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对在云南省４３个县采集到的１３１１个稻瘟病菌菌株的有性世代的研究结果表明：（１）在云南省ＭＡＴ１－２的菌株数量较多，占能形成有性世代菌株数的６２．８％；普文县等１１个县市ＭＡＴ１－１和ＭＡＴ１－２两种交配型的菌株都有分布；而大理等３个县市只分离到ＭＡＴ１－１交配型，昆明市等１３个县市只分离到ＭＡＴ１－２交配型。（２）云南陆稻上分离的稻瘟病菌中，能形成有性世代的菌株比例较高；有性世代形成能较高的两性菌株也较多。（３）在部分陆稻地块，两种交配型的菌株同时存在，甚至从同一病斑上都可分离到能互相交配的两种交配型的菌株。这些结果预示出云南陆稻植株上产生有性世代的极大可能性
The results of sex generation of 1311 M. grisea strains collected from 43 counties in Yunnan Province showed that: (1) There were more strains in MAT1-2 in Yunnan Province, accounting for 62 .8%. There were two mating type strains of MAT1-1 and MAT1-2 distributed in eleven counties and cities such as Puwen County. Only 13 maternal mating type MAT1-1 and Kunming County only isolated to MAT1-2 mating type. (2) Among the M. grisea isolates isolated from Upland rice in Yunnan Province, the proportion of strains capable of forming sexual generation was high; the gender generation strains with higher sexual generation were also more. (3) In some Upland rice plots, two mating type strains exist simultaneously, and even two mating type strains that can mate with each other can be isolated from the same lesion. These results indicate the great possibility of producing sexual generation on Upland rice plants in Yunnan