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All Journal AL KAUNIYAH Jurnal Pembelajaran dan Biologi Nukleus International Journal of Hydrological and Environmental for Sustainability
Riany, Hesti
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Education Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Materials Science & Nanotechnology

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KARAKTERISASI DAN IDENTIFIKASI BAKTERI RIZOSFER TANAMAN SAWIT JAMBI Khairani, Khairani; Aini, Fitratul; Riany, Hesti
Al-Kauniyah: Jurnal Biologi Vol 12, No 2 (2019): Al-Kauniyah Jurnal Biologi
Publisher : Department of Biology, Faculty of Science and Technology, Syarif Hidayatullah State Islami

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (523.108 KB) | DOI: 10.15408/kauniyah.v12i2.11723

Abstract

AbstrakBakteri rizosfer adalah bakteri yang terdapat pada daerah perakaran tanaman yang diketahui memiliki keanekaragaman tinggi. Bakteri rizosfer memiliki berbagai peran seperti menyediakan nutrisi bagi tanaman, melindungi tanaman dari infeksi bakteri patogen, menghasilkan hormon pertumbuhan seperti indol acetic acid, pelarut fosfat, pengikat nitrogen, dan lain-lain. Dengan berbagai kemampuan dan peran tersebut, maka perlu eksplorasi bakteri rizosfer tanaman sawit khususnya di daerah perkebunan agar diketahui kelompok bakteri rizosfer, sehingga dapat dimanfaatkan secara optimal. Penelitian ini bertujuan untuk mengetahui kelompok dan keragaman bakteri rizosfer pada tanaman sawit yang berumur 8, 11, dan 14 tahun. Penelitian dilakukan dengan pendekatan konvensional dengan karakterisasi morfologi dan uji biokimia. Dari umur-umur tersebut, didapatkan 18 isolat yang terdiri dari 11 genus, yaitu Bacillus, Azospirillum, Actinobacillus, Xanthobacter, Enterococcus, Paenibacillus, Klebsiella, Pseudomonas, Arthrobacter, Micrococcus, dan Streptococcus. Bakteri rizosfer tanaman sawit memiliki keragaman genus yang sama pada umur 8, 11, dan 14 tahun. Genus bakteri yang didapatkan dapat dimanfaatkan sebagai PGPR (Plant Promoting Rhizobacteria).Abstract Rhizosphere bacteria are bacteria found in root areas. Rhizosphere bacteria have various roles such as providing nutrients for plants, protecting plants from infection pathogenic bacteria, producing growth hormones such as indol acetic acid, phosphate solvents, nitrogen binders, and others. By having these various abilities and roles, it is necessary to explore the bacteria of oil palm plants, especially in the plantation areas so that the group of rhizosphere bacteria can be identified and then utilized optimally. This study aims to determine the group and diversity of rhizosphere bacteria in oil palm plants that are 8, 11, and 14 years old. The research was conducted conventionally by observing morphological and biochemical characterization. At those ages, 18 isolates were consisting of 11 genera, namely Bacillus, Azospirillum, Actinobacillus, Xanthobacter, Enterococcus, Paenibacillus, Klebsiella, Pseudomonas, Arthrobacter, Micrococcus, and Streptococcus through conventional methods. Rhizosphere bacteria in oil palm plants have the same genus diversity at the ages of 8, 11, and 14 years. The bacterial genus obtained can be used as PGPR (Plant Promoting Rhizobacteria).
X-Ray Fluorescence Monitoring Metal Content and Nutrient Elements for Predicting Soil Fertility Parameters Based on pH in Ultisol Soil Samsidar, Samsidar; Maison, Maison; Ermadani, Ermadani; Latief, Madyawati; Pebralia, Jesi; Riany, Hesti; Amanda, Dwi Rahma; Maulana, Lucky Zaehir
International Journal of Hydrological and Environmental for Sustainability Vol 2, No 3 (2023): International Journal of Hydrological and Environmental for Sustainability
Publisher : CV FOUNDAE

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58524/ijhes.v2i3.290

Abstract

Soil fertility parameters, including macronutrients, micronutrients, and metal content, are very important for optimizing agricultural and plantation land management. Ultisol is a type of soil that is commonly used as a planting medium for oil palm plantations, rubber, and various types of vegetables. Continuous land use causes variations in nutrient and metal content. This change is also caused by the fertilization process and the characteristics of the plants grown in the area. In this study, an analysis of soil fertility parameters (macronutrients, micronutrients, and metal content) was analyzed using X-Ray Fluorescence (XRF) on Ultisol soil taken from Muara Jambi Regency, Indonesia. This analysis was conducted across land-use areas (Palm, Rubber, Vegetables, and Forest). Subsequently, the obtained measurements were used to model correlations with soil pH values to predict soil fertility parameters. The quantitative results showed that the metal content values were reasonably consistent across all locations regarding metal types and their percentage concentrations. However, locations 1 (T1) and 2 (T2) have higher aluminum (Al) content than locations 3 and 4 and lower magnesium (Mg) content. The modeling, when correlated with pH values, indicated that metal elements correlated 0.938, macronutrients 0.934, and micronutrients 0.767. From these correlations, it can be qualitatively inferred that there is a strong relationship between pH and the presence of metal content, macronutrients, and micronutrients. In the future, this can serve as a model for estimating the presence of soil fertility parameters.
Diversity of Tree Species in Campus Forest of UIN Sulthan Thaha Saifuddin Jambi Wati, Ayu Widya; Susanti, Try; Manurung, Aini Qomariah; Riany, Hesti
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 10, No 1: Jurnal Pembelajaran Dan Biologi Nukleus March 2024
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v10i1.5039

Abstract

An indicator of the stability of a community within an ecosystem is diversity of species. The absence of data regarding the species diversity in the campus forest of UIN Sulthan Thaha Saifuddin Jambi prompted the conduct of this study, which aimed to identify tree types and calculate the diversity index and evenness index for the campus forest. To achieve this aim, the research site was selected through the implementation of purposive sampling, whereas the plot was determined through the utilization of systematic sampling. Aside from that, tree data was collected in 22 plots using a quadratic method with dimensions of 20 m x 20 m. The research findings revealed the acquisition of 83 tree species, comprising 30 families and a total of 464/8.62 ha individuals. The species of tree that contains the greatest number of individuals is Ixonanthes sp. The genus Ixonanthes exhibited the greatest INP, which measured 37.64%. At 3.70, the species diversity index (H') indicates a significant degree of diversity across categories. Furthermore, the evenness index (E) acquired a value of 0.84, placing it within the category of high evenness
Structure and Composition Seedling Plant in the Campus Forest of UIN Sulthan Thaha Saifuddin Jambi Nurfadillah, Nurfadillah; Susanti, Try; Manurung, Aini Qomariah; Riany, Hesti
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 9, No 3: Jurnal Pembelajaran Dan Biologi Nukleus November 2023
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v9i3.5041

Abstract

Seedlings are the first stands that grow to replace damaged forest vegetation. Seedlings can have a positive impact on the balance of the wider ecosystem, because seedlings are the beginning of an ecosystem regeneration process that is greatly influenced by that ecosystem The purpose of this research to information regarding the structure and composition of seedling in the UIN Sulthan Thaha Saifuddin Jambi Campus Forest. This research was carried out in July 2022 – March 2023. The research location was determined using the Purposive Sampling Method, determining the plot using systematic sampling, and data collection using the quadratic method with a size of 2 m x 2 m. The observation results were analyzed using the Importance Value Index, Shannon-Winner Diversity Index, Morisita Index, and the Evenness Index. The research results found that there were 332 individuals, 84 types of seedlings, belonging to 28 families. The highest Importance Value Index (INP) is Gmelina arborea Roxb (11.19%), the Diversity Index (H') is in the high category (H' 3.94). The evenness index (E) (0.89) is in the high (even) category.
Co-Authors -, Maison Amanda, Dwi Rahma Ermadani Ermadani Fitratul Aini, Fitratul Khairani Khairani Lucky Zaehir Maulana Madyawati Latief Manurung, Aini Qomariah Nurfadillah Nurfadillah Pebralia, Jesi Samsidar Samsidar Try Susanti Wati, Ayu Widya