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337份外引种质对玉米丝黑穗病的抗性及评价
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引用本文:张小杰,曲洁琼,周天旺,王春明,郭 成.337份外引种质对玉米丝黑穗病的抗性及评价[J].西北农业学报,2021,30(6):901~906
DOI:10.7606/j.issn.1004-1389.2021.06.012
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作者单位
张小杰,曲洁琼,周天旺,王春明,郭 成 (1.甘肃农业大学 植物保护学院兰州 7300702.甘肃省农业科学院 植物保护研究所兰州 7300703.甘肃农业大学 农学院兰州 730070) 
基金项目:农业部作物种质资源保护项目(2019NWB030-14)。
中文摘要:采用田间人工接种法对337份外引玉米种质进行抗丝黑穗病的鉴定和评价。结果表明:在337份玉米种质中,有14份材料表现高抗(HR),33份材料表现抗病(R),39份材料表现中抗(MR),各占供鉴材料的4.2%,9.8%和11.6%。其余 251份表现感病(S)和高感(HS),共占鉴定材料数的74.5%。由此可见,供试玉米种质对丝黑穗病抗性表现存在差异,总体对丝黑穗病的抗病能力较低。分析发现,在261份美国自交系中,表现中抗及以上自交系共72份,占供试自交系的27.6%;在76个俄罗斯杂交种中,表现中抗及以上杂交种有14个,占供试杂交种的18.4%,说明美国自交系较俄罗斯杂交种的抗性资源丰富。
中文关键词:玉米  外引种质  丝黑穗病  抗性鉴定
 
Resistance of 337 Introduced Germplasms to Head Smut in Maize and Its Evaluation
Abstract:The resistance of 337 introduced maize germplasms to head smut in maize were identified and evaluated by the field artificial inoculation in Yuzhong County of Lanzhou in Gansu province. The results showed that among the 337 maize germplasms, 14 materials showed high resistance, 33 materials showed resistance, and 39 materials showed moderate resistance, accounting for 4.2 %, 9.8 % and 11.6 % of the identified materials, respectively. The rest of 251 materials showed susceptible and highly susceptible, accounting for 74.5 % of the identified materials. It can be seen that there were significant differences in the resistance performance of the maize germplasms to Sporosporium reilianum, and the overall resistance was lower. There were 72 inbred lines with moderate resistance or above, accounting for 27.6 % of the tested 261 American inbred lines. 14 hybrids showed moderate resistance or above, accounting for 18.4 % of the tested 76 Russian hybrids. The results indicated that the resistance resources of American inbred lines were more abundant than that of Russian hybrids.
keywords:Maize  Introduced germplasm  Head smut  Resistance identification
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