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24 percent 30 minutes 32 percent moisture 60 percent amount of buffer Bawden blast broken buffer solution Burley carborundum carried check samples 46 cigar commercial condition conditioner considered cured tobacco data decreased dried Eastern Regional Research equipment Experimental Dryer expose exposure factor fertilizer flue-cured fresh green greenhouse grinding ground handle hazards heat penetration Holmes inactivated included increased indicate infected inoculation Leaf leaves lime living Manufactured mill minutes at 212 mixed moistening moisture content MOSAIC DISEASES Nicotiana nicotine number of lesions obtained Pennsylvania percent moisture sample phosphate Phytop PRELIMINARY STUDY probably due procedure range References Regional Research Laboratory results revealed sample 52 show shown slight soft Source spread steam stem material STERILIZING TOBACCO STEMS Table temperature test plants three tion tobacco dust tobacco mosaic virus tray treated treatment Unheated samples University of Maryland Upper Valleau vari virus Tests wash wet the material wide distribution Wolf