Production of basic potato seed minitubers in substrate and different nitrogen rates

Detalhes bibliográficos
Autor(a) principal: Souza, Carla de Bem dos Santos
Data de Publicação: 2012
Outros Autores: Fontes, Paulo Cezar Rezende, Moreira, Marialva Alvarenga, Puiatti, Mário, Martinez, Herminia Emilia Prieto, Araújo, Roberto Fontes
Tipo de documento: Artigo
Idioma: eng
Título da fonte: LOCUS Repositório Institucional da UFV
Texto Completo: http://www.ceres.ufv.br/ojs/index.php/ceres/article/view/3932
http://www.locus.ufv.br/handle/123456789/13264
Resumo: Não consta o número do DOI, por isso foi disponibilizado o link de acesso.
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spelling Souza, Carla de Bem dos SantosFontes, Paulo Cezar RezendeMoreira, Marialva AlvarengaPuiatti, MárioMartinez, Herminia Emilia PrietoAraújo, Roberto Fontes2017-11-17T18:48:00Z2017-11-17T18:48:00Z2012-08-232177-3491http://www.ceres.ufv.br/ojs/index.php/ceres/article/view/3932http://www.locus.ufv.br/handle/123456789/13264Não consta o número do DOI, por isso foi disponibilizado o link de acesso.A dose ótima de nitrogênio (N) na cultura da batata depende do sistema de produção. O objetivo deste trabalho foi determinar a dose ótima de N para a produção de minitubérculos de batata-semente básica e avaliar o efeito de doses de N sobre índices nitrogenados e fisiológicos determinados na folha mais jovem completamente desenvolvida (quarta folha) e na folha mais velha da planta, aos 60 dias após o plantio. O experimento foi realizado em ambiente protegido, no Departamento de Fitotecnia da Universidade Federal de Viçosa. Os tratamentos foram constituídos por cinco doses de N (0, 45, 90, 180 e 360 mg dm -3 ), sendo 10% de cada dose aplicada em pré-plantio e o restante via água de irrigação, diariamente, por 30 dias. As doses de N influenciaram positivamente os índices fisiológicos (comprimento, largura, área foliar, número de folíolos, massas de matérias fresca e seca) e nitrogenados (teor e conteúdo de N e N-NO 3 na matéria seca e índice SPAD) tanto na quarta folha quanto na folha velha. Da mesma forma, doses de N influenciaram positivamente o número e a massa de tubérculos colhidos. O maior número (5,44 tubérculos/planta) e a máxima massa de tubérculos (243,5 g/planta) foram obtidos com 360,0 e 332,9 mg dm -3 de N, respectivamente. Portanto, número e massa de tubérculos não foram otimizados pela mesma dose de N. O índice crítico SPAD na quarta folha foi 38,8, sendo essa mais sensível ao efeito de doses de N do que a folha mais velha.The optimal dose of nitrogen (N) in potato crop depends on the production system. The objective of this study was to determine the optimal dose of N for the production of basic potato seed minitubers and evaluate the effect of N rates on physiological and nitrogen indices in the youngest fully developed leaf (fourth leaf) and in the oldest leaf of the plants at 60 days after planting. The experiment was conducted in a greenhouse at the Departamento de Fitotecnia da Universidade Federal de Viçosa. The treatments consisted of five N rates (0, 45, 90, 180 and 360 mg dm -3 ), with 10% of each dose applied at planting and the remainder through irrigation water, daily, for 30 days. The nitrogen rates positively influenced the physiological indices (length, width, leaf area, number of leaves, fresh mass and dry mass) and nitrogen (level and content of N and N-NO 3 in the dry mass and SPAD) both in the fourth leaf and in the oldest leaf. Likewise, the N rates positively influenced the number and mass of harvested tubers. The largest number (5.44 tubers/plant) and the maximum mass of tubers (243.5 g/plant) were obtained with 360.0 and 332.9 mg N dm -3 , respectively. Therefore, the mass and number of tubers were not optimized by the same N rate. The critical SPAD index was 38.8 in the fourth leaf, which was more sensitive to the effect of N rates than the oldest leaf.engRevista Ceresv. 59, n. 6, p. 850-858, nov./dez. 2012Solanum tuberosum L.PropagationDiagnosisChlorophyll meterNutritionVaseProduction of basic potato seed minitubers in substrate and different nitrogen ratesinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfinfo:eu-repo/semantics/openAccessreponame:LOCUS Repositório Institucional da UFVinstname:Universidade Federal de Viçosa (UFV)instacron:UFVORIGINAL3932-5676-1-PB.pdf3932-5676-1-PB.pdftexto completoapplication/pdf121827https://locus.ufv.br//bitstream/123456789/13264/1/3932-5676-1-PB.pdfff248d0d54ce661ff54c7b78f1b54a66MD51LICENSElicense.txtlicense.txttext/plain; charset=utf-81748https://locus.ufv.br//bitstream/123456789/13264/2/license.txt8a4605be74aa9ea9d79846c1fba20a33MD52THUMBNAIL3932-5676-1-PB.pdf.jpg3932-5676-1-PB.pdf.jpgIM Thumbnailimage/jpeg4838https://locus.ufv.br//bitstream/123456789/13264/3/3932-5676-1-PB.pdf.jpg27fb9a12e6d90f8fc912189478d7ab0dMD53123456789/132642017-11-17 22:00:39.331oai:locus.ufv.br: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Repositório InstitucionalPUBhttps://www.locus.ufv.br/oai/requestfabiojreis@ufv.bropendoar:21452017-11-18T01:00:39LOCUS Repositório Institucional da UFV - Universidade Federal de Viçosa (UFV)false
dc.title.en.fl_str_mv Production of basic potato seed minitubers in substrate and different nitrogen rates
title Production of basic potato seed minitubers in substrate and different nitrogen rates
spellingShingle Production of basic potato seed minitubers in substrate and different nitrogen rates
Souza, Carla de Bem dos Santos
Solanum tuberosum L.
Propagation
Diagnosis
Chlorophyll meter
Nutrition
Vase
title_short Production of basic potato seed minitubers in substrate and different nitrogen rates
title_full Production of basic potato seed minitubers in substrate and different nitrogen rates
title_fullStr Production of basic potato seed minitubers in substrate and different nitrogen rates
title_full_unstemmed Production of basic potato seed minitubers in substrate and different nitrogen rates
title_sort Production of basic potato seed minitubers in substrate and different nitrogen rates
author Souza, Carla de Bem dos Santos
author_facet Souza, Carla de Bem dos Santos
Fontes, Paulo Cezar Rezende
Moreira, Marialva Alvarenga
Puiatti, Mário
Martinez, Herminia Emilia Prieto
Araújo, Roberto Fontes
author_role author
author2 Fontes, Paulo Cezar Rezende
Moreira, Marialva Alvarenga
Puiatti, Mário
Martinez, Herminia Emilia Prieto
Araújo, Roberto Fontes
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Souza, Carla de Bem dos Santos
Fontes, Paulo Cezar Rezende
Moreira, Marialva Alvarenga
Puiatti, Mário
Martinez, Herminia Emilia Prieto
Araújo, Roberto Fontes
dc.subject.pt-BR.fl_str_mv Solanum tuberosum L.
Propagation
Diagnosis
Chlorophyll meter
Nutrition
Vase
topic Solanum tuberosum L.
Propagation
Diagnosis
Chlorophyll meter
Nutrition
Vase
description Não consta o número do DOI, por isso foi disponibilizado o link de acesso.
publishDate 2012
dc.date.issued.fl_str_mv 2012-08-23
dc.date.accessioned.fl_str_mv 2017-11-17T18:48:00Z
dc.date.available.fl_str_mv 2017-11-17T18:48:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
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status_str publishedVersion
dc.identifier.uri.fl_str_mv http://www.ceres.ufv.br/ojs/index.php/ceres/article/view/3932
http://www.locus.ufv.br/handle/123456789/13264
dc.identifier.issn.none.fl_str_mv 2177-3491
identifier_str_mv 2177-3491
url http://www.ceres.ufv.br/ojs/index.php/ceres/article/view/3932
http://www.locus.ufv.br/handle/123456789/13264
dc.language.iso.fl_str_mv eng
language eng
dc.relation.ispartofseries.pt-BR.fl_str_mv v. 59, n. 6, p. 850-858, nov./dez. 2012
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
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