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All Journal Biogenesis: Jurnal Ilmiah Biologi Jurnal Sumberdaya Hayati Jurnal Biodjati Jurnal Biologi Tropis Journal of BioSustainability
Afri Irawan, Afri
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Environmental Science Immunology & microbiology

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Journal : Journal of BioSustainability

 1 
The Potential of Water Hyacinth (Eichhornia crassipes) for the Phytoremediation of Curug Sigay Domestic Wastewater Using a Retention Pond Polandos, Chersa Steffany; Rizki, Fajri Khoirul; Hendriantika, Ratu Dewi; Nurhaliza, Salma Setia; Sofiah, Siti; Surakusumah, Wahyu; Dewina, Restu Utari; Irawan, Afri
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Publisher : Universitas Pendidikan Indonesia and Konsorsium Biologi Indonesia

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Abstract

The water hyacinth plant (Eichhornia crassipes) is often used for the phytoremediation process. This is because water hyacinth is a plant that is easy to find, besides that water hyacinth is able to grow in polluted waters and is able to produce biomass. This study aims to analyze changes in pH, TDS, temperature and DO levels in domestic wastewater at the Sigay waterfall which was treated with Eichhornia crassipes (water hyacinth) plants with the addition of palm fiber and gravel over a treatment period of 3, 6 and 9 days in retention ponds, as well to determine the optimum time for phytoremediation of Eichhornia crassipes in retention ponds. crassipes (Water hyacinth) during the experiment. The experimental reactor consisted of 3 treatments, namely water hyacinth fiber palm+gravel for 3 days (T-H3), 6 days (T-H6) and 9 days (T-H9) with reactor without treatment as the control. Each reactor is filled with 3L of leachate. The reactor is left in the open and exposed to sunlight. Data were processed using the ANOVA test. The results show a value of P= 0.027 for pH, P=0.026 for temperature, P=0.003 for TDS and 0.066 for the DO test with a value of α=0.05, which indicates that if P0.05 there is a significant difference between each treatment.
Species Diversity of Lichens in Curug Sadim, Sagalaherang District, Subang, West Java Susanto, Hawa Hafifah Putri; Khalidazia, Khaila; Septiano, Fadlan; Husin, Husin; Gumelar, Indra Surya; Falah, Nazwa Rakhma; Amalia, Fauziah Husna; Irawan, Afri
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Publisher : Universitas Pendidikan Indonesia and Konsorsium Biologi Indonesia

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Despite its ecological significance, including its function as a sink for pollutants, a provider of oxygen, and a bioindicator of air quality, a comprehensive study of lichen diversity in Subang, West Java, has not been conducted. The objective of this study is to analyze the diversity of lichen found in the Curug Sadim natural tourism area, Subang. Data collection was carried out through the implementation of the cruising method at three observation stations. The results of this study indicated the presence of ten lichen species, classified into eight families, Namely Caloplaca sp. (Teloschistaceae), Cladonia sp. (Cladoniaceae), Cryptothecia scripta (Arthoniaceae), Cryptothecia striata (Arthoniaceae), Dirinaria sp. (Caliciaceae), Flavoparmelia caperata (Parmeliaceae), Graphis scripta (Graphidaceae), Leptogium cyanescens (Collemataceae), Parmotrema hypotropum (Parmeliaceae), and Phlyctis sp. (Phlyctidaceae). These lichen species are found attached to substrates such as trees and rocks, and they exhibit various thalus types, including fruticose, crustose, and foliose. The presence of lichen with high variation indicates that the environment of Curug Sadim is relatively clean and supports the survival of bioindicator organisms. These findings are of significant importance in light of their contribution to our understanding of local biodiversity and the potential of lichen as a bioecological indicator in monitoring environmental quality.
Identification of the Effect of Leaf Age on the Photosynthesis Rate of the Guava (Psidium guajava) Alyasa, Rahadian Rasyid; Anjani, Nabilah; Tamasowa, Revalina Caroline; Khamilah, Risya Jheniar Nur Siti; Nilawati, Tina Safaria; Irawan, Afri
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Publisher : Universitas Pendidikan Indonesia and Konsorsium Biologi Indonesia

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Abstract

The primary factor influencing photosynthesis is the presence of chlorophyll pigment. The objective of this study was conducted to identify the impact of leaf age on the rate of photosynthesis and to elucidate the correlation between the level of chlorophyll content in leaves of varying ages and the aforementioned rate. This was achieved through the utilisation of the FLDA (Floating Leaf Disk Array) method. Furthermore, the chlorophyll content measurement method was employed. The FLDA test results demonstrated that old leaves exhibited a higher rate of photosynthesis, potentially due to the elevated chlorophyll level in old leaves relative to young leaves, which averaged ±4,791 mg/ml and ±1,345 mg/ml, respectively. These findings substantiate the existence of a correlation between leaf age and the rate of leaf photosynthesis.
Co-Authors Alyasa, Rahadian Rasyid Amalia, Fauziah Husna Amelia Qodaryanti, Amelia Anjani, Nabilah Dewina, Restu Utari Falah, Nazwa Rakhma Gumelar, Indra Surya Hendriantika, Ratu Dewi Husin Husin, Husin Istanti, Edwina Khalidazia, Khaila Khamilah, Risya Jheniar Nur Siti maulana, lana Nina Ratna Djuita NUNIK SRI ARIYANTI Nurhaliza, Salma Setia Polandos, Chersa Steffany Rizki, Fajri Khoirul Septiano, Fadlan Siti Sofiah Surtikanti Hertien Koosbandiah, Surtikanti Susanto, Hawa Hafifah Putri Tamasowa, Revalina Caroline TATIK CHIKMAWATI Tina Safaria Tina Safaria Nilawati Wahyu Surakusumah Yulianty, Nurfitri Yusuf, Ayda Trisnawaty