Was considered the repeatibility coefficient in characters of raceme in açai palm (Euterpe oleracea Mart.) at Belém-PA with the intention of determining their capacity to express the genetic variability of that fruit bowl. For that were picked four racemes by plant, all presenting complete maturation, in 30 genotypes belonging to the Collection of Germplasm of Açai palm of Oriental Amazonian Embrapa, where six characters were evaluated: weight of the raceme (PTC), weight of fruits per raceme (PFC), number of fruits per raceme (NFC), rachilles number per raceme (NRC), weigh medium of the fruit (PMF) and revenue of fruits ber raceme (RFC). The analysis of the repeatibility, of the number of necessary measurements and of the coefficient determination for each character was obtained through the method of the variance analysis using the model with two variation factors. It was verified that all the characters presented significant differences among genotypes, with the number of fruits, rachilles number and medium weight of the fruit being at the level of 1% of probability. However, the largest repeatibility coefficient was registered for medium weight of the fruit, while the others presented inexpressive values. That variable also had the largest determination coefficient. Meanwhile to the number of replications desirable for that character should be almost the triple of used in this study. The fact of the repeatibility coefficient expresses the maximum value of heritability can be concluded that PMF could be used as a selection parameter in less rigorous improvement methods.
genetic variance; environmental variance; heritability; selection
