Over the course of the growing season, plots were regularly inspected and phenology was determined visually according to the extended BBCH scale (Sosa-Zúñiga et al. 2017)
Reference
Sosa-Zuniga, V.; Brito, V.; Fuentes, F.; Steinfort, U. Phenological growth stages of quinoa (Chenopodium quinoa) based on the BBCH scale. Ann Appl Biol 2017, 171, 117-124. DOI: 10.1111/aab.12358