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All Journal JURNAL AGROTEKNOLOGI Agroekoteknologi Tropika Lembab Journal of Comprehensive Science Jurnal Multidisiplin Indonesia
MAHMUD, YUSMAR
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Agriculture, Biological Sciences & Forestry Computer Science & IT Economics, Econometrics & Finance Education Electrical & Electronics Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Public Health Social Sciences Veterinary

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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. 
Inventory of Insects in Land Water Spinach Cultivation Using the Insecticide Abamectin Mahmud, Yusmar; Deyanti, Silvi; Solfan, Bakhendri; Zam, Syukria Ikhsan; Oksana, Oksana
Jurnal Agroekoteknologi Tropika Lembab Vol 9, No 1 (2026): Agroekoteknologi Tropika Lembab Volume 9 Nomor 1 Agustus 2026
Publisher : Mulawarman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/jatl.9.1.2026.27436.91-98

Abstract

Land kale in a cultivated has an obstacle, namely the presence of insects. Based on their there are beneficial and harmful insects. To deal with harmful insects, insecticides are used which contain the active ingredient abamectin which causes insect skin irritation and eliminates appetite. The aim of this research was to see the presence of insects in the use of abamectin in land kale plantings in West Sidomulyo Village. This study was conducted in May and September 2024 in West Sidomulyo Village and identification was carried out at the Pathology Laboratory, Entomology, Microbiology, and Soil Science, Faculty of Agriculture and Animal Science, Sultan Syarif Kasim State Islamic University, Riau. The samplin was by catching directly using nets and yellow traps found on land kale plants. Insects are stored in collection bottles. The research results showed that there were 3 ordo, 7 family dan 8 genera of insects. There are 4 insect pests namely Anasa sp., Gonocerus sp., Bemisia sp., and Aspidimorpha sp., there are 3 predatory insect namely Verenia sp., Menochilus sp., and Paederus sp., and there 1 migrant insect namely Musca sp. The insects found have haustelata (piercin, sucking) and mandibulata (biting, chewing) mounth types. The intensity of insect pest attack increased after the application of abamectin insecticide, allegedly due to the inappropriate application time, where the application was carried out in the morning toward noon with a fairly high temperature so that evaporation occured and the effectiveness of the insecticide was reduced.
Co-Authors Bakhendri Solfan Deyanti, Silvi Irwan Taslapratama Novia, Muhammad Ali Nuriman, Fiqi Oksana Oksana Septirosya, Tiara Shofiah, Raudhatu Sulaiman, Mulky Syukria Ikhsan Zam