Kadota M,Niimi Y.Effects of cytokinin types and their concentrations on shoot proliferationand hyperhydricity in in vitro pear cultivar shoots[J].Plant Cell Tissue and Organ Culture.2003,72:261-265
Lane W D,Iketani H,Hayashi T.Shoot regeneration from cultured leaves of Japanese pear(Pyrus pyrifolia)[J].Plant Cell Tissue and Organ Culture.1998,54:9-14