In vitro Propagation of Adiantum raddianum Fritz-Luethii
The sporophyllary leaves of Adiantum raddianum Fritz-Luethii were used as explants to study the process of rapid propagation in vitro.The results showed that the rate of the spore germination was 95.6% in 1/2 MS culture medium with 3 mg/L GA and the prothallus propagated at a speed of over 4 times in 1/2 MS culture medium without plant growth hormone.Sporophyte formation was almost impossible in tissue culture,but when prothallia were mixed with different solution and comminuted in a waring blender,and applied to soil,every group of prothallia produced over 1 000 sporophytes.