增密减叶措施对烤烟生长、光合特性及产质量的影响  

Effects of measures to increase planting density and reduce leaf retention on the growth,photosynthetic characteristics,yield and quality of flue-cured tobacco

作　　者：葛嘉雪 张启莉 崔钰杰 付国占 王小东 何佶弦 GE Jia-xue;ZHANG Qi-li;CUI Yu-jie;FU Guo-zhan;WANG Xiao-dong;HE Ji-xian(College of Agriculture/Henan Province Dryland Agricultural Engineering Technology Research Center,Henan University of Science and Technology,Luoyang 471023,Henan,China;Guangyuan Branch of Sichuan Tobacco Company,Guangyuan 628100,Sichuan,China)

机构地区：[1]河南科技大学农学院/河南省旱地农业工程技术研究中心,河南洛阳471023 [2]四川省烟草公司广元市公司,四川广元628100

出　　处：《湖北农业科学》2024年第10期68-73,共6页Hubei Agricultural Sciences

基　　金：中国烟草总公司四川省公司科技计划项目(SCYC202211)。

摘　　要：为了提高优质烟叶的比例和烟草原料的工业利用率,在四川省广元烟区以云烟87品种为对象,采用种植密度和留叶数两因素随机区组试验,旨在阐明不同种植密度和留叶数对烤烟产质量的影响。结果表明,适当增加烤烟种植密度减少留叶数时,烤烟能完成正常生长发育,且相较于其他处理在叶片发育上具有显著优势;在中、低密度和中、低留叶数处理下,烟叶光合能力更强;在M2密度和L2留叶数水平下,烤烟在均价和中、上等烟比例上取得较好表现,产值最高。此外,适当增密减叶措施降低了烤后叶片烟碱含量,提高了还原糖、总糖含量及糖碱比,化学成分更为协调,烟叶评吸质量具有显著优势。综合分析认为,在四川省广元烟区采用种植密度18750株/hm^(2)、留叶数16~18片/株时烟叶质量较好。In order to improve the proportion of high-quality tobacco leaves and the industrial availability of tobacco raw materials,Yunyan 87 was studied in Guangyuan tobacco-growing area of Sichuan Province,and two factors of planting density and number of leaves were used to design a randomized block experiment,aiming to clarify the effects of different planting density and the number of leaves on the yield and quality of flue-cured tobacco.The results showed that when the planting density of flue-cured tobacco was increased appropriately and the number of leaves was decreased,flue-cured tobacco could achieve normal growth and development,and compared with other treatments,flue-cured tobacco had significant advantages in leaf development;under medium and low density and medium and low number of leaves,the photosynthetic capacity of tobacco leaves was stronger;under M2 density and L2 leaves,flue-cured tobacco achieved better performance in average price,and the proportion of medium and high-grade tobacco,and the output value was the highest.In addition,the appropriate increase in density and decrease in the number of leaves left reduced the nicotine content of leaves after roasting,increased the content of reducing sugar,total sugar and sugar-base ratio,and the chemical composition was more coordinated,which had a significant advantage in tobacco quality evaluation.According to comprehensive analysis,the tobacco quality in Guangyuan tobacco growing area,Sichuan Province was better when the planting density was 18750 plants/hm^(2)and the number of leaves left was 16~18 leaves per plant.

关 键 词：种植密度 留叶数 烤烟 生长 光合特性 产质量 

分 类 号：S572[农业科学—烟草工业]