References
- Rao, B.R.R. (2002). Biomass yield, essential oil yield and essential oil composition of rose- scented geranium (Pelargonium sp) as influenced by row spacing and intercropping with corn mint (Mentha arvensis L.f. piperascence Malinv. ex Holmes). Ind. Crops Prod. 16: 133–144. doi: 10.1016/S0926-6690(02)00038-9
- Narayana, M.R., Rao, E.V.S.P., Rao, B.R.R. and Sastry, K.P. (1986). Geranium cultivation in India: potentials and prospects. Pafai J. 8: 25–30.
- Singh, S., Singh, V., Kiran Babu, G.D., Ahuja, P.S. and Kaul, V.K. (2005). Techno-economic analysis of scented geranium (Pelargonium sp.) essential oil production in Indian western and central Himalaya. Indian Perfumer 49: 211–218.
- Saxena, G., Rahman, L., Verma, P.C., Banerjee, S. and Kumar, S. (2008). Field performance of somaclones of rose-scented geranium (Pelargonium graveolens L'Her Ex Ait.) for evaluation of their essential oil yield and composition. Ind. Crops Prod. 27: 86–90. doi: 10.1016/j.indcrop.2007.08.001
- Lis-Balchin, M. (1991). Essential oil profiles and their possible use in hybridization of some common scented geraniums. J. Essent. Oil Res. 3: 99–105. doi: 10.1080/10412905.1991.9697917
- Sashidhara, K.V., Verma, R.S. and Ram, P. (2004). Evaluation of geranium cultivars (Pelargo- nium graveolens) in Tarai region of Uttaranchal. Indian Perfumer 48: 273–276.
- Rao, B.R.R., Sastry, K.P. and Saleem, S.M. (2000). Volatile flower oils of three genotypes of rose-scented geranium (Pelargonium sp). Flav. Fragr. J. 15: 105–107. doi: 10.1002/(SICI)1099-1026(200003/04)15:2<105::AID-FFJ875>3.0.CO;2-G
- Rao, B.R.R., Sastry, K.P., Rao, E.V.S.P. and Ramesh, S. (1990). Variation in yield and quantity of geranium (Pelargonium graveolens L Her.ex Aiton.) under varied climatic and fertility condi- tions. J. Essent. Oil Res. 2: 73–79. doi: 10.1080/10412905.1990.9697827
- Rao, B.R.R., Bhattacharya, A.K., Kaul, P.N., Chand, S. and Ramesh, S. (1993). Change in profiles of essential oils of rose-scented geranium (Pelargonium sp.) during leaf ontogeny. J. Essent. Oil Res. 5: 301–304. doi: 10.1080/10412905.1993.9698224
- Rao, B.R.R., Kaul, P.N., Mallavarapu, G.R. and Ramesh, S. (1996). Effect of seasonal climatic changes on biomass yield and terpenoid composition of rose-scented geranium (Pelargonium sp). Biochem. Syst. Ecol. 24: 627–635. doi: 10.1016/S0305-1978(97)81206-9
- Rao, B.R.R., Kaul, P.N., Mallavarapu, G.R. and Ramesh, S. (1999). Comminution of plant material and its effect on the quality of rose-scented geranium (Pelargonium sp.) oil. J. Essent. Oil Res. 11: 589–592. doi: 10.1080/10412905.1999.9712017
- Kaul, P.N., Rao, B.R.R., Bhattacharya, A.K., Singh, C.P. and Singh, K. (1995). Volatile constituent of three cultivars of rose-scented geranium (Pelargonium sp.) as influenced by method of distillation. Pafai J. 17: 21–26.
- Chauhan, A. and Verma, R.S. (2010). Cultivation potential of three rsoe-scented geranium (Pelargonium graveolens) cultivars in the Kumaon region of western Himalayas. Med. Arom. Plant Sci. Biotech. 4: 77–79.
- Kaul, P.N., Rao, B.R.R., Bhattacharya, A.K., Mallavarapu, G.R. and Ramesh, S. (1996). Change in chemical composition of rose-scented geranium (Pelargonium sp.) oil during storage. J. Essent. Oil Res. 9: 115–117. doi: 10.1080/10412905.1997.9700729
- Kaul, P.N., Rao, B.R.R., Bhattacharya, A.K., Singh, K. and Singh, C.P. (1997). Effect of partial shade on the essential oil of three geranium (Pelargonium sp.) cultivars. Indian Perfumer 41: 1–4.
- Mallavarapu, G.R., Rao, B.R.R., Kaul, P.N. and Ramesh, S. (1997). Contribution of the essential oils of leaf, petiole, and stem of scented geranium to the odour of geranium oil. J. Med. Arom. Plant Sci. 19: 1020–1023.
- Verma, R.S., Verma, R.K., Yadav, A.K. and Chauhan, A. (2010). Changes in the essential oil composition of rose-scented geranium (Pelargonium graveolens L'Her ex Ait.) due to date of transplanting under hill conditions of Uttarakhand. Indian J. Nat. Prod. Resour. 1: 367–370.
- Mani, A.K., Mohan, D.S., Kumar, N. and Sampath, V. (1981). Effect of storage time on the herbage prior to distillation on oil recovery and its quality in geranium (Pelargonium graveolens L. Herit). Indian Perfumer 25: 35–36.
- Guenther, E. (1982). Oil of geranium, in the essential oils, Vol. 4, edited by RobertE., Kreiger Publishing Company Ins, Florida USA, pp. 671–737.
- Chandravadana, M.V. and Vasantha Kumar, T. (1989). The yield and oil quality of scented geranium as affected by biomass storage duration and different temperatures. Indian Perfumer 33: 246–248.
- Ram, P., Kumar, B., Naqvi, A.A., Verma, R.S. and Patra, N.K. (2005). Post harvest storage effect on quantity and quality of rose-scented geranium (Pelargonium sp.cv. ‘Bourbon’) oil in Uttaranchal. Flav. Fragr. J. 20: 666–668. doi: 10.1002/ffj.1544
- Clevenger, J.F. (1928). Apparatus for the determination of volatile oil. J. Am. Pharm. Assoc. 17: 346.
- Adams, R.P. (2007). Identification of essential oil components by gas chromatography/mass spectrometry. Allured Publishing Co., Carol Stream, IL, USA.
- Davies, N.W. (1990). Gas chromatographic retention indices of monoterpenes and sesquiterpenes on methyl silicone and Carbowax 20M phases. J. Chromatogr. A 503: 1–24. doi: 10.1016/S0021-9673(01)81487-4
- Lawrence, B.M. (1984). Progress in essential oils. Perfum. Flav. 9: 87–95.
- Southwell, J.A., Stiff, I.A. and Curtis, A. (1995). An Australian geranium oil. Perfum. Flav. 20: 11–14.
- Saxena, G., Banerjee, S., Rahman, L., Sharma, S. and Kumar, S. (2000). An efficient in vitro procedure for micro propagation and generation of somaclones of rose-scented geranium Pelargonium. Plant Sci. 155: 133–140. doi: 10.1016/S0168-9452(00)00213-2
- Teisseire, P. (1987). Industrial quality control of essential oils by capillary GC. In capillary gas chromatography in essential oil analysis, Edited by SandriP. and BiechiC., Huethig, Heidelberg, 215–258.