A field investigation was undertaken during 2011-12 to assess the performance of turmeric under cashew plantation as intercrop compared to sole cropping in open area. An experiment was laid out in cashew plantation spaced at 6 m × 6 m by utilizing of 16 m 2 (4 m × 4 m) area and replicated thrice with similar management under both management conditions. Significantly higher fresh weight of rhizome (353.52 g/clump), number secondary rhizome (27.97) and clump size (201.24 cm 2) of turmeric var. PTS-24 was recorded under sole cropping compared to intercropping (271.83 g/clump, 25.53 and 157.88 cm 2 , respectively) under cashew plantation. Interception of PAR (Photosynthetically Active Radiation) by turmeric crop at 150 days after planting as intercrop in cashew plantation was 27390 Lux compared to 30876 Lux in open condition. Due to shade loving nature of turmeric plants growth was significantly higher under cashew intercropping and yield was recorded higher under open situation.
Background: Nutmeg is a perennial tree spices which is yielding twin spices; present days research thrust is to identify high yielding mother trees. But yield and quality both are equally important due to its wide spread medicinal as well as industrial usage. Methods: The core collection of nutmeg genotypes form different locations of Kerala evaluated for biochemical composition. Seventeen morphologically distinct types of nutmeg were analysed through GC/MS method. The change in volatiles after storage (at 4°C) was also assessed after one year. Result: The range of variation was observed for kernel oil, mace oil, kernel oleoresin, mace oleoresin and fixed oil of kernel. Myristicin, elemecin and sabinene were principal volatile compounds. The identification of distinct nutmeg chemotypes for specific volatile compounds which could be used in commercial cultivation/pharmaceutical application/industrial use. Present study highlights the high and low hallucinogen (myristicine, elemicine and safrole) genotypes along with high sabinene types.
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