农学学报2023，Vol.13Issue(11)：23-28,6.
西南糯红高粱抗炭疽病资源筛选及病情危害研究
Screening of Anthracnose-resistant Resources and Study on Anthracnose Damage in Southwest Glutinous Red Sorghum
摘要
Abstract
To determine the relationship between the degree of anthracnose and damage,and to screen the germplasm resources of resistance to anthracnose of southwest glutinous red sorghum,so as to lay a material foundation for breeding resistance to anthracnose.Field spray inoculation was carried out by artificially cultured dominant strain ZG-FS-1 with strong virulence.After inoculation,the resistance level was determined according to disease classification standard.Compared with the uninoculated group,the loss rate of seed weight and germination were obtained.Among the 92 sorghum resources,10 were highly resistant(HR),10 were resistant(R),5 were moderately resistant(MR),20 were susceptible(S)and 47 were highly susceptible(HS).The average loss rate of spike grain weight of HR,R,MR,S and HS resources were 4.37%,6.69%,8.89%,34.12% and 52.50%,respectively.The average loss rate of 1000-seed weight were 1.81%,2.98%,5.59%,14.56%,28.89%,and the average loss rate of germination rate were 0.97%,5.40%,5.76%,11.11%,20.46%,respectively.Sorghum anthracnose can not only greatly reduce the yield of sorghum,but also reduce the germination rate of sorghum seeds.The resistance to sorghum anthracnose could be accurately identified by artificial inoculation and the selected resistant resources could be used as breeding materials for resistance genetic improvement.关键词
高粱/炭疽病/抗性鉴定/穗粒重/千粒重/发芽率Key words
Sorghum/anthracnose/resistance identification/spike grain weight/1000-seeds weight/germination rate分类
农业科技引用本文复制引用
应恒,张继伟,殷勇,张林,张德银,周俊辉..西南糯红高粱抗炭疽病资源筛选及病情危害研究[J].农学学报,2023,13(11):23-28,6.基金项目
四川省科技厅项目"突破性酿酒高粱育种材料和方法创新及新品种选育"(2021YFYZ0017) （2021YFYZ0017）
"高粱NLR家族抗病基因挖掘与利用"(2021YJ0485) （2021YJ0485）
西南作物基因资源发掘与利用国家重点实验室开放课题"优质抗病高粱三系种质材料创制"(SKL-KF202209). （SKL-KF202209）
