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INDONESIA
Jurnal Biologi Tropis
Published by Universitas Mataram
ISSN : 14119587     EISSN : 25497863     DOI : -
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology
Jurnal Biologi Tropis (ISSN Cetak 1411-9587 dan ISSN Online 2549-7863) diterbitkan mulai tahun 2000 dengan frekuensi 2 kali setahun oleh Program Studi Pendidikan Biologi PMIPA FKIP Universitas Mataram, berisi hasil penelitian dan ulasan Ilmiah dalam bidang Biologi Sains.
Arjuna Subject : -
Articles 98 Documents
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Search results for , issue "Vol. 23 No. 4 (2023): October - December" : 98 Documents clear
Estimation of Variance and Heritability Components in F2 Populations of Maize (Zea mays L.) in Dry Land Amanah Aulia Adeputri; M. Taufik Fauzi; Suwardji; A. A. Ketut Sudharmawan
Jurnal Biologi Tropis Vol. 23 No. 4 (2023): October - December
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v23i4.5326

Abstract

The F2 population of maize plants that has been obtained from hybridization between NK212 and NK7328 varieties has not been suspected of genetic diversity components and heritability in the narrow sense. This study aimed to determine the magnitude of the alleged value of variety components and heritability, as well as determine the types of varieties to be formed. The experimental design used was the Group Randomized Design (RAK) - North Carrolina I (NCI) consisting of 120 treatments. The experimental setup involved 40 male parent plants, each paired with 3 female parent plants in season I, and this procedure was replicated twice, resulting in a total of 240 treatment groups. The collected data was subjected to analysis through variety analysis (ANOVA) utilizing the NCI model. The results showed that the presumptive value of additive variety and dominant variety based on the results of data analysis varied, but in all observed traits the dominant variety value tended to be greater. Most of the observed traits have a negative heritability presumptive value, except for stem diameter, panicle exit age, fresh pruning weight, and 1000 seed weights. The conclusion obtained is that most of the observed properties have additive variance values and negative heritability values; the dominant variance value in all observed properties is greater than that of additive variety; The heritability of most traits cannot be predicted because they are negative. Therefore, it is advisable for the improvement of the F2 population is with the formation of hybrids.
Determination of PEG (Polyethlenee Glycol) Concentration and Dosage to Evaluate The Resistance of Rice (Oryza Sativa L.) to Drought Siti Raihanun; M. Taufik Fauzi; Suwardji Suwardji; A.A.K Sudharmawan
Jurnal Biologi Tropis Vol. 23 No. 4 (2023): October - December
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v23i4.5332

Abstract

The writing is intended to assess the response of rice plants to the germination phase through induce concentrations and a dose of the PEG. Library research is used in this writing by locating and collecting libraries that were generated by earlier research. As for the data obtained in this writing, it is the result of analysis of various vets and rice varieties of Cempo Laut, Edok, Mutant Galurses (M5-GR150 1-4, M5-GR150 1-9, M5-GR200 1-2, M5-GR150 2-2, M5-GR150 2-3), Legowo, Malihan Ketan, Mlarak 1, Inpago, IR 64, Palenok, Philips, Radix. Concentrations of PEG 6000 and 8000 with a dose of 0%, 5%, 15%, 20% and 25% induced, then treated with the best denunciation. Observation data indicate that each response is different. PEG concentration of 8000 and dose of -0.5 MPa gave the best germination power.
The Effect of Cover Crops on Soil Quality in Gogo Rice Planting in an Effort to Increase Yield M. Iqbal Atmayadi Saifuddin; Taufik Fauzi; A.A.K. Sudharmawan
Jurnal Biologi Tropis Vol. 23 No. 4 (2023): October - December
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v23i4.5335

Abstract

Organic matter is one of the important factors that can determine the level of soil fertility and health. The presence of organic matter in the soil is currently quite worrying. This is due to the behavior of the farmers themselves who tend to carry out inappropriate cultivation and the excessive use of inorganic fertilizers and the use of chemical pesticides that exceed the dosage. It is necessary to take appropriate measures so that the organic matter in the soil is not reduced. The analysis was carried out descriptively by conducting a literature study on relevant literature and conducting a qualitative analysis. Based on the results of a review of international and national journals that cover crops can play an active role in the growth rate and yield of cultivated plants. Ground cover plants can be used as conservation plants, soil health and fertility and the environment as erosion control, maintaining soil moisture, controlling pest populations, suppressing weed growth. The advice that can be given from this paper is the need for further research on the use of cover crops as a source of organic matter in soil balance and agro-ecosystems.
The Status of Land Cover in The Main Watershed (DAS) of Lombok Island and its Potential as Acause of Drought Hidayatun Nufus; Taufik Fauzi; A. A. Ketut Sudarmawan; Suwardji; Mahrup
Jurnal Biologi Tropis Vol. 23 No. 4 (2023): October - December
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v23i4.5342

Abstract

Changes in land cover that occur from year to year continue to increase. Human activity, especially in the utilization of natural resources, especially forests for various purposes, resulted in an increase in open land as well as critical land. As a result, the upstream watershed area which originally had an important role for the hydrological cycle, gradually decreased its function and ability as a catchment area. The purpose of this writing is to find out the status of land cover in the main watershed of the Lombok island on the class of land cover that applies universally, and examine its potential as a cause of drought on the island of Lombok. This research was conducted using the descriptive method, through the following stages, namely (i) secondary data collection, (ii) data analysis and (iii) data interpretation. This research was conducted from March 2023 to June 2023. The research area covers the island of Lombok. The four main watersheds (DAS), namely Dodokan, Menange, Pustik and Jelateng. Data 12 Land cover, namely Evergreen/Deciduous needieleaf, Evergreen broadeaf tress, Deciduous brodeaf tres, Mixed/other tresses, Shurbs, Herbaceous vegetation, Cultivated and manged vegetation, Regularly flooded vegetation, Urban/built-up, Snow/ice, Barren, Open water downloaded from the wibe site earthenv.org. Altitude data is downloaded from the web site https://globalsolaratlas.info/map.
Length and Weight Relationship of Mackerel Fish (Auxis rochei) at Fish Collector Markets in Ampenan, Lombok Ulya Nisa Afifa; Dining Aidil Candri; AA Ngurah Nara Kusuma; Hilman Ahyadi; Yuliadi Zamroni
Jurnal Biologi Tropis Vol. 23 No. 4 (2023): October - December
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v23i4.5343

Abstract

Lisong tuna (Auxis rochei) is one of high economic potential value of fish because of its abundance and often found in the fish market in Ampenan. Evaluating the impact of fishing to the growth pattern of length-weight of tuna is needed to ensure the sustainability of lisong tuna population. It is feared that the high intensity of tuna (A. rochei) fishing can cause growth disturbances and a decrease in local tuna populations. This study aimed to determine the relationship between the weight and length of lisong tuna (A. rochei) to their growth patterns in the fish market of Ampenan. Thirty individuals of lisong tuna were collected from two fish markets, Bintaro and Kebon Roek, in Ampenan. The equation of Linear Allometric Model is used to evaluate the length and weight relationship in growth patterns of lisong tuna. This study resulted in the positive allometric growth pattern of lisong tuna with slope value more than 3 (b=3.79). It indicated that the lisong tuna which were collected in Bintaro and Kebon Roek markets have a weight growth rate faster than their length growth rate. It means that the lisong tuna sold in Ampenan markets is quite fleshy and has a good growth rate.
Interest Analysis Epilachna sp. of Plant Types of Eggplant Leaves (Solanum melongena), Rimbang Leaves (Lycopersicum torvum), and Chili Leaves (Capsicum sp.) Weyni Iskandaria
Jurnal Biologi Tropis Vol. 23 No. 4 (2023): October - December
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v23i4.5379

Abstract

The abundance, survival and reproduction of herbivorous insects are strongly influenced by changes caused by plant traits. One example is Epilachna sp.. An animal's likes or preferences can change with experience. If the availability of a particular food in the environment is low, then that type of food will be less available as food, but if the availability is higher or more abundant than usual, then that type of food will be consumed more (often). So, the main aim of this research is to find out what food preferences are most frequently attacked and eaten by Epilachna sp. and also the reasons and contents. The research method is qualitative research, meaning that the observations made by the researcher were obtained from various article references and direct observation. The feed given is eggplant leaves, rimbang leaves and chili leaves. The food that occupies the highest level is Epilachna sp. namely eggplant leaves, this is because there are nitrogen and alkaloids. The second rank which is not far from the first rank is Rimbang Leaf. Meanwhile, chili leaves occupy the lowest level or are not liked by Epilachna sp.
Organoid Culture Applications: Mini Systematic Review Rilwan Efendi; Puti Khairunnajwa Amar; Resti Rahayu; Putra Santoso; Zozy Aneloi Noli; Rita Maliza
Jurnal Biologi Tropis Vol. 23 No. 4 (2023): October - December
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v23i4.5387

Abstract

Recent scientific developments in the stem cell field have made it possible to create complex organoids, or structures that resemble complete organs, in vitro. In the majority of these methods, stem cells produced from stem cells or tissue progenitors are allowed to self-organize into three-dimensional (3D) structures using culture systems in three dimensions. The purpose of this study is to ascertain the use of organoid culture in the area of health. This kind of study employs the literature review methodology. The Preferred Reporting Items for Systematic Review and Meta-Analysis (PRISMA) criteria are referenced throughout the stages of the literature review performed in this study. The four processes that make up this level are identification, screening, eligibility, and acceptance. These discoveries showing that human stem cells and patient-derived pluripotent stem cells can be used to generate organoids open up a wide range of opportunities for modeling and disease development, toxicological research and medication discovery, and the field of regenerative medicine. Here, we discuss some of the most significant recent advancements in 3D human organoid production as well as the field's historical advancements. Finally, we discuss present restrictions and provide illustrations of how organoid technology may be used in the healthcare industry.
Urea’s Effect on Dry Matter, Organic Matter, and Crude Protein Content of Ammoniated Corn Straw Azhary Noersidiq; Syamsul Hidayat Dilaga; Suhubdy Suhubdy; Muhamad Amin; Fahrullah Fahrullah; Vebera Maslami
Jurnal Biologi Tropis Vol. 23 No. 4 (2023): October - December
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v23i4.5388

Abstract

Feed is an absolute necessity that must be guaranteed in the maintenance of ruminants but its availability is always a problem during the dry season so that a fresh forage is difficult to obtain and only agricultural waste in the form of straw is available. One of widely used by farmers, especially in Lombok region, is corn straw. This research aims to evaluate the nutritional content of corn straw that has been ammoniated using urea. This study used corn straw and urea for the ammoniation process with a complete randomized design (CRD) design consisting of 4 treatments and 4 replications, namely T1= corn straw without ammoniation (control), T2= corn straw ammoniated with a dose of 2% urea, T3= corn straw ammoniated with a dose of 4% urea and T4= corn straw ammoniated with a dose of 6% urea. The variables measured were dry matter (DM), organic matter (OM) and crude protein (CP). The results showed that urea used in the ammoniation process of corn straw showed a significant effect (P<0.05) on increasing the content of DM, OM and CP with results ranging from 21.02% - 23.98% for DM content, 88.13% - 91.07% for OM content and 13.53% - 23.81% for CP content. It was concluded that the best dose of urea for ammoniation of corn straw was treatment T4 with a dose of 6% urea with the results of the content of 23.98% DM; 89.94% OM and 23.81% CP, respectively.
Production of Radish Plants (Raphanus sativus) Due to Giving Bokashi and SP-36 Uly J. Riwu Kaho; Joritha Naisanu
Jurnal Biologi Tropis Vol. 23 No. 4 (2023): October - December
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v23i4.5408

Abstract

Radish plants as a food ingredient, almost all parts of the plant can be eaten raw as fresh vegetables or cooked as vegetables. The community's need for radish continues to increase as indicated by an increase in the amount of production. In 2018 radish production was recorded at 32,381 tons, in 2019 production decreased to 27,279 tons, while in 2020 production increased again to 39,048 tons. The solution in increasing radish production is by fertilizing using organic and inorganic fertilizers. The aim is to determine the interaction between SP-36 and bokasih on radish crop yields. The plan utilized was a randomized block plan (RBD) in a factorial example with two variables. The outcomes acquired: The treatment of bokashi and SP36 composts meaningfully affected plant level, number of leaves, tuber length, tuber distance across and tuber weight of radish plants. The connection between the utilization of Bokashi and SP36 composts gave the best outcomes on the normal plant level, number of leaves, tuber measurement and tuber weight of radish plants.
The Effect of Artificial Feeding Treatments on Predatory and Pollinating Ants in Cayenne Pepper Plants Tamrin Abdullah; Melina Melina; Prihatin Prihatin; Nurul Wiridannisaa; A. Dian Ridha Maghfirah
Jurnal Biologi Tropis Vol. 23 No. 4 (2023): October - December
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v23i4.5413

Abstract

Pests have the potential to reduce the quality and quantity of cayenne pepper production. Pest control is done by utilizing natural enemies, such as ants by being stimulated with artificial food. This study aims to observe the population of dominant species and the effect of various artificial feeding treatments on ants that act as predators or pollinators in chili plants. The study was arranged in a Randomized Group Design (RGD) with 5 treatments, namely P0: Control (no pellet or sugar solution treatment); P1: 10 g artificial feed pellets; P2: 10% sugar solution; P3: 10% sugar solution and 10 g artificial feed pellets; and P4: 10 g artificial feed pellets (put into artificial nest) which was repeated 4 times.  Observations were made five times at three-day intervals. Data were analyzed by calculating the species diversity index (H'), species dominance index (C), and ant population. Based on the results, the ant diversity index in this experiment was classified as moderate at 1.17 (H' 1.0-3.0) and the ant dominance index was 0.35 (low: C<0.5). Ant identification revealed four species from three sub-families: Myrmicinae, Dolichodorinae, and Formicinae, namely Pheidole sp., Monomorium sp., Tapinoma sp., and Paratrechina sp. While species that have the potential as predators or pollinators on chili plants are Tapinoma sp.. Artificial feeding with treatment P3 (10 g artificial feed and 10% sugar solution) can have an effect and increase the population of Tapinoma sp. ants with an average of 81.95 heads on chili plants.

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