Repeatability based on growth behavior ofjabuticabeira tree genotypes

Juliana Cristina Radaelli, Alexandre Hack Porto, Américo Wagner Júnior, Lucas da Silva Domingues, Sergio Miguel Mazaro, Idemir Citadin
2018 Revista Brasileira de Fruticultura  
The aim of this study was to estimate the coefficients of repeatability and determination and the minimum number of evaluations able to provide certainty levels of prediction of the real value of these individuals through stem length and the length of primary shoots in 29 jabuticabeira genotypes. The stem length and the primary shoots were evaluated between July 2012 and June 2015, representing three growth cycles. The determination of the repeatability coefficients, determination coefficients
more » ... nd the number of measurements required to predict the genotypes true value were performed by multivariate principal component methods based on the variance and phenotype covariance matrix. The repeatability and determination coefficients obtained are relevant for the growth traits of jabuticabeira tree genotypes evaluated. With the three evaluations carried out, it is possible to select the jabuticabeira tree genotypes with 95% accuracy for a variable stem length and with 85% for the variable shoots length, but for the same level of significance would still require 5 more evaluations.
doi:10.1590/0100-29452018462 fatcat:5zbcrwjncfc7ldcq6as6fl6ivy