Multi-scale high-throughput phenotyping of apple architectural and functional traits in orchard reveals genotypic variability under contrasted watering regimes.

Results Characterization of tree architecture and effect on light interception efficiency Correlation between a_volume and TLA (Table 1 ), assessed on 20 trees with TLA ranging from 0.3 to 6.2 m2, was highly significant (R2 = 0.89, Fig. 1b ). a_volume was positively, highly significantly correlated to TCSA on the whole core-collection (Fig. 1c , R 2 = 0.43). a_volume was also highly correlated to pix_num estimated from the zenithal airborne images (Fig. 1d , R 2 = 0.47).

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