02175naa a2200289 a 450000100080000000500110000800800410001902400530006010000250011324501260013826000090026450001360027352012030040965000160161265000120162865000190164065000100165965000250166965000130169465000190170770000200172670000230174670000250176970000170179470000230181177300510183421296232021-01-27       2020    bl uuuu     u00u1 u    #d7 ahttps://doi.org/10.1590/0103-8478cr201909762DOI1 aSILVA, J. O. da C. e  aEstimates of genetic parameters, genetic variability, and selection in the S1 generation of peach.h[electronic resource]  c2020  aTítulo em português: Estimativas de parâmetros genéticos, variabilidade genética e seleção em geração S 1 de pessegueiros.  aThe growing of peach in mild winter regions is made viable through the use of genotypes that have low need for cold conditions, and this is one of the main aims of breeding for these regions. Thus, the aims of this study were to estimate genetic parameters, evaluate genetic variability, and select families adapted to mild winter regions in the S1 generation of peach through mixed model methodology (REML/BLUP). For that purpose, 22 populations, 84 families, and 2090 individuals were evaluated for the following traits: bud burst rate (BR), node density (ND), plant height (PH), and trunk diameter (TD). Genetic variability was found for all the traits. Individual heritability in the broad sense was of low and medium magnitudes. The PH trait had positive genotypic correlation of high magnitude with TD. The ND trait had moderate negative genotypic correlation with PH and TD. Clustering by the Tocher method resulted in the formation of six mutually exclusive groups. Considering selection intensity of 25%, simultaneous selection for BR, ND, and TD led to predicted gains of 11.3% for BR, 9.7% for ND, -14.2% for PH, and -14.3% for TD, showing the great potential of the germplasm evaluated.  aFruit trees  aPeaches  aPlant breeding  aFruta  aMelhoramento Vegetal  aPêssego  aPrunus Persica1 aBRUCKNER, C. H.1 aCARNEIRO, P. C. S.1 aRESENDE, M. D. V. de1 aALVES, R. S.1 aSILVA, D. F. P. da  tCiência Ruralgv. 50, n. 10, e20190976, 2020.