Claim Missing Document
Check
Articles

Found 14 Documents
Search

The Effect of Mol of Rice Water Waste and Kepok Banana Peel to The Growth of Brassica rapa chinensis Yuliana, Meta; Dewi, Belia Murni; Teristiandi, Novin
EKOTONIA: Jurnal Penelitian Biologi, Botani, Zoologi, dan Mikrobiologi Vol 8 No 2 (2023): Ekotonia: Jurnal Penelitian Biologi, Botani, Zoologi dan Mikrobiologi
Publisher : Department of Biology, Faculty of Agriculture, Fisheries and Biology, University of Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/ekotonia.v8i2.4644

Abstract

MOL is fermented solution by microbes from organic ingredients such as banana peel. MOL are useful in accelerating the destruction of organic materials and can be used as organic containing NPK fertilizer . This study aims to know the effect of the mixed of rice washing water and banana peel as MOL solution to the growth of pakcoy plants (Brassica rapa chinensis) and the its best concentration. The research design used in this study was a completely randomized design (RAL) consisting of 5 treatments and 5 replications. The treatments in this study were P0 (control) P1 (10%) P2 (20%) P3 (30%) and P4 (40%). The data were analyzed using analysis of variance (ANOVA) and continued with the Duncan/DMRT test (Duncan Multipe Range Test) at a significance level of 5%. The results showed that the MOL of kepok banana peel affects the growth of pakcoy plants on certain parameters, namely wet weight, dry weight and plant root length but not for the height and number of leaves. P2 treatment(20%) showed the best results.
THE INFLUENCE OF PHYSICOCHEMICAL PARAMETERS ON THE ABUNDANCE OF MACROZOOBENTHOS IN KUNGKILAN RIVER, SOUTH SUMATERA Teristiandi, Novin; Yuliana, Meta
Jurnal Bioteknologi & Biosains Indonesia (JBBI) Vol. 12 No. 1 (2025)
Publisher : BRIN - Badan Riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/jbbi.2025.11244

Abstract

Macrozoobenthos are effective bioindicators for assessing freshwater ecosystem health. This study examines the influence of physicochemical parameters and spatial-temporal variation on macrozoobenthic abundance in the Kungkilan River, South Sumatera. Sampling was conducted at upstream, midstream, and downstream sites. Generalized Linear Mixed Model (GLMM) analysis revealed that water depth and transparency had significant positive effects, while iron (Fe) in sediment had a negative effect. Random effects analysis showed that site-level variability (variance = 0.680) was far greater than temporal variability, indicating that spatial differences—especially in the midstream zone—were the dominant drivers of community structure. These findings highlight the importance of localized conservation efforts and reinforce the role of macrozoobenthos as reliable indicators of river health in tropical ecosystems.
THE ABUNDANCE OF ANTS (FORMICIDAE) IN COFFEE PLANTATIONS OF MERAPI, LAHAT DISTRICT Teristiandi, Novin; Yuliana, Meta
Jurnal Bioteknologi & Biosains Indonesia (JBBI) Vol. 12 No. 2 (2025)
Publisher : BRIN - Badan Riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/jbbi.2025.14455

Abstract

Ants are widely used as ecological indicators in agricultural landscapes, yet community responses can vary across local environmental gradients. This study assessed ground-active ant assemblages in coffee plantations in Merapi, Lahat (South Sumatra, Indonesia) at sites categorized as near versus far from a coal-mining area, using pitfall traps and community-level metrics. Mean temperatures during sampling were nearly identical between site categories (near 30.54 °C; far 30.56 °C). Ant assemblages showed contrasting patterns in richness and abundance: far sites contained six taxa but a lower total number of individuals (117), while near sites contained three taxa but higher total abundance (209). Species composition differed markedly, with far sites dominated by Solenopsis invicta and near sites dominated by Leptogenys sp. and Myopias emeryi. Diversity indices reflected these patterns: Shannon diversity was higher far from the mine (0.8906) than near (0.7215), while Simpson dominance was slightly higher far (0.5607) than near (0.5219), and evenness was higher near (0.6567) than far (0.4971). These findings indicate an association between distance class and ant community structure in coffee plantations, characterized by higher richness but stronger dominance at far sites and higher abundance but lower richness at near sites; however, conclusions about mining impacts should remain cautious given the observational design.
THE ABUNDANCE OF ANTS (FORMICIDAE) IN COFFEE PLANTATIONS OF MERAPI, LAHAT DISTRICT Teristiandi, Novin; Yuliana, Meta
Jurnal Bioteknologi & Biosains Indonesia (JBBI) Vol. 12 No. 2 (2025)
Publisher : BRIN - Badan Riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/jbbi.2025.14455

Abstract

Ants are widely used as ecological indicators in agricultural landscapes, yet community responses can vary across local environmental gradients. This study assessed ground-active ant assemblages in coffee plantations in Merapi, Lahat (South Sumatra, Indonesia) at sites categorized as near versus far from a coal-mining area, using pitfall traps and community-level metrics. Mean temperatures during sampling were nearly identical between site categories (near 30.54 °C; far 30.56 °C). Ant assemblages showed contrasting patterns in richness and abundance: far sites contained six taxa but a lower total number of individuals (117), while near sites contained three taxa but higher total abundance (209). Species composition differed markedly, with far sites dominated by Solenopsis invicta and near sites dominated by Leptogenys sp. and Myopias emeryi. Diversity indices reflected these patterns: Shannon diversity was higher far from the mine (0.8906) than near (0.7215), while Simpson dominance was slightly higher far (0.5607) than near (0.5219), and evenness was higher near (0.6567) than far (0.4971). These findings indicate an association between distance class and ant community structure in coffee plantations, characterized by higher richness but stronger dominance at far sites and higher abundance but lower richness at near sites; however, conclusions about mining impacts should remain cautious given the observational design.