田间摘除不适用鲜烟叶对烤烟经济性状的效应分析

摘要

为明确田间不适用鲜烟叶的消化处理方法，采用正交试验设计与直观分析、方差分析、综合评价方法研究了田间不适用鲜烟叶的消除叶片数和时期对烤烟经济性状的影响。结果表明：影响烤烟上等烟比例、均价和产量的主要因素是摘除下部叶片数，其次是摘除顶叶片数；影响烤烟产值的主要因素是摘除下部叶片数，其次为摘除下部叶片数时期。邵阳烟区稻田烤烟优化烟叶结构以打顶时摘除下部2片烟叶和倒数第1烤时摘除顶部1片烟叶为最佳。%n order to find an effective method of removing and destroying the inapplicable fresh leaves in the field, the direct-viewing analysis, variance analysis and comprehensive evaluation are employed to study the effects of the removed leaf number and the removing period on the economic characters of flue-cured tobac-co. The results show that the key factor to influence the fine tobacco ratio, mean price and yield is the num-ber of lower leaves removed, followed by the number of the top leaves removed. While the factor to influence the yield and value of tobacco is the number of the lower leaves removed, followed by the period of removing the lower leaves. In Shaoyang, Hunan Province, the optimal leaf structure for flue-cured tobacco could be achieved by removing the two lower leaves and the first leaf from the bottom at the time of plant topping and removing the top leaf at the time of the first roast.