Salt tolerance pumpkin rootstock seed breeding method for cucumber grafting cultivation

The present invention discloses a salt tolerance pumpkin rootstock seed breeding method for cucumber grafting cultivation. The method is characterized by comprising: 1, obtaining a China pumpkin inbred line; 2, obtaining a China pumpkin hybrid; 3, carrying out selection identification on salt tolerance of the China pumpkin hybrid; and 4, carrying out selection identification on field salt tolerance of the grafted cucumber, wherein 1-2 salt tolerance China pumpkin rootstock varieties for cucumber grafting cultivation are finally determined with the steps. The cultivated pumpkin salt tolerance rootstock variety has the following salient characteristics that: the salt tolerance is good; after the bred cucumber rootstock is grafted, the obtained grafted cucumber plant can grow well in the protection ground soil under a condition of salt content of 0.5%, and grow better compared with the grafted cucumber plant grafted with the main rootstock cucurbita ficifolia in the current production; and the yield is increased