The objective of this study was to evaluate the performance of genotypes of upland rice using mixed models methodology. Were evaluated data from yield tests of value for cultivation and use (VCU) from the cooperative improvement program of upland rice, developed in Minas Gerais during 1997/1998 to 2007/2008. Analysis of deviance was done to test the significance of the effects of genotypes and their interactions with sites and years, being obtained the stability and adaptability genotypic using the methods of the harmonic mean of genotypic values. The effects of genotypes, genotype x sites and genotype x year were statistically significant (p < 0.05). The lines and cultivars Curinga-3, CNA 8983, Guarani, BRSMG Caravera and CNA 8824 were more stable, with greater adaptability, stability and yield, while the highlights were the BRSMG Caravera, Curinga-3, MG 1089, MG 1097 and CNA 8436. The BRSMG Caravera among all the cultivars and lines evaluated from 1997 to 2008, showed the best performance by MHPRVG, ie, greater stability, adaptability and yield while providing rice farmers from Minas Gerais a better crop.
Oryza sativa; REML; BLUP; adaptability; genotypic stability
