In this experiment，14 rootstock-used pumpkin cultivars were taken as material．They were
treated with drought condition at germination（ 23% PEG-6000） and seedling stages（control the amount of
watering），respectively．Their drought resistance was analyzed by unweight pair-group method with arithmetic
means（ UPGMA） cluster．Eleven property indexes，including germination potential，germination rate，vigor
index，germination index at germination stage；stem thickness，plant height，leaf area，fresh weight，dry
weight，drought injury index，sound seedling index at seedling stage，etc． were measured．The rootstock-used pumpkin cultivars could be divided into 4 types at germination stage and seedling stage．They were drought
resistant，moderate drought resistant，moderate drought sensitive and drought sensitive．In both stages，higher
drought resistant cultivars were 9，including‘ Dawei No.10’，‘Jiahetaimu’，‘Jingan No.1’，‘Kunlun’，
‘Ribengenlishen’，‘Ribenlyuba’，‘Ribenqianglishi’，‘Shenzhen’ and‘ Shengli（white）’．The relative
germination rate，germination potential，germination index，vigor index，and plant height could be conducted as
credible indexes for drought resistance identification．The relative dry weight could also be used as useful indicators
for droght resistance identification．Through comprehensive analysis of these 14 cultivars in salt tolerance，cold
tolerance，heat tolerance and drought resistance，it was found that‘ Ribenlyuba’ and‘ Ribenqianglishi’ showed
strong multi-resistances，these 2 cultivars could be used as high-quality rootstocks in cucumber grafting.