Developing Lowland Rice Germplasm with Resistance to Multiple Biotic Stresses through Anther Culture in Uganda

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dc.contributor.authorLamo, Jimmy
dc.contributor.authorGyoung-rae, Cho
dc.contributor.authorIninda, Jane
dc.contributor.authorKofi Ayirebi, Dartey Paul
dc.contributor.authorEkebu, James
dc.contributor.authorEkobu, Moses
dc.contributor.authorAlibu, Simon
dc.contributor.authorOkanya, Stephen
dc.contributor.authorOloka, Bonny
dc.contributor.authorOtim, Michael
dc.contributor.authorAsea, Godfrey
dc.contributor.authorKyung-Ho, Kang
dc.date.accessioned2022-02-19T07:13:18Z
dc.date.available2022-02-19T07:13:18Z
dc.date.issued2015
dc.description.abstractThe lowland rice genotypes grown in Uganda were introduced in the 1970s. These genotypes (now landraces) are threatened by multiple biotic stresses namely; Rice Yellow Mottle Virus (RYMV) disease, Bacterial Leaf Streak(BLS). Bacterial Leaf Blight (BLB), and Rice Blast (BL). There are currently no rice lines with multiple resistance to these stresses although attempts have been made to develop them through hybridization involving cultivated, local and introduced lines and four varieties with tolerance to RYMV have been released. The use of potential resistance donor such as the traditional African cultivated rice, Oryza glaberrima, could be an alternative approach to furnish multiple resistance to the cultivated rice. The rice germplasm developed from a cross of an Oryza glaberrima from Niger Delta and Milyang23, a high-yielding Korean rice variety were evaluated for multiple resistance in Uganda as a Korea-Africa Food & Agriculture Cooperation Initiative (KAFACI)-Alliance for a Green Revolution in Africa (AGRA) joint cooperative project, “Enhancement of High Yielding Rice Germplasm in African Countries through Anther Culture Breeding”. Milyang23 was back crossed 4 times with Oryza. glaberrima and fixed through anther culture in Korea. An evaluation of 50 lines generated showed that up to 98%, 92%, 88% and 88% of the test plants showed resistance to the RYMV, BLS, BLB and BL diseases, respectively. There was no symptoms of the four diseases in 74% of the genotypes tested. The plants that showed symptoms of the three diseases had scores of not more than 3 on a 1 to 9 scale. This preliminary finding demonstrates that these generations of rice lines could help solving the current problem of susceptibility to multiple diseases.en_US
dc.identifier.citationJimmy, L., Cho, G. R., Ininda, J., Ayirebi, D. P. K., James, E., Moses, E., ... & Kang, K. H. (2015). Developing lowland rice germplasm with resistance to multiple biotic stresses through anther culture in Uganda. The Korean Society of International Agriculture, 27(4), 415-420. http://dx.doi.org/10.12719/KSIA.2015.27.4.415en_US
dc.identifier.urihttp://dx.doi.org/10.12719/KSIA.2015.27.4.415
dc.identifier.urihttps://nru.uncst.go.ug/xmlui/handle/123456789/2216
dc.language.isoenen_US
dc.publisherThe Korean Society of International Agricultureen_US
dc.subjectGermplasmen_US
dc.subjectAnther cultureen_US
dc.subjectHybridizationen_US
dc.subjectRice yellow mottle virusen_US
dc.subjectBacterial leaf sreaken_US
dc.subjectBacterial leaf blighten_US
dc.subjectRice blasten_US
dc.titleDeveloping Lowland Rice Germplasm with Resistance to Multiple Biotic Stresses through Anther Culture in Ugandaen_US
dc.typeArticleen_US
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