Relationship between the normalized difference vegetation index and leaf area in vineyards

Amanda Heemann Junges, Denise Cybis Fontana, Cristian Scalvi Lampugnani
2019 Bragantia  
temporal analysis and Pearson correlations (p < 0.05). The results indicated that NDVI variation over time is coherent with the leaf area dynamics and expresses biomass variations due to phenology and management actions. The NDVI evolution pattern is described by a quadratic regression equation: the index increases rapidly at first (September to November), followed by a relative stabilization (December to February), and decreases in the final stage (March to May). The correlations were higher
more » ... the initial and final stages of the cycle, especially for NLB (r = 0.73 and 0.77), PLA (r = 0.60 and 0.61) and CI (r = 0.48 and 0.84), which are promising parameters for characterizing leaf area in vineyards by remote sensing.
doi:10.1590/1678-4499.2018168 fatcat:2nkmskh2ujbedoqvgwf4b36evq