1Advances of haploid breeding techniques of cucurbit vegetables: In vitro culture of unpollinated ovaryHUANG Jinhua, DONG Yanqi, WANG Wenying, LIU Xicun, MA Xiaohong1-42The regeneration system from cotyledonary node of Cucurbita maximaZHANG Jiayi, LIU Xia, HU Fangfang, CHENG Yongan5-7,103The extraction and polarimetric determination of pumpkin polysaccharideCHEN Ping, JIA Xiaomei, MIAO Xiaoyan8-104Effects of different fruit setting methods on yield and quality of long-season protected cultivation of watermelonSU Xiaoling, HUA Qiyun, ZHAO Dongxu, CAO Cunxin, BIE Zhilong11-13,185Effects of luffa rootstock on growth, yield and fruit quality of cucumber under high temperatureWANG Ping, HAO Ting, ZHANG Hongmei, JIN Haijun, DING Xiaotao, YU Jizhu14-186A new eggplant F1 hybrid ‘Ningqie No· 5’ZHANG Yanyan, TANG Maohua, MIAO Qisong, LIU Yeqiong19-217A high yield and early maturing new white cucumber ‘Baiyucui’ZHAO Xin, KANG Junjun, ZHAO Qiguang, KANG Ling22-248Study on leaf area determination methods of muskmelonWANG Ying, YANG Zhongfa, XI Haoran, WANG Lingrui25-289Effect of boron nutrition on the quality of muskmelon fruitSUN Shuang, LIAN Hua, MA Guangshu, ZHANG Yu, SHI Yuan, QU Hongyun29-3310Cultivar comparison of summer squash, suitable for open field cultivation in autumn in HenanSHI Xingqing, DING Huanhuan, LIU Xiaoyun, LI Xiaohui34-3611@@37-38,4512@@39-4213@@43-4514@@46-47,5415@@48-49,5216@@50-5217@@53-5418@@5519@@前插1