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Performance of cassava brown streak disease-tolerant varieties in Zanzibar, Tanzania

dc.contributor.authorKanju, E.
dc.contributor.authorUzokwe, V.N.E.
dc.contributor.authorSaleh, H.
dc.contributor.authorMohamed, S.
dc.contributor.authorMasumba, E.
dc.contributor.authorTumwegamire, S.
dc.contributor.authorMtunda, K.
dc.date.accessioned2019-12-04T11:14:17Z
dc.date.available2019-12-04T11:14:17Z
dc.date.issued2017-12
dc.identifier.citationKanju, E., Uzokwe, V.N.E., Saleh, H., Mohamed, S., Masumba, E., Tumwegamire, S. & Mtunda, K. (2017). Performance of cassava brown streak disease-tolerant varieties in Zanzibar, Tanzania. Indian Journal of Horticulture, 74(4), 557-561.
dc.identifier.issn0972-8538
dc.identifier.urihttps://hdl.handle.net/20.500.12478/2714
dc.description.abstractCassava is an important staple food in subtropical regions; however, its production is adversely affected by cassava brown streak disease and poor soil fertility. Five improved and two local cassava varieties were evaluated for three seasons across two sites in Kizimbani, Zanzibar. Highly significant differences were detected among varieties, sites and years for fresh shoot yield, and fresh root yield. For cassava brown streak disease associated root necrosis, highly significant differences were detected only between varieties but not sites or years. On average, the site that had a slightly higher soil nitrogen level recorded ~126% higher fresh root yield. Two improved varieties, ‘Kizimbani’ and ‘Machui’, produced significantly higher fresh root yields than the best local variety, ‘Mwari’. However, the local variety ‘Boma’ is preferred by farmers in Zanzibar because it has better fresh consumption qualities than ‘Mwari’. ‘Boma’ is highly susceptible to cassava brown streak disease and produces a poor yield. The four released varieties, ‘Kama’, ‘Kizimbani’, ‘Mahonda’ and ‘Machui’ were superior to ‘Boma’ in cassava brown streak disease resistance and yield. Further, soil fertility improvement and production system intensification are needed to enhance productivity.
dc.format.extent557-561
dc.language.isoen
dc.subjectCassava
dc.subjectSoil Fertility
dc.subjectDiseases
dc.subjectFresh Root Yields
dc.subjectCassava Brown Streak Disease
dc.titlePerformance of cassava brown streak disease-tolerant varieties in Zanzibar, Tanzania
dc.typeJournal Article
dc.description.versionPeer Review
cg.contributor.crpAgriculture for Nutrition and Health
cg.contributor.crpRoots, Tubers and Bananas
cg.contributor.affiliationAgricultural Research Institute, Tanzania
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.coverage.regionAfrica
cg.coverage.regionEast Africa
cg.coverage.countryTanzania
cg.creator.identifierEdward Kanju: 0000-0002-0413-1302
cg.creator.identifierVeronica N.E Uzokwe: 0000-0002-5563-9210
cg.creator.identifierSilver Tumwegamire: 0000-0003-2820-6337
cg.researchthemePLANT PRODUCTION & HEALTH
cg.isijournalISI Journal
cg.authorship.typesCGIAR and developing country institute
cg.iitasubjectCassava
cg.iitasubjectDisease Control
cg.iitasubjectPlant Diseases
cg.iitasubjectPlant Health
cg.iitasubjectPlant Production
cg.journalIndian Journal of Horticulture
cg.howpublishedFormally Published
cg.accessibilitystatusLimited Access
local.dspaceid93661
cg.targetaudienceScientists
cg.identifier.doihttp://dx.doi.org/10.5958/0974-0112.2017.00107.4


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