Data/hora: 06/06/2024 06:01:34

Biblioteca(s): | Embrapa Milho e Sorgo.
Tipo da produção científica: | Artigo em Periódico Indexado
Circulação/Nível: | A - 2
Data corrente: | 11/06/2010
Data da última atualização: | 04/06/2018
Autoria: | SCAPIM, C. A.; PACHECO, C. A. P.; AMARAL JUNIOR, A. T.; VIEIRA, R. A.; PINTO, R. J. B.; CONRADO, T. V.
Afiliação: | CARLOS ALBERTO SCAPIM, UEM; CLESO ANTONIO PATTO PACHECO, CNPMS; ANTONIO TEIXEIRA DO AMARAL JUNIOR, UENF; RAFAEL AUGUSTO VIEIRA, UEM; RONALD JOSE BARTH PINTO, UEM; THIAGO VINCENZI CONRADO, UEM.
Título: | Correlations between the stability and adaptability statistics of popcorn cultivars.
Ano de publicação: | 2010
Fonte/Imprenta: | Euphytica, Wageningen, v. 174, n. 2, p. 209-218, 2010.
DOI: | 10.1007/s10681-010-0118-y
Idioma: | Inglês
Conteúdo: | In plant breeding, correlations between the statistics of stability and adaptability of popcorn cultivars are not yet well understood. Therefore, the objectives of the present experiment was to investigate the correlations between r2di and bi from Eberhart and Russell, xi from Wricke, Sð1Þi, Sð2Þi and Sð3Þi from Huehn, Pi from Lin and Binns and the rank-sum from Kang, and indicate the most reliable method for selecting popcorn cultivars. These statistics were estimated by data of crop yield from 19 Brazilian genotypes under 21 environments and popping expansion under 16 environments. The xi,Sð1Þi, Sð2Þi, Sð3Þi and r2di were positively and significantly correlated indicating that just one in these five statistics is sufficient for selecting stable genotypes although they were not correlated with the means of crop yield and popping expansion. The bi was negatively and significantly S(1)i rank) and Index 2 (crop yield and popping expansion + Wi) indicating that superior popcorn genotypes are also stable. Finally, both Pi and the rank-sum are useful statistics in breeding programmes where crop yield, popping expansion and stability are essential traits for selecting genotypes.
Palavras-Chave: | Genotypy versus environment interaction; Multi-environment trials; Popcorn breeding; Zea mays L.
Categoria do assunto: | --
Registro original: | Embrapa Milho e Sorgo (CNPMS)
Exemplares: | CNPMS - (22807-1) - UPC - AP - DD -  -  -  - DIS