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Flower morphological diversity of cinnamon (Cinnamomum verum Presl) in Matara District, Sri Lanka

Rumana Azad
  • Board of Study in Agriculture, Faculty of Graduate Studies, University of Ruhuna, Matara, Sri Lanka
  • Other articles by this author:
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/ K.L. Wasantha Kumara
  • Department of Agricultural Biology, Faculty of Agriculture, University of Ruhuna, apalana, Kamburupitiya, Sri Lanka
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  • De Gruyter OnlineGoogle Scholar
/ Gamini Senanayake
  • Department of Agricultural Biology, Faculty of Agriculture, University of Ruhuna, Mapalana, Kamburupitiya, Sri Lanka
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/ R.A.A.K. Ranawaka / D.K.N.G Pushpakumara
  • Department of Crop Science, Faculty of Agriculture, University of Peradeniya, Peradeniya, Sri Lanka
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/ Sudarshanee Geekiyanage
  • Corresponding author
  • Department of Agricultural Biology, Faculty of Agriculture, University of Ruhuna, Mapalana, Kamburupitiya, Sri Lanka
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Published Online: 2018-08-22 | DOI: https://doi.org/10.1515/opag-2018-0025

Abstract

The cinnamon flowers exhibit protogynous dichogamy with 2 flower types “Type A” and “Type B” which first flowers during morning and evening respectively. This floral cycle causes a temporal barrier to the maintenance of elite breeding material and for hybridization with desired parents. Determination of variation in flower and inflorescence morphology can shed light on functional diversity in “Type A” and “Type B” flowers. In order to study these variations, a survey of cultivated cinnamon lands and wild habitats was conducted in fifteen locations in the Matara district. Peduncle length (PDL), flower length (FL), flower width (FW), and floral tube length (FTL) varied among cinnamon accessions collected. The variation in tepal shape was distinct: the two whorls of tepals of a single flower exhibited two shapes. The current investigation of differences in inflorescence, floral morphology and floral abnormalities of Cinnamomum verum provides information about their diversity, and recommends molecular analysis to further determine the genetic basis of two flower types in progynous dichogamy.

Keywords: Cinnamomum verum; diversity of floral morphology; floral abnormalities; inflorescence; protogynous dicogamy

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About the article

Received: 2018-01-05

Accepted: 2018-06-07

Published Online: 2018-08-22


Citation Information: Open Agriculture, Volume 3, Issue 1, Pages 236–244, ISSN (Online) 2391-9531, DOI: https://doi.org/10.1515/opag-2018-0025.

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© 2018 Rumana Azad, et. al, published by De Gruyter. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License. BY-NC-ND 4.0

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