MARIA MAGDALENA KEWA KOPONG Pengarang Dr. Radempta Wea, S.Pt., MP Dosen Pembimbing 2 Dr. Bernadete B. Koten, S.Pt., MP Dosen Pembimbing 1 Dr. Melkianus D. S. Randu, S.Pt,. M.Si Penguji 1 Dr. Bernadete B. Koten, S.Pt., MP Penguji 1 Aholiab Aoetpah, S. Pt., M.Rur., Sc., Ph.D Penguji 2 Dr. Redempta Wea, S. Pt., MP Penguji 2 AHMAD FADIL Contributor

This study aims to evaluate the diversity of arbila (Phaseolus lunatus L.) seeds in Taebenu Sub-district as measured by index of species diversity, relative abundance, and dominance. The research took place from July – November 2020. The materials used were arbila seeds (toxic and non-toxic), plastic bags, label paper and envelopes. The tool used is the Camry brand digital scale with a capacity of 5 kg with a sensitivity of 1 g, a counter, tray, pencil, camera, vernier caliper with accuracy of 0,05 mm, oven 60℃ and desiccator. Collecting data using direct observation techniques in the field and collection of arbila seeds using snowball sampling technique. Samples were collected and then observed and grouped based on the physical characteristics of arbila seeds. The parameters observed were species diversity index, relative abundance index and dominance index. The results showed that there were 49 accessions in Taebenu Sub-district consisting of 27 koto aem accessions (55,10%) and 22 koto fui accessions (44,10%). Arbila species diversity index in Taebenu Sub-district was high with a value of 3,711, the relative abundance index was low with the range of values for each accession from 1,013 to 6,186% and the dominance index was low with a value of 0,029. It can be concluded that arbila in Taebenu Sub-district has a high diversity of species but the abundance of each accession is low and no particular accession dominates it. Key Words : Arbila (Phaseolus lunatus L.), Species Diversity, Relative Abundance, Dominance, Feed