Breeding and characterization of a new cigar tobacco variety Xueyaxiang 1
[Objective]This study aims to breed a new variety of cigar wrapper tobacco suitable for domestic cultivation with high quality and disease resistance.[Methods]This study used the high-quality cigar tobacco variety M6's male sterile line(MSM6)as the female parent and the disease-resistant and high-yielding J20 as the male parent to hybridize and breed the male sterile first-generation hybrid variety Xueyaxiang 1.[Results]This variety demonstrates strong and uniform growth in the field;it exhibits good disease resistance,being immune to Tobacco mosaic virus(TMV),moderately resistant to black shank,and moderately to highly resistant to bacterial wilt and black root rot;the main economic traits of the tobacco leaves are desirable,with a well-balanced chemical composition,appearance quality,and physical properties that meet the requirements of high-quality wrappers;the cigar style is distinctive,with good aroma quantity and quality.[Conclusion]Xueyaxiang 1 is a new variety of cigar tobacco independently breed in China,balancing quality,economic value,and disease resistance.The quality of its leaves meets the demands of Chinese-style wrappers and is suitable for cultivation in Sichuan and Hubei tobacco regions,as well as other similar regions in China.