SHENG Bao-long, LI Xiao-gang, LIN Jing, WANG Zhong-hua, YANG Qing-song, LI Hui, CHANG You-hong. 2011: Physio-biochemical and ultrastructural characteristics in leaves of Huasu pear grown in polyhouse. Journal of Southern Agriculture, 42(9): 1049-1053. DOI: 10.3969/j.issn.2095-1191.2011.09.005