柠檬桉(Eucalyplus citrioaora)原产澳洲北部沿海平原地区。在福建中部以南,台湾、广东、广西,贵州南部,云南南部,四川东南部低海拔地方均有栽培。既是速生用材树种,也是优良的芳草油树种和四旁绿化树种之一。为促进发展速生丰产的柠檬桉林,开展种源试验研究,选择适应性强,产量高的种源是十分必要的,它是良种化的重要途径之一。我场作为一个试验点进行了这项工作,现将柠檬 Eucalyplus citrioaora originates in the northern coastal plains of Australia. It is cultivated in the south of Fujian, Taiwan, Guangdong, Guangxi, southern Guizhou, southern Yunnan and southeast Sichuan. It is both a fast-growing timber species and one of the fine grass oil tree species and four greening tree species. To promote the development of fast-growing and high-yielding lemon eucalyptus forest, it is very necessary to carry out provenance test and select suitable and high-yield provenance. It is one of the important ways of improving seed quality. My field as a test point for this work, now lemon