Effective pollination of greenhouse Galia melon by stingless bee species

Increasing demand for pollination services highlights the need for research on alternative pollinators for greenhouse and open field food crops. Researchers compared the foraging behavior and effectiveness of seven endemic African Meliponinae (Meliponula bocandei, Dactylurina schmidti, Plebeina hildebrandti, Meliponula lendliana, Hypotrigona gribodoi, Meliponula ferruginea, Meliponula togoensis) as alternative pollinators to honey bees of greenhouse cultivated Cantaloupe melons. It was observed that honey bees started foraging sooner after introduction in the greenhouse (av. 4 days) than the stingless bee species (8 to 16 days).

Stingless bees were mainly harvesting nectar (ca. 2/3 of all flower visits) and M. ferruginea, M. togoensis, H. gribodoi and P. hildebrandti spent more time collecting nectar than other stingless bee species. Fruit maturation was significantly faster when flowers were pollinated by stingless bees compared to honey bees, with the shortest fruit maturation time found when flowers were pollinated by M. bocandei and H. gribodoi.

All treatments resulted in fruits of similar roundness and ellipsoid ratios. The highest fruit weight and fruit volume were obtained from flowers pollinated by either manual pollination, H. gribodoi, M. bocandei, M. lendliana and P. hildebrandti compared to honey bees. Correspondingly, pollination by the latter 5 species resulted in the highest seed counts per fruit, although these differences did not affect seed weight or volume. Altogether, the results indicate that stingless bees such as H. gribodoi, M. bocandei, M. lendliana and P. hildebrandti are more efficient pollinators of sweet melon than A. m. scutellata and can be recommended for use in greenhouse crops.

Read the complete research at www.researchgate.net.

Nkoba, Kiatoko & Pozo, María & Oystaeyen, Annette & Langevelde, Frank & Wäckers, Felix & Raina, Suresh & Hundt, Baerbel & Jaramillo, Juliana. (2022). Effective pollination of greenhouse Galia musk melon Cucumis melo L var reticulatus ser by afrotropical stingless bee species. Journal of Apicultural Research. 10.1080/00218839.2021.2021641. 


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