Abstract
ABSTRACT The essential oil of 28 ginger genotypes was subjected to gas chromatography–mass spectrometry to understand the potential of these genotypes to produce high essential oil with added value. The essential oil and its composition varied among genotypes. The highest essential oil and oleoresin (6.00 and 12.18 %) was recorded in ‘Red ginger’ (Z ingiberofficinale var. rubrum). Among the ginger (Z. officinale) genotypes, high oil and oleoresin (3.00 and 8.55 %) were recorded in ‘Arunachal local’. The genotypes ‘Acc. 578ʹ, ‘Nadia’ and ‘Aswathi’ recorded less fiber and ‘Red ginger’, ‘Acc. 219ʹ, ‘Arunachal local’ and ‘Acc. 833ʹ recorded high fibre. The Zingiberene was the major component in the essential oil and highest was recorded in ‘Maran’. Principal component analysis revealed essential oil, oleoresin, camphene, trans-nerolidol, α farnesene and neral contributed to genetic diversity. The results contribute to the selection of ginger genotypes for high essential oil and different end use.
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