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不同成熟度烤烟鲜烟叶的组织结构比较 |
[烟草法学论文] 摘要：对烤烟K326品种上、中、下3个部位的初熟、适熟和过熟鲜烟叶进行快速石蜡包埋切片，观察分析烟叶的组织结构。结果表明：随着烟叶成熟度的提高，表皮细胞宽度、海绵组织厚度逐渐增加，栅栏组织厚/海绵组织厚(组织比)则逐渐减小；栅栏组织细胞间隙、海绵组织细胞间隙以适熟烟叶最大；栅栏组织厚、海绵组织厚与烟叶厚度均呈显著相关，相关系数分别为0.79和0.94。
关键词：烤烟；成熟度；组织结构
Comparison of Tissue of Fresh Flue－cured Tobacco Leaves with Different Maturity
Keywords：Flue－cured tobacco；Maturity Tissue
Abstract：The paraffin embedded mature，ripe，and overripe fresh leaves from upper，middle and lower stalk positions of flue－cured tobacco cv K326 were sliced rapidly，and the tissue of lamina was observed The results showed that the width of epidermis cell and the thickness of spongy tissue were increased，and the thickness ratio of palisade to spongy decreased with the increase of maturity degree The palisade and spongy tissues of ripe leaves had the largest cell clearances，The thickness of palisade and spongy tissues was significantly correlated with leaf thickness，and the correlation coefficients were0.79 and 0.94，respectively
成熟度是分级标准中衡量烟叶品质的第一要素。在烟叶等级划分的诸多因素中，实际上均是以成熟度为核心[1]。因此，正确掌握和判断烟叶的成熟度，采收真正成熟的烟叶，是提高烟叶质量、增加经济效益的重要途径之一。正确掌握和判断烟叶的采收成熟度，必须认识不同栽培条件下烟叶成熟时的外观特征、组织结构和化学成分。前人曾对……
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| 投稿人：fg3 |
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最后编辑：dfdf |
烟草法学论文 | 烟草法学论文 |
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