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Title: Changes in the essential oil composition of rose-scented geranium (Pelargonium graveolens L’Herit. ex Ait.) due to date of transplanting under hill conditions of Uttarakhand
Authors: Verma, R S
Verma, R K
Yadav, A K
Chauhan, Amit
Keywords: Essential oil;Pelargonium graveolens;Rose-scented geranium;Transplanting time;Hill conditions
Issue Date: Sep-2010
Publisher: NISCAIR-CSIR, India
IPC Code: Int. cl.8 - A01G 9/00, A61K 36/00
Abstract: A study was carried out to determine the effect of transplanting date on the essential oil composition of rose-scented geranium (Pelargonium graveolens L’Herit. ex Ait.) cultivar ‘CIM-Pawan’ under hill conditions of Uttarakhand, India. The crops were raised using five months of transplanting, viz. December, January, February, March and April. The oil was extracted by hydro-distillation and analyzed by capillary gas chromatography. The main components of the oil were citronellol (21.3-28.7%), geraniol (23.1-38.4%), linalool (4.2-6.5%), iso-menthone (6.5-7.9%), citronellyl formate (6.3-8.3%), 10-epi-γ-eudesmol (4.7-5.6%) and geranyl formate (3.3-4.3%). The results indicated that the essential oil components were affected significantly by transplanting time. The citronellol/geraniol ratio (C: G), quality determining factor was found to vary from 0.55 to 1.16 in these oils which was well within the desired limit. Nevertheless, oil with best C:G ratio was obtained from January (0.99) and February (0.92) planted crops; showing the effect of crop duration.
Page(s): 367-370
ISSN: 0976-0512 (Online); 0976-0504 (Print)
Appears in Collections:IJNPR Vol.1(3) [September 2010]

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