Data/hora: 12/06/2024 09:24:01

Biblioteca(s): | Embrapa Gado de Corte.
Data corrente: | 21/01/2010
Data da última atualização: | 21/01/2010
Autoria: | SAVIDAN, Y.
Afiliação: | Yves Savidan, IRD and Agropolis International, Montpellier, France.
Título: | The past, present, and future of breeding tropical forage grasses.
Ano de publicação: | 2009
Fonte/Imprenta: | In:SIMPÓSIO INTERNACIONAL SOBRE MELHORAMENTO DE FORRAGEIRAS, 2., 2009, Campo Grande, MS. [Anais]... Campo Grande, MS: Embrapa Gado de Corte, 2009. II SIMF. Comitê editorial: Liana Jank; Lucimara Chiari; Rosângela Maria Simeão Resende.
Páginas: | 8 p.
Descrição Física: | 1 CD-ROM.
Idioma: | Inglês
Notas: | Palestra. P11.

Conteúdo:

The potential of both tropical forage grass wild diversity and their asexual mode of reproduction – apomixis – is extremely far from having been realized today. Likely less than 5% of this diversity has been collected and made available to breeders. As a consequence, there is no apomictic hybrid cultivar of any tropical forage grass species coming out of a breeding programme and widely grown anywhere. If breeding can be roughly considered as a three step process, i.e. (a) building on collections and their characterization, (b) the biology and genetics of important characters requiring improvement, and (c) the making of a new cultivars itself, all three steps suffered and continue to suffer from a totally unjustified underinvestment. Consumers growing demand for quality products, including meat and milk from animals raised on pastures has not yet been translated in an adequate priority setting. The gap between this demand and the response from the scientists will likely continue to
grow, because new cultivars require at least ten to fifteen years to be developed and tested. Meanwhile, recent advances in plant molecular biology show that major constrains to tropical forage grass seed production, such as seed shattering, could be rapidly overcome if plant
diversity was available and screened with appropriate genomic tools. The paper suggests three areas for urgent, new conventional and/or molecular breeding efforts: collection and characterization of new diversity in Africa embedded in collaborative research projects with
the national institutions; molecular breeding for seed retention (and other domestication traits); breeding for quality.

Thesagro: | Forrageira Tropical; Historia; Melhoramento Genético Vegetal; Pastagem.
Categoria do assunto: | K Ciência Florestal e Produtos de Origem Vegetal
Registro original: | Embrapa Gado de Corte (CNPGC)
Exemplares: | CNPGC - (12913-1) - UPE - PL - CD - CD-105 - SIM -  - DIS