01887naa a2200241 a 450000100080000000500110000800800410001910000190006024501050007926000090018450001380019352010020033165000200133365000230135365300230137665300310139965300300143065300220146065300200148270000270150270000250152977300910155419120522018-04-11       2011    bl uuuu     u00u1 u    #d1 aVERARDI, C. K.  aPrediction of direct and indirect genetic gains and genotypic correlations in rubber tree progenies.  c2011  aTítulo em português: Predição de ganhos genéticos diretos e indiretos e correlações genotípicas em progênies de seringueira.  aThe objective of this work was to estimate the genetic parameters, genotypic and phenotypic correlations, and direct and indirect genetic gains among and within rubber tree (Hevea brasiliensis) progenies. The experiment was set up at the Municipality of Jaú, randomized complete block design was used, with 22 treatments (progenies), 6 replicates, and 10 plants per plot at a spacing of 3x3 m. Three-year-old progenies were assessed for girth, rubber yield, and bark thickness by direct and indirect gains and genotypic correlations. The number of latex vessel rings showed the best correlations, correlating positively and significantly with girth and bark thickness. Selection gains among progenies were greater than within progeny for all the variables analyzed. Total gains obtained were high, especially for girth increase and rubber yield, which were 93.38 and 105.95%, respectively. Young progeny selection can maximize the expected genetic gains, reducing the rubber tree selection cycle.  aearly selection  aHevea Brasiliensis  aCiclo de seleção  aDirect and indirect method  aMétodo direto e indireto  aSeleção precoce  aSelection cycle1 aSCALOPPI JUNIOR, E. J.1 aGONÇALVES, P. de S.  tPesquisa agropecuária Brasileira, Brasília, DFgv. 46, n. 9, p. 1076-1081, set. 2011