不同时期优化结构对烟叶品质的影响

为研究不同时期优化结构对烤烟生长和产质量的影响,通过田间小区对比试验,研究不同时期优化烟叶结构对烤烟生长发育和产品质量的影响。结果表明:T3处理有助于促进烟株叶片开展,增加光合作用面积,促进烟株干物质积累;T1处理增加烟叶干鲜比,增强烟株抗逆性;化学成分方面表现为T3处理较好。综合来看,烟株采烤时3片脚叶留烟株不进烤,采收结束时留2片顶叶不进烤,有助于促进烟叶品质的提升。

Effect of Optimized Leaf Removal Treatment at Different Growing Stages on the Quality of Flue-cured Tobacco Leaves

Tobacco plants were treated by removing some of their leaves at different growth stages in a comparative field trial to observe the effect of the treatments on the growth and development of leaves and on the quality of the leaves cured. The results showed that Treatment T3 contributed to the expansion of tobacco leaves, increased the leaf area for photosynthesis and dry matter accumulation of tobacco plant, while Treatment T1 increased the ratio of fresh to dry leaf weight and enhanced plant resistance of tobacco leaves. Treatment T3 showed better chemical composition. Generally, 3 leaves from the bottom of the tobacco plant were not harvested for flue-curing and 2 top leaves were not harvested for flue-curing at the end of harvest stage. This could help improve the quality of tobacco leaves flue-cured.