花生抗网斑病品种筛选及抗病性与产量损失的关系  

Evaluation of peanut accessions resistance against Phoma arachidicola and relationship between disease-resistance and yield loss

作　　者：许曼琳[1] 张霞 吴菊香[1] 于静 郭志青 李莹 谢宏峰[1] 谭德云 周如军[3] 迟玉成[1] XU Man-lin;ZHANG Xia;WU Ju-xiang;YU Jing;GUO Zhi-qing;LI Ying;XIE Hong-feng;TAN De-yun;ZHOU Ru-jun;CHI Yu-cheng(Shandong Peanut Research Institute,Qingdao 266100,China;Zibo Institute of Agricultural Science,Zibo 255033,China;Shenyang Agricultural University,Shenyang 110866,China)

机构地区：[1]山东省花生研究所,山东青岛266100 [2]淄博市农业科学研究院,山东淄博255033 [3]沈阳农业大学,辽宁沈阳110866

出　　处：《中国油料作物学报》2021年第4期731-735,共5页Chinese Journal of Oil Crop Sciences

基　　金：国家自然科学基金(31972967);山东省自然科学基金(ZR2018LC015);山东省农业科学院农业科技创新工程(CXGC2018E21,CXGC2016B11);山东省现代农业产业技术体系花生创新团队建设项目(SDAIT-04-07);山东省重大科技创新工程项目(2019JZZY010702)。

摘　　要：花生茎点霉(Phoma arachidicola Marasas Pauer&Boerema)引起的花生网斑病在生产上普遍流行、危害严重,2018-2019年通过2年的田间接种试验对国内65份花生种质资源网斑病抗性进行测评。以采自山东莱西的病原菌菌株Wb2制备105/mL的孢子悬浮液喷洒于花生叶片表面进行接种,对照区喷施50%咯菌腈WP防治花生网斑病菌。结果表明,65份种质中,抗病(resistant,R)资源8份,占鉴定资源总数的12.3%;中度抗病(moderately resistant,MR)资源9份,占比13.8%;感病(susceptible,S)资源37份,占比56.9%;高度感病(high susceptible,HS)资源11份,占比16.9%。测定抗病性不同资源产量损失差异,结果表明,花生网斑病菌对花生产量影响显著,产量损失率随抗病性的降低而升高。本研究为花生抗网斑病育种提供抗源材料,并为病害产量损失评估提供理论依据。Peanut web blotch caused by Phoma arachidicola is a serious constraint in peanut production.A two-year field experiment was carried out to evaluate the resistance of 65 domestic peanut germplasms to P.arachidicola in 2018-2019.A 105/mL spore suspension was prepared from Wb2,a pathogenic strain of P.arachidicola collected from Laixi,Shandong Province,and sprayed on the surface of leaves for inoculation.The control area was sprayed with 50%fludioxonil WP for control of peanut web blotch.The result showed that,8 accessions were resistant(R),accounting for 12.3%,9 accessions were moderate resistant(MR),accounting for 13.8%,37 accessions were susceptibility(S),accounting for 56.9%,and 11 accessions were high susceptibility(HS),accounting for16.9%.The yield loss of accessions with different resistance was determined,and the results showed that the effect of Phoma arachidicola on peanut yield was significant,the yield loss rate increased with the decrease of disease resistance.This study provides resistant materials for peanut resistant breeding and provides a theoretical basis for yield loss assessment.

关 键 词：花生(Arachis hypogaea L.) 网斑病菌 抗性鉴定 产量损失 

分 类 号：S432.4[农业科学—植物病理学]