史密斯桉无性系桉叶出油率及成分分析  

Variation among Eucalyptus smithii Clones for Leaf Oil Components and Yields

作　　者：管朝旭 施彬 曾德贤 陈剑英 

机构地区：[1]云南省林木种苗工作总站,云南昆明650215

出　　处：《桉树科技》2013年第4期15-18,共4页Eucalypt Science & Technology

摘　　要：本文对7个史密斯桉无性系桉叶的出油率进行了测定,对其精油成份进行了分析。结果表明:在7个史密斯桉无性系中,出油率在3.0%以上的有17号、2号、8号,出油率分别达到3.67%、3.61%、3.20%,出油率分别超过史密斯桉实生苗91.43%、88.62%、67.39%,分别超过蓝桉实生苗131.97%、128.18%、102.29%,具有较高的精油得率;精油成份分析表明:在7个史密斯桉无性系中1,8–桉叶素含量在80%以上的有4号、8号、7号、1号无性系,分别为82.85%、80.31%、80.26%、80.05%;以1,8–桉叶素产量为首选指标的综合分析表明,出油率是1,8–桉叶素产量的关键因素,出油率与1,8–桉叶素产量呈正相关。This study investigated the leaf oil yields for 7 clones of Eucalyptus smithii and analyzed components of the leaf essential oils from these clones. The results showed： 1） among the 7 clones, the oil yielding rate of clones 17 （3.67%）, 2 （3.61%） and 8 （3.20%） were over 3.0% and the leaf oil yields of these three clones were 91.43%, 88.62% and 67.39% higher respectively than the average for Eucalyptus smithii seedlings, and 131.97%, 128.18% and 102.29% higher respectively than the average for Eucalyptus globulus seedlings; 2） for oil samples obtained from the leaves of the 7 clones, the 1,8-cineole （one of main components of eucalypt leaf essential oil） contents of clones 4, 8, 7 and 1 were 82.85%, 80.31%, 80.26% and 80.05% respectively; 3） by the index of total 1,8-cineole yield obtained from leaves of these clones, the total oil yield rate was the key factor determining productivitY of 1,8-cineole and the oil yield rate showed a direct correlation with production of 1,8-cineole.

关 键 词：史密斯桉 无性系 出油率 1  8-桉叶素 

分 类 号：S789.4[农业科学—林学]