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Sumatera utara
INDONESIA
Indonesian Journal of Agricultural Research
Published by Universitas Sumatera Utara
ISSN : 26155842     EISSN : 26155842     DOI : -
Core Subject : Economy, Health, Agriculture, Social,
Agriculture, Biological Sciences & Forestry Economics, Econometrics & Finance Environmental Science Social Sciences Veterinary
Indonesian Journal of Agricultural Research (InJAR) is a peer-reviewed quarterly journal published by TALENTA (Universitas Sumatera Utara's Journals Publisher) and managed by Faculty of Agriculture, Universitas Sumatera Utara. It is based on DIKTI accreditation standard and covers all aspects of agricultural researches including Animal Science and Fisheries, Agribusiness, Agrotechnology and Agricultural Technology. All manuscripts are double-blind refereed before acceptance. InJAR is published in March, July, and November.
Arjuna Subject : -
Articles 179 Documents
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Enhancing Small and Medium Scale Enterprises Sustainability: Factors Influencing the Pottery Industry in Sri Lanka Siriwardena, Buddhika Purnaka; Jathunarachchi, Sampath Sanjeewa; Vidanapathirana, Nisansala Priyadarshani
Indonesian Journal of Agricultural Research Vol. 6 No. 3 (2023): InJAR, Vol. 6, No. 3, November 2023
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/injar.v6i3.13473

Abstract

The pottery industry stands as a revered traditional handicraft, bearing both social and economic significance as a sustainable source of revenue within Sri Lanka. This study aims to unravel the elaborate factors that influence small and medium-scale enterprises (SMEs) within this industry. The study targeted small and medium-scale pottery producers in Udukiriwala, Hambantota District of Sri Lanka, with a sample size of 75 participants. The sampling technique employed was a simple random selection method. Data accumulation was coordinated via a precise pre-tested questionnaire, designed to encapsulate demographic particulars and inquiries connect to various constructs using a five-point Likert scale. Comprehensive statistical analysis ensued, encompassing mean calculations, standard deviations, correlation assessments, and regression analyses. Environmental factors exhibit a significant positive correlation, underlining their intense influence on the pottery industry's development. In absolute contrast, economic factors showcase a notable negative correlation. Meanwhile, sociological factors and government influence factors exhibit no statistically significant correlations with the pottery industry's evolution. The recognition of pivotal factors shaping the pottery industry sets the stage for well-informed actions, providing a solid basis for fostering its sustained expansion and advancement within the Sri Lankan context.
Local Narratives on the Adoption of Mango Integrated Crop Management Technologies in Samal Island, Philippines Anastacio, Nico Jayson; Camacho, Jr., Jose V.; Lapitan, Aileen V.; Maquito, Ferdinand C.; Datoon, Rodmyr F.; Tanzo, Irene R.; Gapas, Jeanarah M.
Indonesian Journal of Agricultural Research Vol. 6 No. 3 (2023): InJAR, Vol. 6, No. 3, November 2023
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/injar.v6i3.13622

Abstract

The adoption of agricultural technologies is imperative in improving the performance of the local agriculture sector in the Philippines. Numerous technology-based development projects have been implemented across the country. The Mango ICM project was one of these interventions. It was carried out in the Island Garden of Samal, Davao del Norte (IGaCoS) with the objective of supporting the local mango industry through the promotion of environmentally sustainable technologies. Years since project completion, challenges have been raised in relation to technology adoption. To understand the adoption dynamics in IGaCoS, this study dissects the complex nature of the Mango ICM technologies and the perception and reception of the local producers towards them. This study is grounded on the narratives gathered through a series of in-depth interviews with key informants and local mango producers. Results show that although the potential benefits of the extended technologies were recognized, the existing local labor and market arrangements created barriers to technology adoption. The nature of technology, market arrangement, and financial constraints were the identified reasons for the non-adoption of the local mango producers
Enhancement of Okra (Abelmoschus esculentus L.) Germination through Seed Priming Techniques Balchhaudi, Anil
Indonesian Journal of Agricultural Research Vol. 6 No. 2 (2023): InJAR, Vol. 6, No. 2, July 2023
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/injar.v6i2.13660

Abstract

The presence of a hard seed coat, coupled with various abiotic stresses during germination, can result in delayed and erratic crop establishment of okra (Abelmoschus esculentus L.). Seed priming offers an efficient and cost-effective method to improve the emergence of okra seeds. A laboratory experiment was conducted to assess the effect of various priming methods on germination parameters. The investigation was laid out in a Complete Randomized Design (CRD) with six levels of seed priming methods viz. priming with 200 ppm GA3 solution, priming with 80% H2SO4 solution, priming with 0.3% KNO3 solution, priming with 5% PEG-6000 solution, priming with tap water, and control (without priming). The experiment was replicated four times. The effect of various priming methods on physiological and biometric parameters, i.e., germination percentage, mean days to germination, seed vigor index, root length, and shoot length, was investigated. The research results revealed that seed priming methods significantly influenced all the recorded parameters. Priming with GA3 recorded a significantly higher germination percentage (73.75%), root length (114.5 mm), shoot length (85 mm), and seed vigor index (14719 mm). Furthermore, priming with GA3 took significantly fewer mean days to germinate, requiring a mere 5.42 days. Priming with H2SO4 was as effective as priming with GA3 in terms of germination percentage, mean days to germination, seed vigor index, root length, and shoot length. The study concluded that priming with GA3 and priming with H2SO4 can be an effective method to expedite seed germination, enhance germination percentage, and increase the seed vigour of okra. In the absence of GA3 and H2SO4, hydropriming can be a felicitous alternative to combat poor crop emergence in an eco-friendly and cost-effective manner.
Efficiency of Fertilizing Maize Plants Through the Application of Slow Release NPK Tablet Fertilizer with Biofertilizer Novianti, F.; Syaiful, S. A.; Dachlan, A.; Fadhli, N.
Indonesian Journal of Agricultural Research Vol. 6 No. 3 (2023): InJAR, Vol. 6, No. 3, November 2023
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/injar.v6i3.13904

Abstract

Inefficiencies in fertilization practices have become a substantial issue within current agricultural techniques. The inappropriate use of fertilizers can negatively impact both crop productivity and soil fertility. The aim of this research is to identify the efficiency of utilizing slow-release NPK tablet fertilizers supplemented with biofertilizers in maize crops. The experimental design incorporated a randomized complete block design (RCBD) consisting of nine combinations of fertilizer dosages between NPK tablet fertilizers and biofertilizers. The efficiency of fertilizer use can be seen from the RAE value of more than 100% shown by the NPK Tablet treatment which requires only one application compared to the recommended fertilizer, urea, and NPK Phonska which requires twice applications. Furthermore, optimization of the application of biofertilizer can be seen in the RSE value of more than 100% shown in the application of LBA biofertilizer together with NPK Tablets so that the application of biofertilizer is considered capable of increasing the efficiency of using inorganic fertilizers such as NPK Tablets.
In Vitro Assay of Lytic Bacteriophage to Suppress the Growth of Ralstonia syzygii subsp. indonesiensis, the Causal Pathogen of Potato Wilt Disease Azizah, Nur; Irda Safni
Indonesian Journal of Agricultural Research Vol. 7 No. 2 (2024): InJAR, Vol. 7, No. 2, July 2024
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/injar.v7i2.14192

Abstract

Bacterial wilt disease, the one of the major diseases of potatoes, caused by Ralstonia syzygii subsp. indonesiensis (Rsi). Many efforts have been made to control bacterial wilt disease, including physical control, chemicals, and the use of bacteriophages. Previous studies have shown that bacteriophage application in controlling plant diseases is a fast-expanding area and has great potential to replace chemical methods. This study aims to determine the potential of lytic bacteriophage in suppressing the growth of Rsi in vitro. This study used a Non-Factorial, Completely Randomized Design with 3 replications and 6 treatment levels: R1 (Rsi isolate 1 without bacteriophage), R2 (Rsi isolate 1 with bacteriophage), R3 (Rsi isolate 2 without bacteriophage), R4 (Rsi isolate 2 with bacteriophage), R5 (Rsi isolate 3 without bacteriophage), and R6 (Rsi isolate 3 with bacteriophage). The results showed that bacteriophage could reduce the Rsi population at 24 hours by looking at the optical density (OD) value of 600 nm wavelength and growing on NA medium using the spread-plate method. The best treatment was at R6 with a population of 1 x 108cfu/ml Rsi. This research suggests that bacteriophage has the potential to suppress the growth of Rsi, which causes potato bacterial wilt disease, in vitro.
The Role of Motivation and Work Environment to Promote Productivity of Chili Farmers in Magelang Irhamni, Muhammad Ricza; Muna, Khoirul; Falah, Wildan Yusrul
Indonesian Journal of Agricultural Research Vol. 7 No. 2 (2024): InJAR, Vol. 7, No. 2, July 2024
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/injar.v7i2.14526

Abstract

This paper examines the impact of motivation and the work environment in supporting the productivity of chili farmers in Magelang. We use managerial work motivation theory to identify farmer motivation and use the work environment as a measuring tool to determine the environmental conditions around agricultural land. The quantitative model is estimated to show that motivation and work environment can significantly boost farmer productivity. The sample in this study was 64 respondents, regression analysis was used in this study using SPSS 22. Farmers with high motivation will increase the productivity of their crops, although this is not significant. Finally, farmers with a good working environment will increase farmer productivity significantly.
Nitrogen-Fixing Purple Nonsulfur Bacteria Originating from Acid Saline Soils of a Rice-Shrimp Farm Anh, Nguyen Hoang; Xuan, Ly Ngoc Thanh; Xuan, Do Thi; Quang, Le Thanh; Khuong, Nguyen Quoc
Indonesian Journal of Agricultural Research Vol. 7 No. 1 (2024): InJAR, Vol. 7, No. 1, March 2024
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/injar.v7i1.14726

Abstract

The study was conducted to (i) isolate, select, and identify strains of purple nonsulfur bacteria (PNSB), which can fix nitrogen (N), from soil and water in a rice-shrimp integrated system, (ii) to determine the capacity of the selected potent PNSB strains in producing plant growth promoting substances. The isolation resulted in 57 pure PNSB strains from 36 soil samples and 36 water samples of rice-shrimp paddy fields in Thanh Phu - Ben Tre. Among them, 49 strains survived under pH 5.0 conditions, 24 of which grew well under microaerobic light (ML) and aerobic dark (AD) conditions in a basic isolation medium (BIM) containing NaCl 5‰. Two strains (S01 and S06) with the greatest N fixation were identified by 16S rRNA techniques as Rhodobacter sphaeroides. Their N production was 16.9 mg L-1 under the ML condition and 32.1 mg L-1 under the AD condition. Moreover, two R. sphaeroides S01 and S06 strains performed P solubilization at 0.382-2.954 mg L-1 from Al-P, 3.81-4.28 mg L-1 from Fe-P, and 3.87-4.74 mg L-1 from Ca-P, and production of plant growth promoting substances, such as IAA (12.3-15.5 mg L-1), EPS (1.09-1.58 mg L-1), siderophores (10.7-53.6%) and ALA (1.68-2.82 mg L-1) under both the incubating conditions.
Inhibition of Maillard Reaction of Kepok Banana Flour with Citric Acid Legowo, Anang; Pramono, Yoyok; Hintono, Antonius; Setiani, Bhakti Etza; Nabila, Aulia; Handoko, Nisfa
Indonesian Journal of Agricultural Research Vol. 7 No. 1 (2024): InJAR, Vol. 7, No. 1, March 2024
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/injar.v7i1.15207

Abstract

Bananas are a type of climateric fruit that undergoes post-harvest ripening, so bananas are easily damaged and have a short shelf life. Kepok banana flour is one of the food diversification products that can increase add value of kepok bananas. The production of kepok banana flour produces brown flour, so the appearance of flour is less attractive. Research aimed to improve quality of kepok banana flour using citric acid. The experimental design used was a Completely Randomized Design (CRD) with 5 treatments and 4 replications. The treatments given were citric acid concentrations of 0%, 0.2%, 0.4%, 0.6%, and 0.8%(w/v). The results obtained were whiteness index values of 75.07%-78.20%, water content of 3.05%-3.55%, reducing sugar of 0.03%-0.012%, color of 1.76-2.16, aroma of 2.00-2.80, and overalls of 2.68-2.92. Increase in the citric acid concentration may increase the reducing sugar, whiteness index, and water content kepok banana flour. The best treatment in the study was a concentration of 0.8% among others.
Evaluating the Shelf Life of Chilled Raw and Pasteurized Goat Milk: An Analysis of Physicochemical and Microbial Content Ibrahim, N. S.; Zahari, N. A.; Nizam, N. I. Shamsul
Indonesian Journal of Agricultural Research Vol. 7 No. 1 (2024): InJAR, Vol. 7, No. 1, March 2024
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/injar.v6i3.15241

Abstract

Goat milk offers a variety of health benefits. The objective of this study is to evaluate the influence of refrigerated storage on the quality of unprocessed and pasteurized goat milk within a defined timeframe. In addition, also analyzes the chemical and microbiological composition of both raw and pasteurized goat milk during refrigerated storage to assess its longevity. Goat milk samples were obtained from healthy Saanen female goats, aged 3-4 years, with a body condition score (BCS) ranging from 2 to 3. The samples were taken from UniSZA Pasir Akar farm in Besut, Terengganu, Malaysia. The milk samples were processed through pasteurization. Exactly 10 goats were meticulously chosen, with each goat yielding 1 liter of milk. The goats were segregated into two cohorts: one cohort for raw milk (n=5) and the other for pasteurized milk (n=5). Subsequently, the milk samples from both groups were subjected to chilling storage experimentation at the food technology laboratory of Universiti Sultan Zainal Abidin (UniSZA) in Besut. The milk samples (duplicates) were monitored for 42 days to assess their physical characteristics. The pasteurized goat milk samples were evaluated for milk composition (fat, solid non-fat, protein, and lactose) and microbial contents (TPC and EMB) from Week 0 to Week 6. The effect of shelf life, composition values, and bacterial growth were measured weekly, and the data were presented descriptively (SEM±STD) with paired T-Test as the statistical analysis, considering p<0.15 as a significant difference. The findings revealed a downward trajectory in the physical attributes and chemical makeup of both unprocessed and pasteurized goat milk throughout the storage duration, resulting in decreases in fat, solid non-fat, protein, and lactose. The microbiological investigation revealed increased microbial levels in both raw and pasteurized milk after two weeks. Nevertheless, there was a subsequent decrease in the number of microorganisms from week 3 to week 6, indicating a phase of natural bacterial decline caused by limited nutrients and competition among bacteria. The study emphasizes the significance of maintaining sustainability in dairy production and addressing food safety concerns. It is crucial for customers to be informed about the duration of safe consumption of pasteurized milk and the potential threat of bacterial growth during prolonged cold storage
Effect of Calcium Chloride and Trisodium Phosphate Fortification on Low Fat Buffalo Milk Cheeses Perveen, R.; Butt, M.S.; Elahi, U.; Babur, M.N.
Indonesian Journal of Agricultural Research Vol. 7 No. 2 (2024): InJAR, Vol. 7, No. 2, July 2024
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/injar.v7i2.15493

Abstract

Cheese is a dairy product that is highly preferred by consumers. Cheese is a delectable and nutritious food item. Enhancing the quality of cheese necessitates innovation in cheese processing. The objective of the study was to determine the impact of calcium chloride and trisodium phosphate on the physical, chemical, microbiological, and rheological characteristics (namely firmness) of low-fat buffalo milk cheeses. This study had a fully randomized design, consisting of nine treatments and three replications. The cottage cheese, mozzarella, and cheddar were treated with varying quantities of calcium chloride and trisodium phosphate (10, 20, and 30 mM) and then stored for a period of 30 days. The cheeses supplemented with salt exhibited a noteworthy (p≤0.05) rise in pH, total nitrogen (TN), non-casein nitrogen (NCN), and non-protein nitrogen (NPN) for nearly all treatments. However, a subsequent decline was noted after storage. Similarly, the hardness (N) significantly improved (from 330.33 to 454) among treatments and reduced (from 427 to 276.33) after 30 days of storage, with a p-value of ≤0.05. In addition, the total plate count (TPC) and total viable count (TVC) showed an upward trend during the ripening phase. In conclusion, it was observed that the physicochemical, rheological, and microbiological quality characteristics of cheeses can be effectively regulated with appropriate mineral fortification.

Page 15 of 18 | Total Record : 179

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