About YOKOO M
About National Agriculture Research Center, Ibaraki
About OKUNO K
About National Inst. Agrobiological Resources, Ibaraki
About Japanese Journal of Breeding
About paddy rice
About linkage(genetics)
About Rice cropping
About Genetic variation
About 水稲
About 品種
About 誘発
About 突然変異
About 遺伝分析