Agronomic performance of interspecific Paspalum hybrids under nitrogen fertilization or mixed with legumes
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/254729 |
Resumo: | Nitrogen supply and mixtures with legumes affect agronomic performance of pas- tures, and both practices can guide breeding decisions in Paspalum hybrids. The goals of this study were: (a) quantify herbage accumulation (HA), leaf accumulation (LA), cold tolerance, and N use efficiency (NUE) in P. plicatulum × P. guenoarum hybrids subjected to N fertilization or grown in a mixture with legumes; (b) compare the grass–legume system to a grass–N fertilizer system; and (c) select the best hybrid for future cultivar releases. A randomized complete block design with three repli- cations and a split-plot treatment arrangement was used for 2 yr, with five N rates (0, 60, 120, 240, and 480 kg N ha−1) and a grass–legume mixture [grass + white clover (Trifolium repens L.) + birdsfoot trefoil (Lotus corniculatus L.)] as whole plots, and six genotypes as subplots (hybrids: 1020133, 102069, 103084, 103061; and controls: P. guenoarum ‘Azulão’ and Megathyrsus maximus ‘Aruana’). Higher N rates increased HA, LA, and cold tolerance. Higher NUE was obtained between 60 and 120 kg N ha−1. In the grass–legume mixture HA was similar to the rates of 60 and 120 kg N ha−1. Hybrid 1020133 had HA similar to the controls, LA greater than Aruana, and greater cold tolerance and NUE at 60 kg N ha−1 than Azulão and Aruana. Hybrid 1020133 should be selected for further animal performance stud- ies. The agronomic performance of perennial pastures can be improved through N management, and NUE should be a selection criterion in forage breeding. |
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Motta, Eder Alexandre Minski daDall'Agnol, MiguelRios, Esteban FernandoSouza, Cleber Henrique Lopes deWeiler, Roberto LuisBrunes, André PichSimioni, CarineÁvila, Mariana Rockenbach deNeto, DouglasFelix, Leonardo DuarteSantos, Tamyris Nunes dos2023-02-14T03:21:20Z20202639-6696http://hdl.handle.net/10183/254729001161617Nitrogen supply and mixtures with legumes affect agronomic performance of pas- tures, and both practices can guide breeding decisions in Paspalum hybrids. The goals of this study were: (a) quantify herbage accumulation (HA), leaf accumulation (LA), cold tolerance, and N use efficiency (NUE) in P. plicatulum × P. guenoarum hybrids subjected to N fertilization or grown in a mixture with legumes; (b) compare the grass–legume system to a grass–N fertilizer system; and (c) select the best hybrid for future cultivar releases. A randomized complete block design with three repli- cations and a split-plot treatment arrangement was used for 2 yr, with five N rates (0, 60, 120, 240, and 480 kg N ha−1) and a grass–legume mixture [grass + white clover (Trifolium repens L.) + birdsfoot trefoil (Lotus corniculatus L.)] as whole plots, and six genotypes as subplots (hybrids: 1020133, 102069, 103084, 103061; and controls: P. guenoarum ‘Azulão’ and Megathyrsus maximus ‘Aruana’). Higher N rates increased HA, LA, and cold tolerance. Higher NUE was obtained between 60 and 120 kg N ha−1. In the grass–legume mixture HA was similar to the rates of 60 and 120 kg N ha−1. Hybrid 1020133 had HA similar to the controls, LA greater than Aruana, and greater cold tolerance and NUE at 60 kg N ha−1 than Azulão and Aruana. Hybrid 1020133 should be selected for further animal performance stud- ies. The agronomic performance of perennial pastures can be improved through N management, and NUE should be a selection criterion in forage breeding.application/pdfengAgrosystems, Geosciences & Environment. Hoboken. Vol. 3, no. 1 (2020), [art.] e20127, 13 p.Graminea forrageiraFertilizante nitrogenadoDesempenho de culturaAgronomic performance of interspecific Paspalum hybrids under nitrogen fertilization or mixed with legumesEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSTEXT001161617.pdf.txt001161617.pdf.txtExtracted Texttext/plain52837http://www.lume.ufrgs.br/bitstream/10183/254729/2/001161617.pdf.txtd86110d41cdeb430b45cb13b42fcd86bMD52ORIGINAL001161617.pdfTexto completo (inglês)application/pdf1546923http://www.lume.ufrgs.br/bitstream/10183/254729/1/001161617.pdf6545f4c7355b0162ccd50d1743508a3fMD5110183/2547292024-02-21 04:58:26.626753oai:www.lume.ufrgs.br:10183/254729Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2024-02-21T07:58:26Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Agronomic performance of interspecific Paspalum hybrids under nitrogen fertilization or mixed with legumes |
title |
Agronomic performance of interspecific Paspalum hybrids under nitrogen fertilization or mixed with legumes |
spellingShingle |
Agronomic performance of interspecific Paspalum hybrids under nitrogen fertilization or mixed with legumes Motta, Eder Alexandre Minski da Graminea forrageira Fertilizante nitrogenado Desempenho de cultura |
title_short |
Agronomic performance of interspecific Paspalum hybrids under nitrogen fertilization or mixed with legumes |
title_full |
Agronomic performance of interspecific Paspalum hybrids under nitrogen fertilization or mixed with legumes |
title_fullStr |
Agronomic performance of interspecific Paspalum hybrids under nitrogen fertilization or mixed with legumes |
title_full_unstemmed |
Agronomic performance of interspecific Paspalum hybrids under nitrogen fertilization or mixed with legumes |
title_sort |
Agronomic performance of interspecific Paspalum hybrids under nitrogen fertilization or mixed with legumes |
author |
Motta, Eder Alexandre Minski da |
author_facet |
Motta, Eder Alexandre Minski da Dall'Agnol, Miguel Rios, Esteban Fernando Souza, Cleber Henrique Lopes de Weiler, Roberto Luis Brunes, André Pich Simioni, Carine Ávila, Mariana Rockenbach de Neto, Douglas Felix, Leonardo Duarte Santos, Tamyris Nunes dos |
author_role |
author |
author2 |
Dall'Agnol, Miguel Rios, Esteban Fernando Souza, Cleber Henrique Lopes de Weiler, Roberto Luis Brunes, André Pich Simioni, Carine Ávila, Mariana Rockenbach de Neto, Douglas Felix, Leonardo Duarte Santos, Tamyris Nunes dos |
author2_role |
author author author author author author author author author author |
dc.contributor.author.fl_str_mv |
Motta, Eder Alexandre Minski da Dall'Agnol, Miguel Rios, Esteban Fernando Souza, Cleber Henrique Lopes de Weiler, Roberto Luis Brunes, André Pich Simioni, Carine Ávila, Mariana Rockenbach de Neto, Douglas Felix, Leonardo Duarte Santos, Tamyris Nunes dos |
dc.subject.por.fl_str_mv |
Graminea forrageira Fertilizante nitrogenado Desempenho de cultura |
topic |
Graminea forrageira Fertilizante nitrogenado Desempenho de cultura |
description |
Nitrogen supply and mixtures with legumes affect agronomic performance of pas- tures, and both practices can guide breeding decisions in Paspalum hybrids. The goals of this study were: (a) quantify herbage accumulation (HA), leaf accumulation (LA), cold tolerance, and N use efficiency (NUE) in P. plicatulum × P. guenoarum hybrids subjected to N fertilization or grown in a mixture with legumes; (b) compare the grass–legume system to a grass–N fertilizer system; and (c) select the best hybrid for future cultivar releases. A randomized complete block design with three repli- cations and a split-plot treatment arrangement was used for 2 yr, with five N rates (0, 60, 120, 240, and 480 kg N ha−1) and a grass–legume mixture [grass + white clover (Trifolium repens L.) + birdsfoot trefoil (Lotus corniculatus L.)] as whole plots, and six genotypes as subplots (hybrids: 1020133, 102069, 103084, 103061; and controls: P. guenoarum ‘Azulão’ and Megathyrsus maximus ‘Aruana’). Higher N rates increased HA, LA, and cold tolerance. Higher NUE was obtained between 60 and 120 kg N ha−1. In the grass–legume mixture HA was similar to the rates of 60 and 120 kg N ha−1. Hybrid 1020133 had HA similar to the controls, LA greater than Aruana, and greater cold tolerance and NUE at 60 kg N ha−1 than Azulão and Aruana. Hybrid 1020133 should be selected for further animal performance stud- ies. The agronomic performance of perennial pastures can be improved through N management, and NUE should be a selection criterion in forage breeding. |
publishDate |
2020 |
dc.date.issued.fl_str_mv |
2020 |
dc.date.accessioned.fl_str_mv |
2023-02-14T03:21:20Z |
dc.type.driver.fl_str_mv |
Estrangeiro info:eu-repo/semantics/article |
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info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10183/254729 |
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2639-6696 |
dc.identifier.nrb.pt_BR.fl_str_mv |
001161617 |
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http://hdl.handle.net/10183/254729 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Agrosystems, Geosciences & Environment. Hoboken. Vol. 3, no. 1 (2020), [art.] e20127, 13 p. |
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info:eu-repo/semantics/openAccess |
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openAccess |
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