Article Per Year (5 Year)
p-Index From 2020 - 2025
0.61
P-Index
This Author published in this journals
All Journal HAYATI Journal of Biosciences PUCUK : Jurnal Ilmu Tanaman Edusifa: Jurnal Pendidikan Islam
Nurhakiki
Unknown Affiliation
Religion Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Education Social Sciences

Published : 3 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 3 Documents
Search

 1 
Catatan Keberadaan Gymnopilus cf. josserandii di Hutan Kampus IPB University, Bogor, Jawa Barat, Indonesia Ira Meylan Nafarah Rakhman; Nurhakiki; Ivan Putra
PUCUK : Jurnal Ilmu Tanaman Vol 3 No 2 (2023): Desember
Publisher : Fakultas Pertanian Universitas Ratu Samban

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58222/pucuk.v3i2.206

Abstract

Gymnopilus termasuk jamur saprob yang dapat ditemukan pada kayu lapuk. Gymnopilus termasuk ke dalam Basidiomycota, Agaricales, dan Strophariceae dimana informasi mengenai taksonomi jamur ini masih jarang di Indonesia. Tujuan penelitian ini adalah mengidentifikasi secara morfologi jamur Gymnopilus disekitar hutan kampus IPB sehingga dapat menambah data keragaman jamur di Indonesia. Metode yang digunakan dalam penelitian ini menggunakan opportunistic sampling. Metode ini tidak menggunakan transek dalam pencarian jamur, namun menggunakan titik koordinat untuk lokasi ditemukannya jamur. Pengamatan morfologi jamur dilakukan dengan makroskopis dan mikroskopis. Hasil pengamatan dalam bentuk deskripsi kemudian dijadikan acuan untuk identifikasi sampel yang dikoleksi. Spesimen yang dikoleksi diidentifikasi sebagai Gymnopilus cf. josserandii. Spesimen yang didapatkan menunjukkan bagian tudung berwarna kecokelatan dengan adanya bintik-bintik berwarna cokelat tua. Lamella berwarna cokelat tua dengan tekstur halus dan seperti lembaran-lembaran tissue, tubuh buahnya berdaging, dan warna dominan pada jamur ini adalah kecokelatan. Pengamatan mikroskopis menunjukkan basidiospora halus dan berukuran 5,95 x 3,85 µm dengan bentuk lonjong hingga elips. Secara morfologi jamur yang ditemukan memiliki kemiripan dengan G. lepidotus. Namun, G. lepidotus memiliki spora dengan permukaan kasar dan memilki granul pada bagain dalam spora dan basidianya. Penelitian lebih lanjut dengan menggunakan pendekatan molekuler diperlukan untuk melihat kekerabatan spesimen yang ditemukan pada penelitian ini dengan spesimen lain dari seluruh dunia.
Characteristics of Nitrogen-Fixing Bacteria Isolated from the Rhizosphere at Kaolin Lake, Belitung, Indonesia Nurhakiki; Rusmana, Iman; Astuti, Rika Indri
HAYATI Journal of Biosciences Vol. 32 No. 3 (2025): May 2025
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.4308/hjb.32.3.611-622

Abstract

Former kaolin mining has poor physical and chemical properties for plants. The low nutrient content makes difficult for plants to grow. Nitrogen (N2) is an important macronutrient for plants, but it can only be absorbed in the form of ammonium ions (NH4+) or nitrate ions (NO3-­). Therefore, it is necessary to transform nitrogen, which is able to change the molecular form so that it can be absorbed by plants. The strategy that can be done is using nitrogen-fixing bacteria. This study aimed to explore and analyze the diversity of nitrogen-fixing bacteria based on 16S rRNA and nifH gene from the rhizosphere of the Kaolin Lake area. The method started with bacterial isolation from rhizosphere soil samples. Selected isolates were tested for ammonium content to determine the ability of isolates to fix nitrogen. In this study, 13 isolates had the ability to fix nitrogen, two of which had a high ammonium concentration, namely RBN 5.6, and RBA 2.3. The highest ammonium concentration was produced by isolate RBN5.6 amounting to 7.55 μg/ml. Based on 16S rRNA gene identification, isolate RBN5.6 was similar to Burkholderia cepacia and isolate RBA2.3 was similar to Bacillus aquimaris. Based on the detection of the nifH gene, isolate RBN5.6 was identified as a protein-encoding dinitrogenase reductase gene group cluster from the Stutzerimonas stutzeri.
Analisis Kompetensi Tenaga Tata Usaha Untuk Meningkatkan Kualitas Administrasi Sekolah Di SD Satit Phatnawitya Thailand Nurhakiki; Ramlah, Siti
Edusifa: Jurnal Pendidikan Islam Vol. 9 No. 3 (2023): Edusifa : Jurnal Pendidikan Islam
Publisher : STIT Sirojul Falah Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56146/edusifa.v9i3.157

Abstract

This study aims to describe the competence of administrative staff in improving the quality of education administration at Satit Phatnawitya Elementary School in Thailand. The type of this research is descriptive qualitative which describes and examines the real conditions of the object of research based on authentic data collected. The research subjects consisted of the principal, 2 administrative staff, 5 teachers and 3 students. Data collection techniques using observation, interviews and documentation. The results of this study indicate that: the competence of administrative staff at SD Satit Phatnawitya Thailand in carrying out their duties can be carried out properly. Be it personal competence, social competence, and managerial competence. However, it still needs to be improved regarding technical competence, especially with regard to the efficiency of working time, this is because the quantity of administrative staff is still lacking. In addition, they also double as an educator (teacher) this is what causes the quality of performance to not be carried out optimally. As for the efforts made to improve the quality of education administration, they try to do excellent service by doing work outside working hours (overtime) to complete tasks. In addition, they also prioritise and establish good cooperation by filling each other's shortcomings between colleagues (administrative staff).
Co-Authors Iman Rusmana Ira Meylan Nafarah Rakhman Ivan Putra Rika Indri Astuti Siti Ramlah, Siti