Journal of Medicinal and Aromatic Plant Sciences

Volume: 45 Issue: 2

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Registration of a high-yielding, high citronellol: geraniol ratio and unique sesquiterpene (6, 9- guaiadiene)-rich variety CIM-Bharat of rose scented geranium (Pelargonium graveolens L.)

TIWARI G*#, VERMA RK#, GUPTA AK, KALRA A, VERMA RS, KUMAR S, NANNWARE AD, TANDON S, RAHMAN L, SEMWAL M, LOTHE NB, CHATURVEDI T, SINGH S, SINGH R, SINGH A, KUMAR R, KUMAR A, CHAUHAN A

*CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow-226015
#Contributed equal authorship
*Corresponding author; Email: [email protected]

Year: 2023, Page: 62-69, Doi: https://doi.org/10.62029/jmaps.v45i2.tiwari

Received: Feb. 4, 2023 Accepted: June 8, 2023 Published: Oct. 27, 2023

Abstract

Rose scented geranium, a South-African aromatic herb, is cultivated in both sub-tropical and temperate countries for its essential oil derived from the aerial parts that conveys a strong rosy-minty odour with a greenishyellow colour. The oil is a treasure trove of versatile chemicals with extensive applications in the high grade perfumery, pharmaceutical, and aroma industries. The annual rise in its essential oil import for indegenic consumption in the country warrants its genetic enhancement of existing germplasm for increasing per unit area productivity and quality of essential oil. With this backup, our team initiated a clonal selection scheme to develop a genetically improved clone, CIMAP-21A, capable of producing 70-80kg/ha of oil yield in a single harvest compared to other existing cultivars and check variety CIM-Pawan. The new developed variety also has unique chemical compositions to meet the quality standard of the perfumery industry. It has a high Citronellol: Geraniol (C: G) ratio (>3) with the presence and absence of unique sesquiterpene markers i.e., 6,9-guaiadiene (5.4%) and 10-epi-γ-eudesmol, respectively. The unique sturdy dark green stem and leaves are the distinguished morphological features of this strain. The developedclone is ideally suitable for cultivation in the entire North India and Western regions of the country. This strain has now been christened as CIM-Bharat and it is registered here as a new, improved variety of rose-scented geranium for its commercial release.

Keywords: CIM-Bharat, Citronellol : Geraniol ratio, GC-MS, Molecular fingerprint, Pelargonium graveolens, Rose-scented Geranium

References

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Saxena G, Rahman LU, Verma PC, Banerjee S, Kumar S. 2008. Field performance of some clones 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.

Singh VR, Verma RS, Upadhyay RK, Lal RK, Padalia RC, Chanotiya CS, Nilofer. 2018. Stable variety selection over locations and recommendations for rose-scented geranium (Pelargonium graveolens L’ Herit. ex Aiton.). J Essent Oil Res 30: 32-39.

Verma RS, Rahman LU, Verma RK, Chauhan A, Singh A. 2013. Essential oil composition of Pelargonium graveolens L’Her ex Ait. cultivars harvested in different seasons. J Essent Oil Res 25: 372–379.
 

Cite this article

Tiwari G, Verma RK, Gupta AK, Kalra A, Verma RS, Kumar S, Nannware AD, Tandon S, Rahman L, Semwal M, Lothe NB, Chaturvedi T, Singh S, Singh R, Singh A, Kumar R, Kumar A, Chauhan A.2023. Registration of a high-yielding, high citronellol: geraniol ratio and unique sesquiterpene (6, 9- guaiadiene)-rich variety ‘CIM-Bharat’ of rose scented geranium (Pelargonium graveolens L.)  J Med Aromat Plant Sci 45: 62-69.

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