Morphophysiological traits of elephant grass (Pennisetum purpureum, Schum.) clones evaluated under intensive grazing conditions at the forest zone of Pernambuco

Authors

  • Erinaldo Viana de Freitas Instituto Agronômico de Pernambuco, Recife, PE
  • Mário de Andrade Lira Instituto Agronômico de Pernambuco, Recife, PE
  • José Carlos Batista Dubeux Júnior Universidade Federal Rural de Pernambuco, Departamento de Zootecnia, Recife, PE
  • Mércia Virginia Ferreira dos Santos Universidade Federal Rural de Pernambuco, Departamento de Zootecnia, Recife, PE
  • Alexandre Carneiro Leão de Mello Universidade Federal de Alagoas, Departamento de Zootecnia, Rio Largo, AL
  • José Nildo Tabosa Instituto Agronômico de Pernambuco, Recife, PE
  • José de Paula Oliveira Instituto Agronômico de Pernambuco, Recife, PE
  • Venézio Felipe dos Santos Instituto Agronômico de Pernambuco, Recife, PE

Keywords:

morphology, pasture, tillering

Abstract

This work aimed to evaluate morphophysiological traits of elephant-grass clones for grazing utilization in the Pernambuco€™s forest zone. It was evaluated 15 elephant-grass€™clones and one elephant-grass x Pearl Millet (Pennisetum americanum, (L.) Leeke) hibrid, under grazing conditions. A randomized blocks design with 16 treatments and four replications was used. It was used small plots, with the presence of the animals to simulate the grazing effects over the treatments. It was evaluated the flowering, basal and aerial tillering, plant height, apical meristematic tissue height, and leaf/stem ratio. The €œPioneiro€ clone was the most precocious material, becoming the unique flowered clone at the 60 days of growth, after the cut of uniformization. The cultivars €œTrês Rios€ and €œIAC€ showed high basal tillering rate and soil coverage. The clones €œCE-08-AD€ and €œHexaplóide€ showed high aerial tillering rate. Significant differences (P<0,05) were found to aerial tiller mortality and to plant height. The €œCE-08-AD€ and €œVenezuela€ clones presented the best performance considering the majority of evaluated parameters. So, they are promissing materials to be used under grazing conditions in the Pernambuco€™s forest zone.

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Published

2013-11-29

Issue

Section

FORAGE CROPS AND PASTURES

How to Cite

Morphophysiological traits of elephant grass (Pennisetum purpureum, Schum.) clones evaluated under intensive grazing conditions at the forest zone of Pernambuco. (2013). Bulletin of Animal Husbandry, 60(2), 127-138. http://bia.iz.sp.gov.br/index.php/bia/article/view/1340

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