Andi Ridwan
Politeknik Pertanian Negeri Pangkajene Kepulauan

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

CENDAWAN MIKORIZA ARBUSKULA PADA RIZOSFER TANAMAN KAKAO ( Theobroma cacao L. ) DI TIPE KEMIRINGAN LAHAN YANG BERBEDA Zahraeni Kumalawati; Andi Ridwan; Kafrawi Kafrawi
Agroplantae: Jurnal Ilmiah Terapan Budidaya dan Pengelolaan Tanaman Pertanian dan Perkebunan Vol 7 No 2 (2018): Agroplantae: Jurnal Ilmiah Terapan Budidaya dan Pengelolaan Tanaman Pertanian dan
Publisher : Jurusan Budidaya Tanaman Perkebunan, Politeknik Pertanian Negeri Pangkajene Kepulauan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (193.674 KB) | DOI: 10.51978/agro.v7i2.27

Abstract

The study aims to determine the potential diversity of arbuscular mycorrhizal fungi in cocoa plants in two different types of slope so that they can be used and developed as biological fertilizers to support cocoa productivity. The method used in this study was exploration method by randomly taking samples of mycorrhizal soil in two locations of community cocoa plantations with different types of land slopes in Polewali Mandar District, West Sulawesi. The wet filtering method was used to isolate mycorrhizal spores from soil samples to obtain mycorrhizal isolates as a source of inoculants. The mycorrhizal isolates obtained were identified based on morphological characters and their abundance in natural habitats was also calculated. The results of the study revealed that arbuscular mycorrhiza associated with cocoa plants in two types of land namely flat land and sloping land consisted of seven types of mycorrhizae belonging to 3 types of genera namely Glomeraceae, Gigasporaceae and Acaulosporaceae. Genus Glomeraceae showed higher dominance than genus Gigasporaceae, but genus Gigasporaceae can be found in both types of land. Arbuscular mycorrhiza whose spore count was limited to Sclerocytis sinousa, Scutellospora sp. and Acaulospora sp.
Eksplorasi dan Skrining Mikroba Pendegradasi Selulosa dan Lignin dari Limbah Kulit Buah Kopi Rahmad D; Nurmiaty; Abdul Mutalib; Andi Ridwan; Syahruni Thamrin; Erna Halid; Andi Besse Poleuleng; Yulius Budi Prastiyo
Jurnal Galung Tropika Vol 15 No 2 (2026)
Publisher : Fakultas Pertanian, Peternakan dan Perikanan Universitas Muhammadiyah Parepare

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31850/jgt.v15i2.1462

Abstract

Coffee cherry waste is a type of agroindustrial residue that contains lignocellulose, making it relatively difficult to decompose naturally. The exploration of lignocellulose-degrading microorganisms is a potential approach to supporting sustainable agricultural waste management. This study aimed to isolate and conduct preliminary screening of microorganisms from coffee fruit peel waste based on qualitative cellulolytic and ligninolytic activities. Microorganism isolation was performed using the serial dilution method and colony purification. Cellulolytic activity was observed based on the formation of a transparent zone on carboxymethylcellulose (CMC) medium, while ligninolytic activity was observed based on a color change on tannic acid medium. The study yielded 29 microbial isolates, consisting of 14 fungal isolates and 15 bacterial isolates. Based on colony morphology, the fungal isolates were tentatively classified into the genera Aspergillus sp., Penicillium sp., and Trichoderma sp., while the bacterial isolates were tentatively classified into the genera Bacillus sp., Azotobacter sp., and Pseudomonas sp. Several groups of isolates showed a positive response to screening for cellulolytic and ligninolytic activity based on visual indicators in the test media. The results of the study indicate that coffee fruit peel waste has the potential to serve as a source of lignocellulolytic microorganisms that can be further investigated through molecular characterization and quantitative enzyme activity analysis.