Modeling Potential production and yield gap of potato using modelling and GIS approaches

The significance results of the paper to the readers of the Ecological modeling is:•This is the first report to analysis of potato potential yield, yield gap based on GYGA protocol in Iran.•According to the results, the average Yp was 67.3 t. ha-1 and actual yield (Ya) was 30 t ha-1.•Iranian farmers produced 5 million tons of potato from about 164000 ha. If they can obtain only 80% of Yp (53.8 t. ha-1), amount of potato production will be 8.8 million tones.•As result, they can produce 5.2 million tons tuber yield of potato in 97000 ha cultivation area. Thus, with closing yield gap and increasing potato production, it is possible to decrease potato lands.