中国烟草科学2026，Vol.47Issue(2)：15-21,31,8.DOI:10.13496/j.issn.1007-5119.2026.02.003
NtCEP7小肽对烤烟生长发育及产量和品质的影响
Effects of NtCEP7 Peptide on the Growth,Development,Yield and Quality of Flue-cured Tobacco
摘要
Abstract
To investigate the effects of NtCEP7 peptide on tobacco growth,yield,and quality,this study screened the optimal application concentration of NtCEP7 peptide through pot experiments.Furthermore,field experiments were conducted to evaluate the effects of NtCEP7 foliar application,monitoring tobacco growth at different developmental stages and evaluating the yield and quality of flue-cured tobacco leaves.The results showed that foliar application of NtCEP7 peptide at all concentrations could promote the growth of tobacco plants.Considering both efficacy and cost,1 μmol/L NtCEP7 was identified as the optimal concentration.Compared to the control group,the maximum leaf area,total plant mass,and aboveground mass of tobacco seedlings under 1 μmol/L NtCEP7 treatment increased by 11.10%,31.62%,and 20.88%,respectively.Additionally,root application of NtCEP7 also promoted plant growth.Field experiments demonstrated that foliar application of 1 μmol/L NtCEP7 peptide at the seedling recovery stage,rosette stage and vigorous growth stage significantly improved the growth of tobacco plants.At the seedling recovery stage,the maximum leaf area,plant height,leaf number,and SPAD value of tobacco plants under NtCEP7 treatment increased by 79.44%,58.36%,36.83%,and 2.98%,respectively.At the rosette stage,the maximum leaf area and plant height were increased by 27.53%and 16.80%.At the vigorous growth stage,the maximum leaf area,plant height,stem circumference,and SPAD value increased by 15.60%,5.09%,13.52%,and 8.95%,respectively.Furthermore,NtCEP7 application significantly improved the appearance quality of flue-cured tobacco leaves,leading to a 4.85%increase in output value.Chemical analysis revealed that the nicotine and total nitrogen contents in the upper leaves were increased by 4.48%and 3.57%,and the reducing sugar and total sugar contents in the middle leaves were increased by 2.77%and 3.55%.Sensory evaluation showed that NtCEP7 treatment significantly improved the aroma and smoke characteristics of cured tobacco leaves,with notable improvements in the upper leaves.In conclusion,the NtCEP7 peptide can effectively promote tobacco growth,increase yield and improve quality,offering significant applied value in tobacco production.关键词
烟草/生长发育/NtCEP7小肽/产量/品质Key words
tobacco/growth and development/NtCEP7 peptide/yield/quality分类
农业科技引用本文复制引用
孔娜,李伟,郭永峰,刘文婷,侯丽霞,王佳丽,孟宪进,高晓明,杜云峰,杜本林,陈刚..NtCEP7小肽对烤烟生长发育及产量和品质的影响[J].中国烟草科学,2026,47(2):15-21,31,8.基金项目
中国烟草总公司山东省公司科技重点项目(KN307-202306) （KN307-202306）
