Canopy structure and morphogenesis of italian ryegrass intercropped with red clover under cutting intervals determined by thermal sum

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dc.contributor.authorOngaratto, Fernando [UNESP]
dc.contributor.authorda Rocha, Marta Gomes
dc.contributor.authorPötter, Luciana
dc.contributor.authorBergoli, Tuani Lopes
dc.contributor.authorSevero, Paula de Oliveira
dc.contributor.authorDutra, Juliana Squizani
dc.contributor.authorMachado, Juliana Missio
dc.contributor.authorDotto, Lisiani Rorato
dc.contributor.authorMartini, Amanda Carneiro
dc.contributor.authorde Oliveira, Eduarda Proença
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Federal de Sergipe (UFS)
dc.date.accessioned2021-06-25T10:33:36Z
dc.date.available2021-06-25T10:33:36Z
dc.date.issued2020-01-01
dc.description.abstractThe 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.en
dc.description.affiliationDepartamento de Zootecnia Faculdade de Ciências Agrárias e Veterinárias Universidade Estadual Paulista “Júlio de Mesquita Filho” (Unesp)
dc.description.affiliationDepartamento de Zootecnia Universidade Federal de Santa Maria (UFSM)
dc.description.affiliationUnespDepartamento de Zootecnia Faculdade de Ciências Agrárias e Veterinárias Universidade Estadual Paulista “Júlio de Mesquita Filho” (Unesp)
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.format.extent1-8
dc.identifierhttp://dx.doi.org/10.1590/0103-8478cr20190989
dc.identifier.citationCiencia Rural, v. 50, n. 11, p. 1-8, 2020.
dc.identifier.doi10.1590/0103-8478cr20190989
dc.identifier.fileS0103-84782020001100656.pdf
dc.identifier.issn1678-4596
dc.identifier.issn0103-8478
dc.identifier.scieloS0103-84782020001100656
dc.identifier.scopus2-s2.0-85091111609
dc.identifier.urihttp://hdl.handle.net/11449/206520
dc.language.isoeng
dc.relation.ispartofCiencia Rural
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectLolium multiflorum Lam
dc.subjectOverseeding
dc.subjectRotational Stocking
dc.subjectTifton 85
dc.subjectTrifolium pratense L
dc.titleCanopy structure and morphogenesis of italian ryegrass intercropped with red clover under cutting intervals determined by thermal sumen
dc.titleEstrutura do dossel e morfogênese do azevém anual consorciado com trevo vermelho em intervalos de corte determinados por soma térmicapt
dc.typeArtigo

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