Agusdin Dharma Fefirenta

RESEARCH INTERESTS

Phytopathology, Mycorrhiza, Plant Ecology

Scopus Publications

UNRAVELING KNOWLEDGE-BASED CHATBOT ADOPTION INTENTION IN ENHANCING SPECIES LITERACY
Lindung Parningotan Manik, Dwi Setyo Rini, Priyanti Priyanti, Ariani Indrawati, Agusdin D. Fefirenta, Zaenal Akbar, Tutie Djarwaningsih Sumowardoyo, Niken Fitria Apriani, and Yulia Aris Kartika
Informing Science Institute
Aim/Purpose: This research investigated the determinant factors influencing the adoption intentions of Chatsicum, a Knowledge-Based Chatbot (KBC) aimed at enhancing the species literacy of biodiversity students. Background: This research was conducted to bridge the gap between technology, education, and biodiversity conservation. Innovative solutions are needed to empower individuals with knowledge, particularly species knowledge, in preserving the natural world. Methodology: The study employed a quantitative approach using the Partial Least Square Structural Equation Modeling (PLS-SEM) and sampled 145 university students as respondents. The research model combined the Task-Technology Fit (TTF) framework with elements from the Diffusion of Innovation (DOI), including relative advantage, compatibility, complexity, and observability. Also, the model introduced perceived trust as an independent variable. The primary dependent variable under examination was the intention to use the KBC. Contribution: The findings of this research contribute to a deeper understanding of the critical factors affecting the adoption of the KBC in biodiversity education and outreach, as studies in this context are limited. This study provides valuable insights for developers, educators, and policymakers interested in promoting species literacy and leveraging innovative technologies by analyzing the interplay of TTF and DOI constructs alongside perceived trust. Ultimately, this research aims to foster more effective and accessible biodiversity education strategies. Findings: TTF influenced all DOI variables, such as relative advantage, compatibility, observability, and trust positively and complexity negatively. In conclusion, TTF strongly affected usage intention indirectly. However, relative advantage, complexity, and observability insignificantly influenced the intention to use. Meanwhile, compatibility and trust strongly affected the use intention. Recommendations for Practitioners: Developers should prioritize building and maintaining chatbots that are aligned with the tasks, needs, and goals of the target users, as well as establishing trust through the assurance of information accuracy. Educators could develop tailored educational interventions that resonate with the values and preferences of diverse learners and are aligned closely with students’ learning needs, preferences, and curriculum while ensuring seamless integration with the existing educational context. Conservation organizations and policymakers could also utilize the findings of this study to enhance their outreach strategies, as the KBC is intended for students and biodiversity laypeople. Recommendation for Researchers: Researchers should explore the nuances of relationships between TTF and DOI, as well as trust, and consider the potential influence of mediating and moderating variables to advance the field of technology adoption in educational contexts. Researchers could also explore why relative advantage, complexity, and observability did not significantly impact the usage intention and whether specific user segments or contextual factors influence these relationships. Impact on Society: This research has significant societal impacts by improving species literacy, advancing technology in education, and promoting conservation efforts. Species knowledge could raise awareness regarding biodiversity and the importance of conservation, thereby leading to more informed and responsible citizens. Future Research: Future works should address the challenges and opportunities presented by KBCs in the context of species literacy enhancement, for example, interventions or experiments to influence the non-significant factors. Furthermore, longitudinal studies should investigate whether user behavior evolves. Ultimately, examining the correlation between species literacy, specifically when augmented by chatbots, and tangible conservation practices is an imperative domain in the future. It may entail evaluating the extent to which enhanced knowledge leads to concrete measures promoting biodiversity preservation.


Developmental status of duku stem-canker in Jambi
S Handoko, A Meilin, W Sulistiono, and A D Fefirenta
IOP Publishing
Abstract Dead molt disease or duku stem-canker disease has been widely discussed in several studies. Some suspect it is caused by Phytophthora palmivora, or Ceratocystis fimbriata, and possibly Botryodiplodia spp. In the last decade, studies and discussions in control efforts have been carried out. Control studies using biological control strategies continue to be carried out, especially in the South Sumatera region, as well as control studies using pesticides have also received a lot of attention, but the control results have not reached a satisfactory stage. There are still many duku plants that have experienced widespread mortality. Finally, we will discuss about the research that has done into developing effective and sustainable control strategies.


Survey for threatened plants in riparian fragmented forests: A case study on three Vatica (Dipterocarpaceae) species in Kapuas Hulu, West Kalimantan
Enggal Primananda, Sunardi, Agusdin Dharma Fefirenta, Kusuma Rahmawati, Farida Rosana Mira, Sri Wilarso Budi, and Iyan Robiansyah
Elsevier BV



Arbuscular mycorrhizal fungi induced different proline accumulations in two sorghum accessions in a response to drought stress
Idris Idris, Agusdin Dharma Fefirenta, Vega Kartika Sari, and I Made Sudiana
Walter de Gruyter GmbH
Abstract Sorghum has good adaptability to drought stress conditions, but its early vegetative phase and the generative phase are susceptible to stress. Understanding the physiological response of plants under drought and mechanisms regulating drought tolerance in a plant, mediated by arbuscular mycorrhizal fungi (AMF) will be useful in developing a strategy to deal with drought. Here, a pot experiment was used to explore the growth performance, biomass production and physiological responses of two sorghum accessions (4183A and JP-1) inoculated by the AMF under drought stress, as well as the effect of AMF on soil enzyme and microbial stability. Based on growth observations, the AMF inoculation treatment had not significant effect on increasing the drought resistance of the two sorghum accessions. Drought stress decreased the rate of height increment for 4183A, and JP-1 accessions by 37% and 55%, respectively, compared to normal conditions. Shoot dry weight and root dry weight losses were up to 59% and 66%, respectively, compared to well-watered conditions. However, the interaction of AMF and plants to deal with drought can be captured through physiological response, particularly proline accumulation. AMF inoculation in JP-1 accession reduced proline accumulation (99.91 mM/leaf fresh weight) compared to non-AMF inoculated plants (149.86 mM/leaf fresh weight). It can be implied that mycorrhiza can reduce plant stress. In contrast to accession 4183A, there was an increase in the accumulation of proline in plants inoculated with mycorrhiza under drought conditions. Additionally, AMF inoculation improved acid phosphatase activity in the soil and proved crucial for maintaining the stability of the rhizosphere microorganisms under drought-stressed conditions.


THE POPULATION AND DISTRIBUTION OF AGARWOOD PRODUCING TREE (AQUILARIA MALACCENSIS) IN RIAU PROVINCE
Yulizah Yulizah, Joeni Setijo Rahajoe, Agusdin Dharma Fefirenta, and Agung Adi Nugroho
National Research and Innovation Agency
YULIZAH, RAHAJOE, J. S., FEFIRENTA, A. D. & NUGROHO, A. D. 2022. The population and distribution of agarwood producing tree (Aquilaria malaccensis) in Riau Province. Reinwardtia 21(1): 1–11. — Riau Province is one of the largest agarwood producers and supplier of Aquilaria malaccensis species in Indonesia, based on the data of trade quota that was issued by the Ministry of Environment and Forestry in 2018. The quota data will be used for monitoring the sustainability of the population agarwood producing trees in the wild. The aimed of the study were to determine the natural population distribution and habitat preference of wild agarwood-producing trees in Riau Province. The agarwood population census carried out by making random plots in the study sites, soil moisture, soil pH, temperature and the humidity recorded, and the macronutrients data also used to support the habitat preferences for the agarwood producing taxa tree. Seven locations of agarwood producing trees were selected for the study sites including Taman Hutan Raya (TAHURA: Forest Park Garden) Sultan Syarif Hasyim (SSH), three community forests in Siak Sri Indapura District (Gosib, Perincit and Dosan), and three community forests in Bengkalis District (Langkat, Pangkalan Jambi, and Duri Km 13). The density of agarwood producing trees in TAHURA SSH recorded for about 38 plants ha-1, with an average diameter distribution was 15 cm, and the tree height was 9.51 m. Perincit data showed the highest density, with 8.13 plants ha-1  with an average distribution of tree diameters was recorded for 20.8 cm and the tree height was 9.11 m. While the lowest tree density was recorded for 0.58 plant ha-1 in Gosib, the average diameter and tree height were recorded for 40.15 cm and 14.70 m, respectively. Environmental parameters and soil chemistry were the main factors to support the tree growth of agarwood. The result was necessary for the conservation program of A. Malaccensis, and support data for providing potential seeds source and seedling. The nutrient content preference from the finding of this research will also be used as the necessary information of the needs of nutrient content in the natural habitat of agarwood plantations. 


An ontology-driven personalized faceted search for exploring knowledge bases of capsicum
Zaenal Akbar, Hani Febri Mustika, Dwi Setyo Rini, Lindung Parningotan Manik, Ariani Indrawati, Agusdin Dharma Fefirenta, and Tutie Djarwaningsih
MDPI AG
Capsicum is a genus of flowering plants in the Solanaceae family in which the members are well known to have a high economic value. The Capsicum fruits, which are popularly known as peppers or chili, have been widely used by people worldwide. It serves as a spice and raw material for many products such as sauce, food coloring, and medicine. For many years, scientists have studied this plant to optimize its production. A tremendous amount of knowledge has been obtained and shared, as reflected in multiple knowledge-based systems, databases, or information systems. An approach to knowledge-sharing is through the adoption of a common ontology to eliminate knowledge understanding discrepancy. Unfortunately, most of the knowledge-sharing solutions are intended for scientists who are familiar with the subject. On the other hand, there are groups of potential users that could benefit from such systems but have minimal knowledge of the subject. For these non-expert users, finding relevant information from a less familiar knowledge base would be daunting. More than that, users have various degrees of understanding of the available content in the knowledge base. This understanding discrepancy raises a personalization problem. In this paper, we introduce a solution to overcome this challenge. First, we developed an ontology to facilitate knowledge-sharing about Capsicum to non-expert users. Second, we developed a personalized faceted search algorithm that provides multiple structured ways to explore the knowledge base. The algorithm addresses the personalization problem by identifying the degree of understanding about the subject from each user. In this way, non-expert users could explore a knowledge base of Capsicum efficiently. Our solution characterized users into four groups. As a result, our faceted search algorithm defines four types of matching mechanisms, including three ranking mechanisms as the core of our solution. In order to evaluate the proposed method, we measured the predictability degree of produced list of facets. Our findings indicated that the proposed matching mechanisms could tolerate various query types, and a high degree of predictability can be achieved by combining multiple ranking mechanisms. Furthermore, it demonstrates that our approach has a high potential contribution to biodiversity science in general, where many knowledge-based systems have been developed with limited access to users outside of the domain.


Out-of-Scope Intent Detection on A Knowledge-Based Chatbot
Lindung Manik and
The Intelligent Networks and Systems Society

RECENT SCHOLAR PUBLICATIONS

Unraveling Knowledge-Based Chatbot Adoption Intention in Enhancing Species Literacy
LP Manik, DS Rini, P Priyanti, A Indrawati, AD Fefirenta, Z Akbar, ...
Interdisciplinary Journal of Information, Knowledge, and Management 19, 011 2024



Developmental status of duku stem-canker in Jambi
S Handoko, A Meilin, W Sulistiono, AD Fefirenta
IOP Conference Series: Earth and Environmental Science 1297 (1), 012007 2024



Survey for threatened plants in riparian fragmented forests: A case study on three Vatica (Dipterocarpaceae) species in Kapuas Hulu, West Kalimantan
E Primananda, AD Fefirenta, K Rahmawati, FR Mira, SW Budi, ...
Journal for Nature Conservation 72, 126367 2023



PERKECAMBAHAN EMPAT JENIS Legume Cover Crop (LCC)
AD Fefirenta, S Sunardi, AD Prawestri
Gunung Djati Conference Series 18, 101-112 2023



Arbuscular mycorrhizal fungi induced different proline accumulations in two sorghum accessions in a response to drought stress
I Idris, AD Fefirenta, VK Sari, IM Sudiana
Agriculture (Pol'nohospodrstvo) 68 (3), 127-142 2023



THE POPULATION AND DISTRIBUTION OF AGARWOOD PRODUCING TREE (AQUILARIA MALACCENSIS) IN RIAU PROVINCE
Y Yulizah, JS Rahajoe, AD Fefirenta, AA Nugroho
REINWARDTIA 21 (1), 1-11 2022



Pola persebaran marga bambu di Indonesia
IPGP Damayanto, AD Fefirenta
Prosiding Seminar Nasional Biologi 7 (1), 24-41 2021



Out-of-scope intent detection on a knowledge-based chatbot
L Manik, Z Akbar, HF Mustika, A Indrawati, DS Rini, AD Fefirenta, ...
Int. J. Intell. Eng. Syst. 14 (5), 446-457 2021



An Ontology-Driven Personalized Faceted Search for Exploring Knowledge Bases of Capsicum
Z Akbar, HF Mustika, DS Rini, LP Manik, A Indrawati, AD Fefirenta, ...
Future Internet 13 (7), 172 2021



NOTES ON Amydrium zippelianum (Araceae): A MESMERIZING SPECIES FROM EAST MALESIA
IE I Putu Gede P. Damayanto, Jalma Giring Sukmawati, Agusdin Dharma Fefirenta
AL-KAUNIYAH: Jurnal Biologi 14 (1), 63-77 2021



JAVANESE ENDEMIC STROBILANTHES (ACANTHACEAE): TAXONOMY, DISTRIBUTION AND CONSERVATION STATUS
YM Mambrasar, Y Robiah, Y Supriyanti, D Rosalina, S Sutikno, ...
BERITA BIOLOGI 19 (3 A), 343-353 2020



Studi Populasi dan Potensi Pasak Bumi (Eurycoma longifolia Jack) di Kabupaten Langkat, Propinsi Sumatera Utara
K Rahmawati, AD Fefirenta, VB Lestari
Riset Sebagai Fondasi Konservasi dan Pemanfaatan Tumbuhan dan Satwa Liar, 66 2018



PENGARUH DUA JENIS PUPUK HAYATI TERHADAP PERTUMBUHAN DAN PRODUKSI TANAMAN KEDELAI (Glycine Max L. Merill) VARIETAS GEMA
MIFTAKHURROHMAH, WASITO, A DHARMA F.
Jurnal Hijau Cendekia 2 (2), 8-13 2017



UJI KETAHANAN ENAM GALUR TANAMAN TOMAT (Lycopersicum esculentum Mill.) TERHADAP BEGOMOVIRUS
AC Azis, A Dharma
Jurnal Ilmiah Hijau Cendekia 2 (2), 1-7 2017



Mekanisme Ketahanan Kakao Bermikoriza Terhadap Cekaman Kekeringan dan Gangguan Penyakit
AD Fefirenta
Tesis). Fakultas Pertanian, Universitas Gadjah Mada, Yogyakarta 2014



Laju Perkembangan Penyakit Virus Belang Samar (Cowpea Mild Mottle Virus) pada Tiga Varietas Tanaman Kedelai (Glycine max L. Merill).
AD Fefirenta
Universitas Brawijaya 2011

MOST CITED SCHOLAR PUBLICATIONS

Out-of-scope intent detection on a knowledge-based chatbot
L Manik, Z Akbar, HF Mustika, A Indrawati, DS Rini, AD Fefirenta, ...
Int. J. Intell. Eng. Syst. 14 (5), 446-457 2021
Citations: 18



Pola persebaran marga bambu di Indonesia
IPGP Damayanto, AD Fefirenta
Prosiding Seminar Nasional Biologi 7 (1), 24-41 2021
Citations: 12



An Ontology-Driven Personalized Faceted Search for Exploring Knowledge Bases of Capsicum
Z Akbar, HF Mustika, DS Rini, LP Manik, A Indrawati, AD Fefirenta, ...
Future Internet 13 (7), 172 2021
Citations: 12



Survey for threatened plants in riparian fragmented forests: A case study on three Vatica (Dipterocarpaceae) species in Kapuas Hulu, West Kalimantan
E Primananda, AD Fefirenta, K Rahmawati, FR Mira, SW Budi, ...
Journal for Nature Conservation 72, 126367 2023
Citations: 4



PERKECAMBAHAN EMPAT JENIS Legume Cover Crop (LCC)
AD Fefirenta, S Sunardi, AD Prawestri
Gunung Djati Conference Series 18, 101-112 2023
Citations: 2



THE POPULATION AND DISTRIBUTION OF AGARWOOD PRODUCING TREE (AQUILARIA MALACCENSIS) IN RIAU PROVINCE
Y Yulizah, JS Rahajoe, AD Fefirenta, AA Nugroho
REINWARDTIA 21 (1), 1-11 2022
Citations: 2



JAVANESE ENDEMIC STROBILANTHES (ACANTHACEAE): TAXONOMY, DISTRIBUTION AND CONSERVATION STATUS
YM Mambrasar, Y Robiah, Y Supriyanti, D Rosalina, S Sutikno, ...
BERITA BIOLOGI 19 (3 A), 343-353 2020
Citations: 2



Mekanisme Ketahanan Kakao Bermikoriza Terhadap Cekaman Kekeringan dan Gangguan Penyakit
AD Fefirenta
Tesis). Fakultas Pertanian, Universitas Gadjah Mada, Yogyakarta 2014
Citations: 2



Arbuscular mycorrhizal fungi induced different proline accumulations in two sorghum accessions in a response to drought stress
I Idris, AD Fefirenta, VK Sari, IM Sudiana
Agriculture (Pol'nohospodrstvo) 68 (3), 127-142 2023
Citations: 1



Studi Populasi dan Potensi Pasak Bumi (Eurycoma longifolia Jack) di Kabupaten Langkat, Propinsi Sumatera Utara
K Rahmawati, AD Fefirenta, VB Lestari
Riset Sebagai Fondasi Konservasi dan Pemanfaatan Tumbuhan dan Satwa Liar, 66 2018
Citations: 1