The survival rate of cucumber grafting is related to the type of rootstock, grafting methods and grafting technology, and it is directly related to the management technology after grafting. The focus of post-grafting management techniques is to create suitable light, temperature, humidity, and ventilation conditions for the grafted seedlings to accelerate healing of the interface and seedling growth.
1. Shading When cucumbers are grafted, they must be shaded with a shading net. The air humidity of the grafting shed must reach more than 85% to prevent the wounds from losing water and prevent direct light. The first three days must be fully sheltered to avoid sweeping winds. From the 4th day onwards, you can see the light sooner or later, and after seeing more light one after another until the grafted seedlings are not wilting, you can completely remove the cover.
2. The temperature within the seedbed is required to reach 24°C-27°C during the day and 20°C-22°C during the night, and not lower than 15°C. After grafting to survive, the temperature should be relatively reduced, during the day, 23°C-24°C and nighttime 16°C-18°C. One week before planting, the seedlings were cultivated at low temperature.
3. Humidity requires that the relative humidity of the air in the grafted nursery bed should be kept at 95%, that is, there can be small drops of water on the shed. If the humidity is small, you can add water, but to prevent the water from dripping into the graft interface, the infected bacteria will affect the survival.
4. The buds, roots, and grafts were grafted in a timely manner to graft cucumber seedlings by means of grafting. The rootstocks could still germinate new lateral buds. Therefore, after grafting, we should always inspect and timely eradicate germinating lateral buds to avoid competing for nutrients and affect survival rate. After planting for about 10 to 11 days after grafting, roots can be cut off. When cutting roots, it is necessary to completely prevent grafted seedlings from false living, and timely remove roots and remove grafting clips. When there are 4-5 true leaves to be grafted, they must be transplanted in time.
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