Garuda - Garba Rujukan Digital

Identification of the Distribution of Asian Redtail Catfish (Hemibagrus nemurus) Based on Geographical Information Systems (GIS) in the Progo River, Magelang, Central Java Tholibah Mujtahidah; Usman Siswanto; Sri Hidayati; Abdul Qadir Jailani
Journal of Aquaculture Science Vol 6 No 1 (2021): Journal of Aquaculture Science
Publisher : Airlangga University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31093/joas.v6i1.125

Identification of the distribution of asian redtail catfish (Hemibagrus nemurus) based on Geographical Information System (GIS) in the Progo Magelang river is a database collection process to determine the distribution patterns of H. nemurus and determine H. nemurus resources with the help of GIS and outlined in the form of a fish resource zoning map so that it can help in domestication efforts that lead to the cultivation of endemic aquatic commodities. The purpose of this study was to identify the distribution of H. nemurus, determine the status of H. nemurus resources based on diversity data to see the existing potential and to describe it in the form of a fish resource zoning map in the progo river. The research method used was a survey method with a GIS approach and the data presented in the form of descriptive analysis included fish identification and a GIS approach. GIS data processing used is in the form of hardware, namely: Personal Computer (PC), color printer and scanner, while the software in the form of software ArcGIS 9.x, Ms. Excel and Ms. Word. The method used in this study is the GIS approach with spatial analysis techniques, namely the techniques used in analyzing spatial / spatial studies. Based on the results of the study, it was shown that H. nemurus in the Progo river were found in areas with sandy clay substrates at a depth of 2 m, namely in the Ngeluwar area. The distribution of H. nemurus in the Progo river tends to be evenly distributed, because the conditions of the Progo river habitat support the life of H. nemurus.Keywords: Hemibagrus nemurus, Geographical Information System, Progo River.

The Study of Artemisinin Content in Callus Artemisia annua L. Cultures Elicited with Endophytic Fungi Aspergillus sp. Farida Yuliani; Widyatmani Sih Dewi; Ahmad Yunus; Usman Siswanto
Molekul Vol 13, No 2 (2018)
Publisher : Universitas Jenderal Soedirman

Artemisinin, is a sesquiterpene lactone which is originally extracted from the medicinal plant Artemisia annua L. Artemisinin is a very effective antimalarial agent, however it is produced in very low amounts in plants. Chemical synthesis of artemisinin is complicated and not economically feasible. Researchers often use elicitation methods to increase artemisinin content in a laboratory scale with biotic or abiotic elicitor. This study examined the effect of elicitation using endophytic fungi Aspergillus sp on artemisinin content of callus A. annua cultures. Observations were made on its growth, texture and color, chlorophyll content and dry weight. Fungi were isolated from the stem tissue of A. annua and callus were grown on Murashige and Skoog medium. After 3 weeks of incubation, callus treated with four different elicitors concentration (0, 2, 4, 6 mg/mL). There were significant alterations on callus culture in terms of growth, texture, color and chlorophyll content after elicitation. The results clearly demonstrated that the endophytic fungal elicitor Aspergillus sp could increase artemisinin content but did not affect the callus dry weight of A. annua. The treatment of 4 mg/mL elicitor produced the highest artemisinin content, that increased 7.6 times compared to the control, from 0.0036% to 0.0275%.

EFEKTIVITAS DEKOMPOSER DAN KONSENTRASI PUPUK ORGANIK CAIR LIMBAH KUBIS PADA TANAMAN SELADA (Lactuca sativa L.) Raden Arya Laksamana Yudha; Usman Siswanto; Putri Laeshita
JURNAL VIGOR Vol 7, No 1 (2022): VIGOR: JURNAL ILMU PERTANIAN TROPIKA DAN SUBTROPIKA
Publisher : Universitas Tidar

This research was conducted to determine the effectiveness of the type of decomposer and liquid organic fertilizer concentration of cabbage waste material on the growth and yield of lettuce This experiment was arranged in bifactorial randomized block design arranged with three replications. The first factor was the type of cabbage waste material of liquid organic fertilizer decomposer consisting of control, Thiobacillus sp., indigenous microorganisms (IMO), and Effective Microorganisme-4. The second factor was the difference in liquid organic fertilizer concentrations of cabbage waste material consisting of 10 mL/L, 20 mL/L, and 30 mL/L. The observed variables included the number of leaves, leaf length, leaf fresh weight, leaf dry weight, root fresh weight, root dry weight, and root length. No significant difference was found with the application of liquid organic fertilizer with a type of decomposer and concentration of cabbage waste material on the whole observed variables. The application liquid organic fertilizer concentration of cabbage waste material waste did not respond to the growth and yield of lettuce plants on the parameters of the number of leaves, leaf length, leaf fresh weight, leaf dry weight, root fresh weight, root dry weight and root length. There was no interaction between the type decomposer and the liquid organic fertilizer of cabbage waste material on the growth and yield of lettuce. Based on the results of the research that has been carried out, it can be suggested that further research is needed on the length of the fermentation process in liquid organic fertilizer of cabbage waste material.

UJI EFEKTIVITAS KONSENTRASI EKSTRAK DAUN SIRIH DAN DAUN MENGKUDU TERHADAP PENYAKIT ANTRAKNOSA PADA KOMODITAS CABAI RAWIT SECARA IN VITRO Ririn Vian Herviana; Usman Siswanto; Putri Laeshita
Jurnal Agrivet Vol 28, No 2 (2022): AGRIVET
Publisher : UNIVERSITAS PEMBANGUNAN NASIONAL ”VETERAN” YOGYAKARTA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/agrivet.v28i2.8253

Antraknosa merupakan penyakit penting pada cabai dan apabila dibiarkan dapat mengurangi hasil panen. Daun sirih dan mengkudu kaya akan bahan aktif yang bersifat antifungal sehingga dapat digunakan untuk menekan penyakit tersebut. Tujuan Penelitian ini yakni menguji manfaat ekstrak daun sirih dan daun mengkudu pada beberapa konsentrasi dalam menghambat pertumbuhan jamur Colletotrichum sp. Penelitian dilaksanakan di laboratorium dengan menggunakan percobaan faktorial (2x5) yang disusun dalam Rancangan Acak Lengkap (RAL). Penelitian dilakukan secara in vitro dengan metode peracunan media tumbuh PDA (Potato Dextrose Agar) dengan bahan ekstrak sesuai dengan konsentrasi yang telah ditentukan yaitu 0, 3, 6, 9 dan 12 %, selanjutnya jamur Colletotrichum sp. diinokulasi pada media tumbuh. Data dianalisis menggunakan sidik ragam dan diuji lanjut Orthogonal Polynomial dan Least Significant Difference (LSD). Hasil penelitian menunjukkan bahwa semakin tinggi konsentrasi ekstrak semakin efektif kandungan senyawa aktif dalam ekstrak daun sirih dan daun mengkudu. Interaksi antara keduanya mampu menurunkan diameter koloni, kerapatan spora dan meningkatkan daya hambat. Berdasarkan penelitian dapat disimpulkan bahwa kandungan senyawa aktif dari ekstrak daun sirih dan daun mengkudu mampu menekan pertumbuhan jamur Colletotrichum sp. hingga 12%.

Identification of the Distribution of Asian Redtail Catfish (Hemibagrus nemurus) Based on Geographical Information Systems (GIS) in the Progo River, Magelang, Central Java Tholibah Mujtahidah; Usman Siswanto; Sri Hidayati; Abdul Qadir Jailani
Journal of Aquaculture Science Vol 6 No 1 (2021): Journal of Aquaculture Science
Publisher : Airlangga University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31093/joas.v6i1.125

Identification of the distribution of asian redtail catfish (Hemibagrus nemurus) based on Geographical Information System (GIS) in the Progo Magelang river is a database collection process to determine the distribution patterns of H. nemurus and determine H. nemurus resources with the help of GIS and outlined in the form of a fish resource zoning map so that it can help in domestication efforts that lead to the cultivation of endemic aquatic commodities. The purpose of this study was to identify the distribution of H. nemurus, determine the status of H. nemurus resources based on diversity data to see the existing potential and to describe it in the form of a fish resource zoning map in the progo river. The research method used was a survey method with a GIS approach and the data presented in the form of descriptive analysis included fish identification and a GIS approach. GIS data processing used is in the form of hardware, namely: Personal Computer (PC), color printer and scanner, while the software in the form of software ArcGIS 9.x, Ms. Excel and Ms. Word. The method used in this study is the GIS approach with spatial analysis techniques, namely the techniques used in analyzing spatial / spatial studies. Based on the results of the study, it was shown that H. nemurus in the Progo river were found in areas with sandy clay substrates at a depth of 2 m, namely in the Ngeluwar area. The distribution of H. nemurus in the Progo river tends to be evenly distributed, because the conditions of the Progo river habitat support the life of H. nemurus.Keywords: Hemibagrus nemurus, Geographical Information System, Progo River.

Pengaruh Pemberian Pupuk Organik Cair Darah Sapi terhadap Hasil Tanaman Ubi Kayu Varietas Ketan Novianto, Esna Dilli; Oktasari, Wike; Syarifuddin, Syarifuddin; Siswanto, Usman; Anindyawati, Nurul
AGRIUM: Jurnal Ilmu Pertanian Vol 27, No 2 (2024)
Publisher : UNIVERSITAS MUHAMMADIYAH SUMATERA UTARA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/agrium.v27i2.16816

Pemupukan merupakan salah satu aktivitas penting dalam budidaya ubi kayu. Ironisnya aplikasi pupuk anorganik yang berlebihan ternyata berdampak negatif pada pertumbuhan tanaman. Pupuk Organik Cair (POC) dapat menjadi salah satu solusi untuk menggantikan pupuk anorganik. Namun, penggunaannya pada tanaman ubi kayu belum pernah dilaporkan. Penelitian ini bertujuan untuk mendapatkan dosis dan interval waktu pemberian POC yang tepat untuk meningkatkan hasil tanaman ubi kayu varietas ketan (Manihot esculenta Crantz.). Penelitian ini menggunakan rancangan acak kelompok lengkap dengan 2 faktor dan 3 ulangan sebagai blok. Faktor pertama adalah dosis POC darah sapi (0, 10, 20, dan 30 ml/tanaman), sedangkan faktor kedua adalah interval waktu pemberian POC darah sapi (3 minggu sekali, 6 minggu sekali, dan 9 minggu sekali). Data pengamatan diuji signifikansinya menggunakan analisis sidik ragam. Hasil penelitian menunjukkan bahwa semua perlakuan tidak memberikan pengaruh signifikan terhadap seluruh parameter pengamatan. Hal tersebut dikarenakan kandungan unsur hara POC darah sapi yang belum mencukupi kebutuhan tanaman, sifat POC yang mudah tercuci dan menguap, penyiraman yang tidak optimal, volume pengaplikasian yang terlalu sedikit, dan rentang waktu pemberian yang terlalu lama sehingga menyebabkan terganggunya perkembangan umbi. Dapat disimpulkan bahwa pemberian POC darah sapi pada penelitian ini belum mampu meningkatkan hasil tanaman ubi kayu.

ANTIMALARIAL MEDICINAL PLANTS USED BY TRADITIONAL HEALERS IN BENGKULU PROVINCE OF INDONESIA Susanti, Dian; Putra, Aditya Dwi Permana; Safrina, Devi; Wijaya, Nur Rahmawati; Adi, M Bakti Samsu; Mujahid, Rohmat; Rukmana, Rizal Maarif; Subositi, Dyah; Haryanti, Sari; Siswanto, Usman; Widiyastuti, Yuli
BIOTROPIA Vol. 31 No. 3 (2024): BIOTROPIA Vol. 31 No. 3 December 2024
Publisher : SEAMEO BIOTROP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11598/btb.2024.31.3.2318

Article Highlights- This research provides information on the use of medicinal plants for treating malaria among ethnic groups in Bengkulu Province.- This research was part of RISTOJA (Research on Medicinal Plants), national research conducted by the Ministry of Health of the Republic of Indonesia.- Several compounds found in medicinal plants used by traditional healers in the Bengkulu Province have been scientifically proven to be effective as antimalarial medication.AbstractMalaria is a disease with a high mortality rate and is still a significant problem in Indonesia and globally. One of the provinces in Indonesia that uses a diversity of medicinal plants to treat malaria is Bengkulu Province. This research aims to inventory and evaluate the use of medicinal plants as malaria drugs in Bengkulu Province. The research methods used were observation, interviews, and the collection of samples. Respondents were traditional healers from seven ethnic groups in Bengkulu. Plant species, use value (UV) parameters, fidelity level (FL), family use value (FUV), relative frequency of citation (RFC), and plant parts value (PPV) were analyzed. This study found 32 specific herbal concoctions and identified the use of 47 plant species in 28 families used by 20 healers in 6 ethnic groups of Bengkulu. The species Carica papaya, Peronema canescens, and Tinospora crispa have the highest use value, fidelity level, and relative frequency of citation. The Lamiaceae and Caricaceae families have the highest family use value (0.15). The leaves (43.9%) and barks (13.6%) were the most frequently utilized parts of medicinal plants to overcome malaria. Decoction was the method most widely used by traditional healers in Bengkulu to prepare conventional medicine formula.

Analisis dan Korelasi Genetik Pertambahan Sifat Agronomi Dengan Sifat Fisiologi Kopi Arabika Sumatera Budidaya Kawasan Pesisir Alnopri, Alnopri; Siswanto, Usman; Nurjannah, Uswatun; Panjaitan, Amisah Patel
Seminar Nasional Lahan Suboptimal Vol 12, No 1 (2024): Vol 12, No 1 (2024): Prosiding Seminar Nasional Lahan Suboptimal ke-12 “Revital
Publisher : Pusat Unggulan Riset Pengembangan Lahan Suboptimal (PUR-PLSO) Universitas Sriwijaya

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

Alnopri, A., Nurjanah, S. U., Panjaitan, A. P. (2024). Genetic analysis and correlation of agronomic traits with physiological traits of sumatra arabica coffee cultivated in coastal Areas. In: Herlinda S et al. (Eds.), Prosiding Seminar Nasional Lahan Suboptimal ke-12 Tahun 2024, Palembangg 21 Oktober 2024. (pp.591–599). Palembang: Penerbit & Percetakan Universitas Sriwijaya (UNSRI).The coastal area is a transitional, namely the land is still influenced by marine activities, such as tides, sea breezes and saltwater seepage. Arabica coffee on Sumatra Island is cultivated in the highlands, namely in the Bukit Barisan Area. The Acc Research Land (Alnopri Coffee Centre) is located in a coastal area with an altitude of 10 meters above sea level. Acc land have a experimental garden arranged with a Randomized Block Design, by planting 9 genotype of Arabica Coffee from Sumatra Island and repeated 3 times. The long-term goal is to obtain information on adaptive genotype of cultivation in coastal areas. This experiment was conducted to determine growth patterns, analysis and genetic correlation of increase in agronomic and physiological traits. The study was carried out in the immature plant phase for two years, namely the 2023 dry season and the 2024 rainy season. The analysis carried out was by analysis of variance and analysis of covariance. The results of the study showed that the growth pattern was normal and had increased from the previous year, the increase in the number of leaves and chlorophyll content differed between genotypes, and the genetic correlation between the increase in agronomic traits and physiological traits with a very weak to strong relationship. The conclusion of this study is 1). The growth pattern of agronomic traits (plant height and canopy area) of cultivated Arabica coffee in coastal areas is normal, 2). The increase in traits the number of internodes, the area of a pair of leaves, and chlorophyll content shows that the Mandailing and Sigararutang genotype are the best, and 3). The genetic correlation of the increase in agronomic traits and physiological traits that are strong correlation are the variables of canopy area and leaf pair area.

Bio-fortified Compost as A Substitute for Chemical N Fertilizer for Growth, N Accumulation, and Yield of Sweet Corn Marwanto, Marwanto; Wati, Shinta Puspita; Romeida, Atra; Handajaningsih, Merakati; Adiprasetyo, Teguh; Hidayat, Hidayat; Purnomo, Bambang; Murcitro, Bambang Gonggo; Siswanto, Usman
Akta Agrosia Vol 22 No 2 (2019)
Publisher : Badan Penerbitan Fakultas Pertanian (BPFP), Fakultas Pertanian, Universitas Bengkkulu

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

ABSTRACTFinding the appropriate method of fertilizer application to simultaneously enhance farm productivity and ensure ecosystem sustainability has been receiving a lot of attention. A field experiment was carried in the Research Plot Agriculture Faculty Bengkulu University Campus Indonesia in 2017. The purpose of this study was (1) to assess the significant effects of inorganic N fertilizer (IF) substitution with bio-fortified compost (BC) under equal N conditions on growth, N accumulation, and yield of sweet corn, and (2) to determine the appropriate level to which inorganic N fertilizer could be reduced and equivalently replaced by bio-fortified compost to promote sweet corn growth and yield. The treatments consisted of six different proportions of inorganic N fertilizer (IF) substitution with bio-fortified compost (BC). Each treatment was designed on the basis of equal amount of total N input from a combination of both fertilizers (138 kg N ha-1). They were arranged in a randomized block design with 3 replications. They included (1) 100% IF plus 0% BC, (2) 75% IF plus 25% BC, (3) 50% IF plus 50% BC, (4) 25% IF plus 75%, (5) 0% IF plus 100% BC, and (6) no IF and no BC. The results showed that the increasing proportion of IF replaced by BC resulted in an increase for all variables (except for plant height) but they decreased when 100% IF substitution with 100% BC was applied. Among the partial substitution treatments, 50% IF plus 50% BC consistently produced the best growth, N accumulation, and yield increase. Treatments of 50% IF plus 50% BC and 25% IF plus 75% BC produced the highest green cob weight with husk per plot (10.74 – 10.84 kg plot-1), which was 16% to 19% higher than treatment of 100% IF plus % BC. The three partial substitution treatments produced crop yield components as good as treatment of 100% IF plus 0% BC. Treatment of 0% IF plus 100% BC reduced plant growth, N accumulation, and crop yield and its components. The appropriate level to which IF could be reduced and equivalently replaced by BC was at the range of 25% to 75%. Hence, a suitable replacement of inorganic N fertilizer with bio-fortified compost is considered a reasoned way to simultaneously increase crop yield and reduce environmental degradation.Keywords: organic fertilizer, chemical fertilizer, bio-fortification, chemical fertilizer substitution, bio-fortified compost

VEGETATIVE GROWTH OF CASSAVA (Manihot esculenta Crantz.) ON THE LIQUID ORGANIC FERTILIZER OF LEGUMINOSAE SPECIES AND CONCENTRATION Usman Siswanto; Yuliana Anggraeni; Wike Oktasari; Murti Astiningrum
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 25 No 2 (2023)
Publisher : BPFP Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.25.2.108-113

Cassava is one of the food crops with continous increasing demand. This study aimed to investigate the response of vegetative cassava growth to the application of different concentrations and types of liquid organic fertilizers (LOF) from Leguminosae plants. The research was conducted from February 27 to June 27, 2022, in Kembanglimus Village, Borobudur District, and arranged factorially (4x3) using a Randomized Completely Block (RCB). The first factor was the type of liquid organic fertilizer derived from Leucaena leucocephala, Mimosa pudica, and Arachis hypogaea. The second factor was the concentration of LOF, consisting of 0 mL/L, 15 mL/L, 30 mL/L, and 45 mL/L. Chlorophyll content was analyzed using spectrophotometer and protein contet of leaf and tuber were analyzed with Kjeldahl methods. The results demonstrated that type of LOI did not have a significant effect on all parameters. Liquid organic fertilizer from Leguminosae plants with 0 mL/L concentration resulted in the highest number of roots. Type of liquid organic fertilizer from Leucaena leaf with a concentration of 24.95 mL/L gave the highest number of roots, while type of LOF of Mimosa pudica with a concentration of 26.31 mL/L gave the highest number of branches. Type of liquid organic fertilizer of Arachis hypogaea with a concentration of 45 mL/L resulted in the highest total chlorophyll content, leaf protein content, and protein content in the tubers

Title

Found 12 Documents
Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title Search

Found 12 Documents Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title

Found 12 Documents
Search