CORRELATIONS BETWEEN STRUCTURAL AND MORPHOGENETIC CHARACTERISTICS ON SIGNALGRASS PASTURES

Authors

  • Manoel Rozalino Santos
  • Dilermando Miranda da Fonseca Universidade Federal de Viçosa
  • Virgilio Mesquita Gomes Universidade Federal de Viçosa
  • Simone Pedro da Silva UNESP/Jaboticabal
  • Guilherme Portes Silva Universidade Federal de Viçosa
  • Marina Reis S. e Castro Universidade Federal de Viçosa

DOI:

https://doi.org/10.5216/cab.v13i1.13041

Keywords:

Forrage

Abstract

The analysis of both morphogenetic and structural characteristics of pasture allows us to understand the response patterns of the plant to the environment. Thus, this study was conducted to evaluate the associations between the morphogenetic and structural characteristics of Brachiaria decumbens under continuous grazing by cattle. The development of individual tillers in pastures was evaluated under two grazing management strategies during three seasons (winter, spring and summer). Pearson correlations between variables were estimated. The lengths of leaf and stem, number of tillers and leaves per tiller, rates of leaf appearance and elongation of leaf and stem of B. decumbens were positively correlated. There was a negative relationship between appearance and lifespan of leaves (r = -0.89). However, positive correlations between leaf appearance rate and number of tillers (r = 0.64) and between length of stem and leaf senescence rate (r = 0.63) were determined. The B. decumbens modifies its morphogenesis to better adapt to climate and grazing management.

KEYWORDS: Brachiaria decumbens; climate, grazing; growth; senescence.

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Author Biographies

Manoel Rozalino Santos

Zootecnista

Mestrado em Zootecnia pela Universidade Federal de Viçosa na área de Forragicultura e Pastagens

Doutorando em Zootecnia pela Universidade Federal de Viçosa na área de Forragicultura e Pastagens

Dilermando Miranda da Fonseca, Universidade Federal de Viçosa

Doutor e professor da Universidade Federal de Viçosa na área de forragicultura e pastagens.

Virgilio Mesquita Gomes, Universidade Federal de Viçosa

Pós-graduando em zootecnia da Universidade Federal de Viçosa na área de forragicultura.

Simone Pedro da Silva, UNESP/Jaboticabal

Pós-graduanda em zootecnia da UNESP/Jaboticabal na área de nutrição de ruminantes.

Guilherme Portes Silva, Universidade Federal de Viçosa

Graduando em zootecnia da Universidade Federal de Viçosa na área de forragicultura.

Marina Reis S. e Castro, Universidade Federal de Viçosa

Graduanda em zootecnia da Universidade Federal de Viçosa na área de forragicultura.

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Published

2012-03-29

How to Cite

SANTOS, M. R.; FONSECA, D. M. da; GOMES, V. M.; SILVA, S. P. da; SILVA, G. P.; CASTRO, M. R. S. e. CORRELATIONS BETWEEN STRUCTURAL AND MORPHOGENETIC CHARACTERISTICS ON SIGNALGRASS PASTURES. Brazilian Animal Science/ Ciência Animal Brasileira, Goiânia, v. 13, n. 1, p. 49–56, 2012. DOI: 10.5216/cab.v13i1.13041. Disponível em: https://revistas.ufg.br/vet/article/view/13041. Acesso em: 16 aug. 2024.

Issue

Vol. 13 No. 1 (2012)

Section

Animal Production

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