Nutritive value and anatomical characterization from Pennisetum purpureum genotypes

Autores

  • Fábio Nunes Lista Universidade Federal do Vale do São Francisco Autor
  • João Virgínio Emerenciano Neto Universidade Federal do Vale do São Francisco Autor
  • João Carlos de Carvalho Almeida Universidade Federal Rural do Rio de Janeiro Autor
  • Bruno Borges Deminicis Universidade Federal do Sul da Bahia Autor
  • David Ramos da Rocha Universidade Federal do Vale do São Francisco Autor
  • Gelson dos Santos Difante Universidade Federal do Mato Grosso do Sul Autor

DOI:

https://doi.org/10.4025/actascibiolsci.v42i1.53064

Palavras-chave:

cell wall; elephant grass; fiber; grasses; leaf blade; stem

Resumo

The research submitted samples from stems and leaf blades from tree genotypes of Pennisetum purpureum called 93-32-02, 92-70-02, and 91-06-02 (EMBRAPA - Dairy cattle) and elephant grass cv. Napier (reference cultivar) to the chemical, anatomical evaluations, and in vitro dry matter digestibility (IVDMD) measurement. The anatomical characteristics of the stems and leaf blades, the chemical composition, and the IVDMD of these genotypes at 70 days of re-growth were correlated. Concerning IVDMD, the data highlighted differences, and the cultivar Napier presented the smallest value. Digital images obtained by light microscopy from cross-section reveal that all the stem and leaf blade have similar structural organization. Quantitative differences were verified mainly in the stem. The leaves displayed differences only in the mesophyll thickness. The genotypes showed higher potential in the rainy season since they had the largest IVDMD when compared to the cultivar Napier.

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Publicado

2020-08-27

Edição

Seção

Botânica

Como Citar

Nutritive value and anatomical characterization from Pennisetum purpureum genotypes. (2020). Acta Scientiarum. Biological Sciences, 42(1), e53064. https://doi.org/10.4025/actascibiolsci.v42i1.53064

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