High-throughput phenotyping as an auxiliary tool in the selection of corn hybrids for agronomic traits

High-throughput phenotyping (HTP) using vegetation indices (VIs) is an important data source for managing plant breeding programs and can be a promising tool in indirect selection. This study hypothesized that VIs are correlated with agronomic traits corn, therefore, HTP auxiliary selecting superior genotypes. The objectives were: i) to analyze the association between VIs, ii) identify corn hybrids evaluated multivariate techniques. Ten (AGRI 330, AGRI 340, FS575PWU, KTZ006VP3, MG545AW, MG580PW, MG711PW, MZ1780, MZ1952, TROPI 102) were height (PH), stem diameter (SD), grain yield (GY). studied NDVI, NDRE, EVI, GNDVI, SAVI, MSAVI. Pearson’s correlation network was constructed relationship variables, canonical analysis performed verify inter-relationship variables hybrids. strongly positively each other PH. most productive FS575PWU KTZ006VP3. Hybrid MZ1952 has higher correlations findings reveal excellent agronomically genotypes, being alternative increase efficiency.