Crop breeding device

The invention relates to the technical field of crop breeding, and discloses a crop breeding device. The crop breeding device comprises a breeding box, wherein the breeding box is provided with a breeding chamber, a water receiving tray, a breeding groove, a water leakage hole, a window, a sealing door, a fluorescent lamp, a heating lamp, a water spraying pipe, a spray head, a main water pipe, a liquid storage tank, a control panel, a first air pump, a second air pump, a temperature treatment box, a water pump, a water inlet pipe, a cover, a vent hole, a first air inlet pipe, a first air outlet pipe, a second air outlet pipe, a third air outlet pipe, a second air inlet pipe, a first branch pipe, a second branch pipe, a third electromagnetic valve, a cold treatment chamber, a heat treatment chamber, an electric heating wire heating rod, a third branch pipe, a fourth branch pipe, a cooling rod, a cooling cavity, a refrigeration sheet, a third air inlet pipe, a fourth air outlet pipe, a third air pump, a fourth