Standardization of vegetative propagation in Terminalia chebula Retz. for germplasm conservation

Terminalia chebula Retz. is a multipurpose tree but the primary purpose of cultivating and raising this tree species is its fruits. Large sized fruits easily fetch higher prices in the national and global markets. The availability of superior germplasm is, however, restricted by its very low natural regeneration, poor germination capacity of the seeds, very little knowledge about its propagation techniques, long juvenile period for fruits production which is almost 15–20 years. The availability of superior germplasm and shortening of long juvenile period can be resolved by the adoption of various vegetative propagation techniques. In the present study, scions of T. chebula Retz. were grafted on three different rootstocks; T. chebula Retz., Terminalia bellirica Roxb. and Terminalia arjuna Bedd to standardize vegetative propagation techniques in T. chebula. The grafting and budding methods used were cleft grafting, side-veneer grafting and patch budding. The results revealed that out of all the propagation techniques evaluated under nursery conditions, cleft grafting was most promising. It showed better results on principal parameters like graft survival ratio (46.67) and graft take ratio (60.00). In case of rootstocks, T. arjuna performed well on most of the growth parameters. Hence, it is concluded that T. arjuna as a rootstock can be cleft grafted with T. chebula Retz. scion not only to obtain healthy plants with desired characteristics in a short time but also to conserve its germplasm.