“脐橙52”是福州市1982年从中国柑桔研究所引入的区试脐橙品系之一,是我所科技人员与市技术推广部门的技术人员多年合作,自闽候县的白沙镇区试点纽荷尔脐橙中选育出来的优良株系。其果实品质特优,果大无核,单果重180—270克,最大者400多克,果实椭圆形,脐小,多为闭脐。果实可溶性固形物13.2％。每100毫升果汁含糖量9.27％、含 “Navel 52” is one of the district trial navel orange lines imported from China Citrus Research Institute in 1982 in Fuzhou. It is a cooperation between our scientific and technical personnel and technical personnel from the municipal technology promotion department for many years. Since the trial of Baisha Town of Minhou County Holstein navel orange bred out of the excellent strains. The fruit quality premium, large non-nuclear fruit, fruit weight 180-270 grams, the largest of 400 grams, oval fruit, umbilical small, mostly closed navel. Fruit soluble solids 13.2%. Per 100 ml juice sugar content 9.27%, containing