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Chinese Agricultural Science Bulletin ›› 2017, Vol. 33 ›› Issue (31): 27-32.doi: 10.11924/j.issn.1000-6850.casb17080100

Special Issue: 烟草种植与生产

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Effect of Removed Leaves Numbers on Hierarchical Structure and Industrial Availability of Tobacco in Qin-ba Mountains

  

  • Received:2017-08-23 Revised:2017-10-02 Accepted:2017-10-10 Online:2017-11-27 Published:2017-11-27

Abstract: To find out the effect of different removed leaves number on hierarchical structure of tobacco and industrial availability, field experiments were carried out to study nine kinds of different removed leaves number on leaf dry weight, fresh/dry ratio, economic traits and hierarchical structure of tobacco use ‘Nanjiang No.3’ during 2014 to 2015. The results showed as followed: (1)the fresh weight, dry weight, leaf dry weight, fresh/dry ratio of tobacco gained significant difference among all treatments, and the correlation was positive with removed leaves number. Among them, the yield of the treatment was stable in which the lower 4 pieces of unsuitable tobacco leaves decreased and the upper 1-3 pieces of top leaves uncured,gained the lowest fresh/dry ratio and highest dry weight of tobacco. (2) The yield of the treatment was stable in which the lower 3-4 pieces of unsuitable tobacco leaves decreased and the upper 1-2 pieces of top leaves uncured, quality grade structure was optimal, and the hierarchical structure was more suitable. In summary, the integrate analysis showed that it was the most appropriate treatment to gain the most stable yield, economic values and quality grade structure in Yangxian’s flue-cured tobacco of Shaanxi Province that to the lower 4 pieces of unsuitable tobacco leaves decreased and the upper 1st piece of top leaf uncured.