A GDD-constrained allometric framework for UAV-based estimation of winter wheat aboveground biomass - Xinglong Duan; Bokun Hao; Zhigang Wang; Yidan Ding; Yufei Wang; Qianyu Wang; Zhenwei Yang; Chenbo Yang; Yu Zhao; Chao Wang; Lujie Xiao; Meijun Zhang; et al. (Computers and Electronics in Agriculture, 2026)