01574naa a2200265 a 450000100080000000500110000800800410001910000140006024500480007426000090012252007920013165000130092365000260093665000140096265000170097665300350099365300390102865300330106765300270110065300230112770000180115070000250116870000220119377300930121512135642012-07-20       2004    bl uuuu     u00u1 u    #d1 aBISON, O.  aInbreeding depression in Eucalyptus clones.  c2004  aMost Eucalyptus plantations are developed from clones. The inbreeding depression estimate allows plant breeders to plan their breeding programmes more accurately. To obtain information concerning inbreeding depression, 10 clones were inbred. The clonal (F1) and the inbred generation (F2) were evaluated in two contiguous experiments in Aracruz, Espirito Santo, Brazil. The experiments were initiated in August 2001 and evaluated two years later. The inbreeding depression varied among the clones and was in average 17.5% for the circumference at breast height and 4.0% for the wood basic density. In most cases, it was possible to select F2 generation trees with a better performance than their (F1) parents, indicating this strategy as promising for breeders to select superior plants.  abreeding  aquantitative genetics  aEucalipto  aMelhoramento  aCircumference at breast height  aCircunferência à altura do peito  aDensidade básica da madeira  aGenética quantitativa  aWood basic density1 aAGUIAR, A. M.1 aRESENDE, G. D. S. P.1 aRAMALHO, M. A. P.  tCrop Breeding and Applied Biotechnology, Viçosa, MGgv. 4, n. 4, p. 459-464, Dec. 2004.