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International Journal of Agriculture System

ijas
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Published by Universitas Hasanuddin

ISSN : 23379782 EISSN : 25806815 DOI : http://dx.doi.org/10.20956/ijas.v5i2.1236

Core Subject : Agriculture,

Agriculture, Biological Sciences & Forestry

International Journal of Agriculture System (Int. J. Agr. Syst.- IJAS) is published by Hasanuddin University (UNHAS) twice a year in June and December. This journal is an academic, citation indexed, and blind peer-reviewed journal. It covers original research articles, short notes and communications, reviews (including book), concepts, commentaries, and letters on a diverse topic related to agricultural systems including forestry, fishery/marine, and animal sciences. The aims of this journal are to provide a venue for academicians, researchers, and practitioners to share/discuss theories, views, research results, on issues related to the science, engineering and technology, and humanities in agriculture development, management, and issues in agricultural systems, particularly in the tropics. However, any other articles related to non-tropical agricultural systems are also welcome.

Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)

Articles 140 Documents

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Volume and Surface Area Shrinkages of Some Hybrid Corn Varieties Junaedi Muhidong; Akbal Akbal
International Journal of Agriculture System VOLUME 4 ISSUE 1, JUNE 2016
Publisher : Hasanuddin University

Hybrid corn has been popular to Indonesian corn farmers in recent years. Nonetheless, physical properties of hybrid corn kernels, including their shrinkage behavior, are rarely investigated to support a more efficient post harvest handling. This research was designed to explore the shrinkage behavior of the kernels of five hybrid corn varieties (NK77, DK77, Pioneer, Makmur, and Bisi-2). The study was conducted in the Processing Laboratory of Agricultural Engineering Department, Hasanuddin University, Indonesia, in 2011. Five relatively homogenous kernels from each variety were selected and dried under a temperature of about 47oC with drying air velocity of 1.0 m/s, using a tray dryer, Model EHTD- 300 Eunha Fluid Science. A caliper with an accuracy of 0.05 mm was used to measure the orthogonal dimensions of the kernels. Such dimensions were transformed into volume and surface area ratios. The behaviours of these ratios as a function of moisture contents, called shrinkage behaviors, were fitted to Rahman, Bala and Wood, Corrêa et al. and polynomial quadratic models. The results strongly suggested that there was no single model which was consistently more superior in estimating the shrinkage behaviors of both volume and surface area of the hybrid corn varieties of NK22, DK77, Pioneer, Makmur, and Bisi-2 than the other models. However, compared with the other two models, the Bala and Wood and the polynomial quadratic models consistently provided high R2 values.

Sociotechnical Change and Institutional Adjustment in Paddy Rice Farming During Post Green Revolution in Indonesia Awaluddin Yunus; Darmawan Salman; Eymal B. Demmallino; Ni Made Viantika
International Journal of Agriculture System VOLUME 4 ISSUE 2, DECEMBER 2016
Publisher : Hasanuddin University

The development of rice field agriculture in Indonesia has entered the post green revolution phase. The sociotechnical changes occurred during the green revolution, the economic gap among farmers also ensued amid the increase in production while the social sustainability was maintained. The research purpose is to analyze the institutional adjustment conducted by the farmer society in facing the problems caused by green revolution in order to maintain the social sustainability. For the purpose mentioned above, the case study was carried out in a village in a center of green revolution. The result of the research shows that: (1) The sociotechnical changes had been taking place during the pre-green revolution era, green revolution, and post-green revolution in the form of land management, seeds procurement, planting and managing the crops, and harvest and post-harvest. The sociotechnical changes encouraged the increase in agricultural production in which created the gap between the affluent and the underprivileged in a village and had the potential to disturb the social sustainability of rice field agribusiness. (2) The institutional adjustment occurred in the sociotechnical changes in the forms of land ownership dynamics, employment dynamic and village’s new occupation dynamic. This institutional adjustment has the function to dampen the tension on the marginalized individual actor caused by the post green revolution new social structure. (3) The social sustainability in the rice field agriculture could be maintained because the social tension caused by the post green revolution social technical changes could be dampened by the institutional adjustment. The institutional adjustment by the village community contributed into the social sustainability of the rice field agribusiness.

Vegetative Propagation of Punica granatum by Stem Cuttings Using Non-Mist Propagator Md. Alamgir Kabir; Mahamud Hasan Prince; Rezaul Karim; Saifur Rahman; K.M. Masum Billah; G.N. Tanjina Hasnat
International Journal of Agriculture System VOLUME 5 ISSUE 2, DECEMBER 2017
Publisher : Hasanuddin University

The present study was carried out to explore rooting performance of Punica granatum (Dalim) in Bangladesh through clonal propagation by stem cutting under 3 different doses of rooting hormone IBA (Indole Buetairic Acid) and planted in the perforated plastic tray filled with coarse sand and gravel placed in the non-mist propagator. The experiment was laid out following a Randomized Complete Block Design (RCBD) with 4 treatments and 4 replications (blocks). The treatments were T0= control, T1 = 0.2% IBA, T2 = 0.4% IBA, T3 = 0.8% IBA. The rooting ability of cuttings was significantly influenced by the application of IBA. The results showed that the highest rooting percentage (70%) and longest root length (11.75 cm) of P. granatum stem cuttings were obtained from the cuttings treated with 0.2% IBA followed by 0.4% IBA (47.5% and 7.95 cm respectively) whereas the highest root number (32) and maximum root diameter (2.7 mm) were recorded with 0.4% IBA followed by 0.8% IBA (28 and 2.47 mm respectively). Survival percentage of the cutlings (the rooted cuttings) after 3 months of transferring them into poly bags was also significantly enhanced by exogenous rooting hormone (IBA) application. The highest survival percentage (73.5%) was observed with 0.4% IBA treatment followed by 0.8% IBA (68.5%). Findings of the present study reveal that P. granatum is highly amenable for clonal propagation by stem cuttings using low-cost non-mist propagator and 0.4% IBA treatment may be recommended for mass production of quality planting stocks for the cultivation of the species in homestead agroforestry or in fruit orchards. These outcomes can assist to provide edible fruit to poor rural people of natural disaster vulnerable Bangladesh.

Root Morphological Characters at Several Distances from Irrigated Trench in Rice Varieties Grown under Rain-fed Conditioned Plots Asia Arifin; Rinaldi Sjahril; Muhammad Riadi; Naoya Arita; Akira Miyazaki
International Journal of Agriculture System VOLUME 6 ISSUE 1, JUNE 2018
Publisher : Hasanuddin University

In rain-fed area, water deficit or drought stress is a serious limiting factor to rice production and yield stability, and root system with deep roots is one of the most important characters. This study aimed to identify which root morphological characters induce the advantage of the deep rooting between varieties. Six varieties consisting of two groups of ecosystems, upland: NERICA1, NERICA4, NERICA7, Yumenohatamochi, and lowland: Hinohikari and Koshihikari were grown under the rain- fed condition in the field of Kochi University. The results suggested the adaptability of NERICA varieties to the upland rainfed conditions, due to the development of roots into the deep soil layer. NERICA7 had lowest soil moisture content and had a higher root weight, root surface area, root length and the number of root branching in the deep soil layer at heading stage. NERICA7 also had higher value on dry weight, surface area and thickness in total amount of root morphological characters. Varietal difference of root surface area in the deep soil layer was related to both root length and thickness, and root length was involved with root branches. On the other hand, the varietal difference of total amount of root surface area was related not to the root length, but to the root thickness. This result suggested that the emergence of the thick roots (probably primary crown roots) allowed the roots to penetrate into the deep soil layer. Therefore, it is considered that the emergence of thick roots is an important trait for the deep rooting character.

Farmer Technical Knowledge of Reproductive Technology and Training Interventions Tanri Giling Rasyid; Muhammad Darwis; Andi Suarda
International Journal of Agriculture System VOLUME 7 ISSUE 1, JUNE 2019
Publisher : Hasanuddin University

This study contributes to the improvement of knowledge of farmers based on reproductive technology training interventions in terms of knowing that signs of lust, how to administer hormones to cause uniformity of lust or estrus or prostaglandin, and to know the exterior shape of productive female beef cattle. This study uses a pre-test and post-test model approach through training interventions. Also using mixed method research is a methodology that combines qualitative and quantitative methods. This method allows researchers to present qualitative studies through descriptive explanations and also quantitatively through numbers, tables, graphs, charts and statistical data. For the measurement scale to quantify qualitative data, the measurement scale is Likert 3 levels. The results show that training interventions can improve the knowledge or skills and expertise of beef cattle farmers in terms of reproductive technology and minimize the dependence of farmers on extension workers.

The Biology and Pathology of Pseudocaligus uniartus Ho, 2004 (Copepoda: Siphonostomatoida: Caligidae) Infecting Siganids (Siganus sp) in Indonesia Hilal Anshary; Sriwulan Sriwulan; Ahmad Muyassar
International Journal of Agriculture System VOLUME 1 ISSUE 1, JUNE 2013
Publisher : Hasanuddin University

Siganids are marine fish which are potentially cultured in ponds or floating net cages. In attempt to produce spawners from wild fish stock, the Caligid Pseudocaligus uniartus appeared in culture facilities causing mild to heavily damage on infected fish. The purposes of this research were to study the mode of infection, biology and pathology of P. uniartus. Egg strings were collected from ovigerous females infecting Siganus guttatus. The parasite posses two nauplius stages, one copepodid, four chalimus stages and young adult. Hatching rates reached 96% at 20 ppt, and 94% and 90% at 25 and 30 ppt, respectively. The eggs started to hatch theree hours after incubation and most eggs had hatched within seven hours. Nauplius stages were estimated for about three hours. Copepodid remained alive after two days without host and started to die within three days and all died within six days. Newly attached copepodid as well as chalimus was mainly found on posterior part of dorsal and anal fins and pectoral fin. Young adult and/or adult parasite were found on the surface of the body, caudal and pectoral fins of host. The estimated time needed from copepodid to adult was seven days. All larvae have become adults on day 10. The complete life cycle was estimated within 7.6 - 10.6 days. Heavily infected fish showed lesion on skin and eroded fins. Large number of inflammatory cells was infiltrated on the infected areas.

Study on the Effect of Fertilizers and Hydrogen Peroxide on Soil Property, Growth, Yield and Nutrient Content of Abelmoschus Esculentus (L.) Moench Selvaananthi A; Beulah Jerlin
International Journal of Agriculture System VOLUME 8 ISSUE 2, DECEMBER 2020
Publisher : Hasanuddin University

Effect of the application of individual and combination of vermicompost, NPK along with H2O2 was studied on 10, 20, 30, and 40 days old seedlings of Abelmoschus esculentus. The physio chemical characters of soil with vermicompost showed better result and it has all kinds of nutrient needed for the better growth of the crop. It increases soil fertility, crop production and nutrient content of the plants. Integrated fertilizer application will boost the crop and this is the best way to obtain better results and it will decrease the pollution load on our environment. Application of H2O2 also influences the germination, early plant growth and nutrient content. It act as a growth promoter, but the continuous application and accumulation leads to damages, and the disease resistance against pathogens was decreased during the reproductive stages.

A Path Analysis of Sustaining Small Scale Fishing Industry in Indonesia Dedy Putra Wahyudi; Eko Sri Wiyono; Budy Wiryawan; Iin Solihin
International Journal of Agriculture System VOLUME 2 ISSUE 1, JUNE 2014
Publisher : Hasanuddin University

The over exploitation of the international fishing activities does affect the sustainability of the local small-scale fishing industry. The small scale fishing industry sectors especially economic, social, ecological, and governance in Indonesia has not been well managed. The objective of this paper is therefore to analyze the causal relationships between the four variables using a path analysis technique. The results of this analysis showed that the economic factor has the largest effect on the small-scale fisheries system. Future studies should emphasized more on the economic variable to sustain the local fishing industry in Indonesia.

Mapping of Agricultural Land Use Change and Effect on Land Capability as a Basis for Land Use Direction in Nguntoronadi-Indonesia Mujiyo Mujiyo; Suntoro Suntoro; Rifa Rizhandion Akbar; Rahayu Rahayu
International Journal of Agriculture System VOLUME 10 ISSUE 1, JUNE 2022
Publisher : Hasanuddin University

The occurrence of conversion of agricultural land can cause erosion proneness, low fertility soils, and decreased land productivity. Land conversion requires an evaluation of land capability, as a basis for direction to maintain land productivity. This study aims to determine the rate of conversion of agricultural land, land capability class, the determinants of land capability, and direction of land management on initial land and converted land in agricultural land, Nguntoronadi District, Karanganyar Regency. The method used is a survey, with the research area divided into 6 LMU (Land Map Units) represented by 6 sample points in each LMU including 3 points on fixed land and 3 points on converted land, resulting in 36 samples determined by purposive sampling. The research stages include; 1) Pre survey, 2) Survey, 3) Post survey. The results of the study show that the land-use change from 2011 to 2020 covers an area of 258.56 ha and a rate of 28.73 ha per year. The land capability of the research area on fixed land and converted land is classified into land capability III and class IV. Factors that determine land capability include soil erodibility and drainage. The recommended direction for land use and management for Nguntoronadi District is the provision of green manure, making terracing, and making drainage irrigation

An Early Detection of Latent Infection of Ralstonia solanacearum on Potato Tubers Baharuddin Baharuddin; Tutik Kuswinanti; Ach Syaifuddin
International Journal of Agriculture System VOLUME 2 ISSUE 2, DECEMBER 2014
Publisher : Hasanuddin University

Ralstonia solanacearum is not only a soil-borne pathogen but also a seedborne bacterial pathogen. National Seed Agency require that seed-source (G0) must free from bacterial wilt infection (0%) in potato seed certification process. This study aimed to determine an early and accurately detection of Ralstonia solanacearum in potato seedsource production (G0) on aeroponics cultivation system, which previously treated with microbial antagonists and artificialy infected with Ralstonia solanacearum. Seed potatoes were obtained from the previous study. Antagonist isolates NS01, S04, G06, and NG02 were applied separately in aeroponic system in nutrient solution, then artificially infected with R. solanacearum. These four isolates is quite effective inhibite R. solanacearum infection in potato aeroponic system with the intensity attach of 5, 7, 9 and 21% respectively, compared to 100% in control. Although the symptoms of wilt disease were appeared in plants, but the seeds did not show typical symptoms. In the positive control that inoculated with R. solanacearum without antagonists, revealing immediately wilt and death of plants, 14 days after inoculation. The result of polymerace chain reaction (PCR) using OLI1 and Y2 primers on tubers without antagonist with 100% disease incidence showed, that all of the tuber have positive results indicated by the appearance of DNA bands in the size of 287 bp. From visually healthy seeds sample resulted from antagonist treatment, only few of them have positive result and mostly other tubers showed negative result. This means that the role of antagonists on suppression of wilt disease, cannot totally guarantee the tubers free from latent infection of R. solanacearum.

Page 10 of 14 | Total Record : 140

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Graduate School 2nd Floor, Room 202, Hasanuddin University, Jalan Perintis Kemerdekaan KM. 10, Tamalanrea, Makassar, 90245, South Sulawesi, Indonesia.

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Sulawesi selatan

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Home Page

OAI Link

Editorial Team

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Reviewer

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Contact Name Ahsan Yunus

Contact Email ahsanyunus@unhas.ac.id

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Journal Mail Official ijas@unhas.ac.id

Editorial Address Graduate School 2nd Floor, Room 202, Hasanuddin University, Jalan Perintis Kemerdekaan KM. 10, Tamalanrea, Makassar, 90245, South Sulawesi, Indonesia.

Location Kota makassar, Sulawesi selatan INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
Ahsan Yunus

Contact Email
ahsanyunus@unhas.ac.id

Phone
-

Journal Mail Official
ijas@unhas.ac.id

Editorial Address
Graduate School 2nd Floor, Room 202, Hasanuddin University, Jalan Perintis Kemerdekaan KM. 10, Tamalanrea, Makassar, 90245, South Sulawesi, Indonesia.

Location
Kota makassar,

Sulawesi selatan

INDONESIA