2种化学型樟树矮林生长差异及出油率研究OA
Study on the Growth Difference and Oil Extrac-tion Rate of 2 Chemical Types of Cinnamomum camphora Dwarf Forest
[目的]研究 2 种化学型樟树矮林的生长差异及出油率,以期为樟树矮林作业提供理论依据.[方法]以 2 年生芳樟醇和柠檬醛型樟树矮林为试验材料,对比分析其萌芽数和萌条数、萌条长度和粗度、单株鲜重、单株叶鲜重、单株小枝鲜重、单株主枝鲜重、出油率的差异.[结果]柠檬醛型樟树矮林的萌芽数(14.07 个)显著多于芳樟醇型樟树的(10.13 个),但萌条数二者之间差异不显著;柠檬醛型樟树矮林的萌条长度显著高于芳樟醇型樟树矮林的,二者之间萌条粗度差异不显著;柠檬醛型樟树矮林的单株鲜重(3037 g)显著高于芳樟醇型樟树矮林的(2487 g),柠檬醛型樟树矮林的叶、小枝、主枝鲜重也显著高于芳樟醇型樟树矮林的,2 种化学型樟树矮林生物量分配均为叶＞小枝＞主枝;芳樟醇型樟树矮林的叶/主枝、叶/枝和(叶+小枝)/主枝显著大于柠檬醛型樟树矮林的,单株鲜重大,叶枝比反而小.芳樟醇型樟树矮林叶片出油率显著高于柠檬醛型樟树矮林,小枝、主枝的出油率差异不显著,2种化学型樟树矮林的精油含量均为叶＞小枝＞主枝.[结论]柠檬醛型和芳樟醇型樟树矮林的生长及出油率均存在差异,但两者的生物量分配和精油含量分布规律一致.
[Objective]Differences in growth and oil-extracting rate in two chemical types of camphor dwarf forest were studied in order to provide theoretical basis for dwarf forest operation.[Method]2-year-old Cinnamomum camphora ct.Linalool and Cinnamomum camphora ct.Citral were selected as experimental materials,and the differences in sprout number,shoot number,sprout length and thickness,fresh weight per plant,leaf fresh weight per plant,twig fresh weight per plant,main branch fresh weight per plant and oil yield were analyzed.[Result]The results showed that the number of sprouts(14.07)in C.camphora ct.Citral dwarf forest was significantly more than that in C.camphora ct.Linalool dwarf forest(10.13),but there was no significant difference in the num-ber of shoots between the two.The sprout length in C.camphora ct.Citral dwarf forest was signifi-cantly higher than that in C.camphora ct.Linalool dwarf forest,and there was no significant differ-ence in sprout thickness between the two.The fresh weight per plant(3037 g)in C.camphora ct.Cit-ral dwarf forest was significantly higher than that in C.camphora ct.Linalool dwarf forest(2487 g).The fresh weight of leaves,twigs and main branches in C.camphora ct.Citral dwarf forest were also significantly higher than those in C.camphora ct.Linalool dwarf forest,respectively.The biomass distribution in the two chemical types of camphor dwarf forest was leaf>twig>main branch.The leaf/main branch,leaf/branch and(leaf+twig)/main branch in C.camphora ct.Linalool dwarf forest were significantly larger than those in C.camphora ct.Citral dwarf forest.While the fresh weight per plant was large,the leaf branch ratio was contrarily small.The leaf oil yield in C.cam-phora ct.Linalool dwarf forest was significantly higher than that in C.camphora ct.Citral dwarf for-est.There was no significant difference in oil yield between twigs and main branches.The essential oil content of the two chemical types of camphor dwarf forest was leaf>twig>main branch.[Con-clusion]The growth and oil yield of two chemical types of camphor dwarf forests were different,but the biomass distribution and essential oil content distribution of the two were consistent.
丁颖;于伟;顾祎昕;魏希;肖祖飞
南昌工程学院,江西省樟树繁育与开发利用工程研究中心,江西南昌 330099
林学
樟树化学型生长指标生物量出油率
Cinnamomum camphorachemical typegrowth indexbiomassoil extraction rate
《农业研究与应用》 2024 (003)
217-223 / 7
江西省林业局林业科技创新专项(201904);江西省林业局樟树研究专项(202007);江西省科学技术厅重大科技研发专项(20203ABC28W016).
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