广西林业科学2025，Vol.54Issue(4)：394-399,6.DOI:10.19692/j.issn.1006-1126.20250405
'桂樟1号'叶片生长节律及芳樟醇含量动态变化
Growth Rhythm and Dynamic Change of Linalool Content in Leaves of Cinnamomum officinarum'Guizhang 1'
摘要
Abstract
In order to reveal dynamic change of linalool content in leaves of Cinnamomum officinarum'Guizhang 1',leaves of'Guizhang 1'were taken as research objects and growth rhythms were observed.Leaves of different leaf ages and months were collected and linalool was extracted by supercritical CO2 extraction method.Linalool contents in leaves of different leaf ages and months were analyzed by gas chromatography.Results showed that linalool contents in leaves of different leaf ages showed significant differences.From leaves at 15 to 65 days,linalool content showed decline-rise-decline trend,reaching maximum at 55 days.There were four times sprouting in one year,with increasing of sprouting time,sprout length showed decreasing trend.New branches grew faster in spring and summer.As time increasing,linalool content in leaves in first sprouting increased first and then decreased,which was de-creased gradually in second sprouting.Linalool contents of leaves in twice sprouting both reached the highest values in June,which were 20.28 and 19.70 μL/g respectively.Linalool contents of leaves in third and fourth sprouting decreased first and then increased with the highest values in January of the following year.When harvesting'Guizhang 1'leaves,mature leaves with complete leathery after 45 days of leaf expansion should be selected with stable linalool content.Linalool content of leaves was the highest in June,which were suitable for harvesting.关键词
芳樟醇/生长节律/动态变化/樟树Key words
linalool/growth rhythm/dynamic change/Cinnamomum officinarum分类
林学引用本文复制引用
王坤,朱昌叁,曾祥艳,杨卓颖,李开祥..'桂樟1号'叶片生长节律及芳樟醇含量动态变化[J].广西林业科学,2025,54(4):394-399,6.基金项目
广西科技重大专项(桂科AA24263022) （桂科AA24263022）
八桂学者项目(科技创新类第六批-李开祥) （科技创新类第六批-李开祥）
广西特色经济林培育与利用重点实验室自主课题(JA-22-02-03) （JA-22-02-03）
