Cucurbit Genetics Cooperative Report 21:16-17 (article 6) 1998 Meng Zhang, Hongwen Cui and Sheng Zhao Department of Horticulture, Northwestern Agriculture University, Yangling, Shaanxi, 712100, P.R. China Introduction. Heat tolerance of cultivars in cucumber is a very important character for mid-summer and early autumn production in north China (1,2). If one could distinguish the tolerance of […]