6种景观大树嫁接及有关技术实践

Grafting Techniques on Aged Landscape Tree of 6 Species

为培育高价值景观大树,连续6年对红花檵木、红花紫薇、小叶女贞、台湾小叶榆、红枫、茶花等6个景观树种进行嫁接试验,从砧木大树移植、嫁接方法、管护技术、艺术造型等4个方面作了比较研究。结果表明,运用客土高培等有关技术措施可有效提高大树移栽成活率至92%以上。定向定植并辅助物理固定措施可有效防止砧木大树脱水性爆皮。嫁接口采用特制铁钉固定并加以保鲜膜覆盖等管护技术可提高大树嫁接成活率至86%以上。木质支撑引导树枝有利于加速接穗树枝顺势形成更高观赏价值。

In order to produce high quality landscape trees, the author had studied grafting techniques for 6 years. The author selected 6 high value landscape tree species, such as Lagerstroemia indica var. rubra, Ligustrum quihoui, Ulmus uyematsui, Aeer Camellia japonica. The author researched the aged trees palma chinense var. rubrum, turn ＂Atropurpureum＇, grafting techniques from four aspects such as transplant, grafting, the management and art shape. The results showed that planting on higher position and related technical measures could enhance the survival rate above 92% of transplanting significantly. Same directional with the original place and physical fixed auxiliary could prevent the big tree bark broken. The research also showed that using the special nail to fix and cover in plastic wrap, could improve the grafting survival rate above 86%. Wooden support could guide the branches build higher artistic ornamental value.