Relationship of Resistance to Soft Rot (Erwinia carotovora)of Seedling and Adult Plants in Chinese Cabbage

doi:10.3321/j.issn:1000-7091.1995.03.017

Abstract

Abstract: A preliminary method for identification of seedling resistance of Chinese cabbage to soft rot (Erwinia carotovora) was established 66 varieties were tested according to the method. A significant variation of resistance both to root invasion and to latent infection were existed among different varieties, with bacterial population in root tissues from 0 (90009 et al.) to 2. 8 × 10⁵CFU/g. fw(90008), and disease index from 24.3 (90280)to 100 (90003 and 90272) when the root was induced disease. No correlation was found between resistance to root invasion and to latent infection. But in field test the occurrence of disease of adult plants was correlated with the bacterial population in seedling tissues.

Key words: Chinese cabbage, Soft rot (Erwinia carotovora), Seedling resistance

CLC Number:

S635.101

Zhang Xuejun, Li Runshuang, Ling Hongtong, Wu Aimin, Wang Jinsheng, Zhang Bin, Qiu Yuxiu, Song Lianjiu, Wang Yulong. Relationship of Resistance to Soft Rot (Erwinia carotovora)of Seedling and Adult Plants in Chinese Cabbage[J]. ACTA AGRICULTURAE BOREALI-SINICA, 1995, 10(3): 80-83. doi: 10.3321/j.issn:1000-7091.1995.03.017.

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