并就稻瘟病抗性基因的研究及利用策略进行了讨论。
The strategy for studying rice blast resistance genes and its application was discussed.
本文就以上几个方面的进展评述了水稻稻瘟病抗性的分子改良策略。
This paper summarised the research progress mentioned above and discussed the molecular strategies for rice blast resistant improvement.
通过标记辅助选择获得的改良材料为三系杂交稻恢复系的培育提供了稻瘟病抗性亲本。
The improved lines can be used as candidate parental lines for rice breeding with blast resistance.
应用主成分分析法研究了21个水稻品种对稻瘟病9个抗性组分。
The 9 resistant components to rice blast in 21 rice varieties were studied by principal component analysis.
这些结果表明JA在诱导PR基因表达和增加水稻对稻瘟病的抗性中发挥着十分重要的作用。
Our results suggest that JA plays a significant role in PR gene induction and blast resistance in rice plants.
对来自不同抗源的30个抗稻瘟病单基因系进行了小种专化抗性及田间抗性的分析和评价。
Race specific resistance and field resistance of 30 monogenic rice lines resistant to rice blast, derived from different resources were evaluated.
这些结果为进一步将子预44中的抗性基因用于水稻抗病育种及该抗稻瘟病基因的克隆奠定了重要基础。
These results provide essential information for further utilization of the blast resistance gene in Ziyu 44 in rice disease resistance breeding and positional cloning of the gene.
结果表明，不同稻区稻瘟病菌菌株对籼、粳、杂交稻的致病力存在明显差异。筛选出一批毒力频率在20%以下，抗性较好的籼、粳稻新品种（系）和杂交稻新组合。
The pathogenicity of P. grisea isolates differ from various regions, and many cultivars (lines) or combinations are highly resistant to P. grisea and their virulent frequency are not more than 20%.
结果表明，不同稻区稻瘟病菌菌株对籼、粳、杂交稻的致病力存在明显差异。筛选出一批毒力频率在20%以下，抗性较好的籼、粳稻新品种（系）和杂交稻新组合。
The pathogenicity of P. grisea isolates differ from various regions, and many cultivars (lines) or combinations are highly resistant to P. grisea and their virulent frequency are not more than 20%.
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