Artificial Neural Networks (ANNs) application to predict occurrence of phenological stages in wheat using climatic data

1Agricultural Meteorology Department of Agronomy and Horticulture University of Nebraska-Lincoln, USA. 2Department of Irrigation and Reclamation Engineering College of Agriculture, University of Tehran, Karaj, Iran 3Department of ElectricalEngineering K.N. Toosi Technology University, Tehran, Iran. 4Department of Irrigation and Reclamation Engineering College of Agriculture, University of Tehran, Karaj, Iran