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对我国江苏省淮阴县、北京市平谷县、内蒙古自治区库伦旗、陕西省吴旗县和甘肃省武威市的不同年龄的沙打旺(AstragalusadsurgensPal.)病害进行了调查,并以生长地≥0℃年积温和草原湿润度为指标,分析了病害与产地环境条件的关系。结果表明,沙打旺植株田间发病率随草地年龄而增加,在四龄时最高可达100%。共发现10种真菌病害,它们是锈病(Uromyceslapponicus)、白粉病(Erysiphepisi)、小丛壳炭疽病(Glomerelasp.)、交链孢黑斑病(Alternariaalternata)、多主枝孢叶斑病(Cladosporiumherbarum)、茎点霉褐霉病(Phomasp.)、棘壳孢叶斑病(Pyrenochaetasp.)、丝核菌基腐病(Rhizoctoniasolani)、壳针孢斑枯病(Septoriasp.)和匍柄霉叶斑病(Stemphyliumbotryosum)等,另发现细菌病、病毒病(花叶病)和菟丝子各1种。细菌、病毒未鉴定,菟丝子为中国菟丝子(Cuscutachinensis)。各地病害发生种数与≥0℃年积温相关不显著(P>0.05),但与草原湿润度(K值)显著相关?
Astragalus adsurgensPal diseases were investigated in Huaiyin County, Jiangsu Province, Pinggu County, Beijing Municipality, Kulun Banner, Inner Mongolia Autonomous Region, Wuqi County, Shaanxi Province and Wuwei City, Gansu Province. Annual accumulated temperature and grassland moisture as an index, analyzed the relationship between the disease and the environmental conditions of origin. The results showed that the incidence of Astragalus adsurgens plants in the field increased with the age of grasslands, up to 100% at the age of four. A total of 10 fungal diseases were found, which are Uromyces lapponicus, Erysiphepisi, Glomerelasp., Alternaria alternata, Cladosporium leaf blotch, , Phomasp., Pyrenochaetasp., Rhizoctonia solani, Septoriasp. And Stump leaf spot, (Stemphyliumbotryosum), the other found bacterial disease, viral disease (mosaic) and dodder each one. Bacteria, virus unidentified, dodder is Chinese Cuscutachinensis (Cuscutachinensis). The number of disease occurrence in each area was not significantly related to the accumulated temperature ≥0 ℃ (P> 0.05), but significantly related to the wetness (K value) of grassland.