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All Journal Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Journal of Degraded and Mining Lands Management Jurnal Agrotropika BIOVALENTIA: Biological Research Journal
Dwi Asmono
PT. Sampoerna Agro Tbk, PT Bina Sawit Makmur, Mesuji OKI
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Economics, Econometrics & Finance Environmental Science Immunology & microbiology Medicine & Pharmacology

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CANDIDATE GENES IDENTIFICATION OF OIL PALM (Elaeis guineensis Jacq.) INTEREST CHARACTERS USING PUBLISHED DATABASE Sarimana, Upit; Putro Priadi, Dwi; Hasmeda, Mery; Erika, Pratiwi; Herrero, Javier; Santika, Baitha; Wendra, Fahmi; Sembiring, Zulhermana; Asmono, Dwi
BIOVALENTIA: Biological Research Journal Vol. 7 No. 1 (2021)
Publisher : Biology Department, Faculty of Mathematics and Natural Sciences, Sriwijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (510.969 KB) | DOI: 10.24233/biov.7.1.2021.188

Abstract

Palm oil has supplied more than 30% of vegetable oil consumption worldwide. Rising demand has pushed oil palm plantations to increase the yield. It is well known that genetic has played a significant role in phenotypic performance. Moreover, in recent years, genomic data has emerged tremendously. Unfortunately on the gene related to oil palm yield. Therefore, a preliminary study to classify and select oil palm candidate genes associated with characteristic by scanning existing genes in oil palm or other in-silico species were conducted. Based on Blast2Go results, 22 genes related to oil biosynthesis, two specifically related to fruit number and fruit weight were analysed. Furthermore, 19 candidate genes were able to amplify.
THE EFFECT OF CULTURE MEDIA TYPE AND PLANT GROWTH REGULATORS ON CALLUS INDUCTION OF OIL PALM (Elaeis guineensis Jacq) PISIFERA TYPE Sulaksono, Gogoh; Hasmeda, Mery; Hanum, Laila; Wendra, Fahmi; Santika, Baitha; Asmono, Dwi
BIOVALENTIA: Biological Research Journal Vol. 7 No. 2 (2021)
Publisher : Biology Department, Faculty of Mathematics and Natural Sciences, Sriwijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (977 KB) | DOI: 10.24233/biov.7.2.2021.224

Abstract

Oil palm has a high economic value since it is one of the highest vegetable oil-producing plants compared to other oil-producing plants. The provision of good planting material for oil palm plantations is one of the determining factors to increase productivity. The parent Pisifera type of oil palm is important to develop the high-yielding oil palm Tenera varieties. The provision of oil palm material could be done through generative system with seeds and also could be done through vegetative approaches using tissue culture techniques. It aims to get plants that are genetically the same as their parents (true to type). The purpose of this study was to see the effect of different type of tissue culture media and plant growth regulators (PGR’s) on the callus induction stage of Pisifera type oil palm. The results show that the treatment using Murasige and Skoog (MS) culture media is able to give a better effect when compared to the use of Eeuwens and Blake (Y3) basic media. While the use of PGR treatment (H6 = NAA 6 mg/l + 2.4-D 0.5 mg/l) showed a callus growth percentage of 76%, which was better than (H1 = Kin 0.1 mg/l + 2.4-D 100 mg/l) by 42%.
Weed Community Changes Due To Herbicide Treatment In Mature Oil Palm Plantations Apriansa, Azharudin; Yakup, Yakup; Susilawati, Susilawati; Asmono, Dwi; Wandri, Ruli
BIOVALENTIA: Biological Research Journal Vol. 10 No. 2 (2024)
Publisher : Biology Department, Faculty of Mathematics and Natural Sciences, Sriwijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24233/biov.10.2.2024.441

Abstract

Stenochlaena palustris, commonly known as pakisan weed, poses significant challenges in oil palm plantations due to its highly invasive nature, which can lead to reduced agricultural productivity. Management of this weed is critical, as effective control measures can inhibit its dominance and promote the proliferation of alternative weed species, thereby enhancing biodiversity within the ecosystem. This study aimed to 1) assess the effectiveness of the herbicide ammonium glufosinate, in combination with an adjuvant, for controlling S. palustris in oil palm plantations, and 2) investigate the subsequent alterations in the weed community structure following herbicide application. We employed a randomised group design (RAK), incorporating the herbicide with added adjuvants. Results showed a clear change from S. palustris to Asystasia sp. as the dominant species. Treatments K and H had the most Asystasia sp., while treatment L had the least. Furthermore, we clearly compared treatments L, K, and S to the control treatment, emphasizing the emergence of diverse species within the treatment plots. However, low levels of diversity and evenness suggest a stressed weed community, indicating that the herbicide application can disrupt existing ecological balances. This study emphasizes the importance of assessing herbicide impacts not only on targeted weed species but also on broader community dynamics, revealing a significant research gap in understanding the long-term ecological consequences of herbicide use in oil palm plantations.
Oil palm frond decomposition and soil carbon stocks in response to fertilization regime and management zones Wandri, Ruli; Hairiah, Kurniatun; Suprayogo, Didik; van Noordwijk, Meine; Asmono, Dwi
Journal of Degraded and Mining Lands Management Vol. 12 No. 5 (2025)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2025.125.9011

Abstract

Oil palm plantations face sustainability challenges with variable yields and significant greenhouse gas emissions. To optimize nutrient cycling while maintaining soil carbon stocks, this study investigated the effects of fertilization intensity and spatial management on organic matter decomposition. A factorial experiment in South Sumatra (Indonesia) used a completely randomized block design with three fertilization levels (low, intermediate, high). Decomposition was monitored in three spatial zones (weeded circle, frond stack, interrow) using litter bags over 52 weeks, with sequential harvesting at 13 time points. Soil properties, litter quality, and environmental factors were analyzed using ANOVA and regression models. Results showed decomposition constants ranging from 0.0180 to 0.0258 week?¹ and half-life times of 16 to 32 weeks, with high fertilization treatments accelerating decomposition by 28% but reducing soil carbon (2.05% to 2.77%) below the litter bags compared to low fertilization (4.37%). Frond stack zones exhibited 35% faster decomposition while maintaining higher carbon levels. The regression model combining soil and frond C/N ratios explained 73% of the variance in decomposition. These findings reveal trade-offs between rapid nutrient cycling and carbon storage, demonstrating that sustainable oil palm production requires precision spatial management rather than uniform high fertilization. This study recommends implementing reduced-intensity inorganic fertilization, avoiding nutrient application in frond stacking zones, and expanding organic matter placement in inter-row areas. Future research should prioritize quantifying belowground carbon dynamics and fine root turnover to develop management frameworks balancing immediate productivity with long-term sustainability.
SELEKSI DURA ANGOLA DIDASARKAN ANALISIS VARIASI FENOTIPE Lesmana, Bayu; Setiawan, Kukuh; Hapsoro, Dwi; Asmono, Dwi; Karyanto, Agus
JURNAL AGROTROPIKA Vol. 24 No. 2 (2025): Jurnal Agrotropika Vol 24 No 2, Oktober 2025
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/ja.v24i2.11259

Abstract

Indonesia remains the world’s leading producer of palm oil, contributing substantially to the national economy. Sustaining productivity growth requires the development of superior varieties characterized by high oil yield, reduced trunk height increment, and enhanced oil quality. Dura Angola, a germplasm originating from Africa and introduced by PT Binasawit Makmur in 2010, offers the potential to broaden the narrow genetic base of Dura while providing valuable agronomic traits. This study aimed to identify promising genotypes and select superior Dura Angola populations based on phenotypic variation and genetic parameters. The research was conducted at Mesuji Estate, PT Aek Tarum, South Sumatra, on 1,029 Dura Angola palms planted in 2012. Traits evaluated included yield components (bunch number, fresh fruit bunch weight, average bunch weight), vegetative growth (annual trunk height increment, rachis length, leaf area, frond production), and oil yield components (fruit-to-bunch ratio, mesocarp-to-fruit ratio, oil-to-wet mesocarp ratio, oil-to-bunch ratio, and oil extraction rate). Data were analyzed using an Unbalanced Incomplete Block Design within a General Linear Model framework, followed by estimation of heritability, genetic and phenotypic coefficients of variation, and trait correlations. Significant phenotypic variation was observed for most traits, with high heritability detected in bunch number, fresh fruit bunch weight, rachis length, leaf area, fruit-to-bunch ratio, and oil-to-bunch ratio. Based on the integration of genetic estimates and phenotypic performance, ten elite individuals were identified from accessions A074/20, A040/22, A040/12, A095/05, A041/26, A041/22, and A075/08. These individuals are recommended as potential female parents for introgression with elite Dura lines or to produce commercial D×P hybrids. The utilization of these selected Dura Angola individuals is expected to broaden the genetic base of Dura, improve breeding efficiency, and support the development of superior oil palm varieties for sustainable intensification.
Keragaan Genetik dan Pendugaan Heritabilitas pada Komponen Hasil dan Kandungan β-Karoten Progeni Kelapa Sawit Putri, Lollie Agustina P.; Sudarsono, ,; Aswidinnoor, Hajrial; Asmono, Dwi
Jurnal Agronomi Indonesia (Indonesian Journal of Agronomy) Vol. 37 No. 2 (2009): Jurnal Agronomi Indonesia
Publisher : Indonesia Society of Agronomy (PERAGI) and Department of Agronomy and Horticulture, Faculty of Agriculture, IPB University, Bogor, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (64.182 KB) | DOI: 10.24831/jai.v37i2.1407

Abstract

An experiment to study heritability, general combining ability (GCA), and specific combining ability (SCA) of some traits in oil palm progeny was conducted at Kebun Surya Adi, PT. Bina Sawit Makmur, Sampoerna Agro, Ogan Komering Ilir, Sumatera Selatan, from July 2006 until September 2008.  The research was arranged in alpha design with two replications, 50 progenies and 12 palms for each replication, respectively. The results showed that broad sense heritability estimates were high for mesocarp to fruit, oil to fresh mesocarp, and  kernel to fruit content ratios, and β-carotene content; medium for bunch number and oil to bunch ratio; and low for fresh bunch and fruit to bunch ratio. The general combining ability (GCA) of bunch number, mesocarp to fruit, oil to fresh mesocarp, and kernel to fruit ratios and β-carotene content were highly significant. Similarly, the specific combining ability (SCA) of mesocarp to fruit, oil to fresh mesocarp, and kernel to fruit ratios and β-carotene content were also highly significant.   Key words:  Heritability, combining ability, Elaeis guineensis Jacq., alpha design, β-carotene
Co-Authors Agus Karyanto Apriansa, Azharudin Bayu Lesmana, Bayu Didik Suprayogo DWI HAPSORO Dwi Putro Priadi Erika, Pratiwi HAJRIAL ASWIDINNOOR Herrero, Javier Kukuh Setiawan Kurniatun Hairiah Laila Hanum Lollie Agustina P. Putri Meine Van Noordwijk Mery Hasmeda Santika, Baitha Sarimana, Upit Sembiring, Zulhermana Sudarsono Sulaksono, Gogoh Susilawati, Susilawati Wandri, Ruli Wendra, Fahmi Yakup Parto