Effect of Different Spacing on Structure of Fluecure Tobacco Leaf Grade  

不同株距对烟叶等级结构的影响（英文）

作　　者：赵锦超[1] 黄刘亚 孙永波[2] 张永辉[1] 谢强[1] 年夫照[2] 顾勇[1] 

机构地区：[1]四川省烟草公司泸州市公司,四川泸州646000 [2]云南农业大学烟草学院,云南昆明650201

出　　处：《Agricultural Science & Technology》2017年第6期1016-1020,共5页农业科学与技术（英文版）

基　　金：Supported by Project of Luzhou Branch Company of Sicuan Tobacco Company:Application of Integrated Technique for Improving Tobacco Grade Structure~~

摘　　要：[Objective] This study was conducted to investigate the effects of different plant spacing on tobacco grade structure, growth stages, agronomic traits, yield and chemical composition under fixed row spacing. [Method] Under fixed row spacing （120 cm）, 4 treatments were designed （40, 50, 60 and 45 cm）. The growth stages, agronomic traits, economic traits and chemical composition of flue-cured tobacco leaves were compared and analyzed. [Result] with the increase of plant spacing, there were no significant differences in the emergence time of growth stages be- tween different treatment groups before resettling stage, and the resettling stage ap- peared 1-2 d in advance. At different tobacco growth stages, the changing trends of tobacco agronomic traits with the change of plant spacing were different. [Conclusion] With the increase of plant spacing, the planting density of tobacco de- creased, and the nicotine content increased; and the yield of tobacco decreased continuously, while the quality was improved, but when the plant spacing was im- proved to certain degree, the quality of tobacco also decreased, and at the plant spacing of 50 cm, the output value of tobacco was the highest.[目的]该试验在行距固定的情况下,通过设置不同株距,探究不同株距对烟叶等级结构、生育期、农艺性状、烟草产值及烤后化学成分的影响。[方法]在行距一定的情况下(120cm),设置四个处理(40、50、60、45 cm),分析比较不同处理组的生育期、农艺性状、经济性状和烤后烟叶的化学成分。[结果]随着株距的增大,团棵期之前不同处理组各生育期出现的时间没有明显差别,团棵期出现的时间会提前1~2 d。在不同生育期,烟草农艺性状随株距的变化而变化的趋势是不同的。[结论]随着株距的增大,烟草种植的密度减小,烟碱的含量则随着株距的加大而增高,烟草的单位产量在不断下降,但质量有所提高,当株距增加到一定程度时,烟草的质量也会随之下降,当株距为50cm时,烟草的产值最高。

关 键 词：Row spacing TOBACCO Grade structure 

分 类 号：S572[农业科学—烟草工业]