Table 1.
Cultivar details for the utilized N. tabacum seeds. All seeds were produced in the same season at the indicated seed production facilities in China. Information related to disease resistance was obtained from the State Tobacco Monopoly Administration (http://www.tobacco.gov.cn). The nicotine content refers to the proportion in dry tobacco leaves that were cultivated in Guizhou/China (Xia et al., 2017).
| Genotype name | Breeding type | Pedigree | Geographic origin of seeds | Location of seed production/harvest year | Disease resistance of cultivar | Nicotine content [%] |
|---|---|---|---|---|---|---|
| Bina1 | Hybrid | Yunyan2 × K326 (mutant line) | Guizhou, China | 26°52′56″ N, 107°05′6″ E/2017 | Black shank: moderately resistant; Nematodes: moderately resistant; TMV: moderately susceptible |
1.69 |
| K326 | Hybrid | McNair30 × NC95 | Kentucky, USA | 24°20′2″ N, 102°31′50″ E/2017 | Black shank: highly resistant; Nematodes: moderately resistant; TMV: highly resistant |
2.24 |
| PVH1452 | Hybrid | Information not available |
Rio Grande do Sul, Brazil | 24°20′2″ N, 102°31′50″ E/2017 | Black shank: moderately resistant; Nematodes: moderately susceptible; TMV: moderately susceptible |
2.39 |
| Yunyan87 | Hybrid | Yunyan2 × K326 | Yunnan, China | 26°52′56″ N, 107°05′6″ E/2017 | Black shank: moderately resistant; Nematodes: moderately resistant; TMV: highly susceptible |
2.02 |