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All Journal Jurnal Lahan Suboptimal IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) AGRISAINTIFIKA Jurnal Ilmu-ilmu Pertanian Jurnal Pembelajaran Biologi : Kajian Biologi dan Pembelajarannya Planta Simbiosa : Jurnal Tanaman Pangan dan Hortikultura Jurnal Riset Perkebunan (JRP) Bumi: Jurnal Hasil Kegiatan Sosialisasi Pengabdian Kepada Masyarakat
Siti Rakhmi Afriani
Politeknik Negeri Sriwijaya
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Education Environmental Science Immunology & microbiology Materials Science & Nanotechnology Public Health Social Sciences

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Pemanfaatan Limbah Organik dalam Pembuatan Bioinsektisda berbasis Bacillus thuringiensis sebagai Agens Pengendalian Hama Tanaman Caisim Brassica juncea Dessy Tri Astuti; Nurhayati Damiri; Yulia Pujiastuti; Siti Rakhmi Afriani
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 7 No. 2 (2018): JLSO
Publisher : Research Center for Sub-optimal Lands (PUR-PLSO), Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (715.623 KB) | DOI: 10.33230/JLSO.7.2.2018.350

Abstract

Astuti et al, 2018. Utilization of Organic Waste in the Making of Bacillus thuringiensis-based Bioinsecticides as Agents for Control of Caisim Brassica juncea Pests. JLSO 7(2):136-143. Bacillus thuringiensis was one of the entomopathogenic bacteria that can produces toxic crystal proteine (ᴕ-endotoksin). The use of bioinsecticide as a biological agent in pest control was one component of integrated pest control (IPM). The aimed of this reseacrh was to know the population of pests in plants and the percentage of damage to plants that exist in each treatment. The research was conducted in a vegetable garden in the Banyuasin district in November 2017 until January 2018. The research method used a randomized block design with 5 treatments and 4 blocks. The treatment was Bacillus thuringiensis KJ3R5 cultured in coconut water and rice washing water  (A), Bacillus thuringiensis LC2 cultured in coconut water and tofu wastewater (B), commercial Bacillus thuringiensis (C), inorganic insecticide (sidametrin) (D), and water as control (E). The variables observed were arthropod populations on the canopy and ground surface of choy sum (Brassica rapa var. parachinensis or Brassica chinensis var. parachinensis) plants. The results showed that 4 species of pests i.e. Pyllotreta crucifera, Spodoptera litura, Plutella xylostella, and Helula sp. Treatment with Bacillus thuringiensis LC2 (B) resulted in reduction of plant damage by 61%.
PENGARUH EKSTRAK DAUN SIRIH (PIPER BETTLE LINN.)TERHADAP EFEK SEDASI MENCIT (MUS MUSCULUS L.)DAN SUMBANGANNYA PADA PEMBELAJARAN BIOLOGI SMA Siti Rakhmi Afriani; Riyanto Riyanto; Kodri Madang
Jurnal Pembelajaran Biologi: Kajian Biologi dan Pembelajarannya Vol 3, No 1 (2016)
Publisher : Program Studi Pendidikan Biologi, Fakultas Keguruan dan Ilmu Pendidikan, Universitas Sriwi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/fpbio.v3i1.4964

Abstract

Abstract: This study research aims to determine the effect of extracts of betel leaf (Piper bettle Linn.) For sedation mice (Mus musculus L.). The method is used the experimental method with completely randomized design (CRD), which consists of 4 treatments and 6 replications. The treatment consisted of a negative control group (distilled water), and three groups of mice were given extracts of betel leaf with each dose of 0.5 mg / 10 gBW, 1 mg / 10 gBW, and 2 mg / 10 gBW. Data were analyzed by calculating the Diversity Analysis and continued with Test BNT. To decrease muscle power with Traction Test method, then a decreased activity and sensitivity to the environment with Fireplace Test method. Diversity analysis results indicate that the betel leaf extract significant effect on the increase in sedation mice, decreased muscle power, then a decreased activity and sensitivity to the environment with Fireplace Test method. BNT test results show that betel leaf extract dose of 0.5 mg / 10 gBW is the most effective dose in mice increases sedation. Information on the results of this study can be alternatif examples for learning and teaching material and contribution to the Learning Class XI Biology Semester II Basic Competence 3.10. Key Words:Piper bettle Linn., Sedation, Mus musculus L.
Evaluasi Frekuensi Penanaman Tanaman Semangka (Citrullus lanatus) Terhadap Keparahan Penyakit dan Produktivitas Tanaman Semangka: Evaluation of Planting Frequency of Watermelon (Citrullus lanatus) Plants on Disease Severity and Productivity of Watermelon Rizky Randal Cameron; Siti Rakhmi Afriani; Zuhri Multazam; Stenia Ruski Yusticia; Astri Febriani; Robi Saputra
Planta Simbiosa Vol 5 No 2 (2023)
Publisher : Politeknik Negeri Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Watermelon (Citrullus lanatus) is a high-value crop that has been commercially cultivated both in the world and in Indonesia. Many factors affect the productivity of watermelon plants such as land use frequency and plant disease attack. The purpose of this study was to determine the severity of disease in 2 fields with different frequency of planting and the productivity in each of these fields. This research was conducted in June-August 2023 in Tanjung Laut Village, Suak Tapeh District, Banyuasin Regency. The method used in this research is survey method with sampling technique using Simple Random Sampling by taking 216 samples on each land. There were 2 fields used, namely field 1 which was the first time watermelon plants were planted and field 2 which had been planted with watermelon for 3 times (this research was the third time planting). The planting distance used was 0.6 x 4.5 (m). The results of this study are diseases that often attack watermelon plants in this study are anthracnose disease caused by Colletotrichum orbiculare, Cercospora disease caused by Cercospora citrullina, fusarium wilt disease caused by Fusarium sp. and yellow creeping disease. The percentage of anthracnose disease attack in this study was 98.99% in field 1 and in field 2 was 99.06%, which was not significantly different in the T test (P-value 0.93), while the severity of anthracnose disease in field 1 was 46.48% and in field 2 38.99 (P-value 0.0001). Fusarium wilt was the most alarming disease in field 1 at 31.48% and in field 2 at 13.43%. There was an association between the frequency of watermelon planting and the incidence of fusarium wilt disease (P-value 0.00001). Productivity of watermelon plants in field 1 averaged 4.04kg/plant or 14.5 tons/ha while field 2 had a productivity of 5.02/plant or 17.9 tons/ha. The T-test results showed a significant difference between land 1 and land 1 (P-value 0.00003).
Soap Production from Waste Cooking Oil: A Review Ahadito, Bijak Riyandi; Afriani, Siti Rakhmi
IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Vol 9, No 2 (2024): June 2024
Publisher : IJFAC (Indonesian Journal of Fundamental and Applied Chemistry)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24845/ijfac.v9.i2.96

Abstract

In the process of cooking, chemical reactions that happen to the vegetable oil render it unfit for consumption after multiple reusage, thus turning the oil into waste. Due to the abundance of such waste, it is important to have an easy way to turn waste cooking oil into another useful commodity. Production of soap is one of such method that could be widely applied by the public due to the easiness of its procedures and no involvement of hazardous chemical, in contrast to the production of biodiesel or biofuel which sometimes demands the use of unsafe materials or conditions. The objective of this publication is to provide information about the differences between unused and used cooking oil, to lay out the methods of soapmaking, to review the academic reports of soapmaking from waste cooking oil, and to summarize the challenges that are still unsolved in this topic.
Aplikasi Beberapa Jenis Pupuk terhadap Pertumbuhan Bibit Kelapa Sawit pad Fase Pre Nursery Afriani, Siti Rakhmi; Cameron, Rizky
J-Plantasimbiosa Vol 6 No 2 (2024)
Publisher : Politeknik Negeri Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jplantasimbiosa.v6i2.3509

Abstract

Fertilisation in the pre-nursery phase of oil palm plants is very important. Fertilisation can increase the growth of oil palm seedlings, make plants healthy, etc. The purpose of this research is to see the effect of each fertiliser used on several growth parameters of oil palm seedlings. The purpose of this research is to see the effect of each fertiliser used on several growth parameters of oil palm seedlings. the method used in this research is a group randomised design with 5 treatments and 10 replicates. The treatments/fertilisers used in this study were urea fertiliser, P fertiliser, NPK fertiliser, and oragnik cari fertiliser made from active mycorrhiza. The parameters observed were plant height, plant diameter, and leaf length of oil palm seedlings. observations were made every week with a frequency of 3 observations. the results of this study are that each fertiliser has a different effect on each observation parameter and frequency of observation. NPK fertiliser and urea fertiliser were significantly different from other treatments in the first observation of plant height. While in plant diameter, liquid fertiliser made from active mycorrhiza tends to be significantly different from other treatments. In leaf length, the results showed an irregular pattern. However, in the mycorrhizal fertiliser treatment, the number of leaves exceeded 1 of the other treatments.
Sosialisasi Pengetahuan Jamur Akar Putih pada Tanaman Karet kepada Masyarakat Petani Karet di Banyuasin III, Sumatera Selatan Stenia Ruski Yusticia; Astri Febrianni; Rizky Randal Cameron; Rosita Rosita; Siti Rakhmi Afriani
Bumi : Jurnal Hasil Kegiatan Sosialisasi Pengabdian kepada Masyarakat Vol. 2 No. 3 (2024): Bumi: Jurnal Hasil Kegiatan Sosialisasi Pengabdian kepada Masyarakat
Publisher : Asosiasi Riset Teknik Elektro dan Informatika Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/bumi.v2i3.210

Abstract

White root disease is a major disease threatening the productivity of rubber plants. The community’s knowledge about White root disease is still limited, especially in recognizing early symptoms and its impact on rubber plants. Therefore, this community service activity aims to socialize knowledge about White root disease to the rubber plantation community in Banyuasin III, South Sumatra. This activity involves a series of counseling and interactive discussions about White root disease, including the introduction of symptoms, impacts on plants and the environment, and the importance of early detection. In addition, this activity also involves field demonstrations on how to identify White root disease symptoms in rubber plants. The results of this activity show an increase in community knowledge and awareness about White root disease. The community has become more capable of recognizing the early symptoms of White root disease and understanding the importance of early detection to prevent further spread. This activity contributes positively to the efforts of sustainable rubber plant management in Banyuasin III, South Sumatra.
ANALYSIS OF THRESHOLD INTENSITY OF LEAF SPOT INFESTATION CAUSED BY CURVULARIA SPP. ON OIL PALM SEEDLINGS Cameron, Rizky Randal; Yusticia, Stenia Ruski; Afriani, Siti Rakhmi; Febrianni, Astri
Agrisaintifika: Jurnal Ilmu-Ilmu Pertanian Vol. 9 No. 3 (2025): Agrisaintifika
Publisher : Universitas Veteran Bangun Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32585/ags.v9i3.6657

Abstract

Oil palm is a very important crop economically for Indonesia. However, in oil palm nurseries, there is a disease that can interfere with the growth of oil palm seedlings, namely brown spot disease caused by the pathogen Curvularia sp. The purpose of this study was to determine the potential inhibition of oil palm seedling growth by Curvularia at various scoring levels of the intensity of attack of this disease. The method used in this study was a group randomized design with 6 scoring levels as treatments and 5 replicates at 3, 4, 5 and 6 months of age and 10 replicates at 7, 8, 9 and 10 months of age. The scoring levels were grouped into 1 = 0%, 2 = 1-20%, 3 = 20.1-40%, 4 = 40.1-60%, 5 = 60.1-80% and 6 = >80%. The observation parameters of this study were diameter, plant height, and number of leaves. Data were analyzed using anova and further tests using the BNJ test. The results showed the occurrence of growth inhibition at each age of oil palm seedlings both in diameter, height, and number of leaves of oil palm seedlings. However, not all levels of attack showed significant differences. The highest level of inhibition of Curvularia attack at the age of 10 months.
Comparison of Fresh Palm Fruit Bunch Production Estimates using The Black Bunch Fruit Census Method Between The Costarica and Sriwijaya Varieties Maulana, Abbi; Afriani, Siti Rakhmi; Junainah; Yusticia, Stenia Ruski; M. Rezky Galang; Bagas Saputra
Jurnal Riset Perkebunan Vol. 6 No. 2 (2025): Jurnal Riset Perkebunan (JRP)
Publisher : Jurusan Budidaya Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrp.6.2.85-91.2025

Abstract

Palm oil is a strategic commodity that plays an important role in supporting Indonesia's economic growth. In several companies, different oil palm varieties are cultivated, including Costarika and Sriwijaya 1. Production fluctuations among these varieties underscore the importance of applying the black bunch census method in yield estimation. This study aims to estimate the future production of Fresh Fruit Bunches (FFB) between the Costarika and Sriwijaya 1 varieties. The research method employed was the black bunch census conducted on both varieties (Costarica and Sriwijaya 1). The observed parameters included the average bunches per palm and tonnage of the two varieties. Data analysis was performed using normality tests and independent t-tests. The results showed that the Sriwijaya 1 variety had the highest average bunches per palm at 4.36 and the highest production tonnage at 181,684 kg. However, further independent t-tests indicated that there was no significant difference between the Costarika and Sriwijaya 1 varieties in terms of average bunches per palm and total tonnage produced.
Co-Authors Astri Febriani Astri Febrianni Bagas saputra Bijak Riyandi Ahadito Cameron, Rizky Dessy Tri Astuti Febrianni, Astri Junainah Kodri Madang Laksono Trisnantoro M. Rezky Galang Maulana, Abbi Nurhayati Damiri Riyanto Riyanto RIZKY RANDAL CAMERON RIZKY RANDAL CAMERON, RIZKY RANDAL Robi Saputra Rosita Rosita Stenia Ruski Yusticia YULIA PUJIASTUTI Yusticia, Stenia Ruski Zuhri Multazam