Estimating the SPAD of Litchi in the Growth Period and Autumn Shoot Period Based on UAV Multi-Spectrum. - Jiaxing Xie; Jiaxin Wang; Yufeng Chen; Peng Gao; Huili Yin; Shiyun Chen; Daozong Sun; Weixing Wang 002; Handong Mo; Jiyuan Shen; Jun Li 089 (Remote. Sens., 2023)