A comparative study of vineyard phenology and pollen metrics extracted from airborne pollen time series

作者：Cunha Mario^*; Ribeiro Helena; Costa Paulo; Abreu Ilda

来源：Aerobiologia, 2015, 31(1): 45-56.

DOI：10.1007/s10453-014-9345-3

• Pollen emission model
• Airborne pollen metrics
• Pollen season
• Grapevine
• Phenology
• Crop yield forecast

Airborne pollen emission model was used to determine pollen metrics and to examine their relationship with vineyard phenology in two wine regions of Northern Portugal: Vinhos Verdes (1993-2007) and Douro (1992-2011). A number of airborne pollen metrics were obtained through the rate of changes of logistic model adjusted to the time series of airborne pollen. In both regions, the mean absolute differences between observed phenology and model-predicted values for start, peak and final of flowering phenophases were always lower than 5 days and the slope of the regression through the origin is close to one. These metrics can be used to accurately and precisely predict the dynamic of Vitis flowering observed at field level. The model's simplicity and flexibility are of great advantage for its practical use in aerobiology.

• 出版日期2015-3