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Essential oil of rose-scented geranium (Pelargonium sp.) cultivated under the semiarid tropical climate of Andhra Pradesh, South India has been examined by capillary GC and GC/MS. The oil possessed a composition similar to the African-type geranium because of the presence of a higher concentration of 10-epi-γ-eudesmol (3.8–4.2%) than of guaia-6, 9-diene (0.13–0.15%).
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Bhattacharya et al. (1993) studied this question.
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