Application of fluorescence spectroscopy for analysis of different onion varieties during storage in storehouse

The present study aimed to establish the application of fluorescence spectroscopy for a comparison of three onion genotypes after harvest and at certain intervals of storage period. The genotypes were stored in a storehouse under ambient conditions. This will allow the method to be applied as non-invasive in quality control of onion production during storage. The experimental studies were performed with sixty-three accessions (21 after three months of storage, 21 after 6 months of storage and 21 after 9 months of storage). The equipment for emission fluorescence spectra generation is mobile and has applicability in local characteristics of the production. In its adjustment (optical tuning) a systematic engineering approach based on the classical principles of modern optoelectronics is applied. The results of the experiment will contribute to the optimization of the time for analysis of onion genotypes and will support the breeding process in its initial stages when it is necessary to qualify a large set of samples.