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Effects of Loading Density on Main Physiological Indices of Tobacco during Bulk Curing Process

WANG Song-feng, WANG Ai-hua,SONG Chao-peng,WANG Wei-feng,LI Shao-peng,GONG Chang-rong *(Henan Agricultural University, Zhengzhou 450002, China)  
Dynamic changes of activity of amylase,POD,AAO and chlorophyll in tobacco leaf under the treatments of different loading density and yellowing temperature were studied during bulk curing process by using the electric heated flue curing box designed and made by Henan Agricultural University. The result indicated that activity of amylase,POD,AAO was higher comparatively and the content of chlorophyll was the lowest in the treatment of 55-65 kg/m 3 of loading density.
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