Testing of a local approach for the prediction of quality parameters in intact nectarines using a portable NIRS instrument

▶ To develop robust and accurate models for quality prediction is a critical challenge. ▶ A LOCAL algorithm is valuable in minimizing error in NIRS models for firmness. ▶ LOCAL offered no advantages over MPLS other quality parameters tested. ▶ The structure and distribution of the database must show all spectral variability. ▶ Hundreds of highly heterogeneous nectarines are needed to show natural fruit variability.