Abstract: Grafting was made to study the effects of bur cucumber (Sicyos angulatus L. ) as rootstock on the growth physiology and stress resistance of cucumber plants, using bur cucumber and black seed pumpkin (Cucurbita ficifolia Bouche. ) as rootstocks and Zhongnong 21 cucumber (Cucumis sativus L. ) as scion.
The results showed that the florescence date of the first female flower and first harvest date of the cucumber plants grafted on bur cucumber rootstock were ahead of the p lants grafted on black seed pumpkin rootstock and self-rooted cucumber. The effects of bur cucumber as rootstock on the mass of the first fruit, the number of female flowers on the main stem in 20 nodes, plant height, area of the biggest leaf, number of leaves, stem diameter, number of nodes were in the middle of the effects of black seed pumpkin as rootstock and self-rooted cucumber. The cold resistance and photosynthetic rate of the cucumber plants grafted on bur cucumber were higher than that grafted on black seed pumpkin and self-rooted cucumber. Cucumber grafted on bur cucumber
rootstock could increase yield, fusarium wilt and root-knot nematode resistance. The fruit qualities of cucumber plants grafted on bur cucumber rootstock were superior to that grafted on black seed pumpkin rootstock.

Key words: Bur cucumber, Sicyos angulatus L., Cucumber, Grafting, Growth physiology, Stress resistance