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Jurnal Pembelajaran dan Biologi Nukleus
Published by Universitas Labuhanbatu
ISSN : 24429481     EISSN : 26857332     DOI : https://doi.org/10.36987/jpbn
Core Subject : Science, Education, Agriculture, Social,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media
Jurnal Pendidikan Biologi merupakan jurnal elektronik yang merupakan wadah penerbitan artikel penelitian original yang terkait dengan penelitian pendidikan biologi. Jurnal ini dikelola oleh Program Studi Pendidikan Biologidibawah naungan LPPM Universitas Labuhanbatu. Jurnal ini diterbitkan dua kali dalam setahun pada bulan Maret dan September. Jurnal ini menyajikan hasil penelitian dibidang Pendidikan Biologi dan sains Biologi.
Arjuna Subject : Biokimia, Genetika dan Biologi Molekuler - Biokimia, Genetika dan Biologi Molekuler (Lain-Lain)
Articles 437 Documents
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Analysis of Tree Health in the Pematangsiantar Animal Park, North Sumatra Province Rozalina, Rozalina; Nurrachmania, Meylida; Pangaribuan, Ryandi Goklas
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 9, No 1: Jurnal Pembelajaran Dan Biologi Nukleus March 2023
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v9i1.3839

Abstract

This study aims to determine acquire data on the species composition and structure of trees, as well as to analyze the health of trees growing in the Pematangsiantar Animal Park. Using the census approach, data collection was conducted. The health state of trees was determined using the Forest Health Monitoring (FHM) method, which measures tree health by categorizing the kind and severity of damage per every plant. Two indicators are utilized to measure tree health: tree damage and tree crown condition. The method of data collection was conducted on trees with a minimum diameter of 20 centimeters. Techniques of data analysis consisting of descriptive and weighted scoring. At the Pematangsiantar Animal Park, there are 49 species of trees and a total of 153 unique trees. Mahogany (Swietenia mahagoni) is the most prevalent tree species, with 21 specimens. The health state of the trees in the Pematangsiantar Animal Park included 48 trees with a healthy status, 93 trees with bad (unhealthy) status, and 12 trees with a sick status, however none were discovered to be in a very sick condition
Study of Vegetation's Capacity to Reduce of the CO2 Emissions from Vehicle Engine Contribution in Green Open Space Pinang Masak Campus, Jambi University Reevaluation on Period 2016–2022 Tazkiah Auliaputri; Ulan Aprilia; Fitra Nurhanipan; Robet Suhanda; Jumiatun Nazila; Mahya Ihsan
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 9, No 1 (2023): Jurnal Pembelajaran Dan Biologi Nukleus March 2023
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v9i1.3647

Abstract

The atmosphere's carbon dioxide (CO2) content raises global temperatures. OGS, or green open space, has the power to absorb carbon dioxide. The OGS of Pinang Masak Campus, Jambi University, too has this potential, although the number of vehicles keeps rising yearly. The reduction of flora at Jambi University's Pinang Masak Campus will result in higher carbon emissions. The three-month study was carried out at the Pinang Masak Campus Jambi University. This study directly measured the crown and counted the number of individual trees. There are 62 species of trees in all, totaling 1455 individuals. Motorcycles are the most common form of vehicle to enter the college area. According to calculations of carbon absorption, the rates of emissions produced by cars, 583,619 kg/hour, and 581,779.330 kg/hour, respectively, are 1,839.667 kg/hour, 583,619 kg/hour, and 581,779.330 kg/hour, respectively. According to these findings, based on positive residual emissions, the Green Open Space of Pinang Masak Campus is less able to absorb carbon emissions from automobiles.
Escalation Of Coffee Plant (Coffea arabica L) By Addition Of Microcapsules From IAA (Indole Acetic Acid) Producing-Endophytic Bacteria Purba, Indra Gunawan; Warsito, Kabul; Refnizuida, Refnizuida
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 9, No 1: Jurnal Pembelajaran Dan Biologi Nukleus March 2023
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v9i1.3907

Abstract

The growth of coffee (Coffea arabica L) plants is highly dependent on the quality of the seeds and fertilization. One of the newest innovations in the field of organic farming is the use of endophytic bacteria as potential candidates to be developed become biofertilizers. Endophytic bacteria that produce IAA (Indole acetic acid) are able to produce phytohormones that can accelerate plant growth. The purpose of this researeh was to determine the effectiveness of endophytic bacterial microcapsules for the growth of Arabica coffee plants. This research was conducted using the factorial CRD (Completely Randomized Design) method consisting of 2 factors, 16 treatments, 2 replications. The first factor was  immersion  of endophytic bacterial suspension consisting of B0: without immersion; B1:8 hours; B2 :9 hours;  B3: 10 hours.  Microcapsules addition of endophytic bacteria consisting of I0 : 0 gr; I1 : 5 gr; I2 : 10 gr; I3 : 15 gr. The results from isolation was obtained four isolates of endophytic bacteria. The IAA test showed that the four  isolates were able to produce IAA. Observation of plant height showed that the best treatment was treatment B1 of (16.31 cm). Observation on total of leaves, best treatment were B1 and B2 (10.57 strands). For the leaf area parameter, the best treatment was B3 of (27.36 cm2). Test results showed that application of suspension and microcapsules of endophytic bacteria significantly increased growth of coffee
Effectiveness Microcapsules From Auxin Producing-Endophite Bacteria As Biofertilizer in Tea (Camellia sinensis L) Zit, Sigit Indra; Warsito, Kabul; Refnizuida, Refnizuida
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 9, No 1: Jurnal Pembelajaran Dan Biologi Nukleus March 2023
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v9i1.3904

Abstract

Tea (Camellia sinensis L), is a popular agricultural product enjoyed by people around the world. Bio-fertilizers that use bacteria found in soil called endophytes, have proven effective for increasing growth and plant productivity. Endophite bacteria can also produce growth hormones such as auxins, ethylene, and cytokinins. This research aims to determine the effectiveness of auxin-producing endophytic bacterial microcapsules on tea growth. The research design used was a completely randomized design (CRD), 16 treatments with 2 replications. The first factor was immersion of  endophite bacterial suspension consisting of S0 = 0 hours; S1 = 24 hours; S2 = 36 hours and S3 = 48 hours and the second factor was the addition of microcapsules consisting of I0 = 0 gr; I1 = 5 gr; I2 = 10 gr; I3 = 15 gr. Isolation from tea roots and stems obtained 6 isolates of endophite  bacteria. Auxin test showed that the six isolates were able to produce auxin. Observation of plant height showed that the best treatment was in treatment I3 (17.04 cm). Observation of leaves amount was in treatment I3 (6.88 strands). For the leaf area parameter, the highest number was in the S1 treatment (22.8 cm2). For stem diameter parameter, highest data was in treatment I2 (1.69 mm). The test results showed that the application of suspension and endophite bacteria microcapsules  significantly increased the growth of tea.
Application of Microgranule from IAA Producing-Endophytic Bacterial as Biofetilizer on Rubber Plants (Hevea brasiliences Muell. Arg.) Ardiansyah, Agung; Warsito, Kabul; Ginting, Tri Yanita
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 9, No 2: Jurnal Pembelajaran Dan Biologi Nukleus July 2023
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v9i2.3909

Abstract

Rubber plant (Hevea brasiliensis Muell.Arg) is the main commodity of plantations, some of whose products are exported and some to meet domestic needs as raw materials for industrial purposes. Purpose on research diversity and crateristics of endophytic bacteria producing hormone IAA from rubber plants. Then the effectiveness treatment of microgranules addition and immersion of  endophite bacterial suspension and rubber seed soaking suspension to spur the growth of rubber plants. This research was conducted using the factorial CRD (Completely Randomized Design) method consisting of 16 treatments with 2 replications. The first factor was immersion of  endophite bacterial suspension consisting of R0 = 0 hours; R1 = 12 hours; R2 = 24 hours and R3 = 36 hours and the second factor was the addition of microgranules consisting of  J0 = 0 gr; J1 = 10 gr; J2 = 15 gr; J3 = 20 gr. The results of this study showed that the results on the isolation of endophite bacteria from the tea plant from the roots and stems of the tea plant yielded 3 isolates from plant roots and 2 isolates from plant stems. For IAA levels, the five isolates were positive. The use of endophytic bacteria as an alternative biofertilizer has a significant effect on the parameters observed
Invasion of Endophytic Bacteria by Using Microencapsulation Technology as Stimulant in Cocoa Plants (Theobroma cacao L) Prayoga, Gusti Yanda; Warsito, Kabul; Amrul, Hanifah Mutia Z.N.
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 9, No 2: Jurnal Pembelajaran Dan Biologi Nukleus July 2023
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v9i2.3908

Abstract

Fertilization is an important process in the growth of cocoa (Theobroma cacao L). Fertilizing cocoa usually used inorganic fertilizers. Using of inorganic fertilizers continuously could degrading soil fertility. One of the efforts to replace inorganic fertilizers was using endophytic bacteria as biofertilizers. Some endophytic bacteria are abundant in healthy plant tissues. The aim of this research was to obtain endophytic auxin-producing bacteria in cocoa plants and determine the effect of seed immersion and microcapsules addition of endophytic bacteria on cocoa plant growth. The research design used was Complete Randomized Design (CRD), 16 treatments and 3 replications. The first factor was immersion of cocoa seed using endophytic bacteria suspension consisting of S0= 0 hours; S1= 5 hours; S2= 6 hours and S3= 7 hours and the second factor was microcapsules addition consisting of B0= 0 gr; B1= 5 gr; B2= 10 gr; B3= 15 gr. Isolation from the roots and stems of cocoa obtained 5 isolates endophyte bacteria. Auxin assays showed that five isolates were able to produce auxin. Observations on plant height showed the best treatment was treatment B1 (32.49 cm). Observation of total leaves showed S3 treatment was the highest data (11.83 strands). Observation rod diameter parameter, highest data was S3 treatment (4.01 mm). For leaf area parameter, highest value was B1 treatment (66.64 cm2). For wet weight parameter, highest data was S3 treatment (18.41 g). Root length parameter, highest data was B3 treatment (15.78 cm).  Test results showed that the application of suspension and microcapsules of endophytic bacteria significantly increased growth of cocoa.
Development of Character Education-Based Modules on Environmental Pollution Material to Improve Environmental Care Attitudes Izra Aulia Almi Harahap; Indayana Febriani Tanjung
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 9, No 2 (2023): Jurnal Pembelajaran Dan Biologi Nukleus July 2023
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v9i2.4275

Abstract

Character is defined as an individual driving engine to carry out an action, respond and respond to something. So that the most important thing instilled by a human being from an early age is character values through character education at school age. This study aims to develop a character education-based environmental pollution module. The research method used is 4D (Define, Design, Development, Dissamination). This research was conducted on class X students of MAN Asahan. The results showed that the assessment of the validation test of the material obtained was 88% (Valid), the assessment of the validation test of learning media experts was 89% (Valid), the assessment of character education experts was 80% (Valid), the response assessment by biology teachers was 95% (Very Practical), the average student response rating is 90% (Very Practical). Based on that it was concluded that the character education-based environmental pollution module that was developed was valid, practical and effective
Productivity of Several Soybean Varieties (Glycine Max L.) Based on Pruning of Corn (Zea Mays L.) Leaves Fahmi, Zul; Syarif, Auzar; Dwipa, Indra
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 9, No 2: Jurnal Pembelajaran Dan Biologi Nukleus July 2023
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v9i2.4282

Abstract

This research on intercropping productivity of several soybean varieties based on pruning corn plant leaves was carried out on road Alai Kapalo Koto, Limau Manis, Pauh District, Padang at an altitude of 101 meters above sea level from July to November 2022. The purpose of this research is to investigate the relationship between various soybean types and pruning. The best corn leaf for plant development and production, as well as intercropping productivity. This study used a factorial completely randomized design (CRD) with three replications. The first component was soybean cultivars, which had four treatment levels (Anjasmoro, Grobogan, Devon 1, and Dega 1), and the second factor was the quantity of corn leaf pruning, which had four treatment levels (Pruning 0 1/2, 1/3, and 1/4 Corn Plant Leaves). The number of clipped leaves is determined from the base of the stem. The findings revealed that there was no interaction between the quantity of leaf pruning applied to maize plants and select soybean varieties and plant development and yield in an intercropping system. trimming half of the leaves of a maize plant has a greater influence on NKL and ATER values than other trimming levels. When compared to other soybean varieties, the Anjasmoro soybean variety produced higher ATER soybean yields. According to the findings of this study, 1/2 leaf pruning of corn plants and the Anjasmoro type of soybean plants should be used in an intercropping system
Ethnobotany of Traditional Food Ingredients in Tuban Regency, East Java Kurniahu, Hesti; Andriani, Riska; Rahmawati, Annisa
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 9, No 2: Jurnal Pembelajaran Dan Biologi Nukleus July 2023
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v9i2.4301

Abstract

Traditional food is one of the cultural products that was created to meet primary human needs by involving local wisdom. Various types of traditional food are processed from plants taken from the surrounding environment and other places. Local communities have specific interactions and perceptions of plants as ingredients for their traditional foods. The goal was to determine the diversity, the categories of utilization, the organs used, the preparation methods, and the Cultural Significance Index (ICS) of plants in traditional Tuban food ingredients. This research was conducted by surveying 117 respondents from 20 sub-districts in Tuban Regency, followed by in-depth interviews with 20 traditional food makers in Tuban. The data obtained is in the form of qualitative data in the form of local knowledge of the Tuban people regarding plants in their traditional food ingredients, while quantitative data is in the form of the Cultural Significance Index (ICS). The results showed that there were 15 families consisting of 10 species of plants in traditional Tuban food, all of which were cultivated plants, the most used category of plants as spices and the organs most used were seeds and the highest ICS value was Oryza sativa L. 
Antimicrobial Activity of Endophyte Bacteria Isolated from Seaweed (Padina sp.) on the Growth of Bacteria Escherichia coli and Staphylococcus aureus Akay, Fanesa; Ngangi, Jantje; Lawalata, Helen J
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 9, No 2: Jurnal Pembelajaran Dan Biologi Nukleus July 2023
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v9i2.3632

Abstract

Padina sp. seaweed is one of the Chlorophyta which has potential as an antimicrobial. This study aimed to determine the antimicrobial activity of Padina sp. seaweed endophytic bacteria against Escherichia coli and Staphylococcus aureus. The method used in this research is descriptive qualitative. The results of the isolation of endophytic microbes of Padina sp. seaweed obtained were seven isolates DP1, DP2, DP3, DP4, AP1, AP2, and AP3. The results of the antimicrobial activity test showed that the seven isolates of endophytic bacteria had potential as antimicrobials. Incubation time for 24 hours showed that the diameter of the inhibition zone formed was 9.75 – 11.55 mm against S. aureus and 7.15 – 10.0 mm against bacteria. E. coli. The AP3 and DP1 isolates had a wider zone, presumably because their antibacterial substances were higher than the other isolates.

Page 20 of 44 | Total Record : 437

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