脐血橙是六十年代从摩洛哥引入的优良品种。在试种中表现果实品质好和晚热等性状,有推广前途。但是这个品种的植株普遍受裂皮病感染。在用枳或(木黎)檬(如广西的土柠檬)作砧木时,砧木树皮严重开裂,植株显著矮化、衰退,产量很低,甚至整株死亡。在用耐病的红桔或酸桔作砧木时,植株 Umbilical blood oranges are the fine varieties introduced from Morocco in the 1960s. Performance in the trial of good quality and late-heat fruit and other traits, promote the future. However, the plants of this variety are generally infected with split-skin disease. In the use of trifoliate orange or lemon (such as Guangxi lemon soil) as rootstock, the rootstock bark serious cracking, the plant significantly dwarf, recession, the yield is very low, even the whole plant died. When using resistant red tangerines or sour oranges as rootstocks, plant