Morphology and viability of castor bean genotypes pollen grains

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dc.creatorMaria Selma Alves Silva Diamantino
dc.creatorMaria Angélica Pereira de Carvalho Costa
dc.creatorTaliane Leila Soares
dc.creatorDaniel Vieira Morais
dc.creatorSimone Alves Silva
dc.creatorEverton Hilo de Souza
dc.date2016
dc.date.accessioned2026-07-07T03:53:20Z
dc.descriptionThe objective of this work was to characterize the morphology and viability of the pollen of15 genotypes of castor bean (Ricinus communis L.) and to generate information that can assist in the selectionof highly promising male parents for future use in genetic improvement programs aimed at producingseeds for oil extraction. Acetolysis and scanning electron microscopy was used to characterize themorphology of the pollen. The viability of the pollen grains was estimated by in vitro germination andcolorimetric analysis (acetocarmine 2% and 2, 3, 5-triphenyltetrazolium chloride 1%). For the in vitrogermination, pollen grains were grown in 10 types of solidified culture medium consisting of differentconcentrations of sucrose, boric acid, calcium nitrate, magnesium sulfate and potassium nitrate. The pollengrains had the following characteristics: medium size, isopolar and subspheroidal shape, radial symmetry,circular ambit, 3-colporate, elongated endoapertures, tectate exine and granulated sexine. The acetocarminedye overestimated pollen viability. The media M5 and M8 were the most efficient at promoting thegermination of pollen grains. The studied genotypes had high levels of viability and can therefore be usedas male parents in genetic improvement programs.
dc.formatapplication/pdf
dc.identifier1679-9275
dc.identifierhttps://www.redalyc.org/articulo.oa?id=303044042009
dc.identifierhttps://www.redalyc.org/journal/3030/303044042009/
dc.identifierhttps://www.redalyc.org/journal/3030/303044042009/html/
dc.identifierhttps://www.redalyc.org/journal/3030/303044042009/303044042009.epub
dc.identifierhttps://www.redalyc.org/journal/3030/303044042009/movil
dc.identifier.urihttp://hdl.handle.net/123456789/446245
dc.languageen
dc.publisherUniversidade Estadual de Maringá
dc.relationhttp://www.redalyc.org/revista.oa?id=3030
dc.rightsActa Scientiarum. Agronomy
dc.sourceActa Scientiarum. Agronomy (Brasil) Num.1 Vol.38
dc.subjectAgrociencias
dc.titleMorphology and viability of castor bean genotypes pollen grains
dc.typeartículo científico

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Acta Scientiarum. Agronomy - Universidade Estadual de Maringá