Model distribution of poisonous plants as conservation biopesticides sources in Batang Gadis National Park, Mandailing Natal, North Sumatera

[摘要] Poisonous plant species diversity in Indonesia have not been explored as a potential source of biopesticides. Batang Gadis National Park (BGNP) as one of the biodiversity of poisonous plants need to be explored. The study aimedwas the identification of poisonous plants, analysis of diversity, Shannon index-Wienner modeling on various heights and locations poisonous plants, and phytochemical analysis to determine the content of alkaloids, terpenes, flavonoids, saponins and tannins.The identification results obtained 14 species of poisonous plants with 10-12 species in different levels (understory, seedlings, saplings, poles, and trees).Analysis vegetation results obtained were Ayu Ara, Ayu Otang, Dongdong, and Supi which dominates all levels of plants. Modelling is obtained Model Vapor Pressure for lower plants, Sinusoidal Model fit for seedlings, saplings and poles, as well as to the Hoerl Model for Tree. The content dominant on poisonous plants in BGNP predominantly of terpene content except for Tabar-Tabar (Costus speciosus Sm.) which containing flavonoids and tannins. Potential of poisonous plants as biopesticides were species of Dong-dong (Laportea stumulans Gaud), Langge (Homalonema propinqua Ridl), Modang / Modang Londir (Persea rimosa), and Sitarak (Macaranga gigantea). While the species with the highest sources were Latong (Litsea leefeana) and Dong-dong (Laportea stumulans Gaud).

[发布机构] Department of Forestry, Faculty of Forestry, Universitas Sumatera, Utara, Medan, Indonesia^1

[效力级别] 生态环境科学

[关键词] Biopesticides;Modeling distributions;National parks;Plant species diversity;Potential sources;Shannon index;Sinusoidal model;Terpene content