TY - JA AU - Prem Sagar Mathangi AU - Pieters,A. AU - Reynolds,M.P. AU - Asch,F. TI - Extending physiological screening beyond the flag leaf: a canopy-wide approach to Wheat resilience under contrasting field conditions PY - 2025/// CY - India PB - Indian Society of Agriculture Science and Technology for Rural Empowerment KW - Wheat KW - AGROVOC KW - Drought KW - Resilience KW - Canopy N1 - Peer review; Open Access N2 - Understanding wheat's response to drought requires more than focusing on the flag leaf. In this study, 72 elite genotypes were assessed under irrigated and drought field conditions in Obregón, Mexico, using high-resolution phenotyping tools to quantify physiological responses across the full canopy including flag, second, and third leaves. Parameters such as SPAD chlorophyll content, PRI, quantum yield, stomatal conductance, light interception, and pigment-specific spectral indices were measured, alongside soil moisture profiles. Results revealed distinctive patterns in each canopy layer, with lower leaves playing a supplementary yet measurable role in maintaining canopy function under stress. This study highlights the need for integrating full-canopy physiological evaluations into breeding strategies for climate resilience UR - https://hdl.handle.net/10883/36229 T2 - Current Innovation in Agriculture Science DO - https://doi.org/cias/sfy43dga ER -