烤烟品种翠碧一号上部叶适宜采收方式研究

为探究翠碧一号上部叶最佳采收方式，提高烟叶质量和可用性。以翠碧一号上部充分成熟烟叶为材料，设置3片、4片、5片、6片一次逐叶采收和5片、6片一次带茎采收6个处理，研究了上部叶不同采收方式对烤后烟经济性状、外观、化学成分、感官及致香物质的影响。结果表明，翠碧一号上部叶不同采收方式的烤后烟质量存在显著差异，对等级结构、均价、中部烟比例和感官质量等进行综合分析看出，6片一次采收烤后烟叶整体质量和经济效益最好，其中6片一次逐叶采收方式更有利于提高上等烟比例、均价和中部烟比例，分别比对照提高了8.56%、4.95元/kg和8.15%，6片一次带茎采收方式更有利于提高上中等烟比例和致香物质含量，分别提高了8.13%、20.22%，且显著改善感官质量。可见，在生产实际中，翠碧一号上部叶最佳采收方式为6片叶充分成熟时一次采收烘烤。

Suitable Harvesting Method of Upper Leaves of Flue-cured Tobacco Variety CB-1

This study aims to optimize the harvest method of upper leaves of flue-cured tobacco CB-1 and to improve leaf quality and usability. The fully mature upper leaves of CB-1 were used as materials in this experiment, with six treatments consisting of ordinary picking 3, 4, 5 and 6 upper leaves leaf by leaf at a time, and picking 5, 6 upper leaves with stalk at a time. The effects of different harvesting methods on economic characters, appearance, chemical components, sensory and neutral aroma components in the upper leaves of CB-1 were studied. The results showed that there were significant differences in the quality of flue-cured tobacco leaves with different harvesting methods in the upper leaves of CB-1. Central to high grade leaf proportion, average price, middle leaf proportion and sensory quality of comprehensive analysis, the overall quality and economic benefit were best from picking 6 upper leaves at a time. Among the treatments, picking 6 upper leaves by leaf by leaf at a time was more favorable to increase high grade leaf proportion, average price and middle leaf proportion, which were increased by 8.56%, 4.95 yuan/kg and 8.15%, respectively. Compared with the control, picking 6 upper leaves with stalk at a time was more favorable to increase high-middle grade leaf proportion and content of neutral aroma components, which were increased by 8.13% and 20.22%, respectively, and the sensory quality was significantly improved, too. In summary, the best harvesting method for the upper leaf of CB-1 is picking 6 upper leaves at a time with fully mature in production practice.