Data/hora: 19/06/2024 20:06:53

Biblioteca(s): | Embrapa Gado de Corte.
Data corrente: | 17/04/1997
Data da última atualização: | 23/12/2009
Autoria: | PIZARRO, E. A.; VALLE, C. B. do; KELLER-GREIN, G.; SCHULTZE-KRAFT, R.; ZIMMER, A. H.
Título: | Regional experience with Brachiaria: Tropical America - Savannas.
Ano de publicação: | 1996
Fonte/Imprenta: | In: MILES, J.W.; MAASS, B.L.; VALLE, C.B. do, ed. Brachiaria: biology, agronomy and improvement. Cali: CIAT / Brasília: EMBRAPA-CNPGC, 1996.
Páginas: | p.225-243.
Série: | (CIAT.Publication, 259).
ISBN: | 958-9439-57-8
Idioma: | Inglês
Notas: | CNPGC.
Conteúdo: | The savanna ecosystems in varied and extensive, covering about 250 million hectares in South America. It is characterized by a well - defined dry season and acid, low-fertility soils. A few Brachiaria species have shown wide adaptation and are extensively used as pasture grasses in this ecosystem. These  were introduced from Africa in the 1950s and1960s, and spread, at first, vegetatively and then by seed, covering today as estimated 70 million hectares. Despites constraints-susceptibility to spittlebugs-and nutritional limitations, the few available cultivars, derived from these early introductions, play a major role in livestock production systems in the savannas. New germplasm has become available since the late 1980s, when collecting trips were undertake in East Africa, and intesite evaluation programs were developed  throughout the region. Selected accessions are entering advanced stages of evaluation. The results summarized in this paper attest to the outstanding characteristics of some of the new accessions, particulary of B. brizantha, and emphasize the importance of collaborative multidisciplinary work between research institutions and coutries.
Palavras-Chave: | America do Sul; Avaliação; Brasil; Brazilian savannas; Consorciação; Ecossitema; Evaluation; Paraguai; Pasture.
Thesagro: | Brachiaria; Cerrado; Germoplasma; Pastagem.
Thesaurus Nal: | Brazil; Colombia; ecosystems; germplasm; mixed cropping; Paraguay; South America; Venezuela.
Categoria do assunto: | --
Registro original: | Embrapa Gado de Corte (CNPGC)
Exemplares: | CNPGC - (5000-1) - UMT - PL - -- - 633.2 - M643b - 1997.00005 - DIS