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Sumatera utara
INDONESIA
JURNAL ILMU PERTANIAN
Published by Universitas Muhammadiyah Sumatera Utara
ISSN : 08521077     EISSN : 24427306     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Jurnal Ilmu Pertanian "AGRIUM" adalah publikasi ilmiah yang diterbitkan dua kali dalam setahun untuk mengkomunikasikan hasil-hasil penelitian ataupun review yang dirancang sebagai sarana komunikasi untuk para ilmuwan/peneliti yang terkait dengan bidang pertanian.
Arjuna Subject : -
Articles 346 Documents
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Invigoration of Kamba Local Rice Seeds Using Rhizobacteria Biopriming In The Test Method of Established Rolled Paper In Plastic (UKDdp) Sudewi, Sri; Saleh, Abdul Rahim; Herwati, Andi
AGRIUM: Jurnal Ilmu Pertanian Vol 29, No 1 (2026)
Publisher : UNIVERSITAS MUHAMMADIYAH SUMATERA UTARA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/agrium.v29i1.20257

Abstract

The quality of local rice seeds among farmers is low because they generally use harvested seeds from previous crops. One technique that can be done is seed invigorisation using rhizobacteria biopriming technique. The aim of this study was to determine the response of dormant Kamba local rice seeds to rhizobacterial biopriming treatment in increasing the viability and vigor seeds. The research method used a Completely Randomized Design (CRD) with treatments consisting of Control (B0), Biopriming isolate B1; B2; B3; B4; B5; B6; B7; B8; B9; B10; B11; B12; B13; B14. Each treatment was repeated three times to obtain 45 experimental units. Each experiment used 40 seeds for a total of 1800 seeds. Variable observations of seed viability and vigor were carried out with the parameters of germination (%), maximum growth potential (%), simultaneity of growth (%), vigor index (%) and T50% (days). The results showed that biopriming with rhizobacterial isolates using the Rolled Paper Established in Plastic (UKDdp) method had a significant effect on increasing viability and vigor and breaking dormancy of local Kamba rice seeds. The biopriming treatment of KLE25 isolate was effective in increasing germination rate (97.50%), maximum growth potential (99.17%), growth simultaneity (49.17%), vigor index (32.50%) and T50% (4 days) when compared to without biopriming (control).
Effectiveness of Mycorrhizal Fertilizer on Soil Quality, Growth, and Yield of Upland Rice in Ultisol Soil Mulyadi, Mulyadi; Sari, Shabilla Amartiya; Rusdan, Risna
AGRIUM: Jurnal Ilmu Pertanian Vol 29, No 1 (2026)
Publisher : UNIVERSITAS MUHAMMADIYAH SUMATERA UTARA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/agrium.v29i1.27657

Abstract

Rice production in Ultisol land is often hindered by low soil fertility, which limits the availability of nutrients and crop productivity. This research aimed to examine the effectiveness of various doses of mycorrhizal biofertilizer on improving soil quality, growth, and yield production of upland rice (Oryza sativa L.) in Ultisol soil. This experiment used mycorrhizal fertilizer (Mycogrow). The research used a Completely Randomized Design with four mycorrhizal dose treatments: M0 (control, no mycorrhiza), M1 (15 g of mycorrhiza polybag⁻¹), M2 (30 g of mycorrhiza polybag⁻¹), and M3 (45 g of mycorrhiza polybag⁻¹) with three replications, three plant samples using polybag 40 cm x 40 cm and each polybags containing 10 kg of soil for cultivating the Trisakti rice. The results showed that the application of mycorrhiza at the M3 (45 g of mycorrhiza polybag⁻¹) dose significantly improved the physical and chemical properties of the soil, such as reducing bulk density, increasing porosity, pH, soil organic matter content, and the availability of nitrogen, available phosphorous, and available potassium. During the vegetative and generative phase, the M3 (45 g of mycorrhiza polybag⁻¹) is the best treatments in increasing plant height, tiller number, flag leaf area, SPAD value, panicle number, panicle length, flowering time, and 1000-grain weight. Therefore, mycorrhiza application can be recommended as a sustainable and environmentally friendly fertilization technology.
Growth and Yield Response of Black Rice (Oryza sativa L.) to Lamtoro Leaf Liquid Organic Fertilizer and NPK Utami, Sri; Fitria, Fitria; Alwi, Mukhaddat
AGRIUM: Jurnal Ilmu Pertanian Vol 29, No 1 (2026)
Publisher : UNIVERSITAS MUHAMMADIYAH SUMATERA UTARA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/agrium.v29i1.28751

Abstract

Rice is the main source of carbohydrates, black rice is a rich source of bioactive compounds. Increasing rice yields can be done by providing organic and inorganic fertilizers. Lamtoro leaves as a liquid organic fertilizer (LOF) contain essential nutrients, as well as NPK. This study aims to evaluate the growth and yield response of black rice to liquid organic fertilizer and NPK. This study used a Randomized Block Design (RBD) with 2 factors, namely LOF of Lamtoro leaves (100 ml/plot, 200 ml/plot, and 300 ml/plot) and NPK Fertilizer (0 g/plant, 1.5 g/plant, 3 g/plant, and 4.5 g/plant). Parameters observed were plant height, chlorophyll leaf, number of tillers per hill, number of productive tillers, number of panicles, grain weight per panicle, 1000 grain weight and root volume. The data analyzed by analysis of variance (ANOVA). The research results showed that liquid organic fertilizer of lamtoro leaves had no significant effect on all parameters of black rice plants. Fertilizer NPK had significant effect on the parameters of plant height and number of tillers per hills, the number of productive tillers and the number of panicles. NPK significantly influenced growth parameters while the liquid organic fertilizer showed no significant effect.
In Vitro Antagonistic and Fungicidal Activity against Agroathelia rolfsii (syn. Sclerotium rolfsii), the Causal Pathogen of Stem Base Rot Disease in Brassica Plants Munthe, Muhammad Alwi; Novita, Aisar; Baharom, Nur Adliza
AGRIUM: Jurnal Ilmu Pertanian Vol 29, No 1 (2026)
Publisher : UNIVERSITAS MUHAMMADIYAH SUMATERA UTARA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/agrium.v29i1.28103

Abstract

Plants of the Brassica genus, such as cabbage, cauliflower, and broccoli, are high-value horticultural commodities that are susceptible to collar rot caused by the fungus Agroathelia rolfsii (syn. Sclerotium rolfsii). This soil-borne pathogen is difficult to control due to its ability to form sclerotia that can survive for long periods in the soil, thus requiring more effective and environmentally friendly alternative control strategies. This study aimed to evaluate the antagonistic activity of several Trichoderma spp. isolates and the effectiveness of two commercial fungicides, chlorothalonil and pencycuron, against A. rolfsii in vitro. The antagonism test was conducted using the double culture method, while the fungicide test used the toxic agar technique. The results of the study showed that Trichoderma sp. isolate T01 showed the highest antagonistic activity with a PGI value of 62.05%. However, this value was not significantly different from Trichoderma sp. isolate T2 (59.87%) and Trichoderma asperellum MHR1 strain (59.09%) based on the DMRT test. Meanwhile, among the fungicides tested, chlorothalonil at a concentration of 100 mg/L provided the highest inhibition of 21.98% and 10 mg/L (14.60%). These findings indicate that Trichoderma sp. isolate T01 has the potential to be used as an effective biological agent, while chlorothalonil can play a role as a supporting fungicide in the application of Integrated Pest Management (IPM) strategies. Further research is recommended to evaluate the effectiveness of both agents under greenhouse and field conditions to ensure consistency in their performance.
Respons Perkecambahan dan Pertumbuhan Bibit Tomat (Solanum lycopersicum) dalam Beberapa Media Kultur In Vitro Riansyah, M. Afdal; Sulistiani, Rini; Hisham, Nazrul
AGRIUM: Jurnal Ilmu Pertanian Vol 29, No 1 (2026)
Publisher : UNIVERSITAS MUHAMMADIYAH SUMATERA UTARA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/agrium.v29i1.29097

Abstract

Tomatoes (Solanum lycopersicum L.) are an important horticultural crop with steadily increasing demand in Indonesia, yet their productivity often fluctuates. The availability of high-quality seeds, including those produced through in vitro propagation techniques, is a key factor in producing vigorous and uniform seedlings. The study employed a factorial Complete Randomized Design with two treatments. The aimed to compare the germination and early growth responses of two tomato varieties, MicroTom and MT3, on six different culture media: Full-MS, Half-MS, Full-MS+GA₃ 0.5 mg/L, Chu’s N6, Chu’s N6+GA₃ 0.5 mg/L, and Gamborg B5. The results showed that the culture medium had a significant effect on all parameters, while the variety had a significant effect only on the average germination time and shoot length. The Half-MS, Chu’s N6, and Gamborg B5 media yielded the highest germination rates (70–72%), while Full-MS produced the lowest rate (35%). MT3 exhibited a faster germination rate (6.91 days) and longer shoot length (34.41 mm) compared to MicroTom. The longest root length was observed in the MT3 grown on Half-MS (C2M2), and the longest shoot length was observed in the MT3 grown on Gamborg B5 (C2M6). GA₃ supplementation did not always enhance vigor or early growth. The interaction between variety and medium had a significant effect, particularly on root and shoot growth. This indicates that the effectiveness of the medium depends on the genotype used. Overall, Half-MS, Chu’s N6, and Gamborg B5 are recommended as optimal media for tomato germination and early growth, particularly for the MT3.
Studi Pengaruh Konsentrasi dan Frekuensi Pemberian NAA Terhadap Pertumbuhan Tunas Stek Umbi Porang (Amorphohallus muelleri Blume) Mora, Yun Fita; Rahmawati, Nini; Siregar, Luthfi A M
AGRIUM: Jurnal Ilmu Pertanian Vol 29, No 1 (2026)
Publisher : UNIVERSITAS MUHAMMADIYAH SUMATERA UTARA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/agrium.v29i1.26270

Abstract

Increasing industrial demand for porang requires efficient propagation strategies, such as tuber cuttings combined with NAA application to enhance shoot and root development. This study aimed to evaluate the effects of NAA concentration and application frequency on the growth of porang tuber cuttings. The experiment was conducted from July to December 2024 in Pagar Merbau III Village, Lubuk Pakam District, and at the Biotechnology Laboratory, Faculty of Agriculture, University of North Sumatra, using a two-factor Randomized Block Design with three replications. The treatments consisted of four levels of NAA concentration (0, 50, 100, and 150 ppm) and two application frequencies (single application at the beginning of the nursery stage and repeated application at the beginning of the nursery stage and 7 days after sowing). Observed variables included shoot emergence percentage, plant growth, biomass, tuber weight, chlorophyll content, and stomatal density. Data were analyzed using ANOVA followed by Duncan’s Multiple Range Test at a 5% significance level. The results showed that the application of NAA at 100 ppm significantly enhanced shoot growth, plant height, fresh and dry weight, chlorophyll content, and stomatal characteristics. A single application at the early nursery stage produced optimal results in plant height, tuber weight, and chlorophyll content, while repeated application increased the number of shoots, vegetative growth, and biomass accumulation. The interaction between 100 ppm NAA and early application resulted in the best performance in leaf number at 3 weeks after planting and tuber weight.

Page 35 of 35 | Total Record : 346

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