The Effects of Various Stands in Sacha Inchi Bean (Plukenetia volubilis) Agroforestry on Mycorrhizal Spore Density

Sacha Inchi (Plukenetia volubilis L.) bean cultivation needs to be developed considering its enormous benefits and potential. One of the ways that can be done to develop the cultivation is by utilizing mycorrhiza. Research on the exploration of the distribution of mycorrhiza in various types of land such as corn, sugar, palm, and tobacco fields has been done, but research on the distribution of mycorrhiza in Sacha Inchi bean agroforestry with various stands has never been done. This research aimed to collect data on the density of mycorrhizal spores in Sacha Inchi bean agroforestry. The methods used were survey and laboratory analysis. Samples were taken from four types of agroforestry land based on soil depth, namely 0–10 cm, 11–20 cm, and 21–30 cm and each treatment were repeated 3 times. Analysis of mycorrhizal spore density was done by using wet filtration and centrifugation techniques. The results showed there were 242 spores 100 g-1 of soil on teak and Sacha Inchi land, 77 spores 100 g-1 of soil on teak monoculture land, 126 spores 100 g-1 of soil on mixed land, and 53 spores 100 g-1 of soil on Sacha Inchi monoculture land. Based on the density of mycorrhizal spores, it is known that the spore density on Sacha Inchi planted in monoculture is the lowest compared to the Sacha Inchi planted with other plants. Mycorrhizal species that dominated in the four types of agroforestry land were Glomus and Acaulospora.