烤烟叶位与主要化学成分及外观质量的分析

Study of the Relationship between Leaf Position and Chemical Component and Appearance Quality

摘要: [目的]为了解安顺当前主栽品种云烟85烟叶不同叶位主要化学成分及农艺性状的变化情况，生产出适应卷烟品牌需求的优质烟叶，确保优质原料的有效供给，制定出与工业原料需求相匹配的生产技术体系，切实搞好优化烟叶结构，为烟叶生产提供技术指导。[方法]选择一块长势正常烟地，按5点取样法对100株烟株1~18叶位烟叶进行挂牌，烘烤后按照叶位归类进行相关数据测量及送检，分析叶位间化学成分及外观质量。[结果]随着烟叶叶位增加，烟碱含量增加；随着叶位增加，烟叶钾含量降低；烟叶单叶重从第1叶位至15叶位随着叶位增加，单叶重增加，16叶位达到最大值为19.08克/片，从16叶位开始后逐渐下降；最大叶长出现在11~12叶位为74.95 cm；最大叶宽出现在第7叶位为26.5 cm。

Abstract: [Objective] Yunyan 85 is the main cultivated variety in Anshun city. This article aimed to study a advanced bake method to produce tobacco leaf of high quality to meet the needs of the cigarette brand, ensure the effective supply of high quality raw materials, develop a production technology system matching the demand for industrial raw materials and provide technical guidance for tobacco leaf production. [Method] Choose a normal tobacco field, marked 1~18 tobacco leaves of 100 tobacco plants. Chemical composition and appearance quality of every leaf position were analyzed after baking. [Result] The result showed that nicotine content increased with tobacco leaves position. While the content of potassium decreased with leaves position. Individual tobacco leaf weight increased with leaf position from 1 to 15, decreased gradually from the No. 16 leaves, and the maximum individual leaf weight was 19.08 g. The largest leaf length (74.95 cm) was observed with the No. 11~12 leaves; and the maximum leaf width, 26.5 cm, appeared with the leaf No. 7.