budwood 
noun [mass noun]
Short lengths of young branches with buds prepared for grafting on to the rootstock of another plant.The farms had received budwood from a nursery in the quarantine area in central Queensland....
- The team made budwood - for grafting - available to breeders and nurseries for the first time last year.
- Cuttings for budwood are taken when the vines are dormant and no leaves are present to show symptoms, making it impossible to distinguish healthy from infected plants.