吉林省大豆新品种(系)大豆花叶病毒病抗性分析

Analysis of Resistance of New Soybean Varieties to Soybean Mosaic Virus in Jilin Province

通过2003～2005年对吉林省大豆新品种(系)大豆花叶病毒病的抗性鉴定,初步明确,吉林省新育成的大豆品种和后备材料较抗大豆花叶病毒病。在5个不同生态区内,新品种(系)抗大豆花叶病毒病的水平由高到低排序:四平地区>长春地区>吉林和白城地区>通化地区。前两个地区抗源丰富。品种抗性以抗弱毒株系为主,抗中毒株系居中,感强毒株系比例较低。表明吉林省目前流行的病毒株系仍然是弱毒株系,伴随一定程度的中毒株系。

Resistance of new soybean varieties to Soybean Mosaic Virus （SMV） were evaluated during me period from 2003 to 2005 in Jilin province. The level of resistance of these varieties to SMV was as follows： varieties growing in Siping 〉 varieties growing in Changchun 〉 varieties growing in Jilin or Baicheng 〉 varieties growing in Tonghua. Varieties growing in Siping and Changchun were more resistant than those growing in other areas. Most of these varieties expressed resistance to low virulence strains of SMV, some resistant to moderate virulence strains and fewer varieties resistant to strong virulence strains. These results indicated that low virulence strains of SMV were dominant in Jilin province, accompanied by some moderate virulence strains of SMV.