Effects of substrate type on plant growth and nitrogen and nitrate concentration in spinach
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10174/19652 |
Resumo: | Abstract The effects of three commercial substrates (a mixture of forest residues, composted grape husks, and white peat, black peat and coir) on plant growth and nitrogen (N) and nitrate (NO3) concentration and content were evaluated in spinach (Spinacia oleracea L. cv. Tapir). Spinach seedlings were transplanted at 45 days after emergence into Styrofoam boxes filled with the substrates and were grown during winter and early spring in an unheated greenhouse with no supplemental lighting. Each planting box was irrigated daily by drip and fertilized with a complete nutrient solution. The NO3 content of the drainage water was lower in coir than in the other substrates. However, shoot NO3 concentration was not affected by substrate type, while yield and total shoot N and NO3 content were greater when plants were grown in peat than in the mixed substrate or the coir. Leaf chlorophyll meter readings provided a good indication of the amount of N in the plants and increased linearly with total shoot N. Keywords Spinacia oleracea; chlorophyll meter; coir; peat; soilless culture systems |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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7160 |
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Effects of substrate type on plant growth and nitrogen and nitrate concentration in spinachSpinacia oleracea;chlorophyll meter;Espinafrecultura sem solonitratenitratoAbstract The effects of three commercial substrates (a mixture of forest residues, composted grape husks, and white peat, black peat and coir) on plant growth and nitrogen (N) and nitrate (NO3) concentration and content were evaluated in spinach (Spinacia oleracea L. cv. Tapir). Spinach seedlings were transplanted at 45 days after emergence into Styrofoam boxes filled with the substrates and were grown during winter and early spring in an unheated greenhouse with no supplemental lighting. Each planting box was irrigated daily by drip and fertilized with a complete nutrient solution. The NO3 content of the drainage water was lower in coir than in the other substrates. However, shoot NO3 concentration was not affected by substrate type, while yield and total shoot N and NO3 content were greater when plants were grown in peat than in the mixed substrate or the coir. Leaf chlorophyll meter readings provided a good indication of the amount of N in the plants and increased linearly with total shoot N. Keywords Spinacia oleracea; chlorophyll meter; coir; peat; soilless culture systemsInternational Journal of Plant Biology2017-01-10T12:03:25Z2017-01-102016-11-24T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10174/19652http://hdl.handle.net/10174/19652porhttp://www.pagepress.org/journals/index.php/pb/article/view/6325Fitotecniandrmam@uevora.ptiap@uevora.ptraf@uevora.ptnd58210:408l/pb.2016.6328Barcelos, CarinaMachado, RuiFerreira, Isabel AlvesFerreia, RuiBryla, Davidinfo: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:RCAAP2024-01-03T19:08:36Zoai:dspace.uevora.pt:10174/19652Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T01:11:09.311520Repositório 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 |
Effects of substrate type on plant growth and nitrogen and nitrate concentration in spinach |
title |
Effects of substrate type on plant growth and nitrogen and nitrate concentration in spinach |
spellingShingle |
Effects of substrate type on plant growth and nitrogen and nitrate concentration in spinach Barcelos, Carina Spinacia oleracea; chlorophyll meter; Espinafre cultura sem solo nitrate nitrato |
title_short |
Effects of substrate type on plant growth and nitrogen and nitrate concentration in spinach |
title_full |
Effects of substrate type on plant growth and nitrogen and nitrate concentration in spinach |
title_fullStr |
Effects of substrate type on plant growth and nitrogen and nitrate concentration in spinach |
title_full_unstemmed |
Effects of substrate type on plant growth and nitrogen and nitrate concentration in spinach |
title_sort |
Effects of substrate type on plant growth and nitrogen and nitrate concentration in spinach |
author |
Barcelos, Carina |
author_facet |
Barcelos, Carina Machado, Rui Ferreira, Isabel Alves Ferreia, Rui Bryla, David |
author_role |
author |
author2 |
Machado, Rui Ferreira, Isabel Alves Ferreia, Rui Bryla, David |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Barcelos, Carina Machado, Rui Ferreira, Isabel Alves Ferreia, Rui Bryla, David |
dc.subject.por.fl_str_mv |
Spinacia oleracea; chlorophyll meter; Espinafre cultura sem solo nitrate nitrato |
topic |
Spinacia oleracea; chlorophyll meter; Espinafre cultura sem solo nitrate nitrato |
description |
Abstract The effects of three commercial substrates (a mixture of forest residues, composted grape husks, and white peat, black peat and coir) on plant growth and nitrogen (N) and nitrate (NO3) concentration and content were evaluated in spinach (Spinacia oleracea L. cv. Tapir). Spinach seedlings were transplanted at 45 days after emergence into Styrofoam boxes filled with the substrates and were grown during winter and early spring in an unheated greenhouse with no supplemental lighting. Each planting box was irrigated daily by drip and fertilized with a complete nutrient solution. The NO3 content of the drainage water was lower in coir than in the other substrates. However, shoot NO3 concentration was not affected by substrate type, while yield and total shoot N and NO3 content were greater when plants were grown in peat than in the mixed substrate or the coir. Leaf chlorophyll meter readings provided a good indication of the amount of N in the plants and increased linearly with total shoot N. Keywords Spinacia oleracea; chlorophyll meter; coir; peat; soilless culture systems |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-11-24T00:00:00Z 2017-01-10T12:03:25Z 2017-01-10 |
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/10174/19652 http://hdl.handle.net/10174/19652 |
url |
http://hdl.handle.net/10174/19652 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
http://www.pagepress.org/journals/index.php/pb/article/view/6325 Fitotecnia nd rmam@uevora.pt iap@uevora.pt raf@uevora.pt nd 582 10:408l/pb.2016.6328 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
International Journal of Plant Biology |
publisher.none.fl_str_mv |
International Journal of Plant Biology |
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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1799136593406066688 |