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Effect of altitude on the essential oil constituents of artemisia roxburghiana besser var. purpurascens (Jacq.) hook / Flora Haider in The journal of essential oil research, Vol. 21 N° 4 (Juillet/Août 2009) 

Public ISBD [article]  in The journal of essential oil research > Vol. 21 N° 4 (Juillet/Août 2009) . - pp. 303-304 Titre : Effect of altitude on the essential oil constituents of artemisia roxburghiana besser var. purpurascens (Jacq.) hook Type de document : texte imprimé Auteurs : Flora Haider, Auteur ; Narendra Kumar, Auteur ; S. Banerjee Article en page(s) : pp. 303-304 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Artemisia  roxburghiana  var.  purpurascens  Asteraceae  Essential  oil  composition  α-thujone  Borneol  β-caryophyllene  Eugenol  Altitude  variation Index. décimale : 646 Résumé : Mature vegetative plants of Artemisia roxburghiana Besser var. purpurascens (Jacq.) Hook were collected from Mussoorie (2205 m), Bhatwari (1218 m) and Bhaldana (850 m) from Garhwal Himalayas and their essential oils were isolated and subjected to GC and GC/MS analysis. The oil yield was lowest (0.2%) in the plants collected from the relatively higher altitude of Mussoorie; it was rich in borneol (21.2%) followed by linalyl acetate (7.4%) and α-humulene (6.7%). The oils from plants collected from the lower altitudes of Bhatwari and Bhaldana yielded higher percentage of oils (0.8–0.85%) which were dominated by β-caryophyllene (16.3%, 18.4%) followed by α-thujone (12.0%) in the former and eugenol (16.2%) in the later. En ligne : http://www.jeoronline.com/archive/detail/42#top [article] Effect of altitude on the essential oil constituents of artemisia roxburghiana besser var. purpurascens (Jacq.) hook [texte imprimé] / Flora Haider, Auteur ; Narendra Kumar, Auteur ; S. Banerjee . - pp. 303-304. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 21 N° 4 (Juillet/Août 2009) . - pp. 303-304 Mots-clés : Artemisia  roxburghiana  var.  purpurascens  Asteraceae  Essential  oil  composition  α-thujone  Borneol  β-caryophyllene  Eugenol  Altitude  variation Index. décimale : 646 Résumé : Mature vegetative plants of Artemisia roxburghiana Besser var. purpurascens (Jacq.) Hook were collected from Mussoorie (2205 m), Bhatwari (1218 m) and Bhaldana (850 m) from Garhwal Himalayas and their essential oils were isolated and subjected to GC and GC/MS analysis. The oil yield was lowest (0.2%) in the plants collected from the relatively higher altitude of Mussoorie; it was rich in borneol (21.2%) followed by linalyl acetate (7.4%) and α-humulene (6.7%). The oils from plants collected from the lower altitudes of Bhatwari and Bhaldana yielded higher percentage of oils (0.8–0.85%) which were dominated by β-caryophyllene (16.3%, 18.4%) followed by α-thujone (12.0%) in the former and eugenol (16.2%) in the later. En ligne : http://www.jeoronline.com/archive/detail/42#top

Essential oil profile of natural-temperate and domesticated-subtropical artemisia myriantha wall.ex bess. var. pleiocephala (Pamp.) ling. plants / G. D. Bagchi in The journal of essential oil research, Vol. 21 N°1 (Janvier/Février 2009) 

Public ISBD [article]  in The journal of essential oil research > Vol. 21 N°1 (Janvier/Février 2009) . - pp. 43-45 Titre : Essential oil profile of natural-temperate and domesticated-subtropical artemisia myriantha wall.ex bess. var. pleiocephala (Pamp.) ling. plants Type de document : texte imprimé Auteurs : G. D. Bagchi, Auteur ; Flora Haider, Auteur ; Narendra Kumar, Auteur Article en page(s) : pp. 43-45 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Artemisia  myriantha  var.  pleiocephala  Asteraceae  Essential  oil  composition  Limonene  Chrysanthenone  Camphor Index. décimale : 646 Résumé : Artemisia myriantha var. pleiocephala plants collected from the temperate Garhwal region of Western Himalayas were domesticated in the subtropical conditions of North Indian plains. Considerable changes were observed in the oil constituents of the plant after domestication from temperate conditions to subtropical conditions. In the naturally growing temperate plants, major constituents of the oil were chrysanthenone (7.3%) followed by δ-cadinene (5.7%) and 1,8,cineole (5.3%) during flowering. After domestication at subtropical conditions of Lucknow, although the major constituent of the oil remained chrysanthenone, its quantity increased considerably (15.0–29.1%) during flowering. Another important constituent of the oil of the domesticated plants during flowering was limonene (6.1–15.1%). However, during the vegetative stage, camphor (74.9%) was its major constituent. DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.jeoronline.com/archive/detail/42#top [article] Essential oil profile of natural-temperate and domesticated-subtropical artemisia myriantha wall.ex bess. var. pleiocephala (Pamp.) ling. plants [texte imprimé] / G. D. Bagchi, Auteur ; Flora Haider, Auteur ; Narendra Kumar, Auteur . - pp. 43-45. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 21 N°1 (Janvier/Février 2009) . - pp. 43-45 Mots-clés : Artemisia  myriantha  var.  pleiocephala  Asteraceae  Essential  oil  composition  Limonene  Chrysanthenone  Camphor Index. décimale : 646 Résumé : Artemisia myriantha var. pleiocephala plants collected from the temperate Garhwal region of Western Himalayas were domesticated in the subtropical conditions of North Indian plains. Considerable changes were observed in the oil constituents of the plant after domestication from temperate conditions to subtropical conditions. In the naturally growing temperate plants, major constituents of the oil were chrysanthenone (7.3%) followed by δ-cadinene (5.7%) and 1,8,cineole (5.3%) during flowering. After domestication at subtropical conditions of Lucknow, although the major constituent of the oil remained chrysanthenone, its quantity increased considerably (15.0–29.1%) during flowering. Another important constituent of the oil of the domesticated plants during flowering was limonene (6.1–15.1%). However, during the vegetative stage, camphor (74.9%) was its major constituent. DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.jeoronline.com/archive/detail/42#top