ANATOMICAL, MORPHOGENIC AND STRUCTURAL CHARACTERISTICS OF XARAÉS PALISADE GRASS UNDER GRAZING

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dc.contributor.authorBasso, Kelen Cristina
dc.contributor.authorGalzerano, Leandro
dc.contributor.authorDA SILVA, Wilton Ladeira
dc.contributor.authorRuggieri, Ana Cláudia [UNESP]
dc.contributor.authorReis, Ricardo Andrade [UNESP]
dc.contributor.institutionUniversidade Federal de Santa Catarina (UFSC)
dc.contributor.institutionInstituto Federal do Triângulo Mineiro
dc.contributor.institutionUniversidade Federal de Goiás (UFG)
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.date.accessioned2023-07-29T16:11:56Z
dc.date.available2023-07-29T16:11:56Z
dc.date.issued2023-01-01
dc.description.abstractThis 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.en
dc.description.affiliationSpecial Coordination of Biological and Agronomic Sciences Universidade Federal de Santa Catarina, Santa Catarina
dc.description.affiliationInstituto Federal do Triângulo Mineiro, Minas Gerais
dc.description.affiliationDepartment of Animal Science Universidade Federal de Goiás, Goiás
dc.description.affiliationDepartment of Animal Science Universidade Estadual Paulista, São Paulo
dc.description.affiliationUnespDepartment of Animal Science Universidade Estadual Paulista, São Paulo
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipIdFAPESP: 09/18482-6
dc.identifierhttp://dx.doi.org/10.14393/BJ-v39n0a2023-60937
dc.identifier.citationBioscience Journal, v. 39.
dc.identifier.doi10.14393/BJ-v39n0a2023-60937
dc.identifier.issn1981-3163
dc.identifier.issn1516-3725
dc.identifier.scopus2-s2.0-85153397649
dc.identifier.urihttp://hdl.handle.net/11449/249887
dc.language.isoeng
dc.relation.ispartofBioscience Journal
dc.sourceScopus
dc.subjectLight interception
dc.subjectMicroscopy
dc.subjectRumen incubation
dc.subjectUrochloa
dc.titleANATOMICAL, MORPHOGENIC AND STRUCTURAL CHARACTERISTICS OF XARAÉS PALISADE GRASS UNDER GRAZINGen
dc.typeArtigo
unesp.departmentZootecnia - FCAVpt

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Jaboticabal - FCAV - Faculdade de Ciências Agrárias e Veterinárias