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Pebra Heriansyah
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Faculty of Agricultural Sciences, Islamic University of Kuantan Singingi Campus Kebun Nenas, Jake Jl. Gatot Subroto KM. 7. Kebun Nenas Jake, Kuantan Singingi, Riau Indonesia 29566
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INDONESIA
Jurnal Agronomi Tanaman Tropika (JUATIKA)
Published by Universitas Islam Kuantan Singingi
ISSN : 2684785X     EISSN : 26561727     DOI : https://doi.org/10.36378/juatika.v7i1
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Jurnal Agronomi Tanaman Tropika (JUATIKA) contains original articles of research, review article/literature review in Agronomy, Plant Protection, and Soil Science
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Agronomi dan Ilmu Tanaman
Articles 158 Documents
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Optimizing Oil Palm (Elais guinensis L.) Carbon Management in Tidal Lands to Support Sustainable Plantations Ismail, Ismail; Wahyudin, Cecep; Haryono, Triyo
JURNAL AGRONOMI TANAMAN TROPIKA (JUATIKA) Vol. 7 No. 3 (2025): Jurnal Agronomi Tanaman Tropika (JUATIKA) Vol. 7 No. 3 September 2025
Publisher : LPPM UNIVERSITAS ISLAM KUANTAN SINGINGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36378/juatika.v7i3.4871

Abstract

Oil palm plantations in tidal areas face complex challenges in optimizing carbon management to achieve sustainable production. This study aims to analyze the dynamics of carbon stocks across various management systems of oil palm plantations in tidal zones and to develop optimization strategies for sustainable production. The research was conducted in Menten Village, Rambutan District, Musi Banyuasin Regency, South Sumatra, employing a factorial Randomized Complete Block Design with factors including water management systems (conventional, semi-intensive, conservation, optimization) and plant age categories (3–5, 6–10, 11–15, 16–20, and 21–25 years). CO₂ emissions and sequestration were measured using the LI-COR LI-8100A system; biomass was assessed through allometric equations and destructive sampling methods, while soil and water parameters were analyzed using standard procedures. The results demonstrated that the optimized system incorporating smart drainage achieved the best performance, exhibiting the lowest CO₂ emissions (6.2 Mg C/ha/year), the highest carbon absorption (21.5 Mg C/ha/year), and a positive net carbon balance (+15.3 Mg C/ha/year) with an efficiency of 346.8%. This system also increased fresh fruit bunch (FFB) productivity from 18.5 tons/ha/year under conventional management to 26.4 tons/ha/year, with superior quality metrics (oil content: 27.2%, acid value: 1.4%, crude palm oil yield: 25.2%). Total carbon stock progressively increased from 23.7 Mg C/ha in young plants to 147.9 Mg C/ha in mature plants, with an optimal sequestration rate of 17.8 Mg C/ha/year. The implementation of smart drainage, combined with IoT technology and biochar application, effectively optimized edaphic conditions by increasing soil pH to 4.8, raising organic carbon content to 4.2%, reducing bulk density to 0.68 g/cm³, and controlling salinity at 1.2 dS/m. This study confirms that oil palm plantations on tidal lands can achieve sustainability through precision agriculture practices that integrate precision water management, biochar application, and real-time monitoring to optimize the balance between productivity and carbon conservation.
Analysis and Identification of Weeds in 3-Month-Old Acacia crassicarpa Stands at PT. Arara Abadi Rasau Kuning District Lestari, Ika; Ervayenri; Arnaldo , Putra; Ikhsani, Hanifah; Sadjati, Emy
JURNAL AGRONOMI TANAMAN TROPIKA (JUATIKA) Vol. 7 No. 2 (2025): Vol. 7 No. 2 Mei (2025): Jurnal Agronomi Tanaman Tropika (JUATIKA)
Publisher : LPPM UNIVERSITAS ISLAM KUANTAN SINGINGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36378/juatika.v7i2.4038

Abstract

Acacia crassicarpa is a cultivated species in the Industrial Plantation Forest at PT. Arara Abadi, particularly in the Rasau Kuning District. One of the limiting factors for the growth of Acacia crassicarpa stands is weed infestations. At three months of age, weed infestations increased and became uniform across the Acacia crassicarpa stand area. To ensure that weed control measures yield effective and efficient results, it is essential to base these measures on information regarding the types and composition of weeds in the Acacia crassicarpa area. Therefore, this study aimed to analyze and identify the types of weeds found beneath the Acacia crassicarpa, which is three months old. This research method employs purposive sampling to select locations with dense weed populations for use as study plots. The analysis and identification of the weeds revealed nine species, including Goletrak (Borreria alata), which was the most prevalent, with 50 individuals recorded. Other species identified include Bundung (Cyperus odoratus), Wild Acacia, Ruas-ruas, Ramiding (Stenochlaena palustris), Sword Fern (Nephrolepis biserrata), Alang-alang (Imperata cylindrica), and Meniran (Phyllanthus urinaria). The range of the KR values was between 0.5% and 25.3%, while the FR values ranged from 2.4% to 14.6%. The BKR values varied from 0.3% to 18.8%, and the INV values ranged from 3.5% to 56.0%. The highest SDR value for Borreria alata was 18.7%, indicating significant dominance within the weed community. The Shannon-Wiener diversity index (H') was calculated at 1.96, categorizing it as a moderate level of diversity. Simpson's dominance index (D) was measured at 0.15, suggesting a stable level of weed dominance. Additionally, the Margalef species richness analysis (R1) results yielded a value of 1.51, indicating a low level of species richness among the weeds.
The Seed Weight Patterns During Imbibition and Germination Morpho-physiology of Four Maize (Zea mays L.) Seed Varieties: Imbibition Pattern and Morpho-physiological of Maize (Zea mays L.) Seed Germination Suwarno, Punjung Medaraji; Rustam, Evayusvita; Qadir, Abdul; Suwarto; Rosyad, Astryani
JURNAL AGRONOMI TANAMAN TROPIKA (JUATIKA) Vol. 7 No. 3 (2025): Jurnal Agronomi Tanaman Tropika (JUATIKA) Vol. 7 No. 3 September 2025
Publisher : LPPM UNIVERSITAS ISLAM KUANTAN SINGINGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36378/juatika.v7i3.4937

Abstract

Suboptimal environmental conditions cause low imbibition rate in maize plants, thus disrupting enzyme activation and food availability for the sprouts, and inhibiting the germination process. This study aims to provide a better understanding of the imbibition pattern and physiological characteristics of germination, hopefully obtaining useful information in the development of seed processing techniques and more efficient agricultural technology. The maize seeds used in this study were the seeds of four maize varieties. The imbibition pattern was obtained by weighing the seeds from 0 to 120 hours with a 6-hour time interval. The results showed that the four varieties showed a typical three-phase imbibition pattern with almost the same time. Overall, the highest seed growth and germination was found in Jantan F1 and Paramita, which have great potential for use in seed propagation, while Baruna variety showed low seed quality and needs further evaluation for improvement.
Analysis of Genetic Variation of Ganoderma sp. as an Initial Step in Controlling Palm oil Basal Stem Rot Disease Himawan, Achmad
JURNAL AGRONOMI TANAMAN TROPIKA (JUATIKA) Vol. 7 No. 3 (2025): Jurnal Agronomi Tanaman Tropika (JUATIKA) Vol. 7 No. 3 September 2025
Publisher : LPPM UNIVERSITAS ISLAM KUANTAN SINGINGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36378/juatika.v7i3.4940

Abstract

Basal stem rot (BSR) disease caused by Ganoderma spp., particularly Ganoderma boninense, represents a major threat to the sustainability of Indonesia's oil palm industry, resulting in productivity losses of 50-80%. High genetic variation among pathogens constitutes a primary obstacle in developing effective control strategies. This study aimed to analyze the genetic variation in Ganoderma as a preliminary step toward controlling basal stem rot in oil palm using ITS region DNA sequencing with ITS1 and ITS4 primers. Three Ganoderma sp. isolates were used: code 1 from the Biotechnology Laboratory of Lampung University, code 2 from the Plant Pest and Disease Laboratory of Gadjah Mada University, and code 3 from an online store. DNA extraction was performed using the TIANGEN Plant Genomic DNA Kit; PCR amplification with ITS1-ITS4 primers; and the PCR products were sequenced and analyzed using BioEdit and NCBI BLAST. Results showed that isolates code 1 and code 2 were identified as Ganoderma boninense, while isolate code 3 was contaminated with Fusarium sp. Alignment analysis using BioEdit confirmed extremely high genetic variation between the two G. boninense isolates with extensive nucleotide polymorphisms. This significant intraspecific diversity indicates the complexity of basal stem rot pathogen populations and emphasizes the importance of molecular approaches for accurate characterization. These findings provide a scientific foundation for developing more effective and adaptive control strategies and support oil palm resistance breeding programs based on representative pathogen genetic characteristics.
Persistence and Breaking Dormancy of Sintanur Variety Rice Seed Wijaya, Aldi Kamal; Andari, Yoni; Setyono; Suwarno, Punjung Medaraji; Diaguna, Ridwan
JURNAL AGRONOMI TANAMAN TROPIKA (JUATIKA) Vol. 7 No. 3 (2025): Jurnal Agronomi Tanaman Tropika (JUATIKA) Vol. 7 No. 3 September 2025
Publisher : LPPM UNIVERSITAS ISLAM KUANTAN SINGINGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36378/juatika.v7i3.4953

Abstract

Research on breaking seed dormancy in rice is essential for understanding dormancy-breaking methods and their persistence, as dormancy behavior varies among rice varieties. This study aimed to examine the persistence of dormancy and effective dormancy-breaking methods in Oryza sativa L. cv. Sintanur. The research used two seed lots of the Sintanur variety—new and old lots—arranged in a split-plot design with two factors: dormancy-breaking treatments (control, 24-hour hydration, 48-hour hydration, KNO₃ solution, and GA₃) and storage periods (0, 1, 2, 3, and 4 weeks after harvest). The results showed that seeds of the Sintanur rice variety exhibited dormancy with persistence up to 3 weeks. The interaction between dormancy-breaking treatments and storage period significantly affected germination percentage, normal seedling growth, and seedling dry weight. Treatment with 10 ppm GA₃ for 48 hours effectively broke seed dormancy in the Sintanur variety starting from 1 week after harvest.
Sarcosporidiasis on Rats in Smallholder Oil Palm Plantations in Deli Serdang Regency, North Sumatra Ginting, Makhrani Sari; Hasibuan, Henry Budi; Ginting, Sulaiman
JURNAL AGRONOMI TANAMAN TROPIKA (JUATIKA) Vol. 7 No. 3 (2025): Jurnal Agronomi Tanaman Tropika (JUATIKA) Vol. 7 No. 3 September 2025
Publisher : LPPM UNIVERSITAS ISLAM KUANTAN SINGINGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36378/juatika.v7i3.4835

Abstract

Rats are significant pests in oil palm plantations, attacking nearly all growth stages of the plants and causing damage that adversely affects productivity, leading to substantial losses. The protozoan Sarcocystis sp. is a parasite that infects rats and, in sufficient quantities, can cause death in these hosts. This protozoan is naturally present in rats but typically in small amounts. This study aimed to determine the prevalence of sarcosporidiasis (the presence of Sarcocystis sp.) in several rat species inhabiting smallholder oil palm plantations in Deli Serdang Regency, North Sumatra. Rat sampling was conducted from June to August 2025 using baited traps. The captured rats were then identified and categorized by species, sex, and weight. Sarcocystis sp. infection was detected by observing the presence of 'milky white threads' in the muscles, particularly in the rats' legs. The data obtained were analyzed both descriptively and quantitatively. Results showed that two rat species were captured: Rattus argentiventer and Rattus tiomanicus. Only 29.4% of the captured rats tested positive for the protozoan, of which 63.3% were male and 36.7% were female. All rats testing positive for the protozoan belonged exclusively to the R. tiomanicus species
Effectiveness Test of Several Bioinsecticides and Chemical Insecticides on the Mortality of Whitefly Pests (Bemisia tabaci) Iqbal Prayuda; Susanti, Rini; Mazlan, Zulaikha
JURNAL AGRONOMI TANAMAN TROPIKA (JUATIKA) Vol. 8 No. 1 (2026): Jurnal Agronomi Tanaman Tropika (JUATIKA) Vol. 8 No. 1 January 2026
Publisher : LPPM UNIVERSITAS ISLAM KUANTAN SINGINGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36378/juatika.v8i1.5060

Abstract

Whitefly (Bemisia tabaci) is a major pest affecting various horticultural commodities and is challenging to control due to its high adaptability, rapid reproduction, and resistance to multiple chemical insecticides. This study aimed to compare the effectiveness of bioinsecticides and chemical insecticides on B. tabaci mortality. The research was conducted in the laboratory and greenhouse of the Malaysian Agricultural Research and Development Institute (MARDI) in September 2025, using a non-factorial Completely Randomized Design (CRD) with seven treatments and three replications. The seven treatments included Wood Vinegar, Paraffin Oil, Canola Oil, Neem Oil, Metarhizium anisopliae, Abamectin 1.8 EC, Diafenthiuron 250 SC, and water as the control. Applications were performed in the laboratory using the dipping method and in the greenhouse using the spraying method, with 30 B. tabaci nymphs per treatment and replication. Mortality was recorded at 24, 48, and 72 hours post-application. Laboratory results showed mortality rates of 24.44% for Wood Vinegar, 62.22% for Paraffin Oil, 71.11% for Canola Oil, 74.44% for Neem Oil, 70.00% for M. anisopliae, 38.89% for Abamectin, and 84.44% for Diafenthiuron. In the greenhouse, mortality rates were 16.67% for Wood Vinegar, 60.00% for Paraffin Oil, 67.78% for Canola Oil, 70.00% for Neem Oil, 62.22% for M. anisopliae, 30.00% for Abamectin, and 81.11% for Diafenthiuron 250 SC. Overall, among the chemical insecticides, Diafenthiuron exhibited the highest mortality and was the most effective treatment. Among the bioinsecticides, Neem Oil achieved the highest mortality. Based on these results, Neem Oil shows potential as a more environmentally friendly alternative control agent, while Diafenthiuron is suitable for use under conditions of high pest infestation.
Selection of Rice (Oryza sativa L.) T1 for Sweet14 Gene Resistance to Bacterial Leaf Blight Disease Syadenta, M. Dzaky; Utami, Sri; Fathirah, Fatin; M.Y, Noor Shahira,; Seman, Zulkifli Ahmad
JURNAL AGRONOMI TANAMAN TROPIKA (JUATIKA) Vol. 8 No. 1 (2026): Jurnal Agronomi Tanaman Tropika (JUATIKA) Vol. 8 No. 1 January 2026
Publisher : LPPM UNIVERSITAS ISLAM KUANTAN SINGINGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36378/juatika.v8i1.4987

Abstract

Bacterial leaf blight (BLB), caused by Xanthomonas oryzae pv. oryzae (Xoo), is a major rice disease responsible for significant yield losses in Asia. One effective strategy to control this disease is the development of genetically resistant rice varieties. The xa5 mutant allele, an altered form of the TFIIAγ5 gene, is known to confer broad resistance to BLB. This study aimed to screen T1 generations of rice edited at the TFIIAγ5 gene and assess their resistance to BLB. PCR analysis of the T1 generation revealed the presence of Cas9 gene sequences in some edited lines, indicating inheritance of the transgene from the T0 generation. DNA sequencing of the target site confirmed the presence of small mutations that may alter the function of the TFIIAγ5 gene, rendering it resistant. Disease inoculation assays showed that some T1 lines had significantly shorter lesions than wild-type controls, with lesion length reductions of up to 70%. These results indicate that TFIIAγ5 editing successfully mimics the function of the xa5 allele, conferring resistance to BLB. In conclusion, editing the TFIIAγ5 gene using the CRISPR/Cas9 system is an effective approach to producing BLB-resistant rice and contributes to the development of new, more sustainable, and environmentally friendly varieties.

Page 16 of 16 | Total Record : 158

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