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Tropical Plantation Journal
Published by Akademi Komunitas Perkebunan Yogyakarta
ISSN : 28281551     EISSN : 28281543     DOI : https://doi.org/10.56125
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Tropical Plantation Journal Akademi Komunitas Perkebunan Yogyakarta is a peer-reviewed, open-access scientific journal published by ,Tropical Plantation Journal aims to publish quality and original research articles in the field of plantations that include: Agrotechnology Management and agribusiness Socio-economic plantations Plant Physiology Plant breeding and genetics Plant protection Soil science and fertilization Biotechnology Agroclimatology
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Kehutanan
Articles 58 Documents
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Effect of Organic Matter Types and Decomposition Times on the Growth of Oil Palm Seedlings in the Pre-Nursery Stage HP, Julsento; Puspitasari, Herlina Mega; Nurcahyono, Nurcahyono; Abdila, Wini Prayogi; Wisnubroto, Muhammad Parikesit; Anggraini, Yuliana Debora
Tropical Plantation Journal Vol 4, No 2 (2025): TROPICAL PLANTATION JOURNAL
Publisher : Akademi Komunitas Perkebunan Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56125/tpj.v4i2.62

Abstract

Pertumbuhan bibit kelapa sawit sangat dipengaruhi oleh kualitas media tanam, termasuk kandungan bahan organik yang digunakan. Lamanya dekomposisi bahan organik turut menentukan ketersediaan unsur hara bagi tanaman sejak awal pertumbuhan. Penelitian ini bertujuan untuk mengkaji pengaruh jenis bahan organik dan lama dekomposisi terhadap pertumbuhan bibit kelapa sawit pada budidaya pra-pembibitan. Penelitian ini menggunakan percobaan faktorial dengan rencana acak lengkap (RAL) yang terdiri dari dua faktor dan tiga kali ulangan. Faktor pertama adalah berbagai jenis bahan organik (pupuk kandang, legum, eceng gondok). Faktor kedua adalah lama dekomposisi bahan organik yang diamati pada minggu pertama, kedua, dan ketiga. Data hasil penelitian dianalisis menggunakan analisis ragam (ANOVA) dengan taraf nyata 5%. Apabila terdapat perbedaan nyata dilanjutkan dengan Uji Jarak Berganda Duncan (UJT) pada taraf nyata 5%. Hasil penelitian ini secara umum menunjukkan bahwa bahan organik legum memberikan hasil yang lebih stabil dan cenderung lebih baik dibandingkan pupuk kandang dan eceng gondok untuk semua parameter pertumbuhan bibit kelapa sawit pada tahap pra-pembibitan. Secara statistik, hasilnya tidak menunjukkan perbedaan yang signifikan antar perlakuan. Namun secara numerik, bahan organik legum lebih konsisten dalam mendukung pertumbuhan vegetatif bibit kelapa sawit. Penelitian ini tidak hanya memberikan kontribusi pada aspek teknis budidaya tetapi juga meningkatkan pemahaman tentang manfaat biomassa legum sebagai sumber nutrisi yang efektif dan efisien dalam mendukung pertumbuhan awal bibit kelapa sawit.
Not Just Rain: Quantitative Evidence of the Impact of Historical Rainfall Period 2016-2021 on Palm Oil Production in Riau Indonesia Gunawan, Sri; Pratama, Oktarianto Tidar; Nurcahyono, Nurcahyono
Tropical Plantation Journal Vol 4, No 2 (2025): TROPICAL PLANTATION JOURNAL
Publisher : Akademi Komunitas Perkebunan Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56125/tpj.v4i2.55

Abstract

Environmental factors greatly influence oil palm productivity, especially rainfall, which impacts the plant's physiological state. This study aims to analyze the relationship between rainfall and oil palm production. This study used a two-stage survey method. Time series data from 2016-2021 were used to evaluate the relationship between monthly rainfall and three production parameters (productivity, number of fresh fruit bunches (FFB), and average bunch weight (ABW). Correlation and regression analyses were conducted to identify significant contributions of rainfall to yield variables by considering the time lag. The results showed that rainfall that occurred 24-36 months previously had a significant effect on productivity and the number of FFB with R2 values of 53.93% and 54.83%, and rainfall 37-38 months previously contributed to BJR with an R2 value of 40.33%. Rainfall has historically played an important role in determining oil palm yields. Plantation management based on long-term climatological data can be a new approach to optimizing sustainable oil palm production.
The Effect of Sample Weigh, Incubation Duration And Isolation Methods on The Quality of Phalaeonopsis amabilis root DNA Handayani, Etty; Rineksane, Innaka Ageng; Isnawan, Bambang Heri; Setiawan, Haris Anggita; Manto, Agus
Tropical Plantation Journal Vol 4, No 2 (2025): TROPICAL PLANTATION JOURNAL
Publisher : Akademi Komunitas Perkebunan Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56125/tpj.v4i2.63

Abstract

Orchid Ph. amabilis is one of the plants designated as "Indonesian National Flower" and designated as "Puspa Pesona Indonesia". Orchid Ph. amabilis has a diversity that is not widely known, so that it is necessary to identify it molecularly. DNA isolation is the first step in molecular testing. This study aims to determine the sample weight, incubation time and the appropriate isolation method for DNA isolation from samples of Ph.amabilis orchid roots. In this study, the DNA isolation stage used two experimental methods, namely the CTAB method (Murray and Thompson) and the mini kit. The research method used was a single factor experiment with a combination of sample weight and incubation time consisting of 6 treatments with 3 replications, so 18 experimental units were obtained. The experimental treatment used was from the roots of the orchid Ph. amabilis which has a sample weight of 0.25 g, 0.5 g, and 0.75 g and each sample weight treatment was incubated for 30 minutes and 60 minutes. In addition, DNA isolation using the kit method had a sample weight of 0.25 g, 0.5 g and 0.75 g and an incubation period of 10 minutes. The results showed that the DNA isolation of Ph. amabilis with a sample weight of 0.75g, incubation time of 30 minutes using the CTAB method showed the best treatment in producing DNA with a concentration of 384 ng/µl and a purity of 1.9. This study is expected to provide information on sample weight, incubation time and the appropriate method for DNA isolation of Ph. amabilis orchid roots.
Enhancing Reliability and Maintenance Efficiency of Screw Press Machines in Palm Fruitlet Processing Mills: A Failure Mode and Effect Analysis (FEMA) Approach Aditya, Abbiyu Bima; Nugroho, Bagus; Hermantoro, Hermantoro; Renjani, Rengga Arnalis
Tropical Plantation Journal Vol 4, No 2 (2025): TROPICAL PLANTATION JOURNAL
Publisher : Akademi Komunitas Perkebunan Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56125/tpj.v4i2.56

Abstract

This study analyzed the reliability and failure risks of screw press machine components in a palm oil loose fruit mill using the Failure Mode and Effect Analysis (FMEA) method. The objective was to identify critical components, evaluate their Risk Priority Number (RPN), and propose appropriate maintenance strategies. Data were collected through questionnaires, field observations, and maintenance records. The RPN was calculated by multiplying severity, occurrence, and detection scores, while reliability was assessed using the Mean Time Between Failures (MTBF) formula. The worm screw showed the highest RPN at 252, indicating a critical risk level, while the press cage followed with an RPN of 210. MTBF analysis revealed that the worm screw required replacement every 313.5 hours, whereas components like the V-belt and electro motor had longer MTBF intervals of up to 3135 hours. The findings suggested that targeted maintenance on high-risk components could reduce downtime and enhance production efficiency. This study concluded that prioritizing preventive maintenance based on RPN and MTBF results was crucial for maintaining the operational performance of screw press machines in palm oil processing.
The Effectiveness of Progressive Pruning on Looses Production Nugraha, Bima Sakti Novi Tri; Wirianata, Herry; Budihardjo, Kadarwati
Tropical Plantation Journal Vol 4, No 2 (2025): TROPICAL PLANTATION JOURNAL
Publisher : Akademi Komunitas Perkebunan Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56125/tpj.v4i2.64

Abstract

Oil palm canopy is formed every month as many as 1-3 fruits, depending on the age and growth of the plant. Each oil palm canopy supports the formation of leaf/frond positions that are arranged in a spiral. Progressive pruning of the main shoots is carried out directly by harvest workers (not the Special Main Shoot Work Team) and is carried out simultaneously when cutting the fruit while still referring to the basic principle of the number of productive fronds that must still be maintained according to the provisions (leaf area index). This study aims to determine the role of the progressive pruning system in minimizing looses (bunches and looses fruit) in oil palm plantations. The basic method used in this study is a quantitative descriptive method using t-test analysis, the parameters used are the looses of bunches and looses fruit. The conclusion of the study is that the progressive pruning system can reduce losses of oil palm fruit (bunches) and loose fruit, compared to the periodic pruning system at the overall looses point of the three looses point chains, namely at the main, plate and market.
Alternative Household Fuel: Fruitless Palm Based on Gasification Biomass with Gasoline and Liquefied Petroleum Gas Saloko, Subakho Aryo; Nurcahyono, Nurcahyono; Kurniawan, Indra; Hartono, Hartono; Gunawan, Sri
Tropical Plantation Journal Vol 4, No 2 (2025): TROPICAL PLANTATION JOURNAL
Publisher : Akademi Komunitas Perkebunan Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56125/tpj.v4i2.57

Abstract

Fuel sources derived from oil palm plants are abundant but have not been optimally utilized by the community. This study aims to show the performance efficiency of cheap fuel fruitless (Brondolan) using people's stoves as fuel substitutes for kerosene, coal, and Liquid Petroleum Gas (LPG). This study uses a quantitative observation method. The types of fuel and stove materials used include (1) conventional kerosene-fired stoves, (2) conventional LPG-fired stoves, (3) gasified biomass stoves fueled with palm fruit, (a) large stove size (Prime Brand), and (b) small stove size (People's Stove Brand). The research procedure is measured by heating 5 liters of water from room temperature to boiling (1000C). The results show that fruitless is more efficient than gasoline, coal, and LPG is more efficient. Based on trials, heat 5 liters of water to a boil at Rp. 200, Gasoline Rp. 1,650, and LPG Rp. 381. The government's role is to provide socialization and policies in applying alternative materials with lozenges to reduce the use of gasoline and LPG. Unrefined fuel can be an alternative material for household scale stoves.
Distribution of Argentine Flies (Cecidochares connexa Macquart) as a Biological Control Agent of Siamese Weeds (Chromolaena odorata L.) Muin, Abdul; Santi, Idum Satia; Wahyud, Dicky; Manto, Agus
Tropical Plantation Journal Vol 4, No 2 (2025): TROPICAL PLANTATION JOURNAL
Publisher : Akademi Komunitas Perkebunan Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56125/tpj.v4i2.65

Abstract

This study aims to determine the level of attack and distribution of Argentine flies (Cecidochares connexa) as biological control agents against Siamese weed (Chromolaena odorata) in Gunungkidul Regency. The method used was a field survey in June–July 2024, with direct observation and sampling of host plants in four cardinal directions from the starting point of release (Wanagama I Forest). The parameters observed included the percentage of attacks, the number of puru, and puru holes per plant. The results showed that the highest attacks occurred in the Western region (72%), followed by the South (69%), the North (68%), and the East (49%). The average attack across the region reached 65%.  C. connexa has become widespread and established in the Gunungkidul area.
Morphological Tolerance of Jack Bean Landraces (Canavalia ensiformis L.) to Drought Stress Fadillah, Dina; Ma’ruf, Amar
Tropical Plantation Journal Vol 4, No 2 (2025): TROPICAL PLANTATION JOURNAL
Publisher : Akademi Komunitas Perkebunan Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56125/tpj.v4i2.66

Abstract

Canavalia ensiformis L., or jack bean, is a type of secondary crop native to Asia and Africa. In South and Southeast Asia, particularly in India, Sri Lanka, Myanmar, and Indo-China, jack bean can now grow successfully in tropical climates and on a variety of soil types, including those with low to high pH and little or no water. Drought is a significant abiotic factor leading to low soil water availability. These conditions stress plants. The first response in plants facing severe water deficit conditions is to close their stomata, closing or narrowing the stomata that supply water, especially to the roots. The research aims to understand the morphological responses, identify adaptation mechanisms, and improve understanding of the interactions between jack bean landraces to drought stress. The research was conducted at the hydroponic house of the Faculty of Agriculture, Universitas Asahan, from December 2023 to March 2024. The research method used a factorial experiment arranged with a Completely Randomized Block Design consisting of 3 levels of watering and 1 control. The first watering treatment was carried out once a day, the second treatment was carried out every two days, the third treatment was carried out every three days, and the control was carried out twice a day, namely morning and evening. Each watering was 30 ml per plant. The results of this study indicate that drought stress can inhibit the growth of jack bean, including plant height, leaflet number, and leaf area. Based on the Ward Method dendogram, the drought tolerance level of each jack bean landrace varies. Genotype 3 (Malang), genotype 4 (P1.2) (small patterned Banyumas), and genotype 1 (P1.1) (Banyumas) are categorized as sensitive. Genotype 2 (P2.1) (Indramayu) is categorized as moderate. And genotype 5 (P2.2) (small patterned Indramayu) is categorized as tolerant. The jack bean plant with the highest tolerance level only looks wilted on the leaves, it doesn't immediately turn yellow under drought stress treatment.

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