools for rational fertilization management, mainly in high-density apple orchards. The calcium content in 45 DAFB leaves correlated well with the calcium content in sap at the same timingTaylor & FrancisRepositório da Universidade de LisboaAlmeida, Patrícia da CostaOliveira, Cristina MonizMota, MarianaRibeiro, Henrique2021-09-21T09:46:17Z20202020-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.5/21878engPatrícia da Costa Almeida, Cristina Oliveira, Mariana Mota & Henrique Ribeiro (2020) Rapid Sap Nutrient Analysis Methods in Malus Domestica Borkh Cv. ‘Gala’, Communications in Soil Science and Plant Analysis, 51:12, 1693-170610.1080/00103624.2020.1791160info: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:RCAAP2023-03-06T14:51:25Zoai:www.repository.utl.pt:10400.5/21878Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T17:06:25.278850Repositório 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 |
Rapid Sap Nutrient Analysis Methods in Malus Domestica Borkh Cv. ‘Gala’ |
title |
Rapid Sap Nutrient Analysis Methods in Malus Domestica Borkh Cv. ‘Gala’ |
spellingShingle |
Rapid Sap Nutrient Analysis Methods in Malus Domestica Borkh Cv. ‘Gala’ Almeida, Patrícia da Costa calcium magnesium nitrate potassium diagnostic methods |
title_short |
Rapid Sap Nutrient Analysis Methods in Malus Domestica Borkh Cv. ‘Gala’ |
title_full |
Rapid Sap Nutrient Analysis Methods in Malus Domestica Borkh Cv. ‘Gala’ |
title_fullStr |
Rapid Sap Nutrient Analysis Methods in Malus Domestica Borkh Cv. ‘Gala’ |
title_full_unstemmed |
Rapid Sap Nutrient Analysis Methods in Malus Domestica Borkh Cv. ‘Gala’ |
title_sort |
Rapid Sap Nutrient Analysis Methods in Malus Domestica Borkh Cv. ‘Gala’ |
author |
Almeida, Patrícia da Costa |
author_facet |
Almeida, Patrícia da Costa Oliveira, Cristina Moniz Mota, Mariana Ribeiro, Henrique |
author_role |
author |
author2 |
Oliveira, Cristina Moniz Mota, Mariana Ribeiro, Henrique |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Repositório da Universidade de Lisboa |
dc.contributor.author.fl_str_mv |
Almeida, Patrícia da Costa Oliveira, Cristina Moniz Mota, Mariana Ribeiro, Henrique |
dc.subject.por.fl_str_mv |
calcium magnesium nitrate potassium diagnostic methods |
topic |
calcium magnesium nitrate potassium diagnostic methods |
description |
Sap quick tests are well established in vegetable crops. However, there is less equivalent investigation for perennial crops, such as apple trees. Accessing the nutrient content, as opposed to the foliar analysis, would increase the opportunity of adjusting the fertilization, along the growing cycle. This work evaluates the relation between the NO3 −, K+, Ca2+, Mg2+, PO4 3- and NH4 + contents in apple petiole sap, measured with the RQflex® test strips and laboratory methods to assess the possibility of using this tool with accuracy in in-situ sap analysis. Petiole samples were collected from six apple tree orchards, frozen and pressed. Dilution was mandatory for all nutrient determination, except NO3 −. The dilution factor varied with the stage of the annual cycle. The levels of NO3 −, K+, Mg2+, and Ca2+ followed the same pattern during the growing cycle, with both methods. Regression analysis resulted in high determination coefficients for NO3 − (R2 = 0.85), K+ (R2 = 0.86), Mg2+ (R2 = 0.81) and Ca2+ (R2 = 0.95), between RQflex® and laboratory methods. No equivalent relation was found for ammonium and phosphate determination. These tests can be useful tools for rational fertilization management, mainly in high-density apple orchards. The calcium content in 45 DAFB leaves correlated well with the calcium content in sap at the same timing |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020 2020-01-01T00:00:00Z 2021-09-21T09:46:17Z |
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/10400.5/21878 |
url |
http://hdl.handle.net/10400.5/21878 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Patrícia da Costa Almeida, Cristina Oliveira, Mariana Mota & Henrique Ribeiro (2020) Rapid Sap Nutrient Analysis Methods in Malus Domestica Borkh Cv. ‘Gala’, Communications in Soil Science and Plant Analysis, 51:12, 1693-1706 10.1080/00103624.2020.1791160 |
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.publisher.none.fl_str_mv |
Taylor & Francis |
publisher.none.fl_str_mv |
Taylor & Francis |
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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1817552710677823488 |