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Kota mataram,
Nusa tenggara barat
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 45 Documents
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Search results for , issue "Vol. 22 No. 2 (2022): April - June" : 45 Documents clear
Active Components of Komak Beak Bongkor (Lablab purpureus (L.) Sweet) Seeds Nur Indah Julisaniah; Baiq Aulia Dewi Agustin; Sukiman Sukiman; Kurniasih Sukenti
Jurnal Biologi Tropis Vol. 22 No. 2 (2022): April - June
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.v22i2.3633

Abstract

Komak bean (Lablab purpureus (L.) Sweet) belongs to the family Fabaceae and subfamily Papilionidae. Komam bean is cultivated by people for consumption as an additional food source. Informationabout the active compound content of komak bean is needed as a reference in the utilization of komak. This research aims to determine the active compounds contained in komak seed (Lablab purpureus (L.) Sweet). This study used GC-MS analysis to determine the active components of the komak bean seed. Based on research result, komak Beak Bongkor bean contain 13 active components, they were toluenea, methyl octanoat, adacene 12, isododecane, caprylic acid, retardex, 1-undecene 7-methyl-, methyl caprate, capric acid, benzoic acid 4-ethyl-, palmitic aldehyde, methyl laurate dan lauric acid.
Characterization of phytochemical compounds (qualitative and quantitative) in the endophytic fungi the bark of the Duwet plant Titik Wijayanti; Anita Munawwaroh; Nuril Hidayati
Jurnal Biologi Tropis Vol. 22 No. 2 (2022): April - June
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.v22i2.3651

Abstract

This study aims to characterize the phytochemical compounds in the endophytic fungi the bark of the Duwet (S. cumini L.). Duwet skin samples were taken from various regions in East Java, including Batu City, Malang Regency, Pasuruan Regency, Lamongan Regency, Gresik Regency, and Situbondo Regency. The method used in this research is an experiment, namely the isolation of endophytic fungi, qualitative and quantitative phytochemical content tests. The results showed that there were variations in the content of endophytic fungi in the duwet bark from one location to another. All samples of endophytic fungi isolate from Duwet stem bark contained flavonoid compounds, alkaloids, terpenoids, phenolics and tannins. Phytochemical compounds of endophytic fungi in the bark are the result of symbiosis between endophytic fungi and their host plants. Endophytic fungi live in intracellular tissue, then absorb nutrients from their host plants, and include phytochemical compounds found in the bark of the duwet plant.
Profitability and Feasibility Analysis of Sand Lobster (Panulirus homarus) Farming in Jerowaru District East Lombok Regency Yuansa Aneswari; Ibrahim Ibrahim; Muhammad Nursan
Jurnal Biologi Tropis Vol. 22 No. 2 (2022): April - June
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.v22i2.3662

Abstract

Jerowaru District is one of the areas in East Lombok Regency which has enormous potential in the aspect of developing lobster cultivation. Especially the cultivation of sand lobster (Panulirus homarus) which is supported by geographical conditions, public interest, and also from the government. This study aims to: (1) analyze the profitability of sand lobster (Panulirus homarus) farming, (2) analyze the feasibility of sand lobster (Panulirus homarus) farming, (3) find out the constraints on sand lobster (Panulirus homarus) farming in Jerowaru District, East Lombok Regency. The method used in this study is a descriptive method with the unit of analysis used is the sand lobster (Panulirus homarus) farming in Jerowaru District, East Lombok Regency. The results showed that: (1) Sand lobster farming in Jerowaru District, East Lombok Regency has a high level of profitability or a high level of profit, the income generated is Rp. 23,189,000 with a total production of Rp. 14,015,000 so that the return value is obtained. Of Investment (ROI) of 165.45%. (2) The sand lobster cultivation business in Jerowaru District, East Lombok Regency is feasible because the R/C ratio value obtained is greater than 1 (2.65 > 1) and the B/C ratio is greater than zero (1.65 > 0). (3) Constraints faced by sand lobster respondents in Jerowaru District, East Lombok Regency, namely weather constraints, disease, post-harvest, selling prices, feed, damaged nets and theft.
The Potential of Corn Waste (zea mays L.) as Ruminants Feed in Bolo District, Bima Regency Mastur Mastur; Oscar Yanuarianto; Dedy Supriadin; Ridwan Saedi; Yusuf Akhyar Sutaryono; Sukarne Sukarne
Jurnal Biologi Tropis Vol. 22 No. 2 (2022): April - June
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.v22i2.3682

Abstract

Corn straw as agricultural waste is a source of feed for ruminants which has a high fiber content and still contains good nutritional value and is sufficiently available. Unfortunately, this potency has not been fully utilized by the farmer as animal feed. This condition is found in almost all regions in NTB because we still see a lot of corn straw or corn waste in general, a lot of which is wasted even burned by the community. One of the efforts that need be made so that it can be used as a source of feed is by knowing the production of corn straw and its potential as feed for ruminants in Bolo District, Bima Regency. The research was carried out by survey method by using a questionnaire. The research results showed that the area of ​​maize plants in Bolo District was 4,041.88 hectares with a harvest area of ​​3,024.76 hectares. The production of corn waste consisting of stalks, leaves, husks, cobs and silk was 3,629.66 tons in dry matter. The population of ruminants (cattle, buffalo, goats and sheep) is 10,008 heads with the largest livestock population is the cattle. From the calculation between the amount of corn waste production and the ruminant livestock population in Bolo District, Bima Regency, it can be concluded that corn waste has a high potential as feed, which is 19 percent.
Analysis of vegetation structure of urban parks and environmental discomfort index in The City of Mataram Suripto Suripto; H. Ahyadi
Jurnal Biologi Tropis Vol. 22 No. 2 (2022): April - June
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.v22i2.3733

Abstract

The high population growth in Mataram City with the consequence of increasing development has caused a decrease in the area of ​​green open land. Garden parks as part of green open land need to be maintained and evaluated for their vegetation to be able to control the impact of local climate change. This study aims to analyze the vegetation structure of garden parks in Mataram City and assess its ability to reduce the increase in the environmental discomfort index. Vegetation analysis was carried out in six garden parks in Mataram City using the transect-squared method. The observed vegetation variable was the lushness of each vegetation life form. Vegetation data was analysed to produce groups of urban park vegetation structures in Mataram City. Microclimate factors inside and outside the park, which include air temperature and humidity observed on a sunny day according to a two-way line interval design with a direction according to the shape and area of ​​the observed urban park. The data of air temperature and humidity were processed to produce an index of environmental discomfort. The results showed that the six urban parks observed in The City of Mataram were divided into three groups of vegetation structures, namely the form of trees & shrubs (Ampenan Old Town Park, Udayana Garden and Selagalas park), forms of shrubs & trees (Sangkareang Park and Garden of Mayura ) and forms of bushes & shrubs (Malomba Park). The existence of city parks with variations in their vegetation structure in Mataram City does not cause variations in their ability to reduce the discomfort index. All city parks observed in Mataram City have moderate ability in reducing environmental discomfort index. Most of the areas outside the city parks in Mataram City have a class c of discomfort index and only Mayura Park, Malomba Park and Selagalas Park are known to reduce the discomfort class, namely from class c (discomfort felt by >50% of the population) outside the park to class b (discomfort felt by <50% of population) in the park.

Page 5 of 5 | Total Record : 45

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