Study on the Growth Difference and Oil Extrac-tion Rate of 2 Chemical Types of Cinnamomum camphora Dwarf Forest
[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.
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