Data/hora: 02/06/2024 12:55:56

Biblioteca(s): | Embrapa Agropecuária Oeste; Embrapa Arroz e Feijão; Embrapa Cerrados; Embrapa Unidades Centrais.
Data corrente: | 18/05/2005
Data da última atualização: | 27/10/2009
Autoria: | MACHADO, A. T.; MACHADO, C. T. de T.
Título: | Melhoramento vegetal participativo com ênfase na eficiência nutricional.
Ano de publicação: | 2003
Fonte/Imprenta: | Planaltina, DF: Embrapa Cerrados, 2003.
Páginas: | 39 p.
Série: | (Embrapa Cerrados. Documentos, 104).
Idioma: | Português
Conteúdo: | ABSTRACT: Participatory plant breeding uses a concept that joint formal (official researches institutions) and informal sector (farmers communities), combining the capabilities and the knowledge of both, and farmer's experiences, practices, and preferences. The goal is to join the yield improvement exploring the availabel farmer's agrobiodiversity and introduction new sources of genetic materials. Another goal is to develop the farmer's capability to select and to interchange seeds. Generally, participatory breeding has been used in areas under stress conditions. These areas are usually related with agriculture of subsistence, where farmer's do not have funds to buy seeds, fertilizers, and pesticides. Small farmers need varieties adapted to their specific local conditions and these materials can reduce the cost of production. The objective of this work was to present a review about different approaches in genetic plant breeding and the concept of participatory breeding. Besides, it describes a pionner work in participatory breeding in Brazil carried out with farmers belonging to the settlement "Sol da Manhã" (Seropédica, State of Rio de Janeiro). Low levels of nitrogen in soils are the main local stress condition. The result of this experience was the development and the release of the maize variety "Sol da Manhã".
Palavras-Chave: | Maize.
Thesagro: | Genética Vegetal; Melhoramento Genético Vegetal; Melhoramento Vegetal; Milho; Produção Vegetal; Produtividade; Variedade; Zea Mays.
Thesaurus Nal: | crop yield; genetics; plant breeding; varieties.
Categoria do assunto: | --
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/CPAC-2009/26221/1/doc_104.pdf
Registro original: | Embrapa Cerrados (CPAC)

Exemplares:

AI-SEDE - (31312-1) - EMB - FL - -- - 06459 - CPAC - 06459 - DIS
AI-SEDE - (31312-2) - EMB - FL - -- - 06459 - CPAC - 06459 - DIS
CNPAF - (25580-1) - EMB - FL - -- - FOL 4962 -  - 2003.04962 - DIS
CPAO - (24137-1) - EMB - FL - -- - FOL 14178 -  - FOL 14178 - DIS
CPAC - (26221-1) - UMT - FL - -- - FOL7564 -  - CRI6755 - DIS
CPAC - (26221-2) - UMT - FL - -- - FOL7564 -  - FOL7564 - DIS