不同成熟度烟叶烘烤过程中叶片组织结构和形态的变化

以烤烟中烟100中部叶为试验材料,研究了不同成熟度烟叶烘烤过程中叶片组织结构及形态的变化。结果表明,烟叶组织结构在变黄后期与定色期变幅较大,叶片形态在定色期变幅最大,不同成熟度烟叶在烘烤过程中组织结构和形态变化也表现出明显差异。密集烘烤条件下烟叶在定色期失水过快是导致烤后烟叶结构紧密、僵硬的主要原因。

Changes in Tissue Structure and Morphology of Tobacco Leaves during Curing of Tobacco Leaves with Different Maturities

The changes in the tissue structure and morphology of tobacco leaves during curing of tobacco leaves with different maturities were studied by measuring the middle leaves of flue-cured tobacco variety Zhongyan 100.The results showed that the tobacco leaf tissue structure had relatively large changes in the later period of yellowing and in leaf drying period,while the leaf morphology had the maximum rangeability in leaf drying period.There were obvious differences in the changes in the tissue structure and morphology of tobacco leaves during curing among tobacco leaves with different maturities.The main reason for tight structure and ankylosis of flue-cured tobacco leaves was that the tobacco leaves lost water too fast at the leaf drying stage under the condition of intensive baking.