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摘要：为明确烤烟柔软度与烟叶外观质量的关系，利用柔软度仪检测了江西省480份烤烟样品柔软度，并评定了外观质量。相关分析结果表明：烟叶柔软度与颜色、油分、色度呈极显著正相关，与成熟度、叶片结构、身份、总分呈极显著负相关。建立回归方程：Y=53.201-5.578X3+2.852X6+2.136X5（叶片结构X3、油分X5、色度X6），R2为0.818，具有良好的拟合度。通径分析表明：叶片结构、色度、油分对烟叶柔软度的影响较大。江西烟叶柔软度有一定差异，并且与烟叶外观质量各指标关系密切，这为以烟叶柔软度作为烟叶外观质量评价指标之一、精细评价烟叶质量提供可能性。

关键词：烤烟；柔软度；外观质量；关系分析

中图分类号：S572.01文献标识号：A文章编号：1001-4942（2017）06-0026-04

AbstractIn order to determine the relationship between softness and appearance quality of flue-cured tobacco， the softness of 480 flue-cured tobacco samples in Jiangxi Province were detected by softness instrument， and the appearance quality was evaluated. The results of relationship analysis showed that the softness of tobacco was extremely significantly positively correlated with color， oil and chroma， and extremely significantly negatively correlated with maturity， leaf structure， identity and total score. The regression equation Y=53.201-5.578X3+2.852X6+2.136X5 （leaf structure X3， oil X5， chroma X6） was set up with R2 as 0.818，and it had good fitting degree. The path analysis results showed that leaf structure， chroma and oil had comparatively large effects on tobacco softness. In conclusion， the softness of tobacco in Jiangxi had certain differences， and was closely related to each index of appearance quality. The results provided the possibility to carefully evaluate tobacco quality with softness as one of the evaluation indexes of appearance quality.

KeywordsFlue-cured tobacco； Softness； Appearance quality； Relationship analysis

煙叶柔软性是烟叶外观质量中的一项，主要是根据感官判断烟叶的柔软程度[1]。王亚平等[2]依据感官将烟叶柔软性划分为柔软、较柔软、稍柔软、稍硬脆和硬脆五个档次，并指出烟叶柔软性与烟叶外观质量各指标密切相关。目前，我国对烟叶外观质量的评价，无论是已推广使用的外观指标（成熟度、叶片结构等），还是较新研究的外观属性（柔软性），都是以眼观、手摸等感官方法判断，用文字定性描述，或者赋值进行评价[3]，具有难以消除的主观性和不确定性，因此，烟叶外观质量从定性描述向定量评价是我国烟叶发展的必然途径[4]。烟叶柔软度是运用电脑柔软度测定仪将烟叶压入测量槽，仪器记录烟叶的抗弯曲力以及与测量槽两侧处摩擦力的总和，表示烟叶的柔软性。……