自 1994年春起 ,福建省农科院果树所选用立冬本为母本、青壳宝圆为父本 ,在国内外率先开展龙眼有性杂交育种研究 ,育成综合经济性状优异的杂交龙眼新株系——冬宝 9号 ,其主要性状为特晚熟 (福州地区 10月中旬至 11月上旬成熟 ) ,果实特大 (18.3～ 18.5 g) ,可食率高 (71.3%～ 73.9% ) ,可溶性固形物含量高 (19.5 %～2 2 .6 % ) ,肉质爽脆 ,不流汁 ,风味佳。以上优良性状呈现出超双亲的趋势。此外 ,还表现早结丰产等优良性状。其无性子 1代基本上保持其母树的优良性状 ,是一个很有前途的特晚熟大果型优质杂交龙眼新株系 Since the spring of 1994, the fruit trees of Fujian Academy of Agricultural Sciences have chosen Lubei as the female parent and the green shell Baoyuan as the male parent. They took the lead in domestic and foreign research on sexual hybrid breeding of longan and bred new hybrid longan strains with excellent comprehensive economic traits - - Dongbao 9, its main traits are extra-late ripening (Fuzhou region from mid-October to early November mature), the fruit is extra large (18.3-18.5 g), edible rate is high (71.3% -73.9%), soluble solids content High (19.5% ~ 22.6%), crisp meat, no juice, good flavor. The above excellent traits show a tendency of super parents. In addition, the performance of early yield and other excellent traits. Its asexual 1 generation basically maintained the fine traits of its parent tree, is a very promising late-late large-type high-quality hybrid longan new lines