Pollen Morphology And Viability Analyses in Clematis terniflora DC

By : Rajeswari S., Sumitha V. R

Page No: 189-192

Abstract
Clematis terniflora a highly domesticated ornamental plant, grown mainly for its fragrance, this flowers is propagated entirely by vegetative means. Sexual reproduction is rarely observed, being either pollen sterile or seed sterile. Hence propagation is mainly through stem cuttings. The present study focuses on the palynological investigation involving pollen morphological and viability studies. The electron microscopic study revealed prolate-spheroidal pollen with tricolpate aperture. Viability studies carried out using in vitro and in vivo methods revealed lower germination rate with an estimated rate of about 78.8% pollen sterility. Cross-pollination was better compared to self-pollination. Pollen germination was not observed in self-pollinated flowers. The present study revealed limited pollination and fertilization thereby reducing its natural regeneration and population.

Authors :
Rajeswari S. : Research Scholar, Postgraduate and Research Department of Botany, Mahatma Gandhi College, Thiruvananthapuram, Kerala.
Sumitha V. R. : Assistant Professor, Department of Botany, HHMSPB NSS College for Women, Thiruvananthapuram.
 

DOI: https://doi.org/10.32381/JPSR.2021.37.01.22