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Enggar Patriono
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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
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EFFECTIVENESS PRUNING AND PLANTING MEDIA ON THE MORPHOLOGY AND RESULTS OF FLOATING RED CHILIES Aprilia, Sherina Eka; Susilawati, Susilawati; Hermawan, Agus
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.9.2.2023.400

Abstract

Horticultural commodities hold significant economic potential in Indonesia, particularly red chilies, which serve various purposes such as a spicy,traditional spicy, and industrial raw material. This research aims to assess the impact of shoot pruning and planting media composition on the morphology and yield of red chili plants. The study employed a Randomized Factorial Group Desugn (RAKF) with two main treatments : shoot pruning and planting medium composition. Results indicate that pruning shoots at 35 days after planting (P4) enhances the cultivation of red chili plants, as evidenced by improved plant height, earlier flowering, and increased root length. Furthermore, a planting medium composed of soil, cow dung compost, and 2:1:1 husk charcoal (M4) proves to be more beneficial for red chili yield, demonstrated by higher plant height, stem diameter, and root length.
CHARACTERISTICS OF SHALLOTS (Allium ascalonicum L) INFLUENCED BY SULFUR APPLICATION IN FLOATING CULTIVATION. Novikar Saputra Idly; Susilawati; Suwandi, Suwandi
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.9.2.2023.401

Abstract

Floating agricultural cultivation presents a viable solution for cultivating in water-rich regions. Among the crops suitable for this system is shallot (Allium ascalonicum L.). This study aimed to assess the effectiveness of sulfur application on shallot plant characteristics (Allium ascalonicum L.) in floating cultivation. Conducted in May 2023 at the Faculty of Agriculture's research pond, Sriwijaya University, the research employed a completely randomized design with sulfur applications (S1: 0 kg ha-1, S2: 30 kg ha-1, S3: 60 kg ha-1, S4: 120 kg ha-1, S5: 240 kg ha-1). Results revealed that tuber diameter exhibited strong determination values (R2: 75%), leaf length, number of leaves, and number of tillers exhibited moderate determination values (R2: 51%, 57% and 56%, respectively), while the relative growth rate showed a weak determination value (R2: 40%). The 60 kg ha-1 sulfur treatment demonstrated the highest chlorophyll content.
EFFICACY OF SINGLE AND MIXED HERBICIDES ON THE GROWTH AND YIELD OF CORN (Zea mays L.) PLANTS ON DRY LAND Nopit, Nopit Yohanes; Yakup, Yakup; Harun, M Umar
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.9.2.2023.402

Abstract

The Indonesian Government's efforts to enhance Human Resource (HR) quality include ensuring adequate food production, purchasing power, access, and nutritional intake. This study aims to assess the impact of single and mixed herbicides on corn plant growth and yield. Employing a Randomized Block Design (RBD) with eight treatments replicated three times, the research was conducted from February to June 2023 at the Farmer's Gar-den. Results indicated that herbicide treatments, particularly those with atrazine + saflufenacil as the active in-gredients, demonstrated the most favorable effects on plant height at 6 WAP and 8 WAP, the number of leaves at 6 WAP, ear length, ear weight, and dry seed weight per plot. The atrazine + saflufenacil herbicide treatment had the best effect on plant height at 6 WAP and 8 WAP, number of leaves at 6 WAP, ear length, ear weight, and dry seed weight per plot.
CELLULASE ACTIVITY OF RIZOSFER BACTERIA OF KETAPANG PLANTS (Terminalia catappa L.) Rosmania, Rosmania; Widjajanti, Hary; Nurnawati, Elisa
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.9.2.2023.403

Abstract

Cellulose, a natural biopolymer produced by plants, undergoes enzymatic breakdown by cellulase, cleaving the monomer's β-1,4 glycosidic bonds. Cellulolytic bacteria, producers of cellulase, can be isolated from plant rhizospheres, like Ketapang (Terminalia catappa L.), abundantly found in the Biology Department at Universitas Sriwijaya, South Sumatra, Indonesia. This study aimed to isolate cellulolytic bacteria from Ketapang rhizosphere soil and assess their cellulase activity. The spread plate method on selective Carboxy Methyl Cellulose Agar (CMC agar) was used for bacterial isolation, and cellulase activity was measured using the DNS method (3.5-dinitro salicylic acid). Results yielded 22 isolates of cellulolytic bacteria capable of growth on selective CMC agar. Thirteen isolates, identified through a screening test, produced cellulase, forming clear zones post-addition of 0.1% Congo Red and 1 M NaCl. Cellulolytic activity indices for these isolates ranged from 0.02 to 2.6 mm. The highest indices (IAS) and cellulase activities were observed in BS10, BS4, and BS22, with IAS values of 2.64, 2.12, and 1.71, and cellulase activities of 354.99 U/ml, 9.42 U/ml, and 9 U/ml, respectively. Identification results suggested that isolate BS10 bore similarities to the genus Zoogloea, while isolates BS4 and BS22 showed similarities to the genus Bacillus.
SUITABLE SUBSTRATE VOLUMES AND CULTIVARS FOR ENHANCING GROWTH AND IN-CREASING YIELD OF YARD-LONG BEAN IN URBAN ECOSYSTEMS Rizar, Fitra Fadhilah; Lakitan, Benyamin; Wijaya, Andi
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.9.2.2023.404

Abstract

Yard-long bean, a favored vegetable known for its taste and nutritional value, holds economic importance. Its climbing nature and environmental resilience make it ideal for urban cultivation in pots and climbing frames. This study, conducted in a limited urban space, aimed to determine optimal pot size and cultivars for yard-long bean cultivation, emphasizing growth and yield. Two pot sizes were used: a larger one (30 cm diameter x 37 cm height, M1) and a smaller one (30 cm diameter x 30 cm height, M2), alongside three commercial cultivars: Kanton Tavi (V1), Camellia (V2), and Arafi (V3). Results indicated that a larger pot size increased pod number and total pod weight per plant, facilitating root development, vine growth, and enhanced yield. The larger substrate volume retained moisture and boosted plant biomass. Cultivar treatment affected branch length and flowering time, with Camellia exhibiting the longest harvest period (14 harvests). Hence, for Camellia varieties, cultivation using larger pots (30 cm diameter x 37 cm height) is recommended.
VARIETY OF BRYOPHYTES IN SULTAN ADAM MANDIANGIN GRAND FOREST PARK AREA Khairun Amalia; Ajizah, Aulia; Utami, Nurul Hidayati
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.9.2.2023.410

Abstract

Moss plants can live well in areas that have high humidity. The Dutch Guesthouse which is located in the Sultan Adam Mandiangin Forest Park area has quite high humidity because the area has lots of dense plants, so it is a suitable habitat for the living nature of moss plants. This study aims to describe and identify the types of moss found. Data collection was carried out using the total roaming method, which was then followed by determining and identifying each sample of the moss plants found. Data analysis was carried out descriptively and identifying species with reference to the literature. The results of the study found 10 species of mosses belonging to 7 different families, both found in tree, rock and soil habitats. The species found were: Calymperes tenerum, Calymperes afzelii, Hyophila apiculata, Hyophila involuta (Hook.) A. Jaeger, Ectropothecium falciforme, Octoblepharum albidum, Philonotis hastata, Acroporium secundum, Lejeunea lamacerina, and Thysananthus sp. The results of this study are expected to provide information about the variety and biodiversity of mosses in South Kalimantan.
EXPRESSION OF CASPASE 3 IN RAT LIVER CELLS BY MAXIMUM PHYSICAL EXERCISE AFTER ADMINISTRATION OF GAGATAN HARIMAU NANOHERBAL (Paraboea leuserensis B.L.Burtt) ashfira; Syafruddin Ilyas; Masitta Tanjung
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.9.2.2023.411

Abstract

This research aims to analyse Expression of Caspase 3 in Rat Liver Cells With Maximum Physical Exercise After Administration of Gagatan Harimau Nanoherbal (Paraboea leuserensis B.L.Burtt). The research was conducted in April-June 2023. The research location was the Animal Physiology Laboratory and Experimental Animal House, Department of Biology, FMIPA USU, PT. Synergy of Indonesian Nanotech, South Tangerang, Banten and the Anatomic Pathology Laboratory, Faculty of Medicine, University of North Sumatra, Medan. There were 6 treatments in the study, namely control group (K-), maximum physical exercise (K+), maximum physical exercise + Vitamin C at a dose of 2 mg/Kg Body Weight (P1), maximum physical exercise + Gagatan Harimau nanoherbal 100 mg/Kg BW (P2 ), Maximum physical exercise + Gagatan Harimau nanoherbal dose 125 mg/Kg BW (P3), Maximum physical exercise + Gagatan Harimau nanoherbal dose 150 mg/Kg BW (P4). The data obtained from each observation parameter (variable) is recorded and presented in table form. The data was then analyzed using SPSS version 25 software with significant differences determined at p<0.05. The results of the study showed significant differences between all groups (p<0.05) in the expression of caspase 3 in the liver. A dose of 150 mg/Kg BW from the nanoherbal Gagatan Harimau leaves (Paraboea leuserensis B.L.Burtt) reduced the expression of caspase 3 in rat liver. The induction of gagatan harimau leaf nanoherbal to act as an antioxidant in male rats given swimming physical training showed improvements in liver histology and morphology. The dose of 150 mg/KgBW of nanoherbal gagatan harimau leaves was the best dose because it showed cell regeneration that was close to the normal treatment group.
THE RELATIONSHIP BETWEEN THE LEVEL OF HIGHLAND HORTICULTURAL FARMERS' COMPLIANCE IN PESTICIDE APPLICATION AND THE PRESENCE OF PESTS AND DISEASES Yunanda Audri Balqis Yunanda; Suparman SHK; Chandra Irsan
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.9.2.2023.413

Abstract

Currently, many farmers are still very unfamiliar with using pesticides correctly and appropriately which lead environment pollution, population reduction of natural enemies and people health. The aims of this research were to determine the impact or influence of farmers obedience in applicating pesticide on the incidence of pests and diseases on highland horticultural cultivation, the presence of natural enemies, and level of pesticide residues in their horticultural products. This research was conducted in highland horticultural cultivation areas in Pagar Alam, South Sumatra. Data on farmers obedience in applicating pesticide was collected by interviewing eligible farmers by using questionnaires. Data on pests and disease incidence was collected by direct observation on the interviewed farmer's horticultural field. The variable measured were pest population and the in-tensity of damage of each pest, incidence and intensity of each disease and natural enemy type and population.  The relationship between the level of farmer obedience in applicating pesticide and incidence of pests and dis-ease on their respected lands was determined by calculating their correlation coefficient. The results showed that there were significant correlations between the level of farmers obedience in applicating pesticide and the incidence as well as intensity of pests and diseases of highland horticultural crops.
EVALUATION OF Bacillus thuringiensis-BASED BIOINSECTICIDE ON THE PRESENCE OF ARTHROPODS IN VEGETATIVE PHASE OF CARROT Novian Dwisatria; Yulia Pujiastuti; Chandra Irsan; Fitri Ramadhani
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.9.2.2023.414

Abstract

Synthetic insecticides are still extensively used by farmers to control insect pests in carrots. The effects of excessive use of synthetic insecticides can damage agricultural ecosystems. This research aimed to examine Bacillus thuringiensis based bioinsecticide toward arthropods existence in vegetative growth phase of carrots The research was conducted in Pagar Alam City (700 m above sea level) and a relative humidity of 48–99%. The carrot plantations studied were planted in polyculture with mustard greens and sweet corn. This study used a completely randomized design (CRD) with 3 treatments and 9 replications. The treatments were bioinsecticide B. thuringiensis; synthetic insecticide (imidacloprid 200 g/l); and no-insecticide application (control). Agronomic observations were height of carrot and their number of leaves. Arthropods observations were carried out using sweep nets, pitfall traps, and direct visual observation. The results showed there was no significantly different on height of carrot plant and their number of leaves among three applications. Arthropods population in carrot plants treated with B. thuringiensis was lower than those in control carrot plants. In pitfall trap observations, the highest number of arthropod individuals obtained was belong to order Hymenoptera and had a moderate value of the Shannon-Wiener diversity index (H'). In addition, total insect population after application of B. thuringiensis observed using nets, tended to decrease from the second observation onwards. The category of insect diversity level trapped by Pitfall trap in B. thuringiensis bioinsecticide treatment was included in the medium category (H' = 1.75), while the treatment of imidacloprid (H' = 0.85) and control (H' = 0.81) was included in the low category.
SELECTION OF ANTAGONISTIC RHIZOBACTERIA POTENTIAL FOR BIOLOGICAL CONTROL OF Fusarium oxysporum Anggit Cahyani; Harman Hamidson; Suwandi Suwandi; Abu Umayah
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.9.2.2023.416

Abstract

Fusarium oxysporum is a pathogen that causes wilt disease in many plants and can couse losses of up to fifty percent. Standard control is to use synthetic fungicides. However, continuous use of fungicides has a high environmental risk, so environmentally friendly and safe control efforts are needed. One way is by using rhizosphere bacteria or rhizobacteria. This research aims to obtain rhizobacteria isolates that can control the pathogen F. oxysporum, which causes fusarium wilt in vitro. This research was conducted from June to July 2023. The methods in this research included isolating rhizobacteria, observing the morphology of bacterial colonies, gram staining, gram reaction test, catalyst test, and in vitro antagonist test. Research data shows that of the thirty rhizobacteria isolates observed, all isolates had the potential to inhibit the growth of F. oxysporum. The KMTK2 showed the highest inhibitory ability isolate with an inhibitory ability of 73,99%, and the lowest inhibitory ability was shown by the TBA1 isolate with an inhibitory ability of 51,56%. Potential rhizobacteria isolates can suppress the growth of the pathogen F. oxysporum and can be used as a biological agent to reduce the use of pesticides in treating plant diseases.

Page 15 of 18 | Total Record : 178

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