Título:	Agronomic traits, physiological parameters, chemical composition, and in vitro digestibility of Urochloa brizantha cv. Piatã, Megathyrsus maximus cv. Zuri and Megathyrsus maximus cv. Tamani in silvopastoral systems.
Autoria:	OLIVEIRA, A. F. de PEREIRA, W. M. C. R. GONTIJO NETO, M. M. VILAS-BOAS, T. TORRE, F. D. TEIXEIRA, E. C. SILVA, E. A. da RODRIGUES, P. D. LANA, A. M. Q.
Afiliação:	ALAN FIGUEIREDO DE OLIVEIRA, PONTIFÍCIA UNIVERSIDADE CATÓLICA DE MINAS GERAIS; WALTHER MALTA COUTINHO REZENDE PEREIRA, UNIVERSIDADE FEDERAL DE MINAS GERAIS; MIGUEL MARQUES GONTIJO NETO, CNPMS; TIAGO VILAS-BOAS, UNIVERSIDADE FEDERAL DE MINAS GERAIS; FELIPE DELLA TORRE, UNIVERSIDADE FEDERAL DE MINAS GERAIS; ELAINE CRISTINA TEIXEIRA, UNIVERSIDADE FEDERAL DE SÃO JOÃO DEL-REI; EDILANE APARECIDA DA SILVA, EMPRESA MINEIRA DE PESQUISA AGROPECUÁRIA; PEDRO DRUMMOND RODRIGUES, UNIVERSIDADE FEDERAL DE MINAS GERAIS; ÂNGELA MARIA QUINTÃO LANA, UNIVERSIDADE FEDERAL DE MINAS GERAIS.
Ano de publicação:	2026
Referência:	New Zealand Journal of Agricultural Research, v. 69, e70063, 2026.
Conteúdo:	Urochloa species are widely used in silvopastoral systems (SPS), but production losses highlight the need for more productive forages. This study evaluated agronomic, physiological, chemical composition, and in vitro digestibility responses of Urochloa brizantha cv. Piatã and Megathyrsus maximus cvs. Zuri and Tamani in SPS and monoculture (MONO). Forages were sown in MONO or SPS with 166 eucalyptus trees/ha. Nine plots were established per system, giving three replicates per cultivar. Forage accumulation and biomass were 31.8% (35.2 vs. 51.6 kg DM/ha/day) and 32.0% (5735 vs. 8428 kg DM/ha) higher in MONO than SPS. Biomass was 34.1% higher in M. maximus cv. Zuri than U. brizantha cv. Piatã. The leaf/stem ratio was 52.3% lower (3.18 vs. 6.66) in U. brizantha cv. Piatã than M. maximus cultivars. Intercellular carbon was 16.1% (180 vs. 155 μmol CO2/m2 /s) higher in MONO, while water use efficiency was 67.8% lower than in SPS. Megathyrsus maximus cv. Tamani had the highest crude protein (CP) in both systems, and CP in cvs. Tamani and Zuri was 6.43% (140 vs. 149 g DM/kg) and 18.0% (111 vs. 131 g DM/kg) higher in SPS than MONO. Although shading reduces M. maximus production, these cultivars can increase animal production compared with Urochloa in SPS.
Thesagro:	Eucalipto
Palavras-chave:	Agrofloresta Braquiaria Integração lavoura-pecuária-floresta Sistema ILPF
Digital Object Identifier:	https://doi.org/10.1002/jag2.70063
Tipo do material:	Artigo de periódico
Acesso:	openAccess
Aparece nas coleções:	Artigo em periódico indexado (CNPMS)