Effect of 2,4-D pre-treatment on quality during ripening of on-tree longan fruitYunfen Liu, Lingyan Liao, Feilong Yin, Boyang Guan, Hongmei Pu, Chao Kang and Liang ShuaiE3S Web Conf., 251 (2021) 02031DOI: https://doi.org/10.1051/e3sconf/202125102031