The aim of this work was to evaluate the spatial dependency among the resistance scores of 98 maize progenies to the common rust (Puccinia sorghi) and its effects over the selection process. A randomized block design with 100 treatments (98 F2 progênies and two checks) was used. Models with independents and spacialy autocorrelated error were taken in account for the data analysis. The experiment showed a high spacial dependence. 23 progenies had been selected with the unadjusted means, and only 11 progenies showed the status of resistant, when the spacial dependence was take into account.
Plant breeding; selection; variance-covariance matrix; Puccinia sorghi
