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All Journal Jurnal Pendidikan Kimia Indonesia Jambura Journal of Educational Chemistry Jambura Journal of Chemistry JURNAL KIMIA SAINTEK DAN PENDIDIKAN Nian Tana Sikka: Jurnal Ilmiah Mahasiswa Damhil: Jurnal Pengabdian kepada Masyarakat Biodiversitas Journal of Biological Diversity
Opir Rumape
Universitas Negeri Gorontalo
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Education Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Social Sciences Other

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Amethyst leaf extract as pest control and fertilizer for soybean plants OPIR RUMAPE; AKRAM LA KILO; NETTY INO ISCHAK
Biodiversitas Journal of Biological Diversity Vol. 23 No. 7 (2022)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d230706

Abstract

Abstract. Rumape O, Kilo A, Ischak NI. 2022. Amethyst leaf extract as pest control and fertilizer for soybean plants. Biodiversitas 23: 3355-3363. Amethyst (Datura metel L.) is a plant that grows and develops in the Gorontalo area, and people use it as traditional medicine. This plant has a natural insecticidal activity that is not yet known by the general public. So far, the results of research on natural insecticides from amethyst have only been tested on a small scale in the laboratory, not yet applied on a large scale in the garden. The purpose of this study was to extract amethyst leaves and apply it as an inhibitor of feeding activity and insect mortality in both the laboratory and soybean gardens. Amethyst leaves were extracted in the laboratory using methanol, n-hexane, and ethyl acetate. The extracts were tested phytochemically to determine the type of secondary metabolite, before applying it. Phytochemical test showed amethyst leaves contain alkaloid, flavonoid, terpenoid, and saponin. The application treatment for the bioactivity used variations in the concentration of amethyst leaf extract of the fractions (methanol, ethyl acetate and n-hexane), namely 1.0, 2.5, 5.0, 7.5, 10%; and 0% as control. In the laboratory, the treatment was applied by contact to 5 insects Spodoptera litura instar III for each concentration treatment with 3 replications. Observation parameters were the percentage decrease in feeding activity and mortality of Spodoptera litura larvae. In the garden, the extracts with varying concentrations of the same as in the laboratory, were applied to soybeans treated with the pest Spodoptera liturain a closed container, and the other was sprayed on plants that were left exposed. The results showed that the three extracts could kill pests, but n-hexane extract was the most effective compared to ethyl acetate and methanol extracts. Amazingly, soybean plants whose yellow leaves turn green after being given the extract. This indicates that the secondary metabolites of amethyst are not only used as insecticides to control pests, but also as plant fertilizers.
Co-Authors Abas, Ramona Nintias R. Adjami, Eka Nur Fadliya AKRAM LA KILO Akram La Kilo Ampile, Nurindah Dewi Harini Astin Lukum Bidilah, Siti Aulia Christopel, Nelpiani Christopel, Nelpiani Deasy Natalia Botutihe Domu, Siti Afdianti Erni Mohamad Haris Munandar Hendri Iyabu Ibrahim, Indriyanti Ishak Isa Ishak, Candrawati Ishak, Siti Amalisa Jafar La Kilo Julhim S Tangio Julhim S. Tangio karmila karmila La Ode Aman Latif, Fransiska Lutfiani, Wiwit Malakah, Risma Mangara Sihaloho Mardjan Paputungan Masrid Pikoli Meyrin Hamzzah Moh. Fajri Langgene Mohi, Rindi Antika Najmah Najmah Najmah, Najmah Nelpiani Christopel Netty Ino Ischak Nindiyawati H Maku Nurhayana, Nurhayana Pakaya, Sitti Masita A. Pomuato, Sasmita Pou, Siti Nurhalizah Rahnan Lamusu Rindi Antika Mohi Sandi, Fadly Sri Deby R.S Dude Suchi Wulandari Dai Suleman Duengo Uge, Asna Van Gobel, Sri Indriyani Weny J.A Musa Wiwin Rewini Kunusa Yuszda K Salimi Zelita Fitri Ente Zulpianti, Zulpianti