Research on Black Shank Disease Resistance of Flue-cured Tobacco Hybrid YY021
LIANG Aixia
LI Lihua
SONG Zhengxiong
Li Xuejun
SUN Huan
SUN Jiping
Abstract：In order to evaluate the black shank disease resistance of flue-cured tobacco hybrid YY021,a combination of indoor inoculation identification and disease nursery identification was used to identify YY021 and its male parent Heluo 1 and female parent MS Yuyan 13,the disease resistant variety Gexin 3,the moderately resistant variety Jinxing 6007,the disease susceptible variety Xiaohuangjin 1025,and the main cultivar of Zhongyan 100,as the test varieties,with the black shank disease fungus No.1 race,for three consecutive years,black shank disease resistance of the test varieties was characterized,and the incidence rate and disease index were calculated for preliminary evaluation of black shank disease resistance.The results showed that the incidence rate of black shank disease and disease index of the flue-cured tobacco hybrid YY021 were between the parents,with mesophilic advantage.YY021 black shank disease resistance was slightly better than the main cultivar of Zhongyan 100,slightly lower than the disease resistant varieties Gexin 3,so it was perliminarily judged that YY021 was moderately resistant to the black shank disease No.1 small species.
Keywords：Flue-cured tobaccoYY021Black shank disease
Publication Date：2025-06-10
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：4( 38-41 )