一.引言茶樹採用無性繁殖,不僅可以保持優良品種的固有特性,而且大大地縮短了育苗的時間;在育種工作中,特别是對結實困難而品質優良的水仙、大白茶等品種的繁殖,具有極大的意義。茶樹在無性繁殖方法中,以扦插較有應用價值,可以獲得大量的苗木,又兼方法簡單。但茶樹的插枝,發根相當困難,一般須經3—4個月,才能生根成活,管理極感不便。因此在大量繁殖優良品種中,探求促進插枝的提早發根,而減少苗床管理的時間,實為一個有研究價值和急待解决的問題。自從人工合成的植物生長刺激物發現以後,它已有效地應用在農業生產的實踐上。對促進植物插枝的發根,也早被肯定有良好的效果。茶樹的插枝,既屬發根困難的一種,如能利 I. Introduction The use of asexual reproduction of tea tree not only can maintain the inherent characteristics of fine varieties, but also greatly shorten the time of nursery; in breeding work, especially for hard and good quality of the Narcissus, white tea and other varieties of reproduction, Has great significance. Tea tree in asexual reproduction methods, cutting more application value, you can get a lot of seedlings, but also the method is simple. However, the cuttings of tea trees, hair roots quite difficult, usually after 3-4 months in order to take root, management inconvenience. Therefore, in breeding a large number of fine varieties, to explore the promotion of cuttings early hairy roots, and reduce the management of seedbed time, in fact, a research value and urgent problems to be solved. Since the discovery of synthetic plant growth stimulants, it has been effectively used in agricultural production practices. Hair root on the promotion of plant cutting, but also has long been affirmed a good effect. Tea tree cuttings, both a difficult root hair, such as benefits