In order to improve the cold resistance of cucumber seeds, speed up seedling, enhance the ability of seedlings to adapt to low, the germ low temperature exercise can be carried out.
The specific method is to wrap the freshly broken mouth seeds in cloth for 12 hours at -1―-2℃ low temperature, and then place them under 18―22℃ conditions for 12 hours, so that they are processed repeatedly for several days. Low temperature can control the length of the buds, save nutrient consumption, so that the colloidal properties of protoplasm change; High temperature promotes decomposition and maintains seed vitality.
During the exercise, the seeds should be kept moist, when the seeds are put back to the high temperature to thaw the seeds to open the cloth bag to view the seeds, cucumber seeds can exercise 2―3 times. In addition, some other seed treatment such as natural dehydration treatment, drought exercise, seedling spraying exogenous abscisic acid can improve the ability of cucumber seeds to withstand low temperature.