We present a protocol for counting durum wheat and barley ears, using natural color (RGB) digital photographs taken in natural sunlight under field conditions. With minimal adjustments for camera parameters and some environmental condition limitations, the technique provides precise and consistent results across a range of growth stages.
Fernandez-Gallego, J. A., Buchaillot, M. L., Gracia-Romero, A., Vatter, T., Diaz, O. V., Aparicio Gutiérrez, N., Nieto-Taladriz, M. T., Kerfal, S., Serret, M. D., Araus, J. L., Kefauver, S. C. Cereal Crop Ear Counting in Field Conditions Using Zenithal RGB Images. J. Vis. Exp. (144), e58695, doi:10.3791/58695 (2019).