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Rida Iswati
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EFEKTIVITAS DOSIS APLIKASI TRICHODERMA BREVICOMPECTUM TZ12BN2 TERHADAP PERTUMBUHAN VEGETATIF TANAMAN CABAI RAWIT (Capsicum frutescens L.) Wartabone, Soraya; Matike, Fitra Haris; Pulogu, Siska Irhamnawati; Iswati, Rida; Agriani, Seftia
Prosiding Seminar Nasional Mini Riset Mahasiswa Vol 3, No 2 (2024)
Publisher : Universitas Negeri Gorontalo

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Abstract

Cabai rawit (Capsicum frutescens L.) merupakan komoditas hortikultura penting yang sering mengalami kendala produksi akibat faktor lingkungan, organisme pengganggu tanaman (OPT), dan kesuburan tanah. Penelitian ini bertujuan untuk menguji pengaruh dosis Trichoderma brevicompactum TZ12BN2 terhadap pertumbuhan vegetatif tanaman cabai. Menggunakan Metode Rancangan Acak Lengkap (RAL) dengan empat dosis p 0 (0 g), p1 (2,5 g), p2 (5 g), dan p3 (10 g). Variabel yang diamati meliputi tinggi tanaman, jumlah daun, dan panjang akar. Hasil analisis menunjukkan bahwa perlakuan P3 (10 gr) menghasilkan pertumbuhan terbaik, dengan peningkatan signifikan pada semua variabel. Trichoderma sp. berperan penyerapan nutrisi dan perbaikan sistem perakaran, sehingga berpotensi sebagai agen hayati yang mampu meningkatkan pertumbuhan tanaman cabai.
Potensi Trichoderma sp. Indigenus Gorontalo sebagai Dekomposer Limbah Tanaman Jagung Iswati, Rida; Abadi, Abdul Latief; Aini, Luqman Qurata; Soemarno, Soemarno; Asnawi, Asnawi; Pulogu, Siska Irhamnawati; Rudin, Sofyan Sudirman
Jurnal Ilmu Pertanian Indonesia Vol. 29 No. 2 (2024): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18343/jipi.29.2.163

Abstract

Using decomposers of fungi to increase the composting process is very necessary. The research aims to determine the potential of Trichoderma sp. Gorontalo local isolate as a decomposer of maize stover. The research was carried out from November 2022‒January 2023 at the Biological Agents Laboratory, Agricultural Plant Protection Center, Gorontalo Province Agricultural Department. This research determined the ability of six isolates of Trichoderma, namely TZ11DI1 (T. asperellum), TZ21BN2 (T. breviconvenctum), TZ21BT1 (T. virens), TZ12PO1 (T. ghanence), TZ21DU1 (T. reesei), TZ21LU1 (T. dorothopsis), and control (EM4) to produce cellulase and as a maize stover decomposer. The parameters observed were the clear zone in the isolate growing media as well as the physical and chemical characteristics of the compost produced. The results showed that Trichoderma isolates produced cellulase and potential as a decomposer for maize stover, as indicated by the ability to increase NPK nutrient levels and reduce the C/N ratio of maize stover compost. Keywords: compost, decomposer, maize stover, Trichoderma
Evaluasi Efektivitas Aplikasi Kompos Trichoderma reesei (Isolat TZ31DU1) Sebagai Agen Hayati dalam Menekan Serangan Penyakit Penting pada Tanaman Jagung Sainong, Darliawan Saprin; Iswati, Rida; Nurdin, Nurdin; Solihin, Angry Pratama; Purnomo, Sutrisno Hadi; Pulogu, Siska Irhamnawati
AGROSCRIPT: Journal of Applied Agricultural Sciences Vol 7 No 1 (2025): June
Publisher : Universitas Perjuangan Tasikmalaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36423/agroscript.v7i1.2244

Abstract

Salah satu faktor rendahnya produktivitas jagung di Provinsi Gorontalo adalah serangan berbagai penyakit tanaman. Selama ini, pengendalian penyakit masih banyak bergantung pada penggunaan pestisida kimia, yang berpotensi menimbulkan dampak negatif terhadap lingkungan. Sebagai upaya alternatif, pemanfaatan kompos Trichoderma reesei dapat digunakan sebagai agen pengendali hayati penyakit tanaman. Penelitian bertujuan untuk mengevaluasi pengaruh aplikasi kompos Trichoderma reesei terhadap jenis, kejadian, dan intensitas serangan penyakit pada tanaman jagung. Penelitian dilakukan melalui pengamatan visual gejala penyakit, identifikasi mikroskopis patogen, serta analisis kejadian dan intensitas penyakit selama 12 minggu setelah tanam (MST). Empat jenis penyakit di pertanaman jagung yaitu karat daun (Puccinia sorghi), bulai (Peronosclerospora maydis), hawar daun (Helminthosporium maydis), dan bercak daun (Curvularia sp.). Hasil penelitian menunjukkan bahwa aplikasi kompos Trichoderma reesei isolat TZ31DU1 secara konsisten mampu menekan kejadian dan intensitas keempat penyakit tersebut dibandingkan dengan perlakuan kontrol. Tidak ditemukan gejala karat daun pada perlakuan TZ31DU1, sedangkan intensitas tertinggi bercak daun pada kontrol mencapai 63,33% dan hanya 46,66% pada TZ31DU1. Hal ini menunjukkan efektivitas kompos Trichoderma reesei dalam menghambat perkembangan patogen. Temuan ini menegaskan bahwa kompos Trichoderma reesei memiliki potensi tinggi sebagai agen hayati dalam sistem budidaya jagung ramah lingkungan dan berkelanjutan.
PEMANFAATAN LIMBAH PERTANIAN SEBAGAI MEDIA PERBANYAKAN Trichoderma brevicompactum UNTUK MENDUKUNG PERTUMBUHAN TANAMAN CABAI DALAM CEKAMAN BIOTIK Lamatenggo, Rezka; Isami, Delvirawati; Iswati, Rida; Pulogu, Siska Irhamnawati
Prosiding Seminar Nasional Mini Riset Mahasiswa Vol 4, No 2 (2025)
Publisher : Universitas Negeri Gorontalo

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Abstract

Penurunan produktivitas cabai di Provinsi Gorontalo dalam beberapa tahun terakhir dipengaruhi oleh serangan penyakit layu Fusarium yang disebabkan oleh Fusarium oxysporum, patogen tular tanah yang dapat menurunkan hasil hingga 50%. Pengendalian penyakit ini umumnya masih mengandalkan fungisida sintetis yang berisiko menimbulkan resistensi patogen dan dampak lingkungan. Penelitian ini bertujuan mengevaluasi potensi limbah pertanian, yaitu ekstrak kulit kopi dan kulit singkong, sebagai media perbanyakan Trichoderma brevicompactum serta efektivitasnya sebagai pemacu pertumbuhan dan pelindung benih cabai terhadap infeksi F. oxysporum. Penelitian disusun menggunakan Rancangan Acak Lengkap (RAL) dengan tujuh perlakuan dan tiga ulangan, mencakup kontrol, infeksi patogen, perlakuan fungisida, serta biopestisida berbasis ekstrak limbah pertanian.Hasil penelitian menunjukkan bahwa F. oxysporum menurunkan daya berkecambah dan indeks vigor secara signifikan, dengan nilai terendah pada perlakuan P1 (30% dan 0%). Sebaliknya, perlakuan fungisida (P2) dan biopestisida T. brevicompactum (P3–P6) mampu mempertahankan daya berkecambah tinggi (93,33–96,67%). Indeks vigor tertinggi setelah kontrol ditunjukkan oleh perlakuan ekstrak kulit singkong + F. oxysporum (P6) sebesar 93,33%, mengindikasikan adanya sinergi antara T. brevicompactum dan senyawa bioaktif kulit singkong dalam menekan patogen. Secara keseluruhan, ekstrak limbah pertanian terutama kulit singkong berpotensi sebagai media perbanyakan T. brevicompactum sekaligus sebagai biopestisida hayati ramah lingkungan untuk meningkatkan viabilitas benih cabai dan mendukung pertanian berkelanjutan.
Soil chemical Fertility for maize in Tibawa, Gorontalo, Indonesia Ferawati Bano; Zulzain Ilahude; Nurmi; Rida Iswati; Laode Muhamad Irsan
International Journal of Technology and Education Research Vol. 4 No. 01 (2026): January- March, International Journal of Technology and Education Research (IJ
Publisher : International journal of technology and education research

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63922/ijeter.v4i01.3042

Abstract

This study evaluated the chemical status of soils under maize (Zea mays L.) cultivation in Tibawa Subdistrict, Gorontalo Regency, Indonesia, to identify fertility constraints and inform site-specific management. A field survey was conducted in May 2025 at three villages (Isimu Utara, Datahu, and Iloponu). At each site, ten subsamples from the 0–20 cm plough layer were composited and analysed for soil pH (H2O and KCl), organic carbon, total nitrogen (Kjeldahl), available phosphorus (Bray I), exchangeable potassium (NH4OAc), and cation exchange capacity (CEC). Results indicated slightly acidic to neutral soils (pH 6.3 - 6.9) with moderate CEC (16.72 - 22.32 cmol(+)/kg). Organic carbon ranged from low to moderate (1.42 - 2.51%). Available P was consistently moderate (12.04–14.72 ppm), whereas exchangeable K was low across all sites (0.19 - 0.24 cmol(+)/kg). Total N varied from low in Isimu Utara (0.13%) to moderate in Datahu and Iloponu (0.24 - 0.26%). The primary limitations for maize production were low K availability and, locally, low N and organic matter. Management should prioritize organic amendments, balanced NPK fertilization based on soil testing, and periodic liming where acidification trends emerge. These findings provide a baseline for future monitoring of soil quality and developing recommendations to sustain maize yields while reducing nutrient losses under intensive management in Tibawa.
Pengendalian Penyakit Bercak Ungu (Alternaria porri) pada Bawang Merah (Allium ascalonicum L.) Menggunakan Trichoderma Asperellum dan Trichoderma Reesei Rahmi; Iswati, Rida; Musa, N; Lihawa, M; Zakaria, F
Jurnal Pertanian Vol. 17 No. 1 (2026): Jurnal Pertanian
Publisher : Universitas Djuanda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30997/jp.v17i1.24284

Abstract

Penyakit bercak ungu yang disebabkan oleh Alternaria porri merupakan salah satu faktor pembatas utama produksi bawang merah karena dapat menurunkan hasil secara signifikan. Pengendalian penyakit ini umumnya masih mengandalkan fungisida kimia yang berpotensi menimbulkan dampak negatif terhadap lingkungan dan kesehatan. Penelitian ini bertujuan untuk mengevaluasi efektivitas Trichoderma asperellum TZ11DI1 dan Trichoderma reesei TZ31DU1 sebagai agen pengendali hayati penyakit bercak ungu pada tanaman bawang merah (Allium ascalonicum L.). Penelitian dilaksanakan di Laboratorium Balai Perlindungan Tanaman Pertanian Provinsi Gorontalo dan lahan pertanian Desa Hulawa, Kecamatan Telaga, Kabupaten Gorontalo, menggunakan Rancangan Acak Lengkap (RAL) dengan lima perlakuan, yaitu kontrol negatif, kontrol positif (fungisida), T. asperellum TZ11DI1, T. reesei TZ31DU1, dan kombinasi keduanya, masing-masing diulang delapan kali. Variabel yang diamati meliputi masa inkubasi, kejadian penyakit, intensitas serangan, serta jumlah dan berat umbi. Hasil penelitian menunjukkan bahwa aplikasi Trichoderma sp. berpengaruh nyata dalam menekan penyakit bercak ungu. Perlakuan T. reesei TZ31DU1 menunjukkan efektivitas tertinggi dalam menekan masa inkubasi, kejadian penyakit, dan intensitas serangan, serta meningkatkan hasil bawang merah dengan rata-rata berat umbi 56,46 g dan jumlah umbi 18,25 per rumpun.
PENGARUH PEMBERIAN Trichoderma asperellum TZ11DI1 TERHADAP PENYAKIT LAYU FUSARIUM (Fusarium sp.) DAN PRODUKSI TANAMAN BAWANG MERAH (Allium ascalonicum L.) Talib, Nurdila; Iswati, Rida; Pulogu, Siska Irhamnawati
AGROTEK: Jurnal Ilmiah Ilmu Pertanian Vol 10, No 1 (2026): Maret
Publisher : Percetakan Umi Toaha Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33096/agrotek.v10i1.1170

Abstract

This study aims to determine the administration of Trichoderma asperellum TZ11DI1 against Fusarium wilt disease in shallot plants. This study was conducted at the Laboratory of the Agricultural Plant Protection Agency of Gorontalo Province and agricultural land in Hulawa Village, Telaga District, Gorontalo Regency, from February to May 2025. This study used a Completely Randomized Design (CRD) with negative control treatments (T0), Positive control of chemical pesticide application (T1), application of Trichoderma Asperellum TZ11DI1 5 grams (T3), application of Trichoderma Asperellum TZ11DI1 10 grams (T2), and application of Trichoderma Asperellum TZ11DI1 15 grams (T3) each repeated 8 times, so that 40 experimental units were obtained. The variables observed were the incubation period, disease incidence, attack intensity, number of bulbs, and bulb weight. Data analysis used ANOVA and a further LSD test at a significance level of 5%. The results showed that T. asperellum TZ11DI1 treatment was effective in extending the incubation period, reducing disease incidence, and reducing the intensity of Fusarium wilt disease attacks on shallot plants. A higher dose of T. asperellum TZ11DI1 15 grams) significantly reduced the attack rate and produced an average bulb weight of 56.46 g, and the number of bulbs was 18.25 per clump.
PEMANFAATAN EKSTRAK AMPAS TAHU SEBAGAI MEDIA Trichoderma brevicompactum DALAM MENEKAN Fusarium sp. DAN MENINGKATKAN PERKECAMBAHAN BENIH CABAI Amas, Aldianto S.; Iswati, Rida; Musa, Nikmah
AGROTEK: Jurnal Ilmiah Ilmu Pertanian Vol 10, No 1 (2026): Maret
Publisher : Percetakan Umi Toaha Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33096/agrotek.v10i1.1180

Abstract

Chili peppers (Capsicum annuum L.) are a commodity with high economic value and a very high consumption rate in Indonesia. The high demand is not matched by the availability of production, because chili plants are susceptible to Fusarium sp. disease. Farmers control the disease using chemical pesticides, the use of which causes negative impacts such as land degradation, death of natural enemies, and environmental pollution. A more environmentally friendly control alternative is Trichoderma sp., which is able to suppress Fusarium sp. pathogens and has the potential to increase plant growth. In this study, tofu dregs extract was used as a propagation medium for T. brevicompactum. This study aimed to examine the potential of tofu dregs extract as a propagation medium for T. brevicompactum, assess the effectiveness of the formulation in inhibiting Fusarium sp. in vitro, and evaluate its effect on chili seed germination. The research activities were carried out experimentally from April–July 2025 at the Biological Agent Laboratory of BPTPH Gorontalo Province. Observed parameters included media characteristics, growth and sporulation of T. brevicompactum, inhibition against Fusarium sp., and the formulation's ability to increase chili seed germination. Data were analyzed descriptively for the physical properties of the media, using a t test for spore density, and ANOVA followed by a 5% BNJ test for seed growth parameters. The results showed that tofu dregs extract effectively supported the growth and sporulation of T. brevicompactum. The resulting formulation effectively inhibited Fusarium sp. in vitro and increased chili seed viability in in vivo tests, with germination values equivalent to fungicide treatment. Tofu dregs extract has the potential to be a propagation medium for T. brevicompactum and its application as a biopesticide to suppress Fusarium sp. disease and stimulate chili seed germination.
Co-Authors Abdul Latief Abadi Agriani, Seftia Amas, Aldianto S. Angry Pratama Solihin Asnawi Asnawi Dama, Hasna Dewi Meliana Edi Pramono Singgih, Edi Pramono Ferawati Bano Hiasinta F. J Motulo Irsan, Laode Muhamad Isami, Delvira Isami, Delvirawati Lailatul Amna, Lailatul Lamatenggo, Reska Lamatenggo, Rezka Lihawa, M Lihawa, Mohammad Luqman Qurata Aini Matike, Fitra Haris Musa, N Nikmah Musa Nurdin . Nurmi Rahmi Rudin, Sofyan Sudirman Sainong, Darliawan Saprin Siska Irhamnawati Pulogu Soemarno Soemarno Sutrisno Hadi Purnomo Talib, Nurdila Wartabone, Soraya Zainur Rahman Hakim Zakaria, F Zulzain Ilahude