ISHS Acta Horticulturae 96: II International Symposium on Spices and medicinal Plants
EFFECTS OF EXTERNAL AND INTERNAL FACTORS ON INCREASE OF ALKALOIDS AND STEROIDS IN SOME COMMERCIALLY CULTIVATED MEDICINAL PLANTS OF DARJEELING HILLS /WEST BENGAL INDIA/ |
| Authors: | S.K. Chatterjee, R.P. Nandi, R. Choudhuri, S. Chatterjee |
| Abstract:
Physiological studies in relation to development and growth of medicinal plants are rather restricted. Systematic studies on Rauvolfia serpentina have been reported by Parimoor /1974/ and Chatterjee /1977a/. Nandi and Chatterjee /1975b/ and Schieder /1978/ analysed different factors affecting alkaloid formation in Datura innoxia. Physiological studies on Cinchona are few /Lama and Chatterjee, 1976/. Recently Chatterjee /1977b/ explained details of cultivation practices of Cinchona in India. Chatterjee /1977a/ also reported cultivation practices of Ipecac plants growing in West Bengal. Scientific cultivation of Dioscorea spp. and extraction of their active principles have been reported by Mehta and Staba /1970/ and Nandi and Chatterjee /1978/. Presence of Diosgenin in Costus speciosus has been reported by Dasgupta and Pandey /1970/ and developmental aspect of the plants has been analysed by Nandi /1976/. The cultivation practices of Digitalis purpurea has been mentioned by Chatterjee /1976/; that of Catharantus roseus by Chatterjee /1977a/; and of Solanum khasianum by Choudhuri and Chatterjee /1979/. Active principles in different medicinal plants were assayed following I.P. /1955/ for Cinchona; I.P. /1955/ for Cephaelis; Selvaraj /1971/ for Dioscorea and Costus; Bakshi and Hamied /1971/ for Solanum; Reinhard et al. /1978/ for Digitalis; Schieder /1978/ for Datura; Nandi and Chatterjee /1956/ for Rauvolfia and Janot et al. /1956/ for Catharanthus. Quantitative data on stem growth, leaf formation, branch formation, flower/fruit formation and formation of different activeprinciples were systematically collected at intervals of 15–30 days according to different species and percentage increase or decrease of different growth | |
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