Representative ears from the biological and environmental diversity panels. A The biological diversity panel is mainly composed of lines and partially of non-commercial hybrids, with each ear often being a unique case. B The environmental diversity panel is composed of commercial hybrids obtained in an experimental context with biological treatments (well-watered and water deficits) and replications. These ears were selected to provide sufficient sampling to scan the full range of phenotypes encountered in a conservation context (A) and a production context (B) from optimal to near-zero (scattered ears). Dotted box, examples of scattered ears, which have incomplete cohorts all along the ear. White bar, 2cm.