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

Vista sencilla de ítem
dc.creatorRabbi, Ismail Y.
dc.creatorParzies, H.K.
dc.creatorKiambi, D.
dc.creatorHaussmann, B.I.G.
dc.creatorFolkertsma, R.T.
dc.creatorGeiger, H.H
dc.date2011-04
dc.date2018-01-16T12:03:35Z
dc.date2018-01-16T12:03:35Z
dc.date.accessioned2026-06-27T15:54:26Z
dc.descriptionInformation 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.identifierhttps://hdl.handle.net/10568/90342
dc.identifier.urihttp://hdl.handle.net/123456789/117045
dc.languageen
dc.publisherWiley
dc.rightsLimited Access
dc.sourceRabbi, 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.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

Archivos

Colecciones

Instituto Internacional de Agricultura Tropical (IITA)