JA Schrader, PA Domoto, GR Nonnecke, DR Cochran | 2020
An accurate predictive model for estimating the timing of seasonal phenological stages of grape ( Vitis L.) would be a valuable tool for crop management. Currently the most used index for predicting the phenological timing of fruit crops is growing degree days (GDD), but the predictive accuracy of the GDD index varies from season-to-season and is considered unsatisfactory for grapevines grown in the midwestern United States.