摘要
为明确不同来源腐烂茎线虫致病性差异,采用盆栽试验,对分离自马铃薯(DXP2、HLJP1和SXP1)、党参(TCC1)和当归(WYA3和HZA3)的6个群体进行致病性测定。每个群体分别接种马铃薯、甘薯和党参(500条/盆,3个重复),60d后统计病情级别和繁殖系数。结果表明,6个群体均可侵染马铃薯,4个群体可侵染甘薯,所有群体均未侵染党参。不同群体的致病性存在明显差异,马铃薯线虫群体对甘薯和马铃薯具有较强致病性,党参线虫群体可侵染马铃薯和甘薯,但病情级别和繁殖系数较低。当归线虫群体只侵染马铃薯,且致病性和繁殖系数极低。
In order to clarify pathogenicity difference of different Ditylenchus destructor populations,a pathogenicity experiment on six populations of Ditylenchus destructor,including DXP2,HLJP1 and SXP1 from potatoes,TCC1 from Radix Codonopsis,WYA3 and HZA3 from angelica,were conducted by pot experiment.Potato,sweet potato and Radix Codonopsis were inoculated with each nematode population(500 nematodes/pot,three replications),and disease grades and reproduction coefficients were calculated after 60 d.The results showed that potato was infected with all of six populations,the sweet potato was infected with four populations and Radix Codonopsis was not infected with any population.And the pathogenicities were distinctly different.Nematode populations from potato showed higher pathogenicity in sweet potato and potato.The population from Radix Codonopsis could infect both potato and sweet potato with low disease grades and reproduction coefficients.So the populations from angelica can only infect potato with a very low disease grade and reproduction coefficient.
作者
倪春辉
李惠霞
刘永刚
韩变
石明明
魏雪娟
李文豪
徐雪芬
NI Chunhui;LI Huixia;LIU Yonggang;HAN Bian;SHI Mingming;WEI Xuejuan;LI Wenhao;XU Xuefen(College of Plant Protection,Gansu Agricultural University/Biocontrol Engineering Laboratory of Crop Diseases and Pests of Gansu Province,I anzhou,Gansu 730070 China;Institute of Plant Protection,Gansu Academy of Agricultural Sciences,Lanzhou,Gansu 730070 China)
出处
《西北农业学报》
CAS
CSCD
北大核心
2022年第8期1076-1083,共8页
Acta Agriculturae Boreali-occidentalis Sinica
基金
国家自然科学基金(31760507)
国家重点研发计划子课题(2018YFC1706301)
甘肃省现代农业产业体系(中草药)(GARS-ZYC-4)。
关键词
腐烂茎线虫
不同寄主群体
致病性差异
盆栽接种
Ditylenchus destructor
Different host groups
Pathogenicity differences
Pot inoculation