"Outcomes of this study suggest that a ground sampling distance (GSD) close to the plant dimensions is the optimal spatial resolution for relating spectral signatures to plant productivity."—Peter et al. 2020
Peter, B. G., Messina, J. P., Carroll, J. W., Zhi, J., Chimonyo, V., Lin, S., and Snapp, S. S. Multi-spatial resolution satellite and sUAS imagery for precision agriculture on smallholder farms in Malawi. Photogrammetric Engineering & Remote Sensing (PE&RS).