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Grafting technique of Hongfeng

1. Acer truncatum can be propagated by grafting, with 2-4-year-old Acer truncatum seedlings as rootstocks. Cutting should be carried out in March-April, and the height of rootstock can be determined as required. Docking in rainy season from May to June, and cutting after defoliation in autumn. This method is only used for a few rare varieties. Bud grafting is the most common application, and the best time is from late May to late June and from late August to late September after autumn. 2. Early summer is the vigorous growth period of branches, and the full buds on the sunny short branches of Hongfeng are used as grafting buds with petiole length of 1 cm. The temperature is getting higher and higher after grafting. Although the grafting is wrapped with plastic tape, the buds and petioles are still exposed. In addition, red maple has thin cortex and small grafted buds. Therefore, it is necessary to spray moisturizing regularly after pressing to improve the survival rate. The method of budding after autumn is basically the same. After a week of grafting, if the petiole falls off as soon as it touches, it means it has survived, otherwise it should be patched.