Data/hora: 20/06/2024 19:36:33

Biblioteca(s): | Embrapa Cerrados.
Data corrente: | 22/08/2000
Data da última atualização: | 22/08/2000
Autoria: | VALLE, C. B.; VALERIO, J. R.; CALIXTO, S.; BARCELLOS, A. O.
Título: | Characteristics of selected genotypes of Brachiaria for Brazilian pastures.
Ano de publicação: | 1999
Fonte/Imprenta: | In: INTERNATIONAL GRASSLAND CONFERENCE, 18., 1997, Winnipeg and Saskatoon. Proceedings. [S.l.]: Canadian Forage Council/Canadian Society of Agronomy/Canadian Society of Animal Science, 1999.
Idioma: | Inglês
Notas: | Grasslands 2000.
Conteúdo: | Brachiaria is grass genus of African origin. Some genotypes have shown good adaptation to poor, acid soils and now cover millions of hectares of pastures in tropical America. In an effort to increase diversity for selection, CIAT led collection expeditions to increase diversity for seletion, CIAT led collection expeditions to East Africa and later distributed this germplasm to collaborating institutions. Agronomical evaluation of a Brachiaria collection of broad genetic base was conducted at EMBRAPA/CNPGC with the objective of selecting potential new cultivars. Multivariate analysis was used to classify 193 accessions of nine different species into 8 groups using annual and seasonal production, leaf: stem ratio and regrowth characteristics. Resistance to spittlebug was evaluated under controlled conditions and monitored in the field. The evaluation resulted in the selection of 19 genotypes with superior agronomic characteristics. B. brizantha accessions BRA 003361, 003204 and 003395 combine good overall production with spittlebug resistance, important prerequisites for potential new cultivars.
Palavras-Chave: | Avaliacao; Evaluation.
Thesagro: | Brachiaria Brizantha; Brachiaria Decumbens; Brachiaria Humidicola; Cerrado.
Categoria do assunto: | --
Registro original: | Embrapa Cerrados (CPAC)
Exemplares: | CPAC - (12220-1) - UPC - PL - -- - CRI5304 -  - CRI5304 - DIS