Please use this identifier to cite or link to this item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/477299
Title: Improvement of the maize population "Elite Synthetic NT" for soils with low nitrogen content.
Authors: SANTOS, M. X.
GUIMARAES, P. E. O.
PACHECO, C. A. P.
FRANCA, G. E.
PARENTONI, S. N.
GAMA, E. E. G.
LOPES, M. A.
Affiliation: EMBRAPA/CNPMS; PAULO EVARISTO DE O GUIMARAES, CNPMS; SIDNEY NETTO PARENTONI, CNPMS.
Date Issued: 1997
Citation: In: SYMPOSIUM OF DEVELOPPING DROUGHT AND LOW N-TOLERANCE MAIZE, 1996, El Batan, Mexico. Proceedings... El Batan: CIMMYT, 1997. p. 508-510.
Description: 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.
Thesagro: Milho
Nitrogênio
Melhoramento
Zea Mays.
Solo
NAL Thesaurus: breeding
Brazil
nitrogen
soil.
Keywords: Sete Lagoas
Minas Gerais
Brasil
Maize.
Language: en
Type of Material: Parte de livro
Access: openAccess
Appears in Collections:Artigo em anais de congresso (CNPMS)

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