Abstract:

The flue-cured tobacco leaf with the same maturity was cured in curing-barn, through the analysis of neutral aromatic matters content and sensory quality of flue-cured tobacco with different harvested time and quantifying the appearance standard when harvesting , for the purpose of finding out the appearance mature standard of enhancing the aroma quality and volume and provide theoretical support for the flue-cured tobacco production. The results showed that: the appearance standards for each part of tobacco leaves: lower leaves in the transplanted 60-65d, leaf age in the 45-50d, tip yellowish, the main vein 1/3-1/2, spur 3-5 pairs of white, extent 1.19-1.20 drooping leaves, leaf angle of 70 ° -75 °; middle leaf postponed until after transplanting 95d, leaf age up to the 65d, with a yellow but a little bit of green leaf, the main vein 2 / 3 above, spur 8 -- 9 pairs of white, their leaves drop to 1.30, leaf angle 70 °, with mature plaque and focal sharp phenomenon; upper leaves at 115d after the harvest of tobacco leaves, leaf age in 75d above, almost all the leaves yellow, the main offshoot full white, foliage drooping extent that more than 1.54, leaf angle reached 75 °, there is the phenomenon of mature plaque and sharp focus. Standards to reach this ripe harvest, baked tobacco leaves after the high content of neutral aroma, sensory quality evaluation of higher scores, incense temperament better, as compared to the full aroma.