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The influence of minisett size and time of planting on the yield of seed yam (Dioscorea Rotundata)

dc.contributor.authorAighewi, B.
dc.contributor.authorMaroya, N.
dc.contributor.authorMignouna, D.B.
dc.contributor.authorAihebhoria, D.
dc.contributor.authorBalogun, M.
dc.contributor.authorAsiedu, R.
dc.date.accessioned2020-08-13T15:11:41Z
dc.date.available2020-08-13T15:11:41Z
dc.date.issued2020-05-22
dc.identifier.citationAighewi, B., Maroya, N., Mignouna, D., Aihebhoria, D., Balogun, M. & Asiedu, R. (2020). The influence of minisett size and time of planting on the yield of seed yam (Dioscorea Rotundata). Experimental Agriculture, 56(3), 469-481.
dc.identifier.issn0014-4797
dc.identifier.urihttps://hdl.handle.net/20.500.12478/6934
dc.description.abstractIn traditional yam (Dioscorea spp.) production systems in West Africa, finding sole seed yam producers is rare and up to 30% of harvested tubers from the ware tuber crop is reserved to plant an equivalent area of the harvested crop during the next season. Many farmers typically must make a trade-off between food and seed in the use of available tubers. A study was carried out using a factorial experiment in a randomised complete block design to investigate the influence of planting different minisett sizes at different planting periods on the yield of seed yam with the aim of improving the availability of this expensive input and saving more ware tubers for food or sale. Results showed that by doubling or tripling the minisett size from 30 to 60 or 90 g, yields of seed yam increased by 61.1 and 103.3%, respectively. The 90 g minisetts had the highest values for all traits studied but had the least sett multiplication ratio. The early planted crop yielded 137% more than the late-planted crop. Significant interactions between minisett size, planting period and season were found. In 2016, although the highest yield of seed tubers was from early planted 90 g minisetts (35.6 t ha−1), the yield of early planted 30 g minisetts (23.8 t ha−1) was similar to those of 60 g planted mid-season (28.7 t ha−1) and 90 g planted late (20.0 t ha−1). To produce a high proportion of seed size tubers with less planting material, early planting of 30 g minisetts is recommended. Such practice will enhance seed tuber availability and food security by saving 1–2 t ha−1 of tubers that would have been used as seed instead of food.
dc.description.sponsorshipBill & Melinda Gates Foundation
dc.format.extent469-481
dc.language.isoen
dc.subjectPlanting Date
dc.subjectSeeds
dc.subjectYams
dc.subjectData
dc.subjectCrops
dc.subjectYields
dc.subjectFood Security
dc.subjectSets
dc.subjectDioscorea Rotundata
dc.titleThe influence of minisett size and time of planting on the yield of seed yam (Dioscorea Rotundata)
dc.typeJournal Article
cg.contributor.crpMaize
cg.contributor.crpRoots, Tubers and Bananas
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.coverage.regionAfrica
cg.coverage.regionWest Africa
cg.coverage.countryNigeria
cg.coverage.hubHeadquarters and Western Africa Hub
cg.researchthemeBiotech and Plant Breeding
cg.researchthemePlant Production and Health
cg.researchthemeSocial Science and Agribusiness
cg.identifier.bibtexciteidAIGHEWI:2020
cg.isijournalISI Journal
cg.authorship.typesCGIAR Single Centre
cg.iitasubjectAgribusiness
cg.iitasubjectAgronomy
cg.iitasubjectCrop Systems
cg.iitasubjectFarm Management
cg.iitasubjectFarming Systems
cg.iitasubjectFood Security
cg.iitasubjectPlant Breeding
cg.iitasubjectPlant Health
cg.iitasubjectPlant Production
cg.iitasubjectYam
cg.journalExperimental Agriculture
cg.notesOpen Access Article
cg.accessibilitystatusOpen Access
cg.reviewstatusPeer Review
cg.usagerightslicenseCreative Commons Attribution 4.0 (CC BY 0.0)
cg.targetaudienceScientists
cg.identifier.doihttps://dx.doi.org/10.1017/S0014479720000095
cg.iitaauthor.identifierBeatrice Aighewi: 0000-0002-9398-1674
cg.iitaauthor.identifierNorbert Maroya: 0000-0002-7079-4729
cg.iitaauthor.identifierDjana Babatima Mignouna: 0000-0002-4074-2928
cg.iitaauthor.identifierMorufat Balogun: 0000-0001-8770-5529
cg.iitaauthor.identifierRobert Asiedu: 0000-0001-8943-2376


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