Essential oil composition of clove and nutmeg from Andaman and Nicobar Islands, India

To study the chemical variability in spices grown in different islands of India, clove and nutmeg samples were collected from both Andaman and Nicobar groups of islands situated in the Bay of Bengal. Essential oils were extracted and profiling was carried out which revealed considerable variations among the collections for essential oil content as well as composition. P-Eugenol was observed in island-grown clove samples in the range of 59.895 to 76.059%, whereas, β-Caryophyllene and Eugenyl acetate were other important constituents of oil. In case of nutmeg, Myristicin, the hallucinogenic compound, was present in the range of 7.070 to 20.331%. Considering the quality of island-grown spices, these crops could be recommended as profitable intercrops in the existing plantations in the islands

Essential oil composition of clove and nutmeg from Andaman and Nicobar Islands, India

95-100In spices, chemical variability is a known phenomenon. Here, we studied the clove and nutmeg grown in different islands both Andaman and Nicobar groups of islands situated in the Bay of Bengal, India. Essential oils were extracted and profiling was carried out which revealed considerable variations among the collections for essential oil content as well as composition. P-Eugenol was observed in island-grown clove samples in the range of 59.895 to 76.059%, whereas, β-Caryophyllene and Eugenyl acetate were other important constituents of oil. In case of nutmeg, myristicin, the hallucinogenic compound, was present in the range of 7.070 to 20.331%. Considering the quality of island-grown spices, these crops could be recommended as profitable intercrops in the existing plantations in the islands

Successful rescue and field establishment of native banana varieties severely affected by rhizome rot

Rhizome rot disease caused by Erwinia spp. is emerging as a major problem in banana nurseries and young plantations worldwide. Management of the disease is possible only in the initial stages of development. Currently no method is available for rescuing plant material already infected with this pathogen. A total of 95 Nanjanagud Rasabale and 212 Elakki Bale suckers were collected from different growing regions of Karnataka, India. During nursery maintenance of these lines, severe Erwinia infection was noticed. We present a method to rescue infected plants and establish them under field conditions. Differences were noticed in infection severity amongst the varieties and their accessions. Field data revealed good establishment and growth of most rescued plants under field conditions. The discussed rescue protocol coupled with good field management practices resulted in 89.19 and 82.59 percent field establishment of previously infected var. Nanjanagud Rasabale and var. Elakki Bale plants, respectively

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Not AvailableIn spices, chemical variability is a known phenomenon. Here, we studied the clove and nutmeg grown in different islands both Andaman and Nicobar groups of islands situated in the Bay of Bengal, India. Essential oils were extracted and profiling was carried out which revealed considerable variations among the collections for essential oil content as well as composition. P-Eugenol was observed in island-grown clove samples in the range of 59.895 to 76.059%, whereas, β-Caryophyllene and Eugenyl acetate were other important constituents of oil. In case of nutmeg, myristicin, the hallucinogenic compound, was present in the range of 7.070 to 20.331%. Considering the quality of island-grown spices, these crops could be recommended as profitable intercrops in the existing plantations in the islands.Not Availabl

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Not AvailableGarcinia gummi-gutta, popularly known as Malabar tamarind or kodampuli is a tropical fruit tree species of high potential. Acidic fruits are used either in raw or pickled form. Fruit is highly prized for its anti-obesity property owing to high hydroxycitric acid content in its rind. Though generally cultivated for its fruits, the plant has multifaceted uses in paint manufacturing industry, as medicine, source of edible fat etc. The present study concerned comparative morphological and physicochemical analysis of two morphotypes of Malabar tamarind, which revealed significant differences among them. Fruits and leaves of these morphotypes had distinctive morphological features. A morphotype with higher rind recovery and fruit weight was identified for further crop improvement programmes. Further, dimethylsulphoxide was identified as better solvent for extraction of photosynthetic pigments, and hence could be recommended for future physiological studies.Not Availabl

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Not AvailableNot AvailableDBT-BioCARe (19575

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Not AvailableCinnamon is a cross pollinated species and seed propagation has resulted in development of considerable variability in growth, yield and quality among the populations. Air layering has been considered as one of the efficient methods of multiplication in cinnamon. However, the success of layering varies greatly depending on the local environmental conditions. In the present investigation, air layering was performed at 20 days interval during rainy season (July 3rd to October 11th) of two consecutive years in Bay islands. Result revealed that first week of July was the most suitable time for air layering in cinnamon as it supported better rooting percentage (87.5%)