水稻抗稻瘟病研究进展与对策

稻瘟病是由稻瘟病菌引起的水稻真菌性病害。稻瘟病使水稻的主要病害之一，严重威胁着水稻生产，不但造成水稻减产10-30%，而且降低水稻品质。本文对水稻抗稻瘟病研究进展及对策进行分析和总结的基础上，提出全面防治稻瘟病的综合策略：首先选择抗稻瘟病较强的品种进行种植，其次运用水稻品种多样性防治稻瘟病技术控制稻瘟病的发生和流行，最后采用化学农药防治稻瘟病。

Study Advances and C-ountermeasures on Blast Resistance of Rice

Rice blast is a kind of epiphyte disease by Magnaporthe grisea. Rice blast is one of rice main disease, which threaten badly rice production. It not only decreased rice yield by 10-30%, but also debase quality of rice. In this thesis, analyzed in detail study advances of rice blast, summarized countermeasures of prevention and cure rice blast. On the basis of that, put forward synthetical countermeasure of prevention and cure completely rice blast. At first, plant rice variety with high rice blast resistance; then, use the mixture cultivated technology of rice diversity and rice blast control in rice; finally, adopt prevention and cure rice blast by chemical pesticide.