The higher compatibility rootstocks of melon were selected and the influence of different rootstocks on increasing the cold resistance of grafted melon seedlings was investigated. The influence of different rootstocks on chilling tolerance of grafted melon seedlings and its physiological mechanisms were studied, including chilling injury index, content of chlorophyll, MDA, and electrolytic leakage under the different temperature (13°C/8°C, 9°C/4°C, 25°C/15°C) conditions. At the same time, Pumpkin ‘Japanese Cedar F1’, ‘Japanese Developed Root Sprouts Wood’, ‘Alam’ was used as rootstock for melon ‘Haojie 6’ in this experiment, and the own-root seedling was used as control. The results showed that Pumpkin ‘Alam’ used as rootstock material could improve the survival rate of grafted seedlings and the chilling tolerance of melon seedlings significantly.

No abstract