细毛樟的繁殖方法与精油变异

WAYS OF PROPAGATING CINNAMOMUM TENUIPILUM AND VARIATIONS IN ITS LEAF ESSENTIAL OIL COMPONENTS

细毛樟(Cinnamomum tenuipilum Kosterm.)是一种新的香料植物。其叶精油有多种化学型。它们中金合欢醇型含量为54％—71％,香叶醇型为86％—98％,芳樟醇型为84％—98％,甲基丁香酚型为69％—89％。对这4个化学型进行了繁殖,种子发芽率为71％—98％;嫁接成活率为44％—75％。经栽培和分析,金合欢醇型有性后代50％以上、香叶醇型56％以上、芳樟醇型57％以上、甲基丁香酚型71％以上的植株,可保持母本的特性,而用无性繁殖的后代叶精油基本不变,可保持母本的原化学型。

Cinnamomum tenuipilum Kosterm. is a new perfume plant in Yunnan. Based on its major compounds of leaf oils from different strains, nine chemical types could be divided. Among them, the content of faresol type is 54-71 percent, of geraniol type is 86-98 percent, of linalool type is 84-98 percent, of methyl eugenol type is 69-89 percent. The results show that the percentage of seed germination is 71-98, and the gerafting survival rate for the farnesol and geraniol types is 44-75%. Chemical analyses of various strains, introduced and cultivated in the Xishuangbanna Tropical Botanic Gerden, Academia Sinica have showed that sexual progenies of the farnesol type (50% plants), of the geraniol type (56% plants), of linalool type (57% plants) and of the methyl eugenol type (71% plants) can maintain their maternal featurer, those of the progenies breed by vegetative propagation are fundamentally unchanging, retaining their mother's chemical types.