Abstract: The technical system of rapid propagation of tea clonal seedling biannually in auto-controlled greenhouse were reviewed and the environment controlling scheme designed according to the effects of various environment variables on the photosynthesis and growth of tea seedlings. Also, the background and the significance of this study were introduced. By establishing a direct rooting method of tea tissue culture seedlings in the greenhouse media, the two stages of tissue culture and soilless culture for tea rapid propagation were joined closely and efficiently. By applying the environment controlling scheme based on the result of physiological ecology studies, the duration of tea clonal seedling propagation was shortened to about 180 days, and the objective of propagating tea seedling biannually was achieved. Meanwhile, the prospect of rapid popularizing tea newly bred varieties using this technique was discussed.

Key words: Tea(Camellia sinensis) , Clonal seedling , Rapid propagation