| 冯爱卿，杨健源，陈深，等.水稻资源对稻瘟病质量抗性及数量抗性评价[J].广东农业科学,2015,42(12):27-32 |
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水稻资源对稻瘟病质量抗性及数量抗性评价 |
| Evaluation on qualitative and quantitative resistance of rice germplasm to Magnaporthe oryzae |
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| DOI： |
| 中文关键词: 水稻资源 稻瘟病 抗病性 |
| 英文关键词: rice germplasm Magnaporthe oryzae resistance |
| 基金项目: |
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| 摘要点击次数: 1295 |
| 全文下载次数: 650 |
| 中文摘要: |
| 采用病区病圃鉴定以及室内抗谱测定方法，对来自45 个国家和地区的1 659 份水稻资源进行稻瘟病
质量抗性和数量抗性评价。结果表明，表现高抗的材料（0~1 级）有292 份，占17.6%曰抗（2 级）的材料有68 份，占4.1%曰
中抗（3 级）、中感（4~5 级）、感（6~9 级）的材料分别有208、471、620 份，分别占12.5%、28.4%、37.4%。筛选出BG1222、
BL122、BTX、IR37704-131-2-1-3-2、LEBONNET 等27 份广谱抗瘟性资源，具有较高的质量抗性水平，其抗性频率均达
90%以上。对部分重点资源进行数量抗性评价，筛选出BR27、DRAGO、IR100、QINLIUAI、SERIBU GANTANG、
YUEXIANGZHAN 等14 份数量抗性较好的材料，其中有8 份资源对入侵病菌的抵抗能力优于IR36。本研究为华南地
区抗病育种提供了重要的资源材料以及基本数据，对抗瘟新基因的挖掘以及丰富本地区的抗病资源有着重要意义。 |
| 英文摘要: |
| Based on the approaches of blast nursery in upland condition and the test of spectrum to rice blast isolates,
evaluation on the blast resistance of 1 659 rice germplasm in IRBN (international rice blast nursery) collected form 45
countries and regions was conducted. Among the tested entries, 292 entries which accounted for 17.6% showed high blast
resistance (0 and 1 disease scale), 68 entries (accounted for 4.1%) showed resistance to blast (3 disease scale), the number
of entries with intermediate resistance, intermediate susceptibility and susceptiblity were 208(with the corresponding
percentage of 12.5%), 471 (28.4%), 620 (37.4%), respectively. Among the tested entries, 27 entries including BG1222,
BL122, BTX, IR37704-131-2-1-3-2, LEBONNET and so on had good quality resistance, these resources showed broad
spectrum resistance with the resistant frequency of higher than 90%, 14 entries including BR27, DRAGO, IR100, QINLIUAI尧
SERIBU GANTANG, YUEXIANGZHAN and so on, showed good quantitative resistance, and 8 entries had higher
quantitative resistance than IR36. The results could provide important blast resistant resources for the local rice breeding
program and had a significant value for the discovery of new blast resistance genes and its application in the blast resistance
breeding. |
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