Quantification of bee forage value of selected tree species of Kodagu district, Karnataka, India
CN Nidhi, Dr. RN Kencharaddi, Dr. L Hanumantharaya, Ananthakrishna KS and Dr. GN Hosagoudar
The bee forage valuewas estimated in Cinnamomum zeylanicum, Perseaamericana, Millettia pinnata, Gliricidiasepium, and Santalum album in Kodagu during 2019- 20. The techniques of the capillary tube, nectar washing and crop capacity were used for nectar estimation. Pollen production was estimated by relating the number of flowers visited by a forager per trip and the mean weight of pollen carried by them. A significantly highest (3µl) and lowest (0.52 µl) volume of nectar per flower was produced in S. album and C. zeylanicum, respectively. The nectar volumes in S. album (45,975 µl) enticed 1688 nectar foragers while P. americana (2042.25 µl) sufficed 75 nectar foragers. The amount of pollen per flower (3.92 mg) and per tree (20,254.6mg) was significantly highest in G. sepium. Cinnamomumzeylanicum produced lowest quantity of pollen per flower (0.33 mg) and per tree (6718.9 mg) basis it was in P. americana.
CN Nidhi, Dr. RN Kencharaddi, Dr. L Hanumantharaya, Ananthakrishna KS, Dr. GN Hosagoudar. Quantification of bee forage value of selected tree species of Kodagu district, Karnataka, India. J Entomol Zool Stud 2020;8(5):1736-1741.