Data/hora: 25/06/2024 05:23:57

Biblioteca(s): | Embrapa Agricultura Digital.
Data corrente: | 22/05/2009
Data da última atualização: | 01/12/2010
Autoria: | SCARPIM, C. A.; PINTO, R. J. B.; AMARAL JÚNIOR, A. T. do; MORA, F.; DANDOLIM, T. S.
Afiliação: | CARLOS ALBERTO SCARPIM, UEM; RONALD JOSÉ BARTH PINTO, UEM; ANTÔNIO TEIXEIRA DO AMARAL JÚNIOR, UENF; FREDDY MORA, UEM; THATIANA SILVA DANDOLIM, UEM.
Título: | Combining ability of white grain popcorn populations.
Ano de publicação: | 2006
Fonte/Imprenta: | Crop Breeding and Applied Biotechnology, Londrina, v. 6, n. 2, p. 136-143, June 2006.
Idioma: | Inglês
Conteúdo: | The objectives of this study were to indicate the best improvement strategy and select parents to begin an improvement program of white grain popcorn based on the combining ability and heterosis of eight populations selected in experiments in the northwestern region of Paraná. The traits plant and ear height, grain yield and popping expansion were evaluated. The base populations, the F1 and five controls were evaluated in Maringá, state of Paraná, over the course of two years. Heterosis for popping expansion was very low and the best improvement strategy is to raise the values of popping expansion up to commercial levels through intrapopulation improvement of the populations BBS Angela and SC 002. Intense selection must be applied to reduce plant and ear height: intrapopulation selection must not be initiated at this moment.
Palavras-Chave: | Capacidade de expansão; Capacidde combinatória.
Thesagro: | Agricultura; Biotecnologia; Genética; Milho; Rendimento; Zea Mays.
Categoria do assunto: | G Melhoramento Genético
Registro original: | Embrapa Agricultura Digital (CNPTIA)
Exemplares: | CNPTIA - (12919-1) - ADD - AP - PP -  -  -  - DIS