. The reproductive biology of seyen provenances of Calliandra calothyrsus selected on growth performance and morphological characteristics, was studied. Calliandra flowers open in the evening and show receptivity to pollen grains from 5.30 pm to 6.00 am. The best time for pollination was from 7.00 pm to 9.00 pm as observed in the fixed samples under the microscope and also by allowing the pollinated flowers to be developed into pods. The major pollination vector is the bat belonging to the family Megachiroptera. The bats are attracted by the high sugar percentage of the nectar and not by the nectar volume. The provenance 10/91 has a high pollination efficiency in both Yala and Maha seasons.
Publication year
1996
Authors
Rajaselvam R J; Gunasena, H.P.M.
Language
English
Keywords
provenance, trees
Geographic
Sri Lanka
