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All Journal JURNAL AGROTEKNOLOGI CERMIN: Jurnal Penelitian Journal of Comprehensive Science Jurnal Multidisiplin Indonesia
MAHMUD, YUSMAR
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Effectiveness of Some Concentrations of Rambutan Wood Liquid Smoke to Inhibit The Growth of Cercospora sp. Secara in Vitro Mahmud, Yusmar; Nuriman, Fiqi; Septirosya, Tiara
Jurnal Multidisiplin Indonesia Vol. 3 No. 9 (2024): Jurnal Multidisiplin Indonesia
Publisher : Riviera Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58344/jmi.v3i9.1819

Abstract

Cercospora sp. is a fungus that causes leaf spot disease in oil palm plants, potentially affecting productivity and harming oil palm cultivation. Long-term use of synthetic fungicides can lead to resistance, resurgence, and leave harmful residues in the environment. As an alternative solution, the utilization of liquid smoke from rambutan wood offers a cost-effective, environmentally friendly, and antifungal option to inhibit the growth of leaf spot disease. This study aims to determine the effective concentration of rambutan wood liquid smoke in inhibiting the growth of Cercospora sp. Vitro. The research was conducted from December to March 2024 at the Laboratory of Pathology, Entomology, Microbiology, and Soil Science, Faculty of Agriculture and Animal Husbandry, Sultan Syarif Kasim State Islamic University Riau. The experimental method used was a completely randomized design with six treatments (0%, 1%, 2%, 3%, 4%, and 5%), each repeated four times, resulting in 24 experimental units. Observed parameters included total phenol content analysis of liquid smoke, macroscopic observations, growth rate (cm/day), and inhibition rate (%) of Cercospora sp. The results showed a total phenol content of 1.76%. Liquid smoke from rambutan wood at a concentration of 2% was highly effective in inhibiting the growth of Cercospora sp., completely stopping the growth rate to 0 cm/day and categorizing it as a highly effective fungicide with an effectiveness percentage of 100%.
Efektivitas Asap Cair Kayu Rambutan dalam Menghambat Pertumbuhan Colletotrichum sp Secara In Vitro Mahmud, Yusmar; Sulaiman, Mulky; Ikhsan Zam, Syukria
Journal of Comprehensive Science Vol. 3 No. 10 (2024): Journal of Comprehensive Science (JCS)
Publisher : Green Publisher Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59188/jcs.v3i10.975

Abstract

Leaf blight is one of the main diseases in oil palm nurseries, as a result of the attack of the pathogen Colletotrichum sp. The initial symptoms are found on the edges of the leaves. Colletotrichum sp. is a pathogenic fungus that causes blight in oil palm, so it needs to be controlled. One of the alternative controls is by using rambutan wood liquid smoke. This study aims to obtain an effective concentration of rambutan wood liquid smoke that can inhibit the growth of Colletotrichum sp. in vitro. This research was carried out from November 2023 to January 2024 at the Laboratory of Pathology, Entomology, Microbiology and Soil Science, Faculty of Agriculture and Animal Husbandry, Sultan Syarif Kasim State Islamic University, Riau. This study used an experimental method with a complete randomized design (RAL) with 6 treatments (0%, 1%, 2%, 3%, 4% and 5%) with each treatment repeated 4 times, so that there were 24 experimental units. Observation parameters include total phenol analysis and PH test of liquid smoke, macroscopic, growth rate (cm/day) and inhibition (%) Colletotrichum sp. The results showed a total phenol content of 3.47% and a PH test. Rambutan wood liquid smoke with a concentration of 4% is very effective in inhibiting Colletotrichum sp. 100% inhibition and growth rate of 0 cm/day.
EFEKTIVITAS BIOCHAR TERHADAP KETERSEDIAAN UNSUR HARA MIKRO PADA ULTISOL Oksana, Oksana; Taslapratama, Irwan; Novia, Muhammad Ali; Mahmud, Yusmar; Septirosya, Tiara; Shofiah, Raudhatu
Jurnal Agroteknologi Vol 14, No 2 (2024): Februari 2024
Publisher : Universitas Islam Negeri Sultan Syarif Kasim Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24014/ja.v14i2.26686

Abstract

Biochar with a high organic matter composition is considered to be an ameliorant for Ultisol. Providing biochar as an ameliorant needs to be studied because it will cause an increase in micronutrients, most of which are excessive in Ultisol. This study aims to determine the effect of several levels of biochar dosage from corn cob as a base material on changes in micronutrients in Ultisol soil. This research was conducted in a greenhouse and in the Laboratory of Agrostology, Feed Industry and Soil Science, State Islamic University of Sultan Syarif Kasim Riau. Experiments with several doses of biochar as treatment, e.g., 0%, 5%, 10%, and 15% of the composition of the growing media were arranged in a Completely Randomized Design (CRD) with six replications. The parameters observed were the micronutrient content of Boron (B), Copper (Cu), Zinc (Zn), Iron (Fe) and Aluminum (Al). The experimental results showed that giving corn cob biochar with doses of 0.5%, 10% and 15% did not significantly change the levels of B, Cu and Zn Ultisol. Biochar at a dose of 10% significantly increased the soil Zn content and decreased Al-dd Ultisol solubility. 
SEVERAL SEVERAL DOSES OF LIQUID SMOKE FROM TEAK WOOD WASTE POWDER INHIBIT THE GROWTH OF GANODERMA ORBIFORME (FR.) RYVARDEN AND CURVULARIA SP. IN VITRO Mahmud, Yusmar; Syarief, M. Hafiez; Annisava, Aulia Rani
CERMIN: Jurnal Penelitian Vol 10 No 1 (2026): JANUARI - JULI
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat - Universitas Abdurachman Saleh Situbondo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36841/cermin_unars.v10i1.7972

Abstract

ABSTRAK Ganoderma orbiforme (Fr.) Ryvarden dan Curvularia sp. merupakan jamur patogen yang menyerang tanaman kelapa sawit dan menimbulkan kerugian, sehingga memerlukan pengendalian. Asap cair serbuk kayu jati mengandung senyawa fenolik yang dapat menghambat pertumbuhan jamur patogen. Penelitian ini bertujuan untuk mengetahui dosis efektif pada asap cair limbah kayu jati yang efektif dalam menghambat pertumbuhan Ganoderma orbiforme (Fr.) Ryvarden dan Curvularia sp. Penelitian ini dilaksanakan pada bulan Februari sampai bulan Maret 2025 di Laboratorian Patomologi, Entomologi, Mikrobiologi dan Ilmu Tanah, Fakultas Pertanian dan Perternakan, Universitas Islam Negeri Sultan Syarif Kasim Riau. Penelitian ini menggunakan rancangan acak lengkap dengan 4 perlakuan yaitu kontrol, 1,5%, 2%, dan 2,5%, dengan 4 kali ulangan untuk setiap jamur patogen, sehingga didapatkan 32 unit percobaan. Parameter yang diamati adalah pertumbuhan diameter jamur, laju pertumbuhan, dan indeks antijamur. Hasil penelitian ini menunjukkan bahwa pemberian asap cair serbuk kayu jati dengan konsentrasi 2,5% per cawan petri merupakan yang paling efektif dalam menghambat pertumbuhan Ganoderma orbiforme (Fr). Ryvarden dengan pertumbuhan diameter 2,04 cm, laju pertumbuhan 0,11 cm/hari, dan memiliki indeks anti jamur tertinggi yaitu 77,25%. Pemberian asap cair serbuk kayu jati dengan konsentrasi 2,5% per cawan petri juga merupakan yang paling efektif dalam menghambat pertumbuhan Curvularia sp. dengan pertumbuhan diameter 2,56 cm, laju pertumbuhan 0,14 cm/hari, dan indeks antijamur 67,75%. Kata Kunci Fenolik, Kelapa Sawit, Patogen. ABSTRACT Ganoderma orbiforme (Fr.) Ryvarden and Curvularia sp. are pathogenic fungi that attack oil palm plants and cause significant losses, thus requiring effective control measures. Liquid smoke derived from teak wood powder contains phenolic compounds that can inhibit the growth of pathogenic fungi. This study aimed to determine the most effective dosage of teak wood waste liquid smoke in inhibiting the growth of Ganoderma orbiforme (Fr.) Ryvarden and Curvularia sp. The research was conducted from February to March 2025 at the Laboratory of Plant Pathology, Entomology, Microbiology, and Soil Science, Faculty of Agriculture and Animal Science, Sultan Syarif Kasim State Islamic University Riau. A completely randomized design (CRD) was used with four treatments: control, 1,5%, 2%, and 2,5%, with four replications for each pathogen, resulting in 32 experimental units. The observed parameters were fungal colony diameter, percentage of fungal growth inhibition by liquid smoke, and antifungal index. The results of this study indicated that the application of liquid smoke derived from teak wood dust at a consentration of 2,5% per Petri dish was the most effective in inhibiting the growth of Ganoderma orbiforme (Fr). Ryvarden, showing a colony diameter growth of 2,04 cm, a growth rate 0,11 cm/day, and achieving the highest antifungal index of 56%.The application of liquid smoke derived from teak wood dust at a consentration of 2,5% per Petri dish was also the most effective in inhibiting the growth of Curvularia sp., resulting in a colony diameter growth of 2.56 cm, a growth rate 0,14 cm/day, and an antifungal index of 65%. Keyword: Pathogen, Phenolic, Oil Palm,
Co-Authors Aulia Rani Annisava Ikhsan Zam, Syukria Irwan Taslapratama Novia, Muhammad Ali Nuriman, Fiqi Oksana Oksana Septirosya, Tiara Shofiah, Raudhatu Sulaiman, Mulky Syarief, M. Hafiez