Forage potential of native ecotypes of Paspalum notatum and P. guenoarum.

Autor:	Steiner MG; Programa de Pós-Graduação em Zootecnia, Faculdade de Agronomia, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves, 7712, 91501-970 Porto Alegre, RS, Brazil., Dall'agnol M; Departamento de Plantas Forrageiras e Agrometeorologia, Faculdade de Agronomia, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves, 7712, 91501-970 Porto Alegre, RS, Brazil., Nabinger C; Departamento de Plantas Forrageiras e Agrometeorologia, Faculdade de Agronomia, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves, 7712, 91501-970 Porto Alegre, RS, Brazil., Scheffer-Basso SM; Instituto de Ciências Biológicas, Universidade de Passo Fundo, Rodovia BR 285, Km 292,7, s/n, São José, 99001-970 Passo Fundo, RS, Brazil., Weiler RL; Departamento de Plantas Forrageiras e Agrometeorologia, Faculdade de Agronomia, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves, 7712, 91501-970 Porto Alegre, RS, Brazil., Simioni C; Departamento de Plantas Forrageiras e Agrometeorologia, Faculdade de Agronomia, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves, 7712, 91501-970 Porto Alegre, RS, Brazil., Schifino-Wittmann MT; Departamento de Plantas Forrageiras e Agrometeorologia, Faculdade de Agronomia, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves, 7712, 91501-970 Porto Alegre, RS, Brazil., Motta ÉAMD; Programa de Pós-Graduação em Zootecnia, Faculdade de Agronomia, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves, 7712, 91501-970 Porto Alegre, RS, Brazil.
Jazyk:	angličtina
Zdroj:	Anais da Academia Brasileira de Ciencias [An Acad Bras Cienc] 2017 Jul-Sep; Vol. 89 (3), pp. 1753-1760. Date of Electronic Publication: 2017 Aug 14.
DOI:	10.1590/0001-3765201720160662
Abstrakt:	The Paspalum genus includes several species that are important for livestock in Rio Grande do Sul, such as P. notatum and P. guenoarum, typical of native pastures of the Pampa biome. The aim of this study was to investigate forage production and chemical composition of four ecotypes of these species in relation to the cv. 'Pensacola' (P. notatum). Ecotypes of P. guenoarum (Azulão and Baio) and P. notatum (André da Rocha and Bagual) and the cv. 'Pensacola' were evaluated for two years, during which four cuts/year were made. The work was carried out under field conditions at the Agronomic Experimental Station of the Federal University of Rio Grande do Sul (30°05'S; 51°39'W), in a completely randomized design. P. guenoarum stood out for higher productivity and greater tolerance to cold; the Azulão ecotype showed more autumn production in relation to the other ecotypes. Crude protein content ranged from 14 (Baio) to 15% ('Pensacola'); for neutral detergent fiber, the variation was 68 (Azulão) to 71% ('Pensacola') and for acid detergent fiber there was a variation of 38 ('Pensacola') to 43% (Baio). The data demonstrates the potential of native genotypes for use as cattle feeding in southern Brazil.
Databáze:	MEDLINE
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