Use este identificador para citar ou linkar para este item: https://locus.ufv.br//handle/123456789/14956
Tipo: Artigo
Título: Tillering dynamics in Guinea grass pastures subjected to management strategies under rotational grazing
Autor(es): Zanine, Anderson de Moura
Nascimento Júnior, Domicio do
Sousa, Braulio Maia de Lana
Silveira, Márcia Cristina Teixeira da
Silva, Wilton Ladeira da
Santos, Manoel Eduardo Rozalino
Abstract: This study was carried out to analyze the tillering profile of Guinea grass (Panicum maximum cv. Tanzania) pastures subjected to two grazing frequencies (time necessary to intercept 90 and 95% of the incoming light) and two post-grazing heights (30 and 50 cm) in the period from November 2005 to October 2006. The experimental design was of completely randomized blocks with three replications, in a 2 × 2 factorial arrangement. At the end of the spring, pastures managed with 90% light interception showed greater tiller appearance rates in relation to pastures managed with 95%, regardless of post-grazing height. In the summer and fall, pastures managed with post-grazing height of 30 cm showed higher tiller appearance rates in comparison with pastures managed at 50 cm, regardless of grazing frequency. Concerning the tiller mortality rates, in the summer, higher values were found for pastures managed at 90/50 and 95/30 (interception/height), intermediate values at 90/30 and lower values in those managed at 95/50. Pastures managed at 90/30, 95/30 and 95/50 in the fall presented greater tiller mortality rates than those managed at 90/50. These differences do not occur in the winter/beginning of spring. The stability index remained above 1 all through the experimental period. All management strategies evaluated are adequate for Guinea grass.
Palavras-chave: Grazing frequency
Grazing intensity
Panicum maximum
Plant ecophysiology
Editor: Revista Brasileira de Zootecnia
Tipo de Acesso: Open Access
URI: http://dx.doi.org/10.1590/S1516-35982013000300002
http://www.locus.ufv.br/handle/123456789/14956
Data do documento: 16-Out-2012
Aparece nas coleções:Artigos

Arquivos associados a este item:
Arquivo Descrição TamanhoFormato 
02.pdftexto completo237,9 kBAdobe PDFThumbnail
Visualizar/Abrir


Os itens no repositório estão protegidos por copyright, com todos os direitos reservados, salvo quando é indicado o contrário.