Identification of rice genotypes tolerant to submergence at seedling stage in Uganda

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dc.contributor.authorBildadi Mlaki, Anna
dc.contributor.authorGibson, Paul
dc.contributor.authorEdema, Richard
dc.contributor.authorHabineza, Jean Claude
dc.contributor.authorMwanje, Gerald
dc.contributor.authorLamo, Jimmy
dc.contributor.authorNuwamanya, Ephraim
dc.date.accessioned2022-02-19T07:45:41Z
dc.date.available2022-02-19T07:45:41Z
dc.date.issued2019
dc.description.abstractFloods have destroyed over 2000 acres of rice in Uganda which affected yield and caused losses to farmers. This problem is more pronounced when fields are not well leveled, and the mode of irrigation is by surface flooding. Majority of lowland rice fields in East African region are of this nature and are thus prone to yield losses. There are no submergence tolerance varieties identified in Uganda, so far. To address this problem, breeding for submergence tolerance is the most ideal and promising strategy in rice. As a first step, genotypes tolerant to submergence need to be identified which is the objective of this study. 29 rice genotypes were morphological characterized in screen house and field conditions while 34 rice genotypes were molecularly characterized. Results suggested significant differences in the performance of genotypes both in the screen house and under field conditions in which varieties Swarna, IRRI SUPA 3 and KOMBOKA showed approximately 80% and above survival rate with Swarna variety ranking first. Molecular characterization of rice genotypes revealed that, out of 34 genotypes, 30 genotypes scored presence for Sub 1A-2 allele while, four genotypes were neither Sub1A-1 nor Sub 1A- 2 alleles. None of the tested genotypes were carrying Sub 1A-1 allele.en_US
dc.identifier.citationMlaki, A. B., Gibson, P., Edema, R., Habineza, J. C., Mwanje, G., Lamo, J., & Nuwamanya, E. (2019). Identification of rice genotypes tolerant to submergence at seedling stage in Uganda. Journal of Plant Breeding and Crop Science, 11(7), 173-184. DOI: 10.5897/JPBCS2019.0827en_US
dc.identifier.other10.5897/JPBCS2019.0827
dc.identifier.urihttps://nru.uncst.go.ug/xmlui/handle/123456789/2221
dc.language.isoenen_US
dc.publisherJournal of Plant Breeding and Crop Scienceen_US
dc.subjectFlash floodsen_US
dc.subjectSubmergenceen_US
dc.subjectToleranceen_US
dc.subjectSub1en_US
dc.subjectSwarnaen_US
dc.titleIdentification of rice genotypes tolerant to submergence at seedling stage in Ugandaen_US
dc.typeArticleen_US
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