叶面调理剂对上二棚烟叶内在品质的影响

Effects of Foliar Conditioners on Intrinsic Quality of Upper Leaves of Flue-Cured Tobacco

为研究不同类型叶面调理剂(营养型调理剂、代谢型调理剂、感防型调理剂和复合型调理剂)对上二棚烟叶等级结构、内在品质等方面的影响,研究以云烟87为供试烤烟品种进行随机区组试验。结果表明:喷施叶面调理剂的处理倒3叶和倒6叶的叶面积分别比对照(喷施清水)增加19.9%~28.2%和4.7%~10.5%,产值和上等烟率分别比对照提高2.1%~15.7%和6.0%~10.8%;烟叶等级结构均优于对照,中部上等烟率分别比对照提高0.6~8.0个百分点;烟叶主要化学成分的适宜性和协调性均比对照有所提高,其感官评吸质量也不同程度地优于对照。综合比较,以复合叶面调理剂的优势最为明显,代谢调理剂处于第二位。

In order to study the effect of different types of foliar conditioners(nutritional type,metabolic type,susceptibility-controlling type and complex type)on grade structure and intrinsic quality of upper tobacco leaves,a randomized block experiment was conducted with Yunyan 87 as test material.The results showed that all the foliar conditioner treatments promoted the increase of leaf area of upper leaves;compared with CK(spraying clean water),the leaf area of the top 3rd leaf and the top 6th leaf was increased by 19.9%-28.2%and 4.7%-10.5%,respectively;the output value and the proportion of premium tobacco were 2.1%-15.7%and 6.0%-10.8%higher,respectively;the grade structure of tobacco was better;the proportion of premium tobacco harvest from the middle stem was 0.6-8.0 percentage points higher;the suitability and harmony of main chemical components in upper tobacco leaves were generally higher;the sensory quality was assessed better.Finally,the comprehensive comparison has confirmed that the complex conditioner has advantages over other treatments,followed by the metabolic conditioner.