I met Mr. Zahar who works at the Agricultural Park in Kuantan and has a fruit tree nursery. With Jackfruit he prepares the rootstock in the morning and waits 3 hours before he joins the new scion wood to the rootstock. Remove all the leaves off the rootstock. It is wedge grafted when the buds start shooting. One day before they graft, he will make some scars on the trunk of the rootstock. His sharpening tool is a warm stone, quite chalky - it comes off white in your fingers. Because of the tropical climate he can graft Mango and Chempedak all year round. The scion wood is quite long at about 8 inches – 20cm. He says that if the scion is too short on the mango the success rate is low. You can graft anywhere – either in the green or at the brown hardened off stage. He only wraps the graft and then puts the long plastic cover over the graft. After grafting Duku, Longkong, & Mangosteen he keeps them in 80% shade but once they start to grow, he moves them outside. Carambolas are lopped at 2½ mtrs and grown wide. A side wedge is used for Calamondin and this can be used at any time of the year. Grafted trees sell for 5–10 ringgit (75cents - $3.00) which is very cheap. Aishah said that of the 70 Chempadek seedlings she has, there is no variation in the fruit.
Kwai Muk rootstock can be used for Breadfruit.
Grafting Techniques can be seen on this website: http://myfruits.mardi.my/main.php