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agronomic experiments alkaloids Artemisia annua artemisinin caused Chemistry Cinchona contain crop cultivation deltoidea developing countries Digitalis Ianata Digitalis lanata Dioscorea diosgenin diploid dried Duboisia myoporoides Econ ergot farmyard manure fertilizers free from weeds fungus Future strategies Genetics germination ginseng glycosides growing growth Harvesting and processing hectare Henbane Husain hybrids hyoscine hyoscyamine Hyoscyamus muticus important Indian irrigations are required kg nitrogen kg/ha lanata lanatoside leaf leaves liquorice lndia lnterculture and weed lpecac main alkaloids MEDICINAL PLANTS medicinal yam modern medicine nitrogen obtained from wild Opium poppy optimum Pakistan Pharm phosphorus Plantago ovata Podophyllum propagated through seeds Prospects for production Psyllium rainfall Rauvolfia serpentina raw material REPORT ON MEDICINAL roots sapogenins seedlings seeds are planted Senna serpentwood shade Singh Soil and climate split doses STATUS REPORT steroidal subtropical areas temperate areas tetraploids tonnes transplanted tropane tropane alkaloids tropical tuber weed control weeding and hoeing wild sources yield