Effect of Land Altitude on Pollen Diameter Xylocopa spp. in Central Sulawesi, Indonesia

Pollen is used by bees as a source of protein to support life and increase bee productivity. The sizes and types of pollen carried by bees vary greatly. Plants originating from the highlands are likely to produce pollen diameters that are different from those from the lowlands. It is necessary to measure the diameter of pollen that honey bees feed from different plant types to find out the food source that bees prefer. This research aims to determine the effect of height on the diameter of pollen from various types of plants carried by honey bees to increase production. The research method used in this research is field experimental. The research design used a completely randomized design (CRD) linear model with 3 altitude treatments, namely height 0-100 masl (P1), height 400-499 masl (P2) and height 800-899 masl (P3). The research results show that altitude has a very real influence (P