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Seed degeneration of banana planting materials: strategies for improved farmer access to healthy seed

dc.contributor.authorJacobsen, K.
dc.contributor.authorOmondi, B.A.
dc.contributor.authorAlmekinders, Conny J.M.
dc.contributor.authorÁlvarez, E.
dc.contributor.authorBlomme, Guy
dc.contributor.authorDita, M.
dc.contributor.authorIskra Caruana, M.L.
dc.contributor.authorOcimati, W.
dc.contributor.authorTinzaara, W.
dc.contributor.authorKumar, P.L.
dc.contributor.authorStaver, C.
dc.date.accessioned2019-12-04T11:26:33Z
dc.date.available2019-12-04T11:26:33Z
dc.date.issued2018-10-28
dc.identifier.citationJacobsen, K., Omondi, B.A., Almekinders, C., Alvarez, E., Blomme, G., Dita, M., ... & Staver, C. Seed degeneration of banana planting materials: strategies for improved farmer access to healthy seed. Plant Pathology, 1-66.
dc.identifier.issn0032-0862
dc.identifier.urihttps://hdl.handle.net/20.500.12478/4652
dc.description.abstractVegetatively propagated crops, suffer from yield loss and reduced stand density and longevity caused by the buildup of certain pests and pathogens between successive plantings via via infected planting material. We reviewed six seed‐borne phytosanitary problems to evaluate whether a seed degeneration framework is a useful tool to identify approaches to achieve healthier planting materials. Phytoparasitic nematodes and weevils generate gradual declines in yields and in sucker health. Fusarium wilt and Banana Bunchy top Virus cause progressive mat collapse across the field. Asymptomatic suckers from any mat in infested fields represent a risk to transmit the disease to a new field. Xanthomonas and Ralstonia wilts, due to incomplete systemicity, are intermediate in their threat to yield loss and frequency of transmission in suckers. Losses to banana streak virus are triggered by abiotic stress, although sucker transmission of episomal BSV also contributes. Our qualitative equation for seed degeneration covers a cycle beginning with the quality and risk factors of the planting material used to plant a new field and ends with the quality and risk factors of the suckers extracted from the field to plant a new field. Our review of five planting material multiplication methods commonly used in banana contrasts their differing usefulness to address seed degeneration in the small farm context. We propose that initiatives to offset banana seed degeneration should integrate the role of off‐farm actors into decentralized initiatives rather than attempt to duplicate national seed certification frameworks from other true seed or vegetatively propagated crops.
dc.format.extent1-66
dc.language.isoen
dc.rightsOther
dc.subjectSuckers
dc.subjectSeed
dc.subjectHealth
dc.subjectInfection
dc.subjectPropagation
dc.titleSeed degeneration of banana planting materials: strategies for improved farmer access to healthy seed
dc.typeJournal Article
dc.description.versionPeer Review
cg.contributor.crpMaize
cg.contributor.crpRoots, Tubers and Bananas
cg.contributor.affiliationRoyal Museum for Central Africa, Belgium
cg.contributor.affiliationBioversity International
cg.contributor.affiliationWageningen University and Research Centre
cg.contributor.affiliationInternational Center for Tropical Agriculture
cg.contributor.affiliationBrazilian Agricultural Research Corporation
cg.contributor.affiliationAgricultural Research Centre for International Development
cg.creator.identifierP. Lava Kumar: 0000-0003-4388-6510
cg.researchthemePLANT PRODUCTION & HEALTH
cg.isijournalISI Journal
cg.authorship.typesCGIAR and advanced research institute
cg.iitasubjectPlant Health
cg.iitasubjectPlant Production
cg.journalPlant Pathology
cg.howpublishedFormally Published
cg.accessibilitystatusLimited Access
local.dspaceid101422
cg.targetaudienceScientists
cg.identifier.doihttps://dx.doi.org/10.1111/ppa.12958


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