2. Castanea henryi grafting: Castanea henryi can be used as rootstock to graft Castanea henryi, but the affinity between them is weak. The survival rate of the first grafting is only 9.8%, and the success rate is very low. But the survival rate can reach 80 if you try again. Generally, grafting is carried out in spring, and grafting adopts branch grafting.
3. Castanea mollissima grafting Quercus acutissima: Castanea mollissima grafting Quercus acutissima is generally grafted in spring, because the affinity between the two is not strong, the success rate will not be high, but it can still survive. Grafting is generally used.
4. Grafting of Castanea mollissima and Oak: Grafting of Castanea mollissima and Oak was carried out from the end of May to the beginning of June. Generally, single bud grafting is adopted, and the survival rate is generally high.