01880naa a2200217 a 450000100080000000500110000800800410001902400470006010000250010724500790013226000090021152012230022065000190144365000160146265000250147865000100150365300210151365300270153470000160156177300850157720540082017-04-25       2016    bl uuuu     u00u1 u    #d7 a10.18512/1980-6477/rbms.v15n2p346-3562DOI1 aMIRANDA FILHO, J. B.  aGenetic enhancement of semi-exotic maize germplasm.h[electronic resource]  c2016  aThe characterization of 26 populations with varying levels of exotic germplasm was conducted in two environments representing distinct locations and planting seasons. The whole set was identified by five subsets: I - local adapted germplasm; II - exotic derived from tropical germplasm; III - semi-exotic derived from tropical germplasm; IV - semi-exotic derived from varying proportion of tropical and temperate germplasm; and V - semi-exotic derived from temperate germplasm. In the experiment -I (Anhembi, SP; three replications) the mean yield (EW - ear weight, t ha-1) for the five sets were 9.49, 8.88, 9.11, 8.68 and 8.51; which are equivalent to 79.5, 74.4, 76.3, 72.7 and 71.3 in percent of the hybrid check. Means for other traits (E10-weight of ten ears, EL-ear length, ED - ear diameter, and TB - tassel branch number) were also shown. In the experiment -II (Piracicaba, SP; no replications), the following traits were evaluated: EW, GW (grain weight), GR (grain yield ratio), MF (days to male flowering), and SW (specific weight). A low correlation (0.220) was observed for EW between environments. In general, the populations under study presented a fairly good potential to be used in breeding programs.  aPlant breeding  aGermoplasma  aMelhoramento vegetal  aMilho  aExotic germplasm  aPopulation improvement1 aREIS, E. F.  tRevista Brasileira de Milho e Sorgo, Sete Lagoasgv. 15, n. 2, p. 346-356, 2016.