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All Journal JURNAL AGROHITA Akta Agrosia
Arifal, Fahkrul
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Agriculture, Biological Sciences & Forestry Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Industrial & Manufacturing Engineering Other

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UJI KEMAMPUAN KULTUR FILTRAT PGPB SECARA IN VITRO TERHADAP MORTALITAS DAN PENETASAN TELUR NEMATODA Meloidogyne spp Arifal, Fahkrul; Yanti, Yulmira; Sulyanti, Eri; Harni, Rita
Jurnal AGROHITA: Jurnal Agroteknologi Fakultas Pertanian Universitas Muhammadiyah Tapanuli Selatan Vol 9, No 4 (2024): Jurnal Agrohita
Publisher : Fakultas Pertanian Universitas Muhammadiyah Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31604/jap.v9i4.19459

Abstract

Nematoda Meloidogyne spp merupakan patogen penyebab penyakit bengkak akar pada tanaman tomat. Alternatif pengendalian penyakit puru akar adalah dengan memanfaatkan kultur filtrat PGPB. Penelitian ini bertujuan untuk mengkaji pengaruh kultur filtra PGPB terhadap mortalitas telur dan penetasan Meloidogyne spp. secara in vitro. Penelitian secara ekperimentas yang terdiri dari 11 perlakuan yaitu Bacillus thuringiensis strain MRSNRZ.3.1, B. subtilis strain MRTDUMBE.3.2.1, B. mycoides strain MRSNUMBE.2.2, B. waihenstephanensis strain RBTLL.3.2, B. cereus strain MRPLUMBE.1.3, Bacillus sp strain MRSPRZ.1.1, Pseudomonas hibiscicola strain MRTLDRZ .2.2, Achromobakter insolitus strain MRBPUMBE.1.3, kontrol air, kontrol NB dan Kontrol Pestisida. Parameter yang diamati adalah mortalitas dan penetasan telur nematoda Meloidogyne spp. Hasil penelitian menunjukkan perlakuan kultur filtrat Bacillus mycoides strain MRSNUMBE.2.2 merupakan perlakuan terbaik dengan tingkat kematian sebesar 98,67% dalam 24 jam dan dengan persentase penetasan telur hanya 10,00%. Kultur filtrat Bacillus subtilis strain MRTDUMBE.3.2.1 juga mencatat hasil yang baik dengan tingkat kematian sebesar 96% dan persentase penetasan telur sebesar 11,33%.
Effect of PGPB Secondary Metabolites in Inducing Systemic Resistance (ISR) and Enhancing Peroxidase Activity in Tomato Plants against Meloidogyne spp. Nematode Attack Arifal, Fahkrul; Yanti, Yulmira; Sulyanti, Eri; Harni, Rita
Akta Agrosia Vol 28 No 2 (2025):
Publisher : Badan Penerbitan Fakultas Pertanian (BPFP), Fakultas Pertanian, Universitas Bengkkulu

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Abstract

Meloidogyne spp. nematode is important pathogen of tomato plants that causes a characteristic symptom, namely root knot. One alternative to controlling Meloidogyne nematodes is by utilizing PGPB secondary metabolites. The objective of this research is to explore the potential of secondary metabolites produced by PGPB in inducing systemic resistance (ISR) and increasing peroxidase enzyme activity in tomato plants attacked by Meloidogyne spp. This study used a completely randomized design (CRD), consisting of 11 treatments, 3 replicates. The observation parameters included Induced Systemic Resistance (ISR) Potential Test and peroxidase activity (PO) analysis. The results showed that the secondary metabolites from the Bacillus mycoides (MRSNUMBE.2.2) treatment were the best treatment in the ISR observation, which was indicated by the lowest nematode penetration rate, which was 3.66 nematodes in plant root tissue. In the observation of peroxidase activity, secondary metabolites from Bacillus waihenstephanensis (RBTLL.3.2) showed the highest peroxidase enzyme activity, which was 0.0437 µg/ml on day 7 and 0.0500 µg/ml on day 14. Keywords: induce systemic resistance, Meloidogyne spp., peroxsidase, secondary metabolites    
Co-Authors RITA HARNI Sulyanti, Eri Yulmira Yanti