Data/hora: 13/06/2024 08:57:53

Biblioteca(s): | Embrapa Milho e Sorgo.
Tipo da produção científica: | Artigo em Anais de Congresso
Data corrente: | 14/11/1997
Data da última atualização: | 11/06/2018
Autoria: | SANTOS, M. X.; GUIMARAES, P. E. O.; PACHECO, C. A. P.; FRANCA, G. E.; PARENTONI, S. N.; GAMA, E. E. G.; LOPES, M. A.
Afiliação: | EMBRAPA/CNPMS; PAULO EVARISTO DE O GUIMARAES, CNPMS; SIDNEY NETTO PARENTONI, CNPMS.
Título: | Improvement of the maize population "Elite Synthetic NT" for soils with low nitrogen content.
Ano de publicação: | 1997
Fonte/Imprenta: | In: SYMPOSIUM OF DEVELOPPING DROUGHT AND LOW N-TOLERANCE MAIZE, 1996, El Batan, Mexico. Proceedings... El Batan: CIMMYT, 1997. p. 508-510.
Idioma: | Inglês
Conteúdo: | The maize population 'Elite Synthetic NT' has been selected with the objective of improvement its yield potential in soils with low nitrogen (N) availability. During the 1994/95 season, 144 half-sib families showing good male-female flowering synchrony were evaluated with and without N fertilizer at Sete Lagoas, MG. The experimental design utilized was a 12 x 12 lattice, with 5 m plots. The open-pollinated variety 'BR 106', selected in soils with high fertility, was used as a between block check. Mean ear weight for the selected families in N+ and N-environmental averaged 4,511 kg/ha and 3,327 kg/ha, respectively. Yield reduction between environmental averaged 27.14% for the selected families and 65.8% for BR 106. The results indicate that selection inN-environments is an efficient approach for developing genotypes with better performance in soils with low nitrogen content.
Palavras-Chave: | Brasil; Maize; Minas Gerais; Sete Lagoas.
Thesagro: | Melhoramento; Milho; Nitrogênio; Solo; Zea Mays.
Thesaurus Nal: | Brazil; breeding; nitrogen; soil.
Categoria do assunto: | --
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/38237/1/Improvement-maize.pdf
Registro original: | Embrapa Milho e Sorgo (CNPMS)
Exemplares: | CNPMS - (5948-1) - UPC - AA - DD -  -  -  - DIS