Longan grafting method

Longan grafting includes single bud grafting and tip grafting. Single-bud cutting is to cut the top of the rootstock at the height of 17 cm from the ground, cut the scion into a long and a short single bud, then insert the long section inward into the rootstock and completely wrap it. The tongue-shaped grafting is cut at a height of 45 cm from the ground, the thickness of the scion is the same as that of the rootstock, and the length is 7 cm, then it is cut into inclined planes in the opposite direction, and then it is cut into inclined planes.

Longan grafting can promote longan to enter the fruiting period in advance, and it can blossom and bear fruit as long as the external conditions are suitable. Moreover, grafting longan can not only breed better seedlings faster, but also enhance the adaptability of longan to the environment and concentrate the advantages of scion and rootstock.

Longan grafting time

Longan is usually grafted in March-April in spring or September-65438+1October in autumn, and the best grafting time is in March, because when the temperature is above 15 degrees, the grafted longan has higher survival rate, faster growth rate and easier grafting interface healing.

Grafting technology of longan

1. Single bud cutting

Cut off the top of the rootstock at a height of 65,438+0.7 cm from the ground, cut it down to 65,438+0.5 cm in the outer cortex, cut the scion into a single bud with a long section and a short section, then insert the long section inward into the rootstock, then completely wrap it, and check whether it survives 2-3 weeks after grafting.

2. Lingual joint

Cut the top at a height of 45cm from the rootstock, flatten the incision, then cut it to a depth of 3cm in the longitudinal direction, then cut a knife from the bottom of the rootstock, the thickness of the scion should be the same as that of the rootstock, and the length should be 7cm, then cut it into an inclined plane in the opposite direction, and then insert the scion and the rootstock to embed it tightly, and finally wrap it with a plastic film.