Anatomical, morphogenic and structural characteristics of Xaraés palisade grass under grazing
Autor(a) principal: | |
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Data de Publicação: | 2023 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Bioscience journal (Online) |
Texto Completo: | https://seer.ufu.br/index.php/biosciencejournal/article/view/60937 |
Resumo: | This study evaluated under grazing intensities and periods of the year: leaf anatomy of Urochloa brizantha cv. Xaraés and its correlation with morphogenetic and structural characteristics, and leaves degradation after in situ incubation. Treatments were four grazing intensities (GI) defined by the pasture residuals leaf area index (rLAI 0.8, 1.3, 1.8, and 2.3) with three replications in a completely randomized design. Cows grazed in a rotational stocking with pastures regrowth period determined by 95% light interception. Leaves showed a higher proportion of sclerenchyma (2.64%) in pastures under lower GI and in the dry season (2.42%). Pastures managed under higher GI showed lower number of expanded leaves (2.58), lower number of lives leaves (3.45), and lower leaf senescence rate (0.05 cm tiller−1 d−1). Positive correlation was observed between leaf elongation rate and adaxial epidermis and vascular tissues. rLAI 1.8 and 2.3 provided greater residues after in situ leaf incubation at times 12, 48, 72, and 96 h compared to rLAI 0.8 and 1.3. rLAI and period of the year had little influence on leaf anatomy of the Xaraés managed under 95% LI, and leaf anatomy is correlated with the morphogenetic and structural pasture characteristics. Pastures managed under lower GI show more residues after leaves incubation in rumen. |
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Anatomical, morphogenic and structural characteristics of Xaraés palisade grass under grazingLight interceptionMicroscopyRumen incubationUrochloa. Agricultural SciencesThis study evaluated under grazing intensities and periods of the year: leaf anatomy of Urochloa brizantha cv. Xaraés and its correlation with morphogenetic and structural characteristics, and leaves degradation after in situ incubation. Treatments were four grazing intensities (GI) defined by the pasture residuals leaf area index (rLAI 0.8, 1.3, 1.8, and 2.3) with three replications in a completely randomized design. Cows grazed in a rotational stocking with pastures regrowth period determined by 95% light interception. Leaves showed a higher proportion of sclerenchyma (2.64%) in pastures under lower GI and in the dry season (2.42%). Pastures managed under higher GI showed lower number of expanded leaves (2.58), lower number of lives leaves (3.45), and lower leaf senescence rate (0.05 cm tiller−1 d−1). Positive correlation was observed between leaf elongation rate and adaxial epidermis and vascular tissues. rLAI 1.8 and 2.3 provided greater residues after in situ leaf incubation at times 12, 48, 72, and 96 h compared to rLAI 0.8 and 1.3. rLAI and period of the year had little influence on leaf anatomy of the Xaraés managed under 95% LI, and leaf anatomy is correlated with the morphogenetic and structural pasture characteristics. Pastures managed under lower GI show more residues after leaves incubation in rumen.Universidade Federal de Uberlândia2023-03-31info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.ufu.br/index.php/biosciencejournal/article/view/6093710.14393/BJ-v39n0a2023-60937Bioscience Journal ; Vol. 39 (2023): Continuous Publication; e39067Bioscience Journal ; v. 39 (2023): Continuous Publication; e390671981-3163reponame:Bioscience journal (Online)instname:Universidade Federal de Uberlândia (UFU)instacron:UFUenghttps://seer.ufu.br/index.php/biosciencejournal/article/view/60937/35930Brazil; Contemporary Copyright (c) 2023 Kelen Cristina Basso, Leandro Galzerano, Wilton Ladeira da Silva, Ana Cláudia Ruggieri, Ricardo Andrade Reishttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessBasso, Kelen CristinaGalzerano, LeandroSilva, Wilton Ladeira daRuggieri, Ana CláudiaReis, Ricardo Andrade2024-01-31T19:16:18Zoai:ojs.www.seer.ufu.br:article/60937Revistahttps://seer.ufu.br/index.php/biosciencejournalPUBhttps://seer.ufu.br/index.php/biosciencejournal/oaibiosciencej@ufu.br||1981-31631516-3725opendoar:2024-01-31T19:16:18Bioscience journal (Online) - Universidade Federal de Uberlândia (UFU)false |
dc.title.none.fl_str_mv |
Anatomical, morphogenic and structural characteristics of Xaraés palisade grass under grazing |
title |
Anatomical, morphogenic and structural characteristics of Xaraés palisade grass under grazing |
spellingShingle |
Anatomical, morphogenic and structural characteristics of Xaraés palisade grass under grazing Basso, Kelen Cristina Light interception Microscopy Rumen incubation Urochloa. Agricultural Sciences |
title_short |
Anatomical, morphogenic and structural characteristics of Xaraés palisade grass under grazing |
title_full |
Anatomical, morphogenic and structural characteristics of Xaraés palisade grass under grazing |
title_fullStr |
Anatomical, morphogenic and structural characteristics of Xaraés palisade grass under grazing |
title_full_unstemmed |
Anatomical, morphogenic and structural characteristics of Xaraés palisade grass under grazing |
title_sort |
Anatomical, morphogenic and structural characteristics of Xaraés palisade grass under grazing |
author |
Basso, Kelen Cristina |
author_facet |
Basso, Kelen Cristina Galzerano, Leandro Silva, Wilton Ladeira da Ruggieri, Ana Cláudia Reis, Ricardo Andrade |
author_role |
author |
author2 |
Galzerano, Leandro Silva, Wilton Ladeira da Ruggieri, Ana Cláudia Reis, Ricardo Andrade |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Basso, Kelen Cristina Galzerano, Leandro Silva, Wilton Ladeira da Ruggieri, Ana Cláudia Reis, Ricardo Andrade |
dc.subject.por.fl_str_mv |
Light interception Microscopy Rumen incubation Urochloa. Agricultural Sciences |
topic |
Light interception Microscopy Rumen incubation Urochloa. Agricultural Sciences |
description |
This study evaluated under grazing intensities and periods of the year: leaf anatomy of Urochloa brizantha cv. Xaraés and its correlation with morphogenetic and structural characteristics, and leaves degradation after in situ incubation. Treatments were four grazing intensities (GI) defined by the pasture residuals leaf area index (rLAI 0.8, 1.3, 1.8, and 2.3) with three replications in a completely randomized design. Cows grazed in a rotational stocking with pastures regrowth period determined by 95% light interception. Leaves showed a higher proportion of sclerenchyma (2.64%) in pastures under lower GI and in the dry season (2.42%). Pastures managed under higher GI showed lower number of expanded leaves (2.58), lower number of lives leaves (3.45), and lower leaf senescence rate (0.05 cm tiller−1 d−1). Positive correlation was observed between leaf elongation rate and adaxial epidermis and vascular tissues. rLAI 1.8 and 2.3 provided greater residues after in situ leaf incubation at times 12, 48, 72, and 96 h compared to rLAI 0.8 and 1.3. rLAI and period of the year had little influence on leaf anatomy of the Xaraés managed under 95% LI, and leaf anatomy is correlated with the morphogenetic and structural pasture characteristics. Pastures managed under lower GI show more residues after leaves incubation in rumen. |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023-03-31 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://seer.ufu.br/index.php/biosciencejournal/article/view/60937 10.14393/BJ-v39n0a2023-60937 |
url |
https://seer.ufu.br/index.php/biosciencejournal/article/view/60937 |
identifier_str_mv |
10.14393/BJ-v39n0a2023-60937 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://seer.ufu.br/index.php/biosciencejournal/article/view/60937/35930 |
dc.rights.driver.fl_str_mv |
https://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.coverage.none.fl_str_mv |
Brazil; Contemporary |
dc.publisher.none.fl_str_mv |
Universidade Federal de Uberlândia |
publisher.none.fl_str_mv |
Universidade Federal de Uberlândia |
dc.source.none.fl_str_mv |
Bioscience Journal ; Vol. 39 (2023): Continuous Publication; e39067 Bioscience Journal ; v. 39 (2023): Continuous Publication; e39067 1981-3163 reponame:Bioscience journal (Online) instname:Universidade Federal de Uberlândia (UFU) instacron:UFU |
instname_str |
Universidade Federal de Uberlândia (UFU) |
instacron_str |
UFU |
institution |
UFU |
reponame_str |
Bioscience journal (Online) |
collection |
Bioscience journal (Online) |
repository.name.fl_str_mv |
Bioscience journal (Online) - Universidade Federal de Uberlândia (UFU) |
repository.mail.fl_str_mv |
biosciencej@ufu.br|| |
_version_ |
1797069065117761536 |