Yield and postharvest quality of winter growing crisphead lettuce as affected by doses of nitrogen and molybdenum

Detalhes bibliográficos
Autor(a) principal: Resende, Geraldo M. de
Data de Publicação: 2010
Outros Autores: Alvarenga, Marco Antônio R., Yuri, Jony E., Souza, Rovilson José de
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFLA
Texto Completo: http://repositorio.ufla.br/jspui/handle/1/43424
Resumo: The trial was carried out at Três Pontas, Minas Gerais State, Brazil, from April to July 2003, to evaluate the influence of nitrogen and molybdenum rates on productive characteristics and postharvest quality of crisphead lettuce (Lactuca sativa L.). A randomized complete block design with three replications was used. Treatments were a factorial combination of four nitrogen rates (0.0; 60.0; 120.0 and 180.0 kg ha-1) applied in additional the dose commonly used by growers (60 kg ha-1 of N) and five foliar molybdenum rates (0.0; 35.1; 70.2; 105.3 and 140.4 g ha-1). The total and commercial fresh weight and head circumference showed significant effects for doses of nitrogen and of molybdenum, as well as for their interaction. No significant effects of the treatments for stem length were observed. There was a linear effect of N and Mo doses for postharvest conservation at 28 days, and the rate of 150.0 kg ha-1 of N showed the best conservation at 35 days after the harvest. The percentage of dry matter showed quadratic effects, and the doses of 95.9 kg ha-1 of N and 75.3 kg ha-1 of Mo showed the highest return.
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spelling Yield and postharvest quality of winter growing crisphead lettuce as affected by doses of nitrogen and molybdenumRendimento e qualidade pós-colheita de alface americana em função de doses de nitrogênio e molibdênioLactuca sativa L.Massa frescaNutriçãoArmazenamentoFresh weightNutritionStorageThe trial was carried out at Três Pontas, Minas Gerais State, Brazil, from April to July 2003, to evaluate the influence of nitrogen and molybdenum rates on productive characteristics and postharvest quality of crisphead lettuce (Lactuca sativa L.). A randomized complete block design with three replications was used. Treatments were a factorial combination of four nitrogen rates (0.0; 60.0; 120.0 and 180.0 kg ha-1) applied in additional the dose commonly used by growers (60 kg ha-1 of N) and five foliar molybdenum rates (0.0; 35.1; 70.2; 105.3 and 140.4 g ha-1). The total and commercial fresh weight and head circumference showed significant effects for doses of nitrogen and of molybdenum, as well as for their interaction. No significant effects of the treatments for stem length were observed. There was a linear effect of N and Mo doses for postharvest conservation at 28 days, and the rate of 150.0 kg ha-1 of N showed the best conservation at 35 days after the harvest. The percentage of dry matter showed quadratic effects, and the doses of 95.9 kg ha-1 of N and 75.3 kg ha-1 of Mo showed the highest return.O trabalho foi conduzido no município de Três Pontas, Sul de Minas Gerais, de abril a julho de 2003, com o objetivo de avaliar a influência de doses de nitrogênio e molibdênio nas características produtivas e qualidade pós-colheita da alface tipo americana (Lactuca sativa L.). Utilizou-se o delineamento de blocos ao acaso em arranjo fatorial 4x5, compreendendo quatro doses de nitrogênio em cobertura adicionais à dose aplicada pelo produtor de 60 kg/ha de N (0; 60; 120 e 180 kg ha-1) e cinco doses de molibdênio via foliar (0,0; 35,1; 70,2; 105,3 e 140,4 g ha-1) com três repetições. As massas fresca total e comercial e a circunferência da cabeça evidenciaram efeitos significativos para doses de nitrogênio em cobertura e de molibdênio, assim como para sua interação. Não se observou efeito significativo dos tratamentos para comprimento do caule. Houve uma resposta linear para doses de N e Mo para conservação pós-colheita aos 28 dias, sendo que a dose de 150,0 kg ha-1 de N em cobertura promoveu a melhor conservação aos 35 dias após a colheita. A dose de 95,9 kg ha-1 de N em cobertura e a dose 75,3 kg ha-1 de Mo propiciariam o maior retorno em termos de percentagem de massa seca.Associação Brasileira de Horticultura (ABH)2020-10-15T23:03:27Z2020-10-15T23:03:27Z2010-12info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfRESENDE, G. M. de et al. Yield and postharvest quality of winter growing crisphead lettuce as affected by doses of nitrogen and molybdenum. Horticultura Brasileira, Brasília, DF, v. 28, n. 4, p. 441-445, 2010. DOI: 10.1590/S0102-05362010000400011.http://repositorio.ufla.br/jspui/handle/1/43424Horticultura Brasileirareponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAhttp://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccessResende, Geraldo M. deAlvarenga, Marco Antônio R.Yuri, Jony E.Souza, Rovilson José deeng2023-05-26T18:52:54Zoai:localhost:1/43424Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2023-05-26T18:52:54Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false
dc.title.none.fl_str_mv Yield and postharvest quality of winter growing crisphead lettuce as affected by doses of nitrogen and molybdenum
Rendimento e qualidade pós-colheita de alface americana em função de doses de nitrogênio e molibdênio
title Yield and postharvest quality of winter growing crisphead lettuce as affected by doses of nitrogen and molybdenum
spellingShingle Yield and postharvest quality of winter growing crisphead lettuce as affected by doses of nitrogen and molybdenum
Resende, Geraldo M. de
Lactuca sativa L.
Massa fresca
Nutrição
Armazenamento
Fresh weight
Nutrition
Storage
title_short Yield and postharvest quality of winter growing crisphead lettuce as affected by doses of nitrogen and molybdenum
title_full Yield and postharvest quality of winter growing crisphead lettuce as affected by doses of nitrogen and molybdenum
title_fullStr Yield and postharvest quality of winter growing crisphead lettuce as affected by doses of nitrogen and molybdenum
title_full_unstemmed Yield and postharvest quality of winter growing crisphead lettuce as affected by doses of nitrogen and molybdenum
title_sort Yield and postharvest quality of winter growing crisphead lettuce as affected by doses of nitrogen and molybdenum
author Resende, Geraldo M. de
author_facet Resende, Geraldo M. de
Alvarenga, Marco Antônio R.
Yuri, Jony E.
Souza, Rovilson José de
author_role author
author2 Alvarenga, Marco Antônio R.
Yuri, Jony E.
Souza, Rovilson José de
author2_role author
author
author
dc.contributor.author.fl_str_mv Resende, Geraldo M. de
Alvarenga, Marco Antônio R.
Yuri, Jony E.
Souza, Rovilson José de
dc.subject.por.fl_str_mv Lactuca sativa L.
Massa fresca
Nutrição
Armazenamento
Fresh weight
Nutrition
Storage
topic Lactuca sativa L.
Massa fresca
Nutrição
Armazenamento
Fresh weight
Nutrition
Storage
description The trial was carried out at Três Pontas, Minas Gerais State, Brazil, from April to July 2003, to evaluate the influence of nitrogen and molybdenum rates on productive characteristics and postharvest quality of crisphead lettuce (Lactuca sativa L.). A randomized complete block design with three replications was used. Treatments were a factorial combination of four nitrogen rates (0.0; 60.0; 120.0 and 180.0 kg ha-1) applied in additional the dose commonly used by growers (60 kg ha-1 of N) and five foliar molybdenum rates (0.0; 35.1; 70.2; 105.3 and 140.4 g ha-1). The total and commercial fresh weight and head circumference showed significant effects for doses of nitrogen and of molybdenum, as well as for their interaction. No significant effects of the treatments for stem length were observed. There was a linear effect of N and Mo doses for postharvest conservation at 28 days, and the rate of 150.0 kg ha-1 of N showed the best conservation at 35 days after the harvest. The percentage of dry matter showed quadratic effects, and the doses of 95.9 kg ha-1 of N and 75.3 kg ha-1 of Mo showed the highest return.
publishDate 2010
dc.date.none.fl_str_mv 2010-12
2020-10-15T23:03:27Z
2020-10-15T23:03:27Z
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 RESENDE, G. M. de et al. Yield and postharvest quality of winter growing crisphead lettuce as affected by doses of nitrogen and molybdenum. Horticultura Brasileira, Brasília, DF, v. 28, n. 4, p. 441-445, 2010. DOI: 10.1590/S0102-05362010000400011.
http://repositorio.ufla.br/jspui/handle/1/43424
identifier_str_mv RESENDE, G. M. de et al. Yield and postharvest quality of winter growing crisphead lettuce as affected by doses of nitrogen and molybdenum. Horticultura Brasileira, Brasília, DF, v. 28, n. 4, p. 441-445, 2010. DOI: 10.1590/S0102-05362010000400011.
url http://repositorio.ufla.br/jspui/handle/1/43424
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv http://creativecommons.org/licenses/by-nc/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Associação Brasileira de Horticultura (ABH)
publisher.none.fl_str_mv Associação Brasileira de Horticultura (ABH)
dc.source.none.fl_str_mv Horticultura Brasileira
reponame:Repositório Institucional da UFLA
instname:Universidade Federal de Lavras (UFLA)
instacron:UFLA
instname_str Universidade Federal de Lavras (UFLA)
instacron_str UFLA
institution UFLA
reponame_str Repositório Institucional da UFLA
collection Repositório Institucional da UFLA
repository.name.fl_str_mv Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)
repository.mail.fl_str_mv nivaldo@ufla.br || repositorio.biblioteca@ufla.br
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