The aim of this research was to estimate the genetic parameters and correlations associated to the agronomic traits of yellow passion fruit (Passiflora edulis Sims), to predict the expected genetic progress with the direct selection and based on selection index, as well as to suggest a strategy to accumulate genetic gains in the recurrent selection cycles. Twenty six half-sib progenies originated from the recombination of selected genotypes from the first cycle of selection via design I were evaluated, which represents the improved population, UENF/MA1. The randomized complete block design with two replications and five plants per plot was used. Evaluations were made from February to July 2007 for five agronomic traits. Data of plot means were considered for statistical analysis. The genetic parameter estimates and correlations, as well as the selection based on the selection index made possible the identification of progenies with high performance for several traits, simultaneously. Besides, the strategy may constitute an alternative of accumulating genetic gains in yellow passion fruit recurrent selection, increasing the efficiency of the selective process and its use in fruit improvement programs, once it allows genetic gain in two (generation and progeny tests) of the three recurrent selection steps.
Passiflora edulis; selection index; genetic parameters
