Hyperspectral estimation on the photosynthetic phenotype of winter wheat under drought stress using machine learning algorithms - Yanxia Chen; Xiaobin Yan; Tingyue Huo; Yuchao Yang; Bei Tie; Chenhao Qin; Meichen Feng; Xingxing Qiao; Xiaokai Chen; Guangxin Li; Chao Wang; Wude Yang (Precision Agriculture, 2026)