Data/hora: 13/06/2024 04:16:14

Provedor de dados: 	65	
País: 	Brazil	
Título: 	Levels of defoliation and regrowth dynamics in elephant grass swards	
Autores: 	Rodolfo,Giselle Regina; Schmitt,Daniel; Dias,Kamila Maciel; Sbrissia,André Fischer.	
Data: 	2015-07-01	
Ano: 	2015	
Palavras-chave: 	Morphogenesis; Regrowth stages; Pennisetum purpureum; Grazing management; Pioneiro-grass.	
Resumo: 	The morphogenetic and structural characteristics of forage plants and the processes of growth and senescence in tissues may vary according to the grazing management strategies used. This research aimed to assess the process of regrowth in elephant grass swards Cv. 'Pioneiro' submitted to two pre-grazing heights (90 and 120cm) combined with two levels of defoliation (50 and 70%). A reduction of the leaf elongation rate (LER) was observed during the regrowth stages, in addition to a reduction in the rate of leaf appearance (LAR) and aerial tiller population density (ATPD). In contrast, an increase was observed in leaf senescence (LSR) and stem and pseudo stem elongation rates (SER). The severe defoliation (70%) combined with a pre-grazing height of 120cm compromised the regrowth of elephant grass cv. 'Pioneiro', which must be managed with a maximum height of 90cm and maximum level of defoliation of 50% of the initial height.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782015000701299	
Editor: 	Universidade Federal de Santa Maria	
Relação: 	10.1590/0103-8478cr20141094	
Formato: 	text/html	
Fonte: 	Ciência Rural  v.45 n.7 2015	
Fonte: 	info:eu-repo/semantics/openAccess