Burley 21 Tobacco

Burley 21 Nicotiana tabacum L[ Approximately 100 seeds per packet ] As the first tobacco cultivar with resistance to wildfire bacteria, 'Burley 21' was an important development, taking many years and the cooperative work of public and private organizations to accomplish.[1,2] Classified as an "air-cured" Burley-type tobacco, 'Burley 21' grows five to six feet in height. Its leaves are large (eleven inches wide by twenty-six long), and historically used for cigarette and pipe tobacco blending. 'Burley 21' combines disease resistance with good standup tobacco-type; high quality, and high-yielding potential.'Burley 21' was developed from a complex series of crosses and back-crosses[3] which included the species Nicotiana longiflora for its resistance to wildfire bacteria, and Nicotiana glutinosa for its resistance to tobacco mosaic virus of the local-lesion type. By the time that it was stabilized and released for planting in 1955, eight generations of selfing had been accomplished. Re