Evaluation of Ugandan cassava germplasm for drought tolerance

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dc.contributor.authorTuryagyenda, Laban F.
dc.contributor.authorKizito, Elizabeth B.
dc.contributor.authorBaguma, Yona
dc.contributor.authorOsiru, David
dc.date.accessioned2017-12-18T13:42:44Z
dc.date.accessioned2021-12-21T09:04:46Z
dc.date.available2017-12-18T13:42:44Z
dc.date.available2021-12-21T09:04:46Z
dc.date.issued2013
dc.descriptionThis paper invested on the increased pressure on prime arable land for agriculture to meet food demand for global population has resulted in shifting agriculture to marginal areas where drought is frequenten_US
dc.description.abstractIncreased pressure on prime arable land for agriculture to meet food demand for global population has resulted in shifting agriculture to marginal areas where drought is frequent. Focusing research towards development of drought tolerant varieties is thus necessary. Replicated field trials for farmer preferred cassava genotypes were established to evaluate their morphological and yield trait responses and adaptability to moisture stress. Results showed significant (P<0.05) differences among genotypes for all the parameters evaluated. Moisture stress resulted in a decline in Harvest Index by 22.34%, Fresh Root Yield by 37.04%, Number of Roots by 19.43%, Dry matter content by 16.58%, Root starch content of 20.81%, Leaf Retention by 25.72% and Plant height by 16.62%. Results therefore, evidently showed that water stress has significant devastating effects on vegetative and yield parameters of cassava. Breeding strategies to develop drought tolerant cassava varieties to cope up with increased water scarcity and semi-arid conditions are thus paramount. Varietal variability in response to water stress reported is a cornerstone in the breeding process. Besides genetic effects were dominant indicating breeding objectives would be easily achieved. Genotypes MH96/0686, Magana, Yellow, TME 204, Nyamutukura, MH97/2961, NASE 1, NASE 2 and NASE 12 were least affected by drought and may provide gene sources for cassava improvement. Genotype x Location was significant (P<0.05) suggesting that rational distribution of genotypes to agro-ecological zones with different levels of drought stress is possible. Some genotypes had stable yield and its components suggesting that cassava can easily adapt to dry environmentsen_US
dc.identifier.citationTuryagyenda, Laban F. et al Evaluation of Ugandan cassava germplasm for drought tolerance. Vol. 5 Issue: 3 pp. 212-226 2013 International Journal of Agriculture and Crop Sciences. ISSN 2227-670Xen_US
dc.identifier.issn2227-670X
dc.identifier.urihttps://hdl.handle.net/20.500.11951/87
dc.language.isoenen_US
dc.publisherInternational Journal of Agriculture and Crop Sciencesen_US
dc.subjectTropical-maize, sugar cane and riceen_US
dc.subjectLandraces- maize, sugar cane and rice-Ugandaen_US
dc.subjectLeaf retention- maize, sugar cane and rice- Ugandaen_US
dc.subjectHarvest Index- maize, sugar cane and rice- Ugandaen_US
dc.subjectBreeding- maize, sugar cane and rice- Ugandaen_US
dc.titleEvaluation of Ugandan cassava germplasm for drought toleranceen_US
dc.typeArticleen_US
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