Juniperus Bibliography by Workform
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چکیده
Juniperus excelsa is the main tree species of forest stands in the upper elevations of the Kalamoun mountains in Syria. In this preliminary experiment seeds of juniper from four stands in different elevations (1900, 2100, 2200, 2250 m) were subjected to two pre-treatments with different duration period: warm stratification for three-months followed by 45 days warm stratification followed by 45 days cold stratification, and six months with 90 days warm followed by 90 days cold stratification. In comparison to the other three stands, the stand 2100 above sea level had more vigorous trees from which the seeds were collected. After stratification, seed samples were subjected to a standard germination test according to ISTA regulations. Juniper seeds originating from the Kalamoun mountains showed with 92.5% a high percentage of empty seeds. The better quality of seeds with less empty seeds (87%) were found in the stand which included the more vigorous juniper trees in 2100 m above sea level. Germination of seeds was significantly dependant on the duration period of the warm and cold stratification. The six months pre-treatment with 90 days cold followed by 90 days warm stratification led to germination of all sound viable seeds. Germinated seeds yielded of the shorter stratification period was only 17%. The results indicated that there is a real lack of knowledge about the reproductive biology and activity of the Kalamoun populations of J. excelsa. Call Number:
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Chemical composition of hydrodistillation essential oil of fruits and aerial parts of Juniperus sabina L. from Hezar-Jarib in Mazandaran province
Juniperus sabina L. is normally low shrub with procumbent or obliquely ascending branches, or rarely a small tree to about 4 m, monoecious or dioecious. Juniperus sabina L. is a medicinal plant used in folk medicine as an abortive. Its lignanes have antineoplastic and antiviral activity, and also essential oil of Juniperus sabina L. has shown antibacterial a...
متن کاملComparative Analysis of Chemical Profile, Antioxidant, In-vitro and In-vivo Antidiabetic Activities of Juniperus foetidissima Willd. and Juniperus sabina L.
Fruit and leaves of junipers are commonly used internally as tea and pounded fruits are eaten to lower blood glucose levels in Anatolia. Thus, we aimed to evaluate antidiabetic and antioxidant potential and the chemical profile of Juniperus foetidissima Willd. and J. sabina L. in this study. In-vitro antidiabetic activities of leaf and fruit extracts were examined by their inhibitory activity o...
متن کاملComparative Analysis of Chemical Profile, Antioxidant, In-vitro and In-vivo Antidiabetic Activities of Juniperus foetidissima Willd. and Juniperus sabina L.
Fruit and leaves of junipers are commonly used internally as tea and pounded fruits are eaten to lower blood glucose levels in Anatolia. Thus, we aimed to evaluate antidiabetic and antioxidant potential and the chemical profile of Juniperus foetidissima Willd. and J. sabina L. in this study. In-vitro antidiabetic activities of leaf and fruit extracts were examined by their inhibitory activity o...
متن کاملAntioxidant Activity of the Essential Oils of Different Parts of Juniperus excelsa M. Bieb. subsp. excelsa and J. excelsa M. Bieb. subsp. polycarpos (K. Koch) Takhtajan (Cupressaceae)
The essential oils of branchlets and fruits of Juniperus excelsa subsp. excelsa and Juniperus excelsa subsp. polycarpos were examined for their antioxidant activity. The compositions of the essential oils were studied by GC and GC-MS. To evaluation the antioxidants activity of the volatile oils, pure components and positive controls at different concentrations, thin-layer chromatography (TLC) s...
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