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Experimental studies on pollenmediated gene flow in Sorghum bicolor (L.) Moench using malesterile bait plants

dc.contributor.authorRabbi, Ismail Y
dc.contributor.authorParzies, H.K.
dc.contributor.authorKiambi, D.
dc.contributor.authorHaussmann, B.I.G.
dc.contributor.authorFolkertsma, R.T.
dc.contributor.authorGeiger, H.H
dc.date.accessioned2019-12-04T11:14:02Z
dc.date.available2019-12-04T11:14:02Z
dc.date.issued2010
dc.identifier.citationRabbi, I.Y., Parzies, H.K., Kiambi, D., Haussmann, B.I.G., Folkertsma, R. & Geiger, H.H. (2011). Experimental studies on pollen‐mediated gene flow in sorghum bicolor (L.) moench using male‐sterile bait plants. Plant Breeding, 130(2), 217-224.
dc.identifier.issn0179-9541
dc.identifier.urihttps://hdl.handle.net/20.500.12478/2613
dc.description.abstractInformation on the potential of pollen mediated gene flow (PMGF) in sorghum is required for ensuring varietal purity and to mitigate risk transgenic gene flow. Replicated trials were conducted in Kenya using a local landrace, ‘Ochuti’ as pollen donor surrounded by male-sterile pollen baits. Frequency of PMGF decreased with the increase of distance from pollen sources and was significantly influenced by wind direction and speed. Anther dehiscence correlated with increase in vapour pressure deficit in the morning. A negative exponential regression model with logarithmic transformation of PMGF and square-root transformation of distance from source field best fitted the data. Up to 50% of female florets on a male sterile (MS) plant were pollinated at 1 m from pollen source and declined to 14% at 10 m. The maximum distance of PMGF using the PMGF model, based on a threshold of one seed per MS plant, was 203 m when data above the 95th percentile is considered. However, in the presence of self-produced pollen of male-fertile target plants, the possibility of long-distance cross-pollination may be very low.
dc.description.sponsorshipGerman Academic Exchange Service
dc.description.sponsorshipFederal Ministry for Economic Cooperation and Development, Germany
dc.format.extent217-224
dc.language.isoen
dc.subjectSorghum
dc.subjectPollen Dispersal
dc.subjectGene Flow
dc.subjectFlowering Characteristics
dc.titleExperimental studies on pollenmediated gene flow in Sorghum bicolor (L.) Moench using malesterile bait plants
dc.typeJournal Article
dc.description.versionPeer Review
cg.contributor.affiliationUniversität Hohenheim
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.contributor.affiliationInternational Crops Research Institute for the Semi-Arid Tropics
cg.contributor.affiliationDeRuiter Seeds Benelux
cg.coverage.regionAfrica
cg.coverage.regionEast Africa
cg.coverage.regionCentral Africa
cg.coverage.regionNorth America
cg.coverage.countryKenya
cg.coverage.countryUnited States
cg.isijournalISI Journal
cg.authorship.typesCGIAR and developing country institute
cg.iitasubjectGenetic Improvement
cg.iitasubjectPlant Genetic Resources
cg.iitasubjectWeeds
cg.iitasubjectPlant Health
cg.iitasubjectPlant Production
cg.iitasubjectMeteorology And Climatology
cg.journalPlant Breeding
cg.howpublishedFormally Published
cg.accessibilitystatusLimited Access
local.dspaceid93417
cg.targetaudienceScientists
cg.identifier.doihttp://dx.doi.org/10.1111/j.1439-0523.2010.01775.x


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