It regarded stem tip of Tillered-onion as explants,on the basis of the technical exploration of tissue culture in Tillered-onion,it adopted the pathway which induced test-tube seedlings from explants then induced bulblets,after this,it explored the technique of micropropagation which proceeded from the condition of tissue culture,in order to solve the malady in traditional technique of interface,and provided factory production of bulblets from virus-free seedlings,the conclusions were as follows:
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