In 2006 an experimental trial started in the collaboration among ERSA, the Viticolori La Delizia Winery and the Department of Life Sciences of the University of Trieste, with the aim to obtain a yield forecasting model based on airborne/remote indices and field measurements. Beside the classic NDVI, some other indices very sensi t ive to leaf area (MCARI, MTVI) or to chlorophyll content (TCARI, TCARI/OSAVI) were computed. In few vineyards, several plots were considered and yield and quality parameters assessed, in order to calculate their correlations with the computed indices. In 2007 and 2008 high-resolution images were obtained using an AISA EAGLE sensor mounted on a helicopter, while in 2006 and 2008 satellite images with low resolutions were acquired (IKONOS and ASTER, respectively). TCARI, TCARI/OSAVI and MCARI revealed to be the most interesting as best forecasting yields both in Pinot gris and in Cabernet Sauvignon.
Previsione delle produzioni e indici multispettrali: buoni risultati con il TCARI/OSAVI
ALTOBELLI, ALFREDO;
2012-01-01
Abstract
In 2006 an experimental trial started in the collaboration among ERSA, the Viticolori La Delizia Winery and the Department of Life Sciences of the University of Trieste, with the aim to obtain a yield forecasting model based on airborne/remote indices and field measurements. Beside the classic NDVI, some other indices very sensi t ive to leaf area (MCARI, MTVI) or to chlorophyll content (TCARI, TCARI/OSAVI) were computed. In few vineyards, several plots were considered and yield and quality parameters assessed, in order to calculate their correlations with the computed indices. In 2007 and 2008 high-resolution images were obtained using an AISA EAGLE sensor mounted on a helicopter, while in 2006 and 2008 satellite images with low resolutions were acquired (IKONOS and ASTER, respectively). TCARI, TCARI/OSAVI and MCARI revealed to be the most interesting as best forecasting yields both in Pinot gris and in Cabernet Sauvignon.Pubblicazioni consigliate
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