Canopy structure and morphogenesis of italian ryegrass intercropped with red clover under cutting intervals determined by thermal sum
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 UNESP |
Texto Completo: | http://dx.doi.org/10.1590/0103-8478cr20190989 http://hdl.handle.net/11449/206520 |
Resumo: | The canopy structure and morphogenesis of ryegrass (Lolium multiflorum Lam.) was investigated after it was over seeded with Tifton 85 (Cynodon spp.) and intercropped with red clover (Trifolium pratense L.). Time intervals between cuts were determined by different thermal sums (125, 250, 375, and 500 degree-days [DD]). Cuts were conducted at a height equivalent to 50% of the average canopy height. Morphogenic and structural data were collected from July to October of 2016 and 2017, from a completely randomized block experimental design. Canopy height, extended tiller height, pseudostem length, and forage mass were fitted to linear equations according to the thermal sums. Interaction of ryegrass with red clover was the highest (12.1%) for longer cut intervals (375 and 500 DD). The leaf appearance rate (0.0080 leaf/DD), phyllochron value (128.8 DD), and senescence rate (0.10 cm/DD) of ryegrass were comparable between the different intervals. The slowest elongation rate (0.06 cm/DD) with the shortest interval duration between cuts (171.6 DD) was observed in the 125 DD interval. According to the findings from this 2-year experiment, the use of a 250 DD cut interval was recommended between grazing events, taking into account the efficiency of forage use, ryegrass leaf, stem ratio, and interactions with red clover in the canopy under rotational stocking. |
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Canopy structure and morphogenesis of italian ryegrass intercropped with red clover under cutting intervals determined by thermal sumEstrutura do dossel e morfogênese do azevém anual consorciado com trevo vermelho em intervalos de corte determinados por soma térmicaLolium multiflorum LamOverseedingRotational StockingTifton 85Trifolium pratense LThe canopy structure and morphogenesis of ryegrass (Lolium multiflorum Lam.) was investigated after it was over seeded with Tifton 85 (Cynodon spp.) and intercropped with red clover (Trifolium pratense L.). Time intervals between cuts were determined by different thermal sums (125, 250, 375, and 500 degree-days [DD]). Cuts were conducted at a height equivalent to 50% of the average canopy height. Morphogenic and structural data were collected from July to October of 2016 and 2017, from a completely randomized block experimental design. Canopy height, extended tiller height, pseudostem length, and forage mass were fitted to linear equations according to the thermal sums. Interaction of ryegrass with red clover was the highest (12.1%) for longer cut intervals (375 and 500 DD). The leaf appearance rate (0.0080 leaf/DD), phyllochron value (128.8 DD), and senescence rate (0.10 cm/DD) of ryegrass were comparable between the different intervals. The slowest elongation rate (0.06 cm/DD) with the shortest interval duration between cuts (171.6 DD) was observed in the 125 DD interval. According to the findings from this 2-year experiment, the use of a 250 DD cut interval was recommended between grazing events, taking into account the efficiency of forage use, ryegrass leaf, stem ratio, and interactions with red clover in the canopy under rotational stocking.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Departamento de Zootecnia Faculdade de Ciências Agrárias e Veterinárias Universidade Estadual Paulista “Júlio de Mesquita Filho” (Unesp)Departamento de Zootecnia Universidade Federal de Santa Maria (UFSM)Departamento de Zootecnia Faculdade de Ciências Agrárias e Veterinárias Universidade Estadual Paulista “Júlio de Mesquita Filho” (Unesp)Universidade Estadual Paulista (Unesp)Universidade Federal de Sergipe (UFS)Ongaratto, Fernando [UNESP]da Rocha, Marta GomesPötter, LucianaBergoli, Tuani LopesSevero, Paula de OliveiraDutra, Juliana SquizaniMachado, Juliana MissioDotto, Lisiani RoratoMartini, Amanda Carneirode Oliveira, Eduarda Proença2021-06-25T10:33:36Z2021-06-25T10:33:36Z2020-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article1-8application/pdfhttp://dx.doi.org/10.1590/0103-8478cr20190989Ciencia Rural, v. 50, n. 11, p. 1-8, 2020.1678-45960103-8478http://hdl.handle.net/11449/20652010.1590/0103-8478cr20190989S0103-847820200011006562-s2.0-85091111609S0103-84782020001100656.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengCiencia Ruralinfo:eu-repo/semantics/openAccess2023-12-11T06:20:09Zoai:repositorio.unesp.br:11449/206520Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-12-11T06:20:09Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Canopy structure and morphogenesis of italian ryegrass intercropped with red clover under cutting intervals determined by thermal sum Estrutura do dossel e morfogênese do azevém anual consorciado com trevo vermelho em intervalos de corte determinados por soma térmica |
title |
Canopy structure and morphogenesis of italian ryegrass intercropped with red clover under cutting intervals determined by thermal sum |
spellingShingle |
Canopy structure and morphogenesis of italian ryegrass intercropped with red clover under cutting intervals determined by thermal sum Ongaratto, Fernando [UNESP] Lolium multiflorum Lam Overseeding Rotational Stocking Tifton 85 Trifolium pratense L |
title_short |
Canopy structure and morphogenesis of italian ryegrass intercropped with red clover under cutting intervals determined by thermal sum |
title_full |
Canopy structure and morphogenesis of italian ryegrass intercropped with red clover under cutting intervals determined by thermal sum |
title_fullStr |
Canopy structure and morphogenesis of italian ryegrass intercropped with red clover under cutting intervals determined by thermal sum |
title_full_unstemmed |
Canopy structure and morphogenesis of italian ryegrass intercropped with red clover under cutting intervals determined by thermal sum |
title_sort |
Canopy structure and morphogenesis of italian ryegrass intercropped with red clover under cutting intervals determined by thermal sum |
author |
Ongaratto, Fernando [UNESP] |
author_facet |
Ongaratto, Fernando [UNESP] da Rocha, Marta Gomes Pötter, Luciana Bergoli, Tuani Lopes Severo, Paula de Oliveira Dutra, Juliana Squizani Machado, Juliana Missio Dotto, Lisiani Rorato Martini, Amanda Carneiro de Oliveira, Eduarda Proença |
author_role |
author |
author2 |
da Rocha, Marta Gomes Pötter, Luciana Bergoli, Tuani Lopes Severo, Paula de Oliveira Dutra, Juliana Squizani Machado, Juliana Missio Dotto, Lisiani Rorato Martini, Amanda Carneiro de Oliveira, Eduarda Proença |
author2_role |
author author author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Universidade Federal de Sergipe (UFS) |
dc.contributor.author.fl_str_mv |
Ongaratto, Fernando [UNESP] da Rocha, Marta Gomes Pötter, Luciana Bergoli, Tuani Lopes Severo, Paula de Oliveira Dutra, Juliana Squizani Machado, Juliana Missio Dotto, Lisiani Rorato Martini, Amanda Carneiro de Oliveira, Eduarda Proença |
dc.subject.por.fl_str_mv |
Lolium multiflorum Lam Overseeding Rotational Stocking Tifton 85 Trifolium pratense L |
topic |
Lolium multiflorum Lam Overseeding Rotational Stocking Tifton 85 Trifolium pratense L |
description |
The canopy structure and morphogenesis of ryegrass (Lolium multiflorum Lam.) was investigated after it was over seeded with Tifton 85 (Cynodon spp.) and intercropped with red clover (Trifolium pratense L.). Time intervals between cuts were determined by different thermal sums (125, 250, 375, and 500 degree-days [DD]). Cuts were conducted at a height equivalent to 50% of the average canopy height. Morphogenic and structural data were collected from July to October of 2016 and 2017, from a completely randomized block experimental design. Canopy height, extended tiller height, pseudostem length, and forage mass were fitted to linear equations according to the thermal sums. Interaction of ryegrass with red clover was the highest (12.1%) for longer cut intervals (375 and 500 DD). The leaf appearance rate (0.0080 leaf/DD), phyllochron value (128.8 DD), and senescence rate (0.10 cm/DD) of ryegrass were comparable between the different intervals. The slowest elongation rate (0.06 cm/DD) with the shortest interval duration between cuts (171.6 DD) was observed in the 125 DD interval. According to the findings from this 2-year experiment, the use of a 250 DD cut interval was recommended between grazing events, taking into account the efficiency of forage use, ryegrass leaf, stem ratio, and interactions with red clover in the canopy under rotational stocking. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-01-01 2021-06-25T10:33:36Z 2021-06-25T10:33:36Z |
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://dx.doi.org/10.1590/0103-8478cr20190989 Ciencia Rural, v. 50, n. 11, p. 1-8, 2020. 1678-4596 0103-8478 http://hdl.handle.net/11449/206520 10.1590/0103-8478cr20190989 S0103-84782020001100656 2-s2.0-85091111609 S0103-84782020001100656.pdf |
url |
http://dx.doi.org/10.1590/0103-8478cr20190989 http://hdl.handle.net/11449/206520 |
identifier_str_mv |
Ciencia Rural, v. 50, n. 11, p. 1-8, 2020. 1678-4596 0103-8478 10.1590/0103-8478cr20190989 S0103-84782020001100656 2-s2.0-85091111609 S0103-84782020001100656.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Ciencia Rural |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
1-8 application/pdf |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1799965253994283008 |