The cellular type endosperm of loquat Eriobotrya japonica Lindl. Varieties at the developmental stages have been employed in tissue culture sinoe 1979. Results from the experiments showed that the callus could bo induced from the endosperm after inoculated to B_5 basal media added to various concentrations of BA and 2.4-D or NAA after two weeks. A number of embryoids were formed on the surface of the'callus. The embryoids under favorable conditions further developed into plantlets. Those callus without embr...