Effects of Different Cultivation Measures on Haiyan 101 Cigar Tobacco Leaf Quality in Fujian Tobacco Area and Its Comprehensive Evaluation

Lin Qing; Guo Yidian; Zhang Kai; Xu Dongsheng; Liu Gaofeng; Ding Songshuang; Peng Guowei; Xie Haibin; Shi Xiangdong

doi:10.14083/j.issn.1001-4942.2026.02.010

Abstract：To optimize the cultivation practices for the cigar tobacco variety Haiyan 101 in Fujian tobac-co-growing areas,an L9(34)orthogonal experiment was conducted to investigate the effects of three factors and their interactions—transplanting date(A1:March 5;A2:March 15;A3:March 25),plant spacing(B1:40 cm;B2:37 cm;B3:35 cm),and number of retained leaves(C1:18;C2:20;C3:22)—on growth of Haiyan 101,as well as chemical composition,physical properties,wrapper yield,and overall quality of cured leaves after fermentation.The results were as follows.① From the perspective of single-factor analysis,with the delay of transplanting date,the nicotine content of fermented tobacco leaves firstly decreased and then in-creased,the chlorine content increased,the tensile strength firstly increased and then decreased,and the ci-gar wrapper yield rate decreased.With the reduction of plant spacing,the plant height,and the nitrogen-alka-loid ratio,leaf mass per unit area and single leaf mass of fermented cigar tobacco leaves firstly increased and then decreased,while the cigar wrapper yield rate firstly decreased and then increased.With the increase of the number of retained leaves,the total nitrogen content of fermented tobacco leaves firstly increased and then decreased,the cigar wrapper yield rate firstly decreased and then increased,and the leaf width decreased.②The main cultivation factors affecting agronomic traits were transplanting date and plant spacing;the main cul-tivation factor affecting the chemical compositions of tobacco leaves was plant spacing;the main cultivation factors affecting the physical properties of tobacco leaves were transplanting date and plant spacing;the main cultivation factor affecting the cigar wrapper yield rate was transplanting date.③ In the comprehensive evalua-tion,the treatment T1(A1B1C3,transplanting on March 5 with plant space of 40 cm and 22 retained leaves per plant)performed the best.Integrating the comprehensive assessment results and economic traits,the opti-mal cultivation protocol for Haiyan 101 in Fujian tobacco-growing areas was recommended as transplanting on March 5 combined with plant space of 40 cm and retaining 22 leaves per plant.