Scion bud removal delays leaf development but decreases graft success in pecan four-flap graft.

摘要

Pecan is a highly heterozygous outcrossing species which is normally propagated by grafting or budding onto seedling rootstocks. The four-flap or banana graft is commonly used by growers or research because of its high percentage of success, especially when employed by novice grafters. We removed scion buds before grafting in an attempt to delay budbreak, thus providing more time for vascular connections to form before leaf development and its associated demand for water takes place. Removal of buds from the scion wood was successful in delaying bud and leaf development, but did not increase graft success, and in one treatment actually lowered graft success..