In order to obtain new varieties,apple'Fuji'and two cultivars of pear'Jingbaili' and 'Gold Nijuseiki' were used for intergeneric hybridization.The fruit-set-rate of'Fuji'×'Gold Nijuseiki' was 4.83%,but the 'Fuji'×'Jingbaili' produced no fruits.The size of 'Fuji'×'Gold Nijuseiki' fruits was bigger than that of the control 17 days after pollination,but was smaller 24 days after pollination.The trend for the fruit shape of 'Fuji'× 'Gold Nijuseiki' was different from that of size.Immature embryos were excised 6...