PHYSIOLOGICAL QUALITY OF Brachiaria SEEDS AND DRY MASS YIELD ESTIMATE UNDER DIFFERENT IRRIGATED CROP-LIVESTOCK INTEGRATION SYSTEMS

Detalhes bibliográficos
Autor(a) principal: Pariz, Cristiano Magalhães
Data de Publicação: 2010
Outros Autores: Ferreira, Roberta Leopoldo, de Sá, Marco Eustáquio, Andreotti, Marcelo, Chioderoli, Carlos Alessandro, Ribeiro, Ana Paula
Tipo de documento: Artigo
Idioma: por
Título da fonte: Pesquisa Agropecuária Tropical (Online)
Texto Completo: https://revistas.ufg.br/pat/article/view/6590
Resumo: The speed and magnitude of tropical pastures expansion in Brazil are related to the availability of quality seeds. This research aimed to evaluate the physiological quality of seeds of two Brachiaria species submitted to germination and viability tests and also estimate, for both species, the fresh and dry mass yield, under different irrigated crop-livestock integration systems. For field analysis, the experimental design was a randomized complete block, in subplots, with four intercrops in the plot (Brachiaria brizantha cv. Marandu and Brachiaria ruziziensis simultaneously established with corn and nitrogen fertilization coverage), and four forage cutting times, in the winter/spring season, in subplots, with four replications. In the laboratory, the experimental design was completely randomized, with four replications per treatment/test. The germination and viability tests indicated that B. brizantha seeds showed higher physiological quality, when compared with B. ruziziensis, while the tetrazolium test and germinated seedlings characteristics were similar. The B. ruziziensis, simultaneously intercropped with corn, was the less viable intercrop, due to the lower fresh and dry mass yield and litter deposition on the soil surface. In general, the pasture formation for the second season cultivation, intercropped with corn, was an excellent alternative for crop-livestock integration under a no-tillage system. KEY-WORDS: Controlled deterioration; accelerated aging; germination; tetrazolium; vigor.
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spelling PHYSIOLOGICAL QUALITY OF Brachiaria SEEDS AND DRY MASS YIELD ESTIMATE UNDER DIFFERENT IRRIGATED CROP-LIVESTOCK INTEGRATION SYSTEMSQUALIDADE FISIOLÓGICA DE SEMENTES DE Brachiaria E AVALIAÇÃO DA PRODUTIVIDADE DE MASSA SECA, EM DIFERENTES SISTEMAS DE INTEGRAÇÃO LAVOURA-PECUÁRIA SOB IRRIGAÇÃOControlled deteriorationaccelerated aginggerminationtetrazoliumvigorDeterioração controladaenvelhecimento aceleradogerminaçãotetrazóliovigorThe speed and magnitude of tropical pastures expansion in Brazil are related to the availability of quality seeds. This research aimed to evaluate the physiological quality of seeds of two Brachiaria species submitted to germination and viability tests and also estimate, for both species, the fresh and dry mass yield, under different irrigated crop-livestock integration systems. For field analysis, the experimental design was a randomized complete block, in subplots, with four intercrops in the plot (Brachiaria brizantha cv. Marandu and Brachiaria ruziziensis simultaneously established with corn and nitrogen fertilization coverage), and four forage cutting times, in the winter/spring season, in subplots, with four replications. In the laboratory, the experimental design was completely randomized, with four replications per treatment/test. The germination and viability tests indicated that B. brizantha seeds showed higher physiological quality, when compared with B. ruziziensis, while the tetrazolium test and germinated seedlings characteristics were similar. The B. ruziziensis, simultaneously intercropped with corn, was the less viable intercrop, due to the lower fresh and dry mass yield and litter deposition on the soil surface. In general, the pasture formation for the second season cultivation, intercropped with corn, was an excellent alternative for crop-livestock integration under a no-tillage system. KEY-WORDS: Controlled deterioration; accelerated aging; germination; tetrazolium; vigor.A velocidade e a amplitude da expansão de pastagens tropicais, no Brasil, estão associadas à disponibilidade de sementes de qualidade. Assim, objetivou-se avaliar, neste estudo, a qualidade fisiológica de sementes de duas espécies de braquiária, submetendo-as a testes de germinação e viabilidade, e, ainda, estimar, para ambas as espécies, a produtividade de massa verde e seca, em diferentes sistemas de integração lavoura-pecuária (ILP), sob irrigação. Na avaliação a campo, o arranjo experimental foi o de blocos completos casualizados, em parcelas subdivididas, alocando quatro consórcios nas parcelas (Brachiaria brizantha cv. Marandu e Brachiaria ruziziensis estabelecidas, simultaneamente, ao milho e por ocasião da adubação nitrogenada de cobertura) e quatro épocas de corte da forragem, no inverno/primavera, nas subparcelas, com quatro repetições. Em laboratório, o delineamento foi inteiramente casualizado, com quatro repetições por tratamento/teste. Os testes de germinação e viabilidade indicaram que as sementes de B. brizantha apresentaram qualidade fisiológica superior às de B. ruziziensis, enquanto o teste de tetrazólio e as características das plântulas germinadas foram semelhantes. A B. ruziziensis, consorciada simultaneamente ao milho, foi o consórcio que se mostrou menos viável, em função da menor produtividade de massa verde, massa seca e deposição de resíduos vegetais na superfície do solo. No geral, a formação de pastagem para a entressafra, por intermédio do consórcio com o milho, se mostrou excelente alternativa na integração lavoura-pecuária, sob irrigação, em sistema plantio direto. PALAVRAS-CHAVE: Deterioração controlada; envelhecimento acelerado; germinação; tetrazólio; vigor.Escola de Agronomia - Universidade Federal de Goiás2010-09-29info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionPesquisa Experimentalapplication/pdfhttps://revistas.ufg.br/pat/article/view/6590Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; v. 40, n. 3, Jul./Sep. 2010; 330-340Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); v. 40, n. 3, jul./set. 2010; 330-340Pesquisa Agropecuária Tropical; v. 40, n. 3, jul./set. 2010; 330-3401983-4063reponame:Pesquisa Agropecuária Tropical (Online)instname:Universidade Federal de Goiás (UFG)instacron:UFGporhttps://revistas.ufg.br/pat/article/view/6590/7809Copyright (c) 2020 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics)info:eu-repo/semantics/openAccessPariz, Cristiano MagalhãesFerreira, Roberta Leopoldode Sá, Marco EustáquioAndreotti, MarceloChioderoli, Carlos AlessandroRibeiro, Ana Paula2020-07-09T17:47:25Zoai:ojs.revistas.ufg.br:article/6590Revistahttps://revistas.ufg.br/patPUBhttps://revistas.ufg.br/pat/oaiaseleguini.pat@gmail.com||mgoes@agro.ufg.br1983-40631517-6398opendoar:2024-05-21T19:55:44.403225Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)true
dc.title.none.fl_str_mv PHYSIOLOGICAL QUALITY OF Brachiaria SEEDS AND DRY MASS YIELD ESTIMATE UNDER DIFFERENT IRRIGATED CROP-LIVESTOCK INTEGRATION SYSTEMS
QUALIDADE FISIOLÓGICA DE SEMENTES DE Brachiaria E AVALIAÇÃO DA PRODUTIVIDADE DE MASSA SECA, EM DIFERENTES SISTEMAS DE INTEGRAÇÃO LAVOURA-PECUÁRIA SOB IRRIGAÇÃO
title PHYSIOLOGICAL QUALITY OF Brachiaria SEEDS AND DRY MASS YIELD ESTIMATE UNDER DIFFERENT IRRIGATED CROP-LIVESTOCK INTEGRATION SYSTEMS
spellingShingle PHYSIOLOGICAL QUALITY OF Brachiaria SEEDS AND DRY MASS YIELD ESTIMATE UNDER DIFFERENT IRRIGATED CROP-LIVESTOCK INTEGRATION SYSTEMS
Pariz, Cristiano Magalhães
Controlled deterioration
accelerated aging
germination
tetrazolium
vigor
Deterioração controlada
envelhecimento acelerado
germinação
tetrazólio
vigor
title_short PHYSIOLOGICAL QUALITY OF Brachiaria SEEDS AND DRY MASS YIELD ESTIMATE UNDER DIFFERENT IRRIGATED CROP-LIVESTOCK INTEGRATION SYSTEMS
title_full PHYSIOLOGICAL QUALITY OF Brachiaria SEEDS AND DRY MASS YIELD ESTIMATE UNDER DIFFERENT IRRIGATED CROP-LIVESTOCK INTEGRATION SYSTEMS
title_fullStr PHYSIOLOGICAL QUALITY OF Brachiaria SEEDS AND DRY MASS YIELD ESTIMATE UNDER DIFFERENT IRRIGATED CROP-LIVESTOCK INTEGRATION SYSTEMS
title_full_unstemmed PHYSIOLOGICAL QUALITY OF Brachiaria SEEDS AND DRY MASS YIELD ESTIMATE UNDER DIFFERENT IRRIGATED CROP-LIVESTOCK INTEGRATION SYSTEMS
title_sort PHYSIOLOGICAL QUALITY OF Brachiaria SEEDS AND DRY MASS YIELD ESTIMATE UNDER DIFFERENT IRRIGATED CROP-LIVESTOCK INTEGRATION SYSTEMS
author Pariz, Cristiano Magalhães
author_facet Pariz, Cristiano Magalhães
Ferreira, Roberta Leopoldo
de Sá, Marco Eustáquio
Andreotti, Marcelo
Chioderoli, Carlos Alessandro
Ribeiro, Ana Paula
author_role author
author2 Ferreira, Roberta Leopoldo
de Sá, Marco Eustáquio
Andreotti, Marcelo
Chioderoli, Carlos Alessandro
Ribeiro, Ana Paula
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Pariz, Cristiano Magalhães
Ferreira, Roberta Leopoldo
de Sá, Marco Eustáquio
Andreotti, Marcelo
Chioderoli, Carlos Alessandro
Ribeiro, Ana Paula
dc.subject.por.fl_str_mv Controlled deterioration
accelerated aging
germination
tetrazolium
vigor
Deterioração controlada
envelhecimento acelerado
germinação
tetrazólio
vigor
topic Controlled deterioration
accelerated aging
germination
tetrazolium
vigor
Deterioração controlada
envelhecimento acelerado
germinação
tetrazólio
vigor
description The speed and magnitude of tropical pastures expansion in Brazil are related to the availability of quality seeds. This research aimed to evaluate the physiological quality of seeds of two Brachiaria species submitted to germination and viability tests and also estimate, for both species, the fresh and dry mass yield, under different irrigated crop-livestock integration systems. For field analysis, the experimental design was a randomized complete block, in subplots, with four intercrops in the plot (Brachiaria brizantha cv. Marandu and Brachiaria ruziziensis simultaneously established with corn and nitrogen fertilization coverage), and four forage cutting times, in the winter/spring season, in subplots, with four replications. In the laboratory, the experimental design was completely randomized, with four replications per treatment/test. The germination and viability tests indicated that B. brizantha seeds showed higher physiological quality, when compared with B. ruziziensis, while the tetrazolium test and germinated seedlings characteristics were similar. The B. ruziziensis, simultaneously intercropped with corn, was the less viable intercrop, due to the lower fresh and dry mass yield and litter deposition on the soil surface. In general, the pasture formation for the second season cultivation, intercropped with corn, was an excellent alternative for crop-livestock integration under a no-tillage system. KEY-WORDS: Controlled deterioration; accelerated aging; germination; tetrazolium; vigor.
publishDate 2010
dc.date.none.fl_str_mv 2010-09-29
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Pesquisa Experimental
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://revistas.ufg.br/pat/article/view/6590
url https://revistas.ufg.br/pat/article/view/6590
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://revistas.ufg.br/pat/article/view/6590/7809
dc.rights.driver.fl_str_mv Copyright (c) 2020 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics)
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2020 Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics)
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Escola de Agronomia - Universidade Federal de Goiás
publisher.none.fl_str_mv Escola de Agronomia - Universidade Federal de Goiás
dc.source.none.fl_str_mv Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; v. 40, n. 3, Jul./Sep. 2010; 330-340
Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); v. 40, n. 3, jul./set. 2010; 330-340
Pesquisa Agropecuária Tropical; v. 40, n. 3, jul./set. 2010; 330-340
1983-4063
reponame:Pesquisa Agropecuária Tropical (Online)
instname:Universidade Federal de Goiás (UFG)
instacron:UFG
instname_str Universidade Federal de Goiás (UFG)
instacron_str UFG
institution UFG
reponame_str Pesquisa Agropecuária Tropical (Online)
collection Pesquisa Agropecuária Tropical (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)
repository.mail.fl_str_mv aseleguini.pat@gmail.com||mgoes@agro.ufg.br
_version_ 1799874817115029504

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