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Sporadic flowering of Bambusa striata Lodd. ex Lindl. an ornamental sympodial bamboo in Kottayam Distirct, Kerala, India

Author Affiliations

  • 1College of Forestry, Kerala Agricultural University, Thrissur, Kerala, INDIA – 680656
  • 2 Kerala Forest ResearchInstitute, Peechi, Thrissur, Kerala, INDIA– 680656

Int. Res. J. Biological Sci., Volume 3, Issue (12), Pages 37-41, December,10 (2014)

Abstract

Bambusa striata Lodd. Ex Lindl. is a woody ornamental sympodial bamboo species usually found in cultivation initiated flowering during 2007 in a homestead near Thiruvalla in Kottayam district of Kerala. Other than the reports of flowering, studies on detailed reproductive biology of this bamboo species is lacking. The present investigation was carried out to study the floral morphometry, anthesis, mode of pollination, in vitro and in vivo pollen viability and pollen germination and post-flowering behaviour of the species. The inflorescence was a large leafy panicle of flat spikes clustered at the nodes. The spikelets were several in the verticals in the axil of bracts. The flowers were dichogamous, protogynous and open. Stigma matured prior to anther dehiscence and 5 lobes were present. Pollens were numerous and monoporate. Highly sterile pollens were observed and viability and in vitro pollen germination also was absent. Pollination was anemophilous. Seed production was absent in this species following the flowering.

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