Enhancement of the prediction of the openness of fresh-cut roses with an improved YOLOv8s model validated by an automatic Grading Machine - Lai, Qinghui; Yang, Zhanwei; Su, Wei; Yan, Chuang; Zhao, Qinghui; Tan, Yu; Que, Yu; Zheng, Jing (Frontiers in Plant Science, 2025)