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:	Nitrogênio Melhoramento Milho Zea Mays Solo
NAL Thesaurus:	Brazil breeding nitrogen soil
Keywords:	Sete Lagoas Minas Gerais Brasil Maize
Type of Material:	Artigo em anais e proceedings
Access:	openAccess
Appears in Collections:	Artigo em anais de congresso (CNPMS)