Fig. 1: Decision tree for crop cultivar and species parameter approximation.
From: Climate-crop models to support opportunity crop adaptation in Africa

The decision tree follows the logic of descending reliability to minimize uncertainties from existing model parameters, field experiment data, FAO data, and expert knowledge. a expert knowledge was not the sole justification for the parameters since we have either field experiment data and/or FAO country level data available for all crops investigated, but we still include this panel to make the decision tree complete, b this step is bypassed if there is no existing FAO country/continent level data for a specific crop.