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Relationship between Growth Traits and Spectral Vegetation Indices in Durum Wheat

^a Area de Cultius Extensius, Centre UdL-IRTA, Rovira Roure, 177, 25198 Lleida, Spain
^b Unitat de Fisiologia Vegetal, Facultat de Biologia, Univ. de Barcelona, Diagonal 645, 08028 Barcelona, Spain

View larger version (15K): [in a new window]   Fig. 1. Patterns of the relationships between leaf area index (LAI) and vegetation indices across experiments and growth stages. Vegetation indices studied were the normalized difference vegetation index (NDVI) and the simple ratio (SR). Each point represents the mean value of a genotype in a given experiment and growth stage, from Stage 45 to Stage 75 (n = 400).

View larger version (15K): [in a new window]   Fig. 2. Relationship between the coefficients of determination of the best-fit equations for the relationships between leaf area index (LAI) and vegetation indices [normalized difference vegetation index (NDVI) and simple ratio (SR)], and the range in LAI between genotypes in each case.