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JURNAL GALUNG TROPIKA
Published by Universitas Muhammadiyah Parepare
ISSN : 23024178     EISSN : 24076279     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Jurnal Galung Tropika dengan nomor p-ISSN 2302-4178 (cetak) dan e-ISSN 2407-6279 (online) adalah jurnal ilmiah yang menerbitkan hasil penelitian di bidang Pertanian, Peternakan, Perikanan, dan Biologi Tanaman. Serta menyajikan informasi hasil penelitian dan artikel ilmiah untuk pembangunan pertanian berkelanjutan di Indonesia yang dipublikasikan secara elektronik dan cetak.
Arjuna Subject : -
Articles 30 Documents
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Search results for , issue "Vol 10 No 3 (2021)" : 30 Documents clear
Informasi Genetik Bitti (Vitex cofassus) di Areal Sumber Daya Genetik (ASDG) BPTH Wilayah II Sulawesi Siti Halimah Larekeng; Zulfadilah Syam; M Musriati; Rathna Paelongan; Astuti Arif; Muhammad Restu; I Iswanto
JURNAL GALUNG TROPIKA Vol 10 No 3 (2021)
Publisher : Fapetrik-UMPAR

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31850/jgt.v10i3.801

Abstract

Bitti (Vitex cofassus) is one of the most important tree species in Sulawesi, which is used as material for phinisi boats. The aim study was to study the genetic diversity of Bitti in the genetic resources area in Bone Regency. This study used provenance Bulukumba, Muna, Kolaka, and North Luwu proof which was analyzed based on microsatellite markers. The resulting study showed evidence that provenance Muna has a Ho value 0f 0,65 or a relatively high genetic diversity value in comparison to provenance Bulukumba, Kolaka, and North Luwu.
Pertumbuhan dan Hasil Tiga Varietas Kacang Tanah pada Jarak Tanam dan Macam Pengendalian Gulma Kharis Triyono; P Priyono; Wahyu Agustina
JURNAL GALUNG TROPIKA Vol 10 No 3 (2021)
Publisher : Fapetrik-UMPAR

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31850/jgt.v10i3.794

Abstract

This study aimed was to find an integrated technology to obtain optimum spacing and effective weed control on various varieties based on the peanut yield approach. The design used was a Completely Randomized Block Design arranged in a factorial manner, consisting of 3 factors: Factor 1, plant spacing of 30 x 10 cm, and 40 x 10 cm. The second factor was the type of weed control, which was weeded twice at 21 and 42 days after planting, and the use of the herbicide glyphosate 1.44 kg b.a per hectare. The third factor is the variety of peanuts, namely the Jepara, Kelinci, and Panter varieties. All treatments were repeated 3 times. The data obtained were analyzed by analysis of variance and continued with Duncan's Multiple Distance Test with a significant level of 5%. The results showed that the independent spacing treatment significantly affected all observed parameters. The weed control significantly affected all parameters except seed weight per plot, and varieties treatment significantly affected all parameters except the dry weight of the stover. Interaction between planting distance and weeding type had a significant effect on all observation parameters except the dry weight of the stover.
Kualitas Air dan Cemaran Logam Berat Merkuri (Hg) dan Timbal (Pb) pada Ikan Nila (Oreochromis niloticus) Hasil Tangkapan dari Waduk Tunggu Pampang Kota Makassar Andi Santi; Muh. Ali Arsyad
JURNAL GALUNG TROPIKA Vol 10 No 3 (2021)
Publisher : Fapetrik-UMPAR

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31850/jgt.v10i3.799

Abstract

The level of heavy metal contamination of mercury (Hg) and lead (Pb) in the aquatic ecosystem of the Waiting Pampang Reservoir, Makassar City, is known by determining the concentration of these heavy metals in water and biota (tilapia). Tilapia is a catch that is relatively abundant in the Waiting Pampang Reservoir. This study aimed to determine water quality and levels of Hg and Pb contamination in water and tilapia caught from the Waiting Pampang Reservoir. Water quality is determined by measuring 1) the degree of acidity (pH), 2) Dissolved oxygen (DO), 3) Biological oxygen demand (BOD), and 4) Chemical oxygen demand (COD). The results showed that the BOD and COD values had passed the threshold so that the waters of the Waiting Pampang Reservoir were contaminated with organic matter. However, it has not been contaminated with Hg and Pb (<0.001 mg/kg) heavy metals. Tilapia caught from the Waiting Pampang Reservoir contained heavy metal Pb, but the concentration was far below the permissible value. However, the consumption of tilapia from the Waiting Pampang Reservoir must still be watched out for because heavy metals are accumulative.
Tekstur Tanah dan Respons Tanaman Tanaman Tomat pada Lahan Masam Diaplikasi Asam Humat dari Sari Kulit Buah Kakao Iradhatullah Rahim; M Maharani; H Harsani; S Suherman
JURNAL GALUNG TROPIKA Vol 10 No 3 (2021)
Publisher : Fapetrik-UMPAR

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31850/jgt.v10i3.871

Abstract

Acidic land is underutilized as agricultural land because of its lack of nutrients and minimal water content. At the same time, acid land is widespread in Indonesia. This study aimed to determine the soil texture and response of tomato plants after applying manure and humic acid from cocoa pod extract. Humic acid was extracted from cocoa pod skin compost using the Tan method, while soil texture was measured using the pipette method. The experimental design used was a randomized block design with 3 treatments of giving organic matter to acid soil, including untreated acid soil, acid soil + manure, and acid soil + manure + humic acid. The results showed that acid soil + manure treatment could reduce the sand fraction up to 53%. In addition, there was an increase in values for all growth and production parameters of tomato plants, including plant height, number of leaves, and tomato fruit weight in acid soil. The addition of manure + humic acid to acid soil can also increase tomato plants' wet weight, dry weight, and root volume.
Perubahan Konduktivitas Hidraulik dan Daya Hantar Listrik Tanah Akibat Pemberian Urea dan Bahan Organik pada Tanah Ultisol Ida Suryani
JURNAL GALUNG TROPIKA Vol 10 No 3 (2021)
Publisher : Fapetrik-UMPAR

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31850/jgt.v10i3.805

Abstract

This study aimed to determine the effect of urea added with organic matter in a high C/N (50-70) or low C/N (10-20) ratio on the hydraulic conductivity and electrical conductivity of Ultisol soil. The research was arranged in a Split Plot Design. The main plot is organic matter, ie, without organic matter, calopogonium leaves, and rice straw 1,275 x 10-8 kg/ha, equivalent to 15.3 g/pipe. Sub-plots were urea doses consisting of 0, 100, and 300 kg/ha, equivalent to 0 g/pipe, 0.0425 g/pipe, and 0.0825 g/pipe, respectively, applied to Ultisol soil. Sample of Ultisol soil was taken at a depth of 0 -120 m which were air-dried, then sifted, mixed with TSP, organic matter, and urea according to treatment. The sample was put in a PVC tube (pipe) with the bottom covered with fine gauze to hold the soil but still allow percolation. . Incubation was carried out for two weeks. Observations were made after the incubation period, including hydraulic conductivity and electrical conductivity. The application of organic matter and urea at a dose of 300 kg/ha can increase the electrical conductivity of the soil. Adding the main organic matter with a high C/N ratio (rice straw) increases the hydraulic conductivity. Electrical conductivity (EC) is a good indicator in explaining the dispersive effect of urea and the effect of flocculation of organic matter. High electrical conductivity always results in high hydraulic conductivity in Ultisol soils.
Insiden Serangan Ulat Grayak Spodoptera frugiperda (Lepidoptera: Noctuidae) pada Tanaman Jagung di Kalimantan Timur Bayu Widhayasa; Ertha Dwi Prasetyani; Heru Gendroyono
JURNAL GALUNG TROPIKA Vol 10 No 3 (2021)
Publisher : Fapetrik-UMPAR

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31850/jgt.v10i3.810

Abstract

The armyworm Spodoptera frugiperda is a new pest found on maize in Indonesia. Previous research reported that S. frugiperda attacks had occurred in West Sumatra, South Sumatra, Lampung, Banten, West Java, and East Nusa Tenggara. This study aims to determine the presence and determine the attack of S. frugiperda on maize in East Kalimantan. Observations were made from January to December 2020 in the Regencies of Berau, West Kutai, Kutai Kartanegara, North Penajam Paser and Paser. Based on the morphological characteristics, it was confirmed the presence of S. frugiperda larvae with inverted Y-shaped markings on the front of the head, and the presence of black spots forming a square and trapezoidal pattern on the abdomen. Berau Regency experienced the highest S. frugiperda attack in East Kalimantan with an attacking intensity reaching 13.33%. The results of the determination of the attack category showed that 93.31% of S. frugiperda attacks on maize in East Kalimantan were still in the mild category, the rest were in the moderate and severe categories, and there was no dried up incidence.
KEANEKARAGAMAN JENIS-JENIS ANGGREK DI CAGAR ALAM KOFIAU KABUPATEN RAJA AMPAT P Ponisri; Lona H. Nanlohy
JURNAL GALUNG TROPIKA Vol 10 No 3 (2021)
Publisher : Fapetrik-UMPAR

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31850/jgt.v10i3.851

Abstract

This study aims to determine the abundance of orchid species, diversity, evenness and dominance of orchid species in the Kofiau Nature Reserve, Raja Ampat Regency. This forest area is a habitat for various endemic flora and fauna, including orchids. Orchid is one of the seed plants of the Orchidaceae family which is in great demand because of its attractive flower shape and color so that it can be used as raw material for the cut flower industry, potted plants or garden decorations. The procedure used in this study was field observation/exploration technique, the determination of the observation sample was carried out by considering the area objectively overgrown with orchids. charts, graphs and photos). Based on the results of exploration and identification of orchid species in the Kofiau Nature Reserve, there are 3 types of epiphytic orchids and 1 type of terrestrial/soil orchid, so the total number is 4 types of orchids, consisting of 1 genus of soil orchid (Spathoglotis) and 3 genera of epiphytic orchids, namely Dendrobium. 2 species and Grammathophyllum 1 species. With the highest number of individuals, Grammatophylum scriptum 128 (50.00%), then Spathoglotis plicata with the highest number of individuals, 107 (41.797%), this is the highest number of orchids found in mangrove forests, then Dendrobium allofolium with 15 individuals. (5.859%), and D. crumenatum with 6 individuals (2.344%) with a total of 256 orchid individuals found in mangrove forests. The orchid species diversity index value is 0.3771 and the dominance index is 0.4287 and the evenness index value is 0.0943. Where the index value of diversity and species dominance on orchids in the Nature Reserve forest is in the low category while the evenness index value is in the medium category.
Performa Benih Udang Windu yang Diberi Artemia Diperkaya Taurin R Ridwan; Moh. Adnan Baiduri
JURNAL GALUNG TROPIKA Vol 10 No 3 (2021)
Publisher : Fapetrik-UMPAR

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31850/jgt.v10i3.803

Abstract

Efektivitas Pemanfaatan Lahan Pekarangan dalam Mendukung Ketersediaan Pangan pada Era Pandemi Covid-19 di Pedesaan Reza Asra; Trisnawaty AR
JURNAL GALUNG TROPIKA Vol 10 No 3 (2021)
Publisher : Fapetrik-UMPAR

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31850/jgt.v10i3.856

Abstract

National food security is a problem that must be tackled together, especially in the new normal era caused by the covid 19 pandemic. The yard of the house to produce food is one of the concepts of using yard land both in rural and urban areas to support national food security by empowering potential local food. The yard is not only to create beauty and coolness, but also to improve the economy of each family. The purpose of this study was to determine the characteristics of the community in the use of yard land during the Covid-19 pandemic, to determine the pattern of yard use, and to determine the effectiveness of using yard land in rural areas, especially residents of Carawali Village, Sidrap Regency, in supporting food availability. The data analysis used in this study was an experiment with a one group pre-test post-test design model. In this design, an initial measurement (pre-test) was carried out, after which certain treatment was given, then a re-measurement was carried out (post-test). Sampling in this study using snowball sampling. The results showed that the use of yard land in supporting the food availability of residents in Carawali Village, Watang Pulu District showed that the percentage of the answer scores for the program effectiveness variable described from several questionnaire questions to respondents was in the range of values of 50 - 100%, which means that it is included in the effective criteria.
Aplikasi Kompos Jerami dan Pupuk Kotoran Walet Terhadap Pertumbuhan dan Produksi Kedelai (Glycine max L. Merill) Fardyansyah Hasan; Muh Jabal Nur
JURNAL GALUNG TROPIKA Vol 10 No 3 (2021)
Publisher : Fapetrik-UMPAR

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31850/jgt.v10i3.843

Abstract

This study aims to determine the effect of applying straw compost and swallow manure and their interaction on the growth and production of soybean plants. The study was conducted in the garden of Tinelo Village, Tilango District, Gorontalo Regency, from February to July 2021. The study was arranged using a randomized block design with two factors and three replications. The first factor is the dose of straw compost, consisting of three levels, namely without the application of straw compost, 10 tons ha-1 , and 15 tons ha-1. The second factor was the dose of wallet manure, consisting of three levels, namely without fertilizer application, swallow manure 5 tons.ha-1 and 10 tons.ha-1. The results showed that the application of swallow manure fertilizer at a dose of 10 tons ha-1 was the best treatment by producing the highest number of pods and 100 seeds and increasing soybean seed weight up to 13.56 %.

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