Table 7 Damage information of Corynespora leaf spot of tobacco on different mature leaves on tobacco cultivar Yunyan 87.
Tobacco leaf maturity | Disease spot diameter/mm | ||
|---|---|---|---|
5d | 8d | 12d | |
Mature | 12.95 ± 0.73a | 16.38 ± 1.09a | 17.74 ± 1.11a |
Proper mature | 10.37 ± 0.69b | 11.92 ± 0.84b | 13.40 ± 0.89b |
Immaturity | 8.31 ± 0.54c | 8.98 ± 0.52c | 10.48 ± 0.79c |