cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Enggar Patriono
Contact Email
epatriono@unsri.ac.id
Phone
+62711 580306
Journal Mail Official
biovalentia@unsri.ac.id
Editorial Address
Biology Department, Faculty of Mathematics and Natural Sciences, Sriwijaya University Palembang-Prabumulih Road KM 32 Indralaya, Ogan Ilir, South Sumatera 30662 Indonesia
Location
Kab. ogan ilir,
Sumatera selatan
INDONESIA
BIOVALENTIA: Biological Research Journal
Published by Universitas Sriwijaya
ISSN : -     EISSN : 24771392     DOI : https://doi.org/10.24233/biov
Core Subject : Health, Science, Agriculture, Social,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science Immunology & microbiology Medicine & Pharmacology
BIOVALENTIA: Biological Research Journal aims to review and publish the Biological research results from researchers. The range of articles which BIOVALENTIA: Biological Research Journal publishing is the research results in Biology science and applied Biology. Biology science is included Ecology, Biosystematics, Physiology, Developmental Biology, Microbiology, Genetics. Applied Biology is included Biotechnology, and the sciences derived from Biology science.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 178 Documents
 12   13   14   15   16 
FIRST REPORT OF NEW WILT DISEASE ON Mangifera indica CAUSED BY Ceratocystis fimbriata IN INDONESIA Rahmat Pratama; Ahmad Muslim; Suwandi Suwandi
BIOVALENTIA: Biological Research Journal Vol. 9 No. 1 (2023)
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.9.1.2023.377

Abstract

Ceratocystis wilt and canker disease has severely compromised the profitability of Mangifera indica plantations in the world. In 2022, wilt and sudden death were observed on Mangifera indica. Identification was performed by sequence analysis of the concatenated β-tubulin gene regions. Sequencing of the PCR product confirmed this pathogen was Ceratocystis fimbriata sensu stricto. This is the first report of C. fimbriata causing sudden death disease in M. indica in Indonesia.
ENDOPHYTIC TESTING OF Serratia marcescens strain NPKC3_2_21 AGAINST INPARA 3 RICE VARIETY Gunawan Sutio; Iskandar Iskandar; Lilik Tri Indriyati; Gunawan Djajakirana
BIOVALENTIA: Biological Research Journal Vol. 9 No. 1 (2023)
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.9.1.2023.372

Abstract

Pest management is a crucial concern, especially when dealing with insect pests that can cause extensive damage to agricultural crops and the economy. One such pest is the rice stem borer (Scirpophaga innotata), which infests rice stems and poses a significant threat. To combat these pests, various microbial agents have been developed for effective pest control. Among these, the endophytic microbe in biological plant protection plays a key role in the program of sustainable pest management. An endophytic bacterium, Serratia marcescens strain NPKC3_2_21, has been identified as a key player in sustainable pest management, particularly in rice crops. In this study, we aimed to investigate the endophytic characteristics of S. marcescens strain NPKC3_2_21 in the swamp rice plant of the Inpara 3 variety of swamp rice plants. To establish its roles. Marcescens as an endophytic bacterium in rice plants, specifically the Inpara 3 variety, we conducted tests by inoculating bacteria on the plant tissue of rice plants that have been sterilized rice plant tissues with the bacteria. We assessed the presence of S. marcescens strain NPKC3_2_21 in plant tissues by applying isolates to the surface of rock wool, which supported the growth of wet rice plants aged ten or over ten days or older after planting. Samples were collected from the underside of the stem, the bottom of the leaves, and the roots on days 2, 7, and 14 after the application of isolates to the rock wool. The samples were then washed in 70% alcohol and 4% chlorox for 30 seconds and subsequently isolated on Luria Bertani (LB) agar media. Furthermore, we conducted tests to determine the ligninolytic, cellulolytic, and proteolytic activities of S. marcescens, which helped elucidate its endophytic ability. Based on the result, the endophytic capabilities. Based on the results, we found that S. marcescens strain NPKC3_2_21 exhibited endophytic characteristics solely in the stem tissue of the Inpara 3 rice variety. However, we did not observe its presence in the root and leaf tissues.
EXPENDITURE ON OIL PALM FARMERS’ HOUSEHOLDS IN BAYUNG LENCIR SUBDISTRICT MUSI BANYUASIN REGENCY Khosy Khoirunnisa; Riswani Riswani; Lifianthi Lifianthi
BIOVALENTIA: Biological Research Journal Vol. 9 No. 1 (2023)
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.9.1.2023.379

Abstract

The profitable business potential of palm oil entices the community and the Indonesian Government to develop it. It makes palm oil farming as a major source of farmers’ livelihood. However. oil palm plantations confront a number of challenges. including unstable prices and production. This will affect the household income obtained by farmers. The aim of this research is to examine the characteristics of oil palm farming. such as production costs. revenues and income as well as the proportion of household expenditure devoted to food and non-food consumption. This study was carried out in Bayung Lencir District. Musi Banyuasin Regency. South Sumatra Province. The disproportionate random sampling was used to acquire data from 90 respondents who are independent oil palm farmers. The depth interview method was used to acquired data. According to the findings. oil palm farmers’ income was IDR. 122,143,547/cultivation area/year or IDR. 10,178,629/cultivation area/month. The annual household income of oil palm farmers derived form on farm income other than oil palm, off farm income and non-farm income. The proportion of household expenditure for food consumption was 26.30%. while the proportion for non-food consumption was 73.70% and indicating that oil palm farming households are classified as prosperous since there is IDR. 1.015.871/month to be saved.
PROPAGATION OF Cnidoscolus aconitifolius USING STEM CUTTINGS AT DIFFERENT MATURITY STAGES AND GROWING MEDIA Fitra Gustiar Mashadi; Benyamin Lakitan; Dedik Budianta; Zaidan P Negara; M. Umar Harun; Susilawati Susilawati; Straiker Ali Muda
BIOVALENTIA: Biological Research Journal Vol. 9 No. 1 (2023)
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.9.1.2023.382

Abstract

Chaya leaves (Cnidoscolus aconitifolius (Mill.) I.M. Johnst.) are leafy vegetables that contain many vitamins and minerals. Information about the intensification of chaya cultivation is still rare. Chaya propagated by stem cuttings. The maturity level of stem cuttings and planting media were expected to affect the success of plant propagation. This study aims to determine the maturity level of cuttings material that can grow well and deter-mine the type of media that can support the growth of chaya propagation. This research has been carried out from July to October 2022 in an off-campus experimental outdoor facility located in Inderalaya, South Suma-tra. This study was conducted using a randomized block design with 2 factors. The first factor was the level of maturity of stem cuttings material (upper, middle, and basal), and the second factor was the type of growing medium (control, chicken manure, and cow manure). The results showed that the use of cuttings from the mid-dle and basal has a better percentage of growth ability than the upper cuttings. Chaya plants used basal stem cuttings exhibited slower shoot grow but produced higher number of leaves, greater leaf area, canopy area, and biomass. The use of cow manure in a mixture of growing medium gave the best results on growth of chaya plants.
ARTIFICIAL SHADE ADAPTATION AND POPULATION DENSITY ON SWISS CHARD (Beta vulgaris subsp. Cicla (L) W.D.J Koch) IN URBAN AR-EA Rofiqoh Ria; Benyamin Lakitan; Firdaus Sulaiman; Yakup Yakup; Zaidan P Negara; Susilawati Susilawati
BIOVALENTIA: Biological Research Journal Vol. 9 No. 1 (2023)
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.9.1.2023.384

Abstract

Swiss chard is a leafy vegetable that is high in nutrients, vitamins, minerals, protein, and antioxidants that are beneficial to human health. Swiss chard. Swiss chard is generally cultivated in the Mediterranean climate, grows well in full sunlight, air temperatures 14-21oC, and can still survive at temperatures close to light frost. The aim of this study to evaluate efficient plant densi-ties in urban limited land area and looking at the response of Swiss chard plant to reduc-ing the intensity of sunligt of 45%, 55% and 80%.in urban tropic area. This research was used 4 different artificial shading i.e 0% (control, shade 45%, shade 55% and shade 80%. Microclimate was measured per each shade for 14 days i.e., air temperatur, soil temperature, air humidity, and soil moisture using a data logger meter. Shade with intensity 80% is proven to reduce air temperate and soil temperature, but also inhibits the growth and development of Swiss chard plants. Population 1plant/pot gives the best growth and yield of Swiss chard per plant, 3 plants/pot increased total fresh weight per cultivation area, thereby maximize the use of limited urban land
COMMUNITY-BASED RAPID BIODIVERSITY ASSESSMENT: A PRELIMINARY STUDY IDENTIFYING POTENTIAL NATURAL RESOURCES IN KOTA AGUNG UTARA SOCIAL FORESTRY, TANGGAMUS Elly Lestari Rustiati; I Gede Swibawa; Jani Master; Alvin Wiwiet Susanto; Rendi Hasarudin; Joko Suprianto; Supriyadi Supriyadi; Edi Edi; Tugino Tugino; Andi Aryandinata; Dian Neli Pratiwi; Indra Kurniawan; Okta Saputra; Intan Diani Fardinatri; Mariman Mariman
BIOVALENTIA: Biological Research Journal Vol. 9 No. 1 (2023)
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.9.1.2023.389

Abstract

Community-based rapid biodiversity assessment has been done initially with Gapoktanhut Lestari Sejahtera, a group of coffee farmers practises social forestry in protected forest, Sedayu, Semaka, Tanggamus, under supervision of KPH Kotaagung Utara, Tanggamus.   Its aim is to identify potential natural resources in Kotaagung Utara protected forest, Tanggamus, under Kaidenren Nature Conservation Fund, in collaboration with University of Lampung and Rainforest Alliance program. Direct survey and observation were done, kobotoolbox was applied to collect the biodiversity information, the direct and indirect data of plants, animals as well as landscapes.  Of 480 data input has been done by transect line from November, 2021 to February, 2022 covering 15 observed areas.  The data consists of direct and indirect data of plants, animals as well as landscapes. The finding done is by local names included plants (n=78) mostly understory plant species, orchids, and ferns, small animals (n=40) include amphibians, reptiles, birds, and arthropods, indirect signs (n=11) of food remains, footprints, voices, scraps, wallowing ponds, scratches, nests, insects body remains, eggs and animals’ trail, some fungi, and landscapes. The findings shows that local community is potential citizen research resources, supporting social forestry practice and the initial building of Kota Agung Utara Forest Management Unit database
The Arthropods Diversity in Chili (Capsicum annum L.) Cultivation in Pagaralam, South Sumatra: Arthropods Diversity in Chili (Capsicum annum L.) Cultivation in Pagaralam, South Sumatra proteksi, Arsi; Gunawan, Bambang; Pratama, Rahmat Pratama; Gustiar, Fitra; Suparman; Hamidson, Harman Hamidson; Pujiastuti, Yulia Pujiastuti; Umayah, Abu Umayah; Tricahyati, Titi Tricahyati; Pradiefta, Muhammad Rafii Pradiefta
BIOVALENTIA: Biological Research Journal Vol. 10 No. 1 (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.10.1.2024.371

Abstract

Red chili (Capsicum annuum L.) is one of important types of vegetables and also has many varieties that have distinctive colors and shapes, chili is also considerd as one of vegetable that has high economic value. Chili is usually consumed in from of fresh, dried and processed as vegetables and also seasonings, in addition to functioning as a food flavor enhancer. Many obstacles faced by farmers in chili cultivation are plant disturbing organisms such as pests and diseases. Some important pests that commonly attack chili plants are fruit flies (Bactrocera spp), armyworms (Spodoptera litura) and aphids (Aphis gossypii). The purpose of this field practice was to determine the diversity of arthropods and the intensity of pest attacks in Pagaralam City on ten chili fields with different ages. This field practice is expected to provide information about arthropod diversity and attack intensity, especially to farmers as the main actors in agriculture. This insect observation method is carried out using the Diagonal sampling method, Scan sampling (Visual observation) and observing the intensity of the attack. The results of the observations obtained are that the chili farmers have carried out the concept of integrated pest management, but they are not aware of it, and the pests obtained in the field are fruit flies (Bactrocera spp), armyworms (Spodoptera litura) and aphids (Aphis gossypii), and for arthropod diversity it varies on each land.
ACCUMULATION OF HEAVY METAL IN CHINESE WATERCHEST-NUT (Eleocharis dulcis Burm.f.) Trin. Ex Hensch.) IN PHYTOREMEDIA-TION OF COAL ACID MINE WATER ON CONSTRUCTED WETLANDS. Juswardi, Juswardi; Tanzerina, Nina; Junaidi, Endri
BIOVALENTIA: Biological Research Journal Vol. 9 No. 2 (2023)
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.9.2.2023.375

Abstract

The coal open mining is an activity that has an impact on the environment, including acid mine drainage (AMD). The management of AMD can be done by phytoremediation using Chinese Waterchestnut (Eleocharis dulcis Burm.f.) Trin. ex Hensch.) on system of constructed wetlands (CWs). So the research was carried out with the aim of evaluation the accumulation of heavy metals iron (Fe) and Manganese (Mn) which were absorbed in E. dulcis in constructed wetlands system at WTP Air Laya PT. Bukit Asam. The accumulation of Fe in the roots of E. dulcis was 986.42 ppm (w/w) while the accumulation of Fe in the leaves was 392.22 ppm (w/w). The accumulation of Mn in the roots of E. dulcis was 24.49 ppm (w/w), while the accumulation of Mn in the shoots was 96.83 ppm (w/w). E. dulcis is known to have the potential to increase AMD pH and reduce levels of Fe, Mn and SO42- so that it can meet the quality standards of coal mining activity wastewater. The accumulation of Fe and Mn in the roots and shoots of E. dulcis and on AMD can be used as an effort to monitor the success of AMD phytoremediation on Constructed Wetlands system at WTP Air Laya.
Participatory fecal collection on wild sumatran elephants' dungs in South Sumatra: The significant role of community involvement Pratiwi, Dian Neli; P. Haryanto, Sugeng; Yanti, Yulianti; Arum, Setiawan; Samsul , Bakri; Winda, Indriyanti; Elly Lestari, Rustiati
BIOVALENTIA: Biological Research Journal Vol. 10 No. 1 (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.10.1.2024.381

Abstract

Sumatran elephant Elephas maximus sumatranus is a critically endangered species under pressure of habitat fragmentation and human-elephant conflict (HEC) such as in one plantation and/or settlement area next to its natural habitat, Simpang Tiga Abadi, Selapan, South Sumatera.  Due to HEC, local people may experience economic loss and human casualty. Simpang Tiga Abadi is avillage, especially 5 sub-settlements directly close to the production forest area of PT. Bumi Khatulistiwa Mandiri, which is the natural habitat of sumatran elephants. The communities collaborated and company were formed an elephant watch group to monitor and deter sumatran elephants from entering plantation areas and settlements. On the other side, sumatran elephants entering the plantation may give some conservation support as indirect conflict mitigation approaches.   A non-invasive sampling can be done by gathering information on its fecal based genetic diversity and may become one of supporting sumatran elephant conservation efforts.   Under the Center for Applied Science Studies, Sriwijaya University project: "Genetic analysis of the sumatran elephant sub-population in its  habitat pocket in Sugihan- Simpang Heran, South Sumatra", Tropical Forest Conservation Action (TFCA) cycle VIII project, the significant role of local community affected by HEC on gathering information and fecal samples of sumatran elephant entering the PT.   Bumi Khatulistiwa Mandiri plantation was conducted.   Sumatran elephants’ fecal sampling involved the local communities affected by HEC. Its aim is to value the significance of local people’s involvement in finding and collecting dung left by wild sumatran elephants during entering both plantation areas. Data on areas were recorded, and its dung samples were collected for molecular analysis.  Collecting information and mapping the entry points of sumatran elephants were done supported by the Simpang Tiga Abadi community, consisting of sumatran elephant’s entry points, dung presence, individual numbers, and group activities, as well as the damage. Eighteen fecal samples of 5 entry points were collected in 5 days. By doing the assistance, the local communities learnt the benefits and important value of sumatran elephant and its dung.   This research is the first local communities’ indirect step in efforts to conserve sumatran elephants in Simpang Tiga Abadi Village, Selapan, South Sumatra.
IMPROVEMENT OF SEED VIABILITY AND VIGOR OF SEVERAL RICE VARIETIES WITH VARIOUS PRIMING METHODS Putri, Sheila Izdihar Hendra; Suwignyo, Rujito Agus; Negara, Zaidan Panji; Sulaiman, Firdaus; Irmawati, Irmawati
BIOVALENTIA: Biological Research Journal Vol. 9 No. 2 (2023)
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.9.2.2023.392

Abstract

Rice serves as Indonesia's main food source, but inadequate storage conditions can lead to seed deterioration and diminished germination performance. To enhance the viability and vigor of stored seeds, this study explores various priming methods' effects on multiple rice varieties. Employing a completely randomized design (CRD) with two factors, the first factor involves rice varieties (V) categorized by germination ranges: 41–50% (V1 = Toyonishiki, V2 = Yoneshiro), 51–60% (V3 = Jaya, V4 = IR50), 61–70% (V5 = Fortuna, V6 = Sulutan), and 71–80% (V7 = IR 24, V8 = Inpago 5). The second factor is seed priming (P), including control, hydropriming, and osmopriming. Results indicate that priming enhances maximum growth potential, germination percentage, vigor index, growth speed, plumule and radicle length, as well as fresh and dry weight. Hydropriming outperforms osmopriming, particularly in vigor index, growth speed, plumule and radicle length, and dry weight. Priming proves more effective in improving maximum growth potential, germination percentage, vigor index, and growth speed at lower germination percentage ranges (41–60%). The most significant priming-induced increases in radicle length, fresh weight, and dry weight occur in higher germination percentage ranges (61–80%)

Page 14 of 18 | Total Record : 178

 12   13   14   15   16 

Filter by Year

2015 2025


Reset
Filter By Issues
All Issue Vol. 11 No. 2 (2025) Vol. 11 No. 1 (2025) Vol. 10 No. 2 (2024) Vol. 10 No. 1 (2024) Vol. 9 No. 2 (2023) Vol. 9 No. 1 (2023) Vol. 8 No. 2 (2022) Vol. 8 No. 1 (2022) Vol. 7 No. 2 (2021) Vol. 7 No. 1 (2021) Vol. 6 No. 2 (2020) Vol. 6 No. 1 (2020) Vol. 5 No. 2 (2019) Vol. 5 No. 1 (2019) Vol. 4 No. 2 (2018) Vol. 4 No. 1 (2018) Vol. 3 No. 2 (2017) Vol. 3 No. 1 (2017) Vol. 2 No. 2 (2016) Vol. 2 No. 1 (2016) Vol. 1 No. 1 (2015) More Issue