Year: 2007
Type: article
Abstract: In order to develop a rice with high amount of biomass, the variation of the agronomic characters in the progenies F4 from the cross between cultivated rices, O. sativa A genome and a wild rice, O. officinalis C genome Norin 29 4n O. officinalis Koshihikari was investigated.Fourteen percent lines of the progenies showed spread plant type as well as 12 lines of the progenies showed resistance to bacterial blight pathogen as those of the wild rice.The results indicate that these line of the progenies at least carry the chromosome segment in the wild rice.Regarding agronomic characters, a large number of the progenies indicate much top dry weight and straw weight compared with those of parents or control varieties, such as Akenohoshi, Kusanohoshi and Hoshiyutaka etc.On the other hand, the size of grain in almost of the progenies was similar to those of the cultivated varieties, while some lines of the progenies showed much variation in heading date and plant type.As the result, it is suggested that there is a high possibility of getting a new rice with much biomass compared with that of the present cultivated rice from this breeding method.
Language: Japanese
Subfield: Genetics
Domain: Life Sciences
SDG: Zero hunger
Open Access status: green
OpenAlex ID: W7144485673