海南普通野生稻稻瘟病抗性鉴定与评价  

Identification and Evaluation of Resistance to Rice Blast in Oryza rufipogon Griff.in Hainan Province

作　　者：翟李楠 唐清杰[1,2] 周世圳 周帮纪 云勇 王惠艰 韩义胜[1] 邢福能 严小微[1,2] ZHAI Linan;TANG Qingjie;ZHOU Shizhen;ZHOU Bangji;YUN Yong;WANG Huijian;HAN Yisheng;XING Funeng;YAN Xiaowei(Cereal Crops Institute,Hainan Academy of Agricultural Sciences/Key Laboratory of Crop Genetics and Breeding of Hainan Province,Haikou 571100;Sanya Institute,Hainan Academy of Agricultural Sciences,Sanya 572025)

机构地区：[1]海南省农业科学院粮食作物研究所/海南省农作物遗传育种重点实验室,海口571100 [2]海南省农业科学院三亚研究院,三亚572025

出　　处：《植物遗传资源学报》2024年第1期39-51,共13页Journal of Plant Genetic Resources

基　　金：海南省重点研发计划科技合作方向(ZDYF2020221);国家现代农业产业技术体系建设专项(CARS-01-92);海南省重点研发项目(ZDYF2022XDNY260);国家重点研发计划项目(2021YFD1200100)。

摘　　要：为了对海南普通野生稻稻瘟病叶瘟、穗颈瘟的抗性进行综合鉴定与评价,2022-2023年连续两年对来自海南省11个不同市县的2002份普通野生稻材料进行苗期叶瘟人工接种和田间自然抗病鉴定,并对995份已经抽穗的普通野生稻材料进行穗颈瘟人工接种抗性鉴定。结果表明:2002份叶瘟鉴定材料中,人工接种抗叶瘟材料为494份(占24.68%),其中免疫7份,高抗17份;田间自然状态下抗叶瘟材料1160份(占57.94%),其中免疫24份,高抗233份。995份穗颈瘟人工接种鉴定材料中,抗穗颈瘟材料506份(占50.85%),其中免疫23份,高抗136份。由结果可知,海南普通野生稻普遍抗叶瘟或穗颈瘟,这些抗性资源的生长习性大多为半直立型或倾斜型,少数为直立型或匍匐型;高抗叶瘟的材料在抽穗后也普遍抗穗颈瘟,免疫或高抗穗颈瘟的材料也普遍抗叶瘟。经过鉴定和评价,筛选出双抗叶瘟、穗颈瘟的普通野生稻材料共有128份。本研究为海南普通野生稻资源抗稻瘟病研究和育种利用提供参考。In order to comprehensively evaluate and analyze the resistance of Hainan common wild rice to leaf blast and ear neck blast,2002 accessions collected from 11 different cities/counties in Hainan province were artificially inoculated with leaf blast at the seedling stage in the field for two consecutive years in 2022 and 2023.In addition,995 accessions that had been pumped were artificially inoculated for ear neck blast resistance.494(24.68%)were identified to be resistant to leaf blast,among which 7 were immune and 17 were highly resistant.In the field,1160(57.94%)were resistant to leaf blast,of which 24 were immune and 233 were highly resistant.Out of 995 accessions that were tested for ear neck plague,506 were resistant accounting for 50.85%,among which 23 were immune and 136 were highly resistant.The results showed that common wild rice accessions in Hainan were generally resistant to leaf blast or ear neck blast.The plant architecture in most of resistant germplasms was semi-erect or inclined,and a few showed upright or creeping.Accessions with high leaf distemper resistance were generally resistant to ear neck distemper after heading,and accessions with high immune or ear neck distemper resistance were generally resistant to leaf distemper.A total of 128 common wild rice materials with resistance to both leaf blast and ear neck blast were identified and evaluated.Collectively,this study provided a reference for the academic research and breeding utilization of rice blast resistance in Hainan wild rice.

关 键 词：海南普通野生稻 稻瘟病 抗性 鉴定 分析 

分 类 号：S435.111.41[农业科学—农业昆虫与害虫防治]