Abstract
This project was carried out at the Safiabad Agricultural Research Center of Dezful during 2011–12. Three graft methods are investigated in this project: cleft graft with hot cable system five times from late October till mid-February, cleft graft with polyethylene bag, and side-stub five times from early November till early March. For each grafting method, scion wood of ‘GraTex’, ‘Wichita’, ‘Choctaw’, ‘10J’ and ‘GraKing’ pecan cultivars were grafted onto two-year old seedling rootstocks 1–1.5cm in diameter. The best graft time was from late January till late February using the cleft graft with hot cable system graft method and from mid-February till late March using the cleft graft with polyethylene bag grafting method. Also, the highest percentage of graft success was achieved using ‘Wichita’ scion (92%), while ‘10J’ had the lowest percentage. The side-stub grafting method was unsuccessful compared to the other two methods and percentages of graft success for different cultivars using this method were below 20%.
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