EKSPLORASI POTENSI EKSTRAK GULMA DAN TANAMAN PANGAN DARI PERKEBUNAN KELAPA SAWIT SEBAGAI BIOHERBISIDA

Abstract

Exploration of allelopathy derived from plants and plants is essential to get a potential source of bioherbicide. The study aims to obtain water extracts derived from weeds and plants in oil palm plantations that can potentially be bioherbicides. The extract was prepared from June to July 2024 in Arga Makmur, North Bengkulu Regency. The bioassay test was conducted from July to August 2024 in Pematang Gubernur, Muara Bangkahulu, Bengkulu City. The study used a single-factor, utterly randomized design. The treatments applied were nine: the source of water extracts from broadleaf weeds, grass, teki, and as many as two types each, as well as control. The experimental unit was a Petri dish, and the experiment was repeated five times. The petri dish bioassay method was applied in this experiment. Each petri dish was given 10 mL of water extract, and 25 mung bean seeds of the Vima 2 variety were planted and incubated for three days. The results showed that the water extracts that inhibited the germination of mung bean test plants were highest from broadleaf weeds, Chromolaena odorata and Wedelia trilobata; food crop weeds, Oryza sativa, grass weeds, Leersia hexandra, and no weeds. This research provides insight into the potential of allelopathy from weeds and food crops. Water extracts from each class of weeds and plants have the best potential as bioherbicides, except for the Cyperus sp. group.