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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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ANALYSIS OF FACTORS AFFECTING FARMING PRODUCTIVITY OF RAWA LEBAK RICELAND BASED ON LAND TYPOLOGY IN GANDUS DISTRICT, PALEMBANG CITY Novayanti Yusni; Laila Husin; Dwi Wulan Sari
BIOVALENTIA: Biological Research Journal Vol. 8 No. 2 (2022)
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.8.2.2022.307

Abstract

Most of the paddy fields in the city of Palembang are rawa lebak land that scattered on the banks of the Musi River. One of the centers of rawa lebak rice in Palembang City is in Gandus District, which has an area of 1,017,255 hectares of rawa lebak rice fields.  The productivity of rawa lebak rice in Gandus District (4.4 tons/ha) is still lower than the average productivity of South Sumatra Province (4.975 tons/ha) and national (5.13 tons/ha). The purpose of this study was (1) to analyze the factors that influence rice production in rawa lebak rice farming in three typologies, namely  shallow, middle, and deep rawa lebak land, and (2 ) to analyze the efficiency of the use of rice production factors in rawa lebak rice farming in three typologies of rawa lebak land. The research was conducted in Gandus District, Palembang City. Sampling used purposive sampling method and taken as many as 93 farmers, consisting of 31 farmers in each rawa lebak typology.  The analysis used is a Cobb-Douglass model regression and t-test to determine the effect of production factors, and efficiency analysis to determine the efficiency of the use of production factors. The results showed that (1) The production factor of urea and NPK fertilizers had a significant affect on farming productivity in all   typologies of rawa lebak land.  Land area, seed, and pesticide factors had no significant effect on farming productivity  in all typologies of rawa lebak land. Meanwhile the labor factor had a significant effect in middle and deep rawa lebak land, but had no significant effect in shallow rawa lebak land.(2) The production factors of land area and seeds are inefficient in all land typologies. The production factor of urea  and NPK fertilizer has not been used efficiently in all land typologies. The use of pesticide factor is inefficient in the middle and deep rawa lebak land, while the use of labor is inefficient in the shallow and deep rawa lebak land.
BIOLOGY OF Pentalonia nigronervosa COQUEREL ON VARIOUS ZINGIBERACEOUS CROPS Rizki Anwar Efendi; Suparman SHK; Harman Hamidson
BIOVALENTIA: Biological Research Journal Vol. 8 No. 2 (2022)
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.8.2.2022.308

Abstract

Pentalonia nigronervosa Coquerel (Hemiptera; Aphididae) is the main vector of banana bunchy top disease caused by Banana Bunchy Top Virus (BBTV). The disease is an important and most damaging disease to the crop because infected bananas fail to produce fruits. As the vector of BBTV, P. nigronervosa is able to lives not only on banana plants but also on others plants, especially those belong to Family Zingiberaceae. The objective of this research was to reveal the biology of P. nigronervosa on banana and other plant species belong to Family Zingiberaceae commonly found around banana cultivation areas. The research was conducted in the Laboratory of Entomology, Department of Plant Protection, Faculty of Agriculture, Sriwijaya University from June to December 2021. The research was an experimental research arranged in a Completely Randomized Design using plant species as treatment and was replicated 10 times of replications. Young suckers of banana and zingiberaceous plants were used to rear the banana aphid where all biological aspects of the aphid were observed. P. nigronervosa and the young suckers were placed in a transparent pot covered with transparent plastic with a window made from cheese cloth to facilitate air movement. Room temperature was set to approximately 25oC since the aphid grow and reproduce well under such temperature. The results showed that P. nigronervosa are able to live and reproduce not only on banana but also on seven species of Zingiberaceous plants with little variation of some morphological and biological parameters. The significant different was found between biological characteristics of the aphid lived on torch ginger and cardamom which had longer life cycle but smaller fecundity compared to other experimental hosts used in the research.
ETHNOBOTANICAL STUDY OF PANDANACEAE BY THE BESEMAH TRIBE, LAHAT DISTRICT, SOUTH SUMATERA PROVINCE Nina Tanzerina; Harmida Harmida; Dwi Apriliani
BIOVALENTIA: Biological Research Journal Vol. 8 No. 2 (2022)
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.8.2.2022.185

Abstract

The research entitled Ethnobotanical study of Pandanaceae by the Besemah tribe in Lahat Regency, South Sumatra has been conducted form October 2018 to December 2019. The objective of the research were to inventory the species diversity of Pandanaceae and its traditional utilization by the local ethnic in the studied area. The research was conducted by  using survey method and field work to collect plant samples.  The   basic data of ethnobotany was collected by using  direct interview from respondents. The result showed that there were six (6) species of Pandanaceae such as;  Pandanus lais Kurz, Pandanus helicopus Kurz, Pandanus amaryllifolius Roxb. (two varieties; “large and small” size fragrant pandanus), Benstonea atrocarpa Griff, Benstonea affinis Kurz. and Freycinetia rigidifolia Hemsl. 71,4% of them were belonged to wild species and 28.8% were cultivated species. The trdaitional utilization of Pandanaceae was used for handycrafft (36.4%), building material (9,1%), medicinal & cosmetic ingredients, foodstuffs and customary materials (18.2% each). The Baeemah tribe was used leaves (75%) rather than other part of plant.
MORPHOLOGICAL CHARACTERS OF FRESHWATER STINGRAYS (CHONDRICHTHYES: DASYATIDAE) IN MUSI RIVER, PALEMBANG CITY, SOUTH SUMATERA PROVINCE Amran Halim; Hilda Zulkifli; Yuanita Windusari
BIOVALENTIA: Biological Research Journal Vol. 8 No. 2 (2022)
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.8.2.2022.225

Abstract

A study to determine morphological characets of freshwater stingray in Musi River of South Sumatra Province has been conducted from June to December 2020. The fishes were collected in Musi River where located at middle of Palembang city. Collected specimens were preserved to Animal Ecology Laboratory, Department of Biology, Faculty of Mathematic and Natural Science of Sriwijaya University. There are four species of freshwater stingrays collected, Fluvitrygon oxyrhyncha. Fluvitrygon kittipongi. Fluvitrygon signifer, and Fluvitrygon sp ‘musi’ 2. The results of the measurement of morphometric and morphological characteristics showed that there were differences in size and morphological characteristics of the types of fish found, indicating that stingray had different size ranges.
ANTIBACTERIAL ACTIVITIES OF CIHERANG RICE (Oryza sativa L. Var. Ciherang) ETHANOL EXTRACT AGAINST Enterotoxigenic Escherichia coli (ETEC) Dinda Sari; Bening Fitri Rini; Alifia Anisya; Feby Oktavia; Ali Zainal Abidin; Marieska Verawaty
BIOVALENTIA: Biological Research Journal Vol. 8 No. 1 (2022)
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.8.1.2022.239

Abstract

Enterotoxigenic Escherichia coli (ETEC) is one of the most common bacteria that cause a large number of diarrhea in infants, children and adults living in developing countries. Potential activity of Ciherang rice’s (Oryza sativa L. var. Ci-herang) leaves’ extract as antibacterial agent against the ETEC was investigated in this research. The secondary metabolite was extracted, its antibacterial activity, and its minimum inhibitory concentration (MIC) against the ETEC were determined. This study indicated the leaf extract of Ciherang rice in the ethanol fraction contained tannins, saponins, flavonoids, alkaloids, and terpenoids. It showed strong antibacterial activity against ETEC (at concentration of 100%); the extract activity test had diameter of inhibition zone around 11.12 mm with MIC value of 11.12 mm. This study suggested the ethanol leaf extract at various concentrations showed significant effect (p<0.05) toward the diameter of the inhibition zone. The Ethanol leaves extract of Ciherang rice at 100% of concentration has a MIC value of 11.37 mm.
THE EFFECT OF SOME ATTRACTIVE MEDIA ON THE NUMBER OF MARRIAGE PARTNERS, EGGS WEIGHT AND LIFETIME OF BLACK SOLDIER FLY (Hermetia illucens L.) Syafrina Lamin; Arfan Abrar; Arwinsyah Arwinsyah; Mustafa Kamal; Agnes Novita Sipahutar
BIOVALENTIA: Biological Research Journal Vol. 8 No. 2 (2022)
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.8.2.2022.243

Abstract

The black soldier fly (BSF)  Hermetia illucens L.(Diptera:Stratiomyidae) is widely used in biorecycling organic waste has gained huge populatarity in different  industrial. And commercial sector  becouse of its excellent potential to treat organic waste and high biomass production.  The obstacle experienced during the rearing process was that a small number of eggs were obtained, therefore efforts were made to increase the black soldier fly population by providing bait in the form of attractants.  Media bait technique in the form of several media with a specific and pungent aroma, so that it will lure BSF females to mate, lay eggs, extend life time. The present study deal to investigation of different number of mating pairs, eggs weight dan lifetime as function respon of different lure media.This study used a completely randomized design (CRD) with (1) cassava tape, (2) Fermented bran (3) rotten pineapple (4) rotten banana media with each treatment repeated 6 times with the variables observed were the number of mating pairs of fly (per day), egg weight, and life span of imago.  each attractant medium had an effect on the number of mating females, the weight of the eggs laid and the length of life of BSF. The best medium was rotten pineapple media (number of mating pairs 55 pairs of BSF, and egg weight laid 0.007 per day) while the worst medium was fermented bran media with a long life (10.9 days)
MACROFUNGI INVENTARITATION AT THE PINE FOREST OF KRAGILAN, MAGELANG Nita Noviyanti; Wahyu Aji Mahardhika; Arina Tri Lunggani; Ivan Permana Putra
BIOVALENTIA: Biological Research Journal Vol. 8 No. 2 (2022)
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.8.2.2022.248

Abstract

The pine forest of Kragilan village, Magelang, is a forested area on the west slopes of Mount Merbabu with a humid environmental condition. The conditions make this region suitable for the growth of a macrofungal community. The macrofungal inventory in Merbabu Mountain is very limited and this is inversely proportional to the increasing deforestation. Thus, the macrofungal inventory is a fundamental way of managing natural conservation in this area. The study aimed to provide information and the potency of macrofungi found in the pine forest area of Kragilan, Magelang. The method used is purposive sampling in the research area, and the fungi obtained were identified based on characteristics with some related references. This research described eight species of eight different genera, including one from the Ascomycota (Xylaria sp.), and seven others from the Basidiomycota (Auricularia auriculajudae, Lentinellus sp., Mycena sp., Skeletocutis sp., Gymnopilus sp., Coprinopsis sp., and Coprinellus disseminatus). The current study is the first report on macrofungi diversity in the research area. Further exploration is still needed to record the macrofungal diversity on the western slopes of the Kragilan pine forest.
POTENTIAL DIVERSITY OF WATER ORGANISM AND WATER QUALITY OF THE LEBAK LEBUNG SWAMP ECOSYSTEM FOR FISHERIES IN RANTAU BAYUR DISTRICT, BANYUASIN REGENCY Aisyah Fatriani; Hilda Zulkifli; Mochamad Syaifudin; Mohammad Rasyid Ridho; Dade Jubaedah
BIOVALENTIA: Biological Research Journal Vol. 8 No. 2 (2022)
Publisher : Biology Department, Faculty of Mathematics and Natural Sciences, Sriwijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The abundance and diversity of aquatic organism and fish in Lebak Lebung Kemayan and Lebak Lebung Tudakan in Rantau Bayur District and their relationship to water quality in both of Lebak Lebung were researched in November 2021. The method used in determining the sampling location was "Purposive Sampling." Direct measurements in the field and sampling were carried out at station I, station II and station III in the two waters of Lebak Lebung. The results of the water quality analysis showed that the condition of the Lebak Lebung Kemayan and Lebak Lebung Tudakan swamp waters was classified as suitable for fishing activities (Government Regulation No. 82 of 2001). The average value of plankton and benthic diversity index was 2.34 and 1,86, the average uniformity index value was 0,85 and 0.95 (high) with a dominance index of 0.14 and 0.18 which indicated that there were no dominating plankton species and benthic. The value of the nekton diversity index ranges from 1,68-1,87 (average), the uniformity index value was between 0,47-0,73 (average-high) with a dominance index of 0,21-0,49 with the criteria that there were no dominating species nekton at this location. The results of the land suitability evaluation that waters Lebak Lebung in Rantau Bayur District are very suitable for fishing activities
STUDY OF EFFECTIVITY Bacillus thuringiensis BASED BIO-INSECTICIDE AGAINST Oryctes rhinoceros LARVAE AT SHADE HOUSE Yulia Pujiastuti; M Ridwan; H Saputra; M Agusrafil; A Nurnabila; Henny Hendarjanti
BIOVALENTIA: Biological Research Journal Vol. 8 No. 2 (2022)
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.8.2.2022.312

Abstract

Oryctes rhinoceros is an important pest in oil palm plantations. Adult stage of the beetle causes damage, however larval stage is very important to be controlled to break the cycle of life. An entomopathogenic bacterium Bacillus thuringiensis is one of biological agents to control these insects. Its toxic protein content provides specific insect targets as stomach poison. Objectives of the research was to study the impact of B. thuringiensis propagated in bio-urine enriched with 5 per cent molasses towards Oryctes larvae. The research was carried out in the shade house of Plant Protection Study Program, Faculty of Agriculture, Sriwijaya University from August to November 2021. Experiment was designed in a randomized complete block design with 7 treatments and 4 replications. A total of 20 ml of bio-insecticide was dissolved in 280 ml of water, sprayed evenly on the soil mixed with male palm flowers as feed of larvae. The treatments were 6 isolates of B. thuringiensis isolated from soil in oilpalm plantation, namely with codes: C14, C15, A15, OJ, BK, and LK as well. The results showed density of B. thuringiensis spores in bio-urine media was different in each isolate. The highest spore density in isolate code LK was 4.83 x 1010 spores/ml and the lowest (in isolate A15) was at 3.5 x 1010 spores/ml. Mortality rates were significantly different between isolate treatments starting from day 3 to day 12 of observation. C15 isolate lead the highest mortality rate of 100% on day 12 while other isolates showed mortality data below 100% (88-98%). Body weight and length showed significantly differences on days 0, 6 and 12 after application. Symptoms of infection begin with a change in skin color from white to brown, dark brown and black. Death is characterized by a soft body texture and wet rot.
CORRELATION BETWEEN FARMER'S RESPIRATORY HEALTH AND INDOOR AIR QUALITY IN PULOKERTO AND SUNGAI REBO WETLAND AREA Beby Yohaningsih; Tan Malaka; Novrikasari Novrikasari
BIOVALENTIA: Biological Research Journal Vol. 8 No. 2 (2022)
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.8.2.2022.316

Abstract

Wetland areas have humid temperatures and residential development will have a major effect on the air quality in the room which becomes humid and humid room air can cause several symptoms of respiratory disorders caused by airborne. This research was conducted in 35 farmer's houses which aims to determine the relationship between the respiratory health of farmers with air quality in the farmhouse and obtained results that are not related to the respiratory health of farmers with air quality in the room, where P>0.05 and there is one house that has good quality. high physical conditions such as humid temperatures and high chemical quality of the air due to storing tools and plowing fields at home with a fairly high number of bacteria and fungi.

Page 12 of 18 | Total Record : 178

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