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RJOAS: Russian Journal of Agricultural and Socio-Economic Sciences

ISSN 2226-1184 (Online)

RJOAS is awarded the DOAJ Seal of Approval for Open Access Journals!

ISSUE 1(73), January 2018

Full-cover issue: PDF, 6.35 Mb (download)

Table of Content

Bulatović J., Rajović G.

  • EXTERNAL MOBILITY OF THE POPULATION OF MONTENEGRO: OVERVIEW; pp. 3-9
  • Language of article: English
  • Crossref DOI: 10.18551/rjoas.2018-01.01

Abstract and key words:

  • Spatial mobility of population is one of the basic demographic determinants. Montenegro is characterized not only by internal migration, but also by external resettlement of population. An uncontrolled migration lead to the demographic polarization of the country is to widening of the emigration areas and narrowing if the immigration ones. So, Montenegro made a stride towards a new millennium with a polarized spatial distribution of population.
  • Montenegro, region, population, external migration.

Abdurahim A., Sumartono, Hanafi I.

  • AGRICULTURAL DEVELOPMENT PLANNING BASED ON LOCAL RESOURCES IN DEPOK CITY, INDONESIA; pp. 10-16
  • Language of article: English
  • Crossref DOI: 10.18551/rjoas.2018-01.02

Abstract and key words:

  • The background of this study is that Dewa Starfruit as a local resource in Depok City is threatened with extinction. The absence of regulations that protect these local resources and high rate of land use conversion causes decreasing number of starfruit plants and production. Starfruit farmers tend to switch professions to non-agricultural occupations. In national level, the largest number of agricultural business households experienced the greatest decline in horticulture subsector by 37.4% (Agricultural Census 2013). The elected regional head has branded Depok City with the tagline "friendly city" replacing Dewa Starfruit. The government's orientation and support for Dewa starfruit is fading away. Therefore, Depok City Government, especially DKP3, need to develop local resource-based agriculture development plan in order to be able to maintain local resources while improving it for society welfare. This research uses qualitative approach. The research informants were DKP3 apparatus of Depok City, Bappeda (Regional Government) apparatus of Depok City, field officer and farmer group. Data collection techniques used in-depth interviews and documentary studies. Data analysis utilized interactive model. Research results indicate that the development of local resource-based agricultural development plans has not gone well. Despite various supporting factors, there are existing inhibiting factors which are land use conversion had never been discussed; DKP3 Depok City efforts to safeguard agricultural issues in musrenbang has not been optimal; no field data update, either by couseling workers or farmers; DKP3 Depok City prioritized RPL activity; uneducated farmers; and absence of regional head support.
  • Planning, agriculture, local resources, plants, agricultural business.

Kadarwati F.T., Khuluq A.D.

  • TEST OF COTTON LINES WITH DROUGHT TOLERANT INTERCROPPED WITH MAIZE; pp. 17-24
  • Language of article: English
  • Crossref DOI: 10.18551/rjoas.2018-01.03

Abstract and key words:

  • The distribution of cotton cultivation is mostly located in the sub-optimal land due to competition with the field crop. The cotton cultivation in Indonesia is always done through intercropping with pulses. This research aims to test the suitability of cotton lines with drought-tolerant intercropped with maize. The research is conducted in February to August 2016 at Asembagus Experimental Garden, Situbondo. Planting materials used in this research are 6 lines and 2 varieties of drought-tolerant cotton consist of strain 03001/9, 03008/24, 03008/25, 03017/13, 06062/3, 06063/3, kanesia 10 and kanesia 14. The research prepared by the draft randomized group with three replications. The observation parameter consists of plant height, canopy width, number of generative branches, number of fruits, fruits weight, the yield of seed cotton, and corn dry results. The research result shows that the strain 03017/13 and 03008/24 have the highest consecutive acceptance of IDR 17,860,681 and IDR 17,520,879, the increase in revenue compared to monoculture is IDR 6,278,473 and IDR 5,668,191, seed cotton production amounted to 2470.01 kg/ha and 2329.72 kg/ha, maize production amounted to 2001.54 kg/ha and 2112.74 kg/ha, LER 1.68 and 1.60, number of harvested fruit of 12.66 and 11.76 fruits/plant, fruit weight of 4.05 and 4.17 g/fruit.
  • Intercropping, cotton, corn, field study, variety.

Mh I.

  • IMPLEMENTATION OF EMPOWERMENT PROGRAM FOR FISHERMAN SOCIETY: A THEORETICAL REVIEW; pp. 25-33
  • Language of article: English
  • Crossref DOI: 10.18551/rjoas.2018-01.04

Abstract and key words:

  • This article aimed at describing and explaining a set of theoretical review on the implementation of human empowerment program for fisherman society. This article was composed using review of related literature method. The result of the review points out some interesting findings: policy is a set of actions that contain some agreements agreed by a person or a group of people to solve certain problem or to achieve certain goal; implementation of a policy involves a long process in implementing the program which should be oriented to achieve the predetermined goals as stated in the policy; fisherman society can be classified into several categories, such as traditional fisherman, subsystem fisherman, pure fisherman, recreational and commercial fisherman; traditional fisherman refers to those who seize resources from the nature using traditional tools, small capital, and relatively simple organization; empowerment is an effort to develop certain capability or potential by driving, motivating and raising society’s awareness upon their own capability to be explored; society empowerment is an attempt to strengthen the dignity of certain society, to get themselves free from poverty or poor quality of life. In another word, empowerment is a program that helps a society to grow their ability and independence.
  • Policy, implementation, empowerment, fisherman.

Mara A., Amir A., Napitupulu D., Zamzami

  • INCREASING THE PRODUCTION OF RUBBER PLANTATIONS AND INVESTMENT OPTIONS OF RUBBER FARMERS IN JAMBI PROVINCE; pp. 34-39
  • Language of article: English
  • Crossref DOI: 10.18551/rjoas.2018-01.05

Abstract and key words:

  • The objective of the research is to analyze the increase of rubber plantation production in Jambi Province, the factors affecting production, and the investment choice for farmers in increasing production. To know the factors that influence the production of smallholder rubber plantation in Jambi Province used multiple linear regression analysis. Furthermore, to explain the investment options for rubber farmers there are two options, namely intensification or extensification. The choice of intensification will lead to increased land productivity. Extensification options do not lead to increased productivity because there is no technological change, especially the use of modern inputs. The result of research shows that productivity of rubber plantation in Jambi Province which generally use traditional method is still low, that is equal to 865 kg/ha/year; the development of rubber plantation production in Jambi Province is quite rapid, at 2.65% per year (however, the increase in productivity of smallholder rubber plantations is slow, at 0.238% per year); the factor of the area of smallholder rubber plantation and the number of rainy days has a significant effect on rubber plantation production. This study reveals that farmers are more likely to choose extensification that can be done traditionally with lower risk levels, while intensification options should be done in a modern way, greater cost, and a greater risk of failure.
  • Extensification, intensification, production, productivity.

Yulianti L., Herwanti T., Hermanto

  • PLANNING ANALYSIS OF LAND AND BUILDING TAX OF RURAL AND URBAN SECTORS AFTER BEING LOCALLY TAXED; pp. 40-46
  • Language of article: English
  • Crossref DOI: 10.18551/rjoas.2018-01.06

Abstract and key words:

  • This study aims to analyze the land and building tax planning of rural and urban sectors implemented by the Regional Revenue Office of Sumbawa Regency and to examine deeper the planning problems arising from the Land and Building Tax of Rural and Urban sector, hereinafter referred to as PBB-PP after prevailing the Law of Regional Tax and Regional Retribution #28 of 2009 (Law of PDRB). Data analysis is conducted by using Miles and Hubberman models. The results indicate that there are several factors that have not been optimal in land and building tax of rural and urban sector planning. These factors are human resources, administrative completeness, local policy, control and accountability.
  • Land, building, tax, planning, law, policy, supervision.

Suharto S., Ligery F.

  • THE INFLUENCE OF BANCASSURANCE PRODUCTS AND RESPONSIVENESS TO CONSUMER BEHAVIOR AND CORPORATE IMAGE AS MEDIATION VARIABLES: A STUDY AT BANK METRO MADANI, METRO CITY; pp. 47-57
  • Language of article: English
  • Crossref DOI: 10.18551/rjoas.2018-01.07

Abstract and key words:

  • Behavior of consumers is an important factor in the purchase decision. The purpose of research is to know the influence of bancassurance products, responsiveness and company image to the consumer behavior. This research, using primary data collected by the method of explanatory survey and sampling techniques in the form of forcible entry, sampling of 250 respondents in Bank of Metro Madani, Metro City. The results of research: bancassurance products directly affect the conduct of consumer respondent; company image directly affects the conduct of consumers; bancassurance products directly affect to company image.
  • Bancassurance products, responsiveness, corporate image, consumer behavior.

Seo A.Y., Hidayat K., Sunarti

  • THE EFFECT OF EXTERN AND INTERN ENVIRONMENT TOWARD BUSINESS STRATEGIES AND THEIR IMPACT TOWARD BUSINESS PERFORMANCE; pp. 58-64
  • Language of article: English
  • Crossref DOI: 10.18551/rjoas.2018-01.08

Abstract and key words:

  • This study was done to see the effect of extern and intern environment toward business strategies and the performance of micro, small and medium enterprises. The population of this study was business owners in Bajawa Regency, Nusa Tenggara Timur Province, Indonesia, represented by 122 respondents as the samples of this study. The samples were chosen using a proportionate stratified random sampling. The data of this study were then analyzed using Partial Least Square technique. The result of this study shows that extern and intern environment have significant effects toward business strategies and performance as mediators.
  • Enterprise, extern environement, intern environment, business strategies, business performance.

Herawati Y., Lupikawati M., Purwati E.

  • THE INFLUENCE OF LEARNING ORGANIZATION AND ORGANIZATIONAL STRESS ON PERFORMANCE OF CREATIVE INDUSTRY SMES WITH THE CREATIVITY OF ITS OWNERS/ACTORS AS MEDIATOR; pp. 65-78
  • Language of article: English
  • Crossref DOI: 10.18551/rjoas.2018-01.09

Abstract and key words:

  • The purpose of this study was to determine the influence of organizational learning and organizational stress on the performance of creative industry SMEs with the creativity of its owners/actors as mediator. Type of data used in this research was primary data, namely in the form of questionnaires and partly done also with interviews directly. Data analysis technique used was path analysis method. The population of this research was the owners of SMEs located in Palembang City under the guidance of the Ministry of Cooperatives and SMEs of South Sumatra Province based on data of 2016, which is classified as creative industry SMEs in the area of Palembang City as much as 65 SMEs. The sampling technique was census method. Based on that number, the returned questionnaires only 63 questionnaires from 65 questionnaires distributed. The results of research stated: first hypothesis is accepted where there is influence of learning organization on creativity of SMEs actors, with the influence of 0.705 (70.5%); second hypothesis is rejected, there is no influence of organizational stress on creativity of SMEs owners. Third hypothesis is accepted, where there is influence of learning organization on performance of creative industry SMEs, with the influence of 0.229 (22.9%). Fourth hypothesis is accepted, there is influence of organizational stress on performance of creative industry SMEs, with the influence of 0.229 (22.9%). Fifth hypothesis is accepted,  where there is influence of creativity of SMEs owners on performance of creative industry SMEs, with the influence of 0.254 (25.4%). Sixth hypothesis is accepted, where there is influence of learning organization on performance of creative industry SMEs through creativity of SMEs owners as mediator variable with total effects of 0.589 or 58.9%. Seventh hypothesis is accepted, where is influence of organizational stress on performance of creative industry SMEs through creativity of SMEs owners as mediator variable, with total effects of 0.219 or 21.9%.
  • Learning organization, organizational stress, creativity, creative industry.

Johar D.S., Suharyono, Sunarti

  • UTILITARIAN AND HEDONIC VALUES THAT INFLUENCE CUSTOMER SATISFACTION AND THEIR IMPACT ON THE REPURCHASE INTENTION: ONLINE SURVEY TOWARDS BERRYBENKA FASHION E-COMMERCE'S BUYER; pp. 79-85
  • Language of article: English
  • Crossref DOI: 10.18551/rjoas.2018-01.10

Abstract and key words:

  • This research aims to describe the influence of utilitarian and hedonic values toward customer satisfaction and repurchase intentions. The sampling method used for research is purposive sampling with 141 respondents who bought Berrybenka products. Based on the Structural Equation Modeling, it is found that utilitarian and hedonic values are significant towards repurchase intention through customer satisfaction.
  • Utilitarian value, hedonic value, customer, satisfaction, repurchase intention, e-Commerce.

Akbar A., Amir A., Delis A., Machudin A.

  • EFFECT OF MONETARY VARIABLES ON CONVENTIONAL BANK PERFORMANCE AND SHARIA BANKS IN INDONESIA, 2010-2017; pp. 86-91
  • Language of article: English
  • Crossref DOI: 10.18551/rjoas.2018-01.11

Abstract and key words:

  • The purpose of this study to determine the influence of monetary, interest rate, rupiah exchange rate and money supply on conventional bank performance and performance of sharia bank. Population in this research is all conventional banking and all sharia banking in Indonesia for 2010-2017. The sample is conventional bank as much as 14 banks, and sharia bank as much as 6 banks with time series data of 30. The method used is Partial Least Square Analysis. The results showed that the interest rate has no significant effect on the performance of conventional banks and sharia banks. The exchange rate has a significant and positive effect on the performance of both conventional and sharia banks. While the variable amount of money in circulation has a negative and real effect on the performance of conventional banks and sharia.
  • Interest rate, exchange rate, total money supply, bank Performance.

Verozika A.

  • THE IMPACT OF COMPENSATION AND JOB MOTIVATION ON EMPLOYEE PERFORMANCE WITH JOB SATISFACTION AS MEDIATING VARIABLE: A STUDY AT BALI REGIONAL OFFICES OF DIRECTORATE GENERAL OF TAXES; pp. 92-97
  • Language of article: English
  • Crossref DOI: 10.18551/rjoas.2018-01.12

Abstract and key words:

  • The purpose of this study is to analyze and obtain empirical evidence related to the compensation and job motivation toward the performance of employees of the Directorate General of Taxes through job satisfaction as mediating variables. The subject of this research is the employee of Bali Regional Office of Directorate General of Taxes. This research is explanatory with the number of respondents as many as 190 people. Methods of data collection through surveys using questionnaires. Data analysis technique used in this research is Regression Analysis and Path Analysis. The findings of this study showed that Compensation and Job Motivation had a significant effect towards Job Satisfaction, Compensation and Job Motivation had a significant effect towards Employee Performance. Furthermore, Job Satisfaction had a significant effect towards Employee Performance.
  • Compensation, motivation, job satisfaction, employee performance.

Indradewi A.A., Nirbito J.G.

  • THE IMPACT OF THE FIRST GENERATION LEADERSHIP IN THE HUMAN RESOURCES LOYALTY GROWTH OF PT. KPA SURABAYA; pp. 98-105
  • Language of article: English
  • Crossref DOI: 10.18551/rjoas.2018-01.13

Abstract and key words:

  • The objectives of research are: to know and to analyze the first generation leadership style; to know and to analyze the advantages and disadvantages of the first generation leadership; and to know and to analyze the impact of the first generation in the growth of human resource loyalty. This research used qualitative approach. Leadership style of (Late) SHH is a combination of Transformational Leadership Style, Entrepreneurship Leadership Style, and Authoritarian Leadership Style. In SHH’s personality, who is strict and authoritative, there is a warm figure who can embrace all elements of employees at the factory of PT. KPA, and implements several types of styles in order to adapt to the situation in the field.
  • Human resources, leadership, loyalty, company.

Ningsih D.N.C., Sudarma M., Baridwan Z.

  • THE DETERMINANTS PERCEPTION OF TAX EVASION ETHICS; pp. 106-116
  • Language of article: English
  • Crossref DOI: 10.18551/rjoas.2018-01.14

Abstract and key words:

  • This study aimed to examine the determinants perception of tax evasion ethics, and combined three models based on the research of McGee et al (2012), Lau et al (2013), Lemvora et al (2013). Data collection used survey method on 148 auditors who worked at Public Accountant Office (KAP) Big Ten. The result of this study showed that  the justice and taxation systems affect significantly negative toward the perception of tax evasion ethics. Religiosity strengthened the effect of justice, taxation systems, and discrimination on the perception of tax evasion ethics.
  • Perception of ethics, tax evasion, justice, taxation systems, dicrimination, religiosity, materialism.

Dananjaya D.G.Y., Mawardi R.

  • GENDER, RELIGIOSITY, POSITIVE MOOD AND WHISTLEBLOWING INTENTION; pp. 117-123
  • Language of article: English
  • Crossref DOI: 10.18551/rjoas.2018-01.15

Abstract and key words:

  • The purpose of this study is to prove the relationship of gender, religiosity to whistleblowing intention with positive mood as a moderating variable. The sample of this research is accounting of 41 students after the purposive sampling. Data analysis technique used is correlation test. The results of study provide evidence of gender relationship to whistleblowing intentions; religiosity has no relationship to whistleblowing intentions and positive mood is able to moderate the relationship between gender and whistleblowing intentions.
  • Whistleblowing, intention, gender, religiosity, mood.

Ronny

  • CUSTOMER LOYALTY CHARACTERISTICS IN OBSTACLES OF INTERNET BANKING ADOPTIONS; pp. 124-130
  • Language of article: English
  • Crossref DOI: 10.18551/rjoas.2018-01.16

Abstract and key words:

  • This paper analyzes the characteristics of customer loyalty on the barriers in using internet banking with a qualitative approach through interviews to 10 informants who have or never used internet banking. Three types of obstacles perceived by customers include security threats, difficulty in operating internet banking, and unreliable access. There are three characteristics of customer loyalty in the face of these barriers, first, leaving internet banking categorized as low loyalty; second, limiting themselves using internet banking features categorized as medium loyalty; and third, finding solutions to overcome barriers categorized as high loyalty. The three characteristics motivated by 3 factors including customer knowledge, risk perception, and influence of other service choices.
  • Internet banking, loyalty, adoption, customer knowledge, risk perception.

Hakim R.M.A., Maulina E., Purnomo M.

  • SUPPLY CHAIN INTEGRATION IN SMALL MEDIUM ENTERPRISES: A SYSTEMATIC LITERATURE REVIEW; pp. 131-140
  • Language of article: English
  • Crossref DOI: 10.18551/rjoas.2018-01.17

Abstract and key words:

  • Nowadays, Supply Chain Integration is getting known as an element in supply chain management that can achieve the intentions of supply chain. Supply chain management application in Small Medium Enterprises is rarely understood or even never used as an important aspect in running a business. There are only a few researchers who did a research on Supply Chain Integration in SMEs, therefore intiating a research on this aspect has its own challenges. This was caused by many gaps that appear within the research as the dimentions of the research are not suitable with the business criterias. For this article researchers realized the need to perform literature reviews to perceive the development and new discoveries that appeared in earlier researches. Systematic literature review is used as the method of this research so that the review can be explained systematically. Based on the discoveries from this literature review, there are methods or framework that can be used by researchers as well as practitioner to understand the application of Supply Chain Integration. Moreover, the existence of Supply Chain Integration within a business may increase performance, efficiency, customer value added, or even competitive advantages.
  • Supply chain, integration, SMEs, systematic literature review, business.

Muhaimin A.W., Sa’diyah C., Hardana A.E.

  • FORECASTING OF DEMAND QUANTITY OF CRYSTAL SUGAR IN INDONESIA; pp. 141-145
  • Language of article: English
  • Crossref DOI: 10.18551/rjoas.2018-01.18

Abstract and key words:

  • Domestic sugar production increasingly unable to meet the needs of the community so that the shortage must be covered with imported sugar has continued to increase since 1990. Period 1991-2001, the sugar industry in Indonesia began to face a variety of significant problems. One indicator of Indonesia's sugar industry problem is the increasing trend of imports. The purpose of this research is to analyze the factors that influence the import of sugar crystal in Indonesia and to analyze the forcasting about Indonesian sugar import in the future. The projected amount of sugar imports in Indonesia in the coming years will continue to increase the import of crystal sugar in the next seven years by Indonesia reaching 425 thousand tons.
  • World sugar price, exchange rate, crystal sugar, demand.

Budi I.S., Harsono S.

  • THE EFFECT OF BRAND IMAGE AND PRODUCT ON CUSTOMER SATISFACTION AND WILLINGNESS TO PAY AT COFFEE BEAN SURABAYA; pp. 146-154
  • Language of article: English
  • Crossref DOI: 10.18551/rjoas.2018-01.19

Abstract and key words:

  • The aim of research is to determine factors influencing willingness to pay on Coffee Bean’s customers. This research used structural equation modeling with WarpPLS 5.0 software as the analysis tool. Before the analysis of hypothesis testing, outer model and inner model testing was firstly conducted. Outer model testing examined the correlation between constructs with latent variables of the research including discriminant validity, composite reliability, and average variance extracted. The data collection used convenience sampling method by randomly choosing all customers that purchase in Coffee Bean at Pakuwon Supermall Surabaya. The results showed that the proposed hypotheses were all accepted except one hypothesis on the correlation between the products and the willingness to pay in which had no significant correlation.
  • Brand image, product, customer satisfaction, willingness to pay.

Laduna R., Sun’an M.

  • THE EFFECT OF MACROECONOMIC VARIABLES ON BANKING STOCK PRICE INDEX IN INDONESIA STOCK EXCHANGE; pp. 155-162
  • Language of article: English
  • Crossref DOI: 10.18551/rjoas.2018-01.20

Abstract and key words:

  • Stock price index can be regarded as a barometer in the measuremet of a nation’s economic condition, besides it can also be used in conducting statistical analysis on the current market. Stock is the proof of one’s share in a company in the form of securities issued by the listed go-public companies. This study was conducted to measure the effect of macroeconomic variables such as inflation, interest rate, and exchange rate on banking stock price index in Indonesia stock exchange or Bursa Efek Indonesia (BEI). The results of study show that inflation and exchange rate posively influence the stock price index. The positive effect of the exchange rate shows that issuers who were positively affected by Rupiah (IDR) depreciation appear to be the most dominant group. Meanwhile, the interest rate or Suku Bunga (SBI) has a negative effect. Lower interest rate stimulates higher investments and better economic activities which increase the stock price.
  • Inflation, exchange rate, interest rate, banking, stock price index.

Perdana T., Anindita R., Suhartini

  • VALUE CHAIN ANALYSIS OF COFFEE INDUSTRY: A CASE OF JAVA PREANGER COFFEE IN WEST JAVA, INDONESIA; pp. 163-170
  • Language of article: English
  • Crossref DOI: 10.18551/rjoas.2018-01.21

Abstract and key words:

  • The main objective of this study is to identify Java Preanger coffee chain in Indonesia. Java Preanger was the first coffee from Indonesia exported to Netherland in 1711, known as a cup of Java in international market, and especially in Europe. Identifying the coffee chain processing phase from coffee crop into green bean and coffee as beverage involves many stages, starts with cultivation, harvest, post harvest and processing stage. All these process are key information for farmer to increase their product quality and market access to improve welfare.
  • Coffee, value chain, West Java, Java preanger.

Yanuarti K., Sukoharsono E.G., Achsin M.

  • ANALYSIS OF DETERMINATION FOR FAIR REPLACEMENT VALUE OF LAND ACQUISITION FOR PUBLIC INTEREST: A CASE STUDY IN KACANG BUTOR VILLAGE; pp. 171-178
  • Language of article: English
  • Crossref DOI: 10.18551/rjoas.2018-01.22

Abstract and key words:

  • Land acquisition has many obstacles due to the refusal of the landowners that will be acquired, this is because landowners disagree with the value of compensation provided by the government. This research aims to provide a solution for the problem so that the implementation of land acquisition can be done and the landowners can receive the compensation given. In this research used analytical descriptive method: to determine Fair Reimbursement Value, researcher combined the value of physical loss and the value of non-physical loss resulting from the calculation of premium, income tax, officials of the land deed, the interest of the waiting period, and other losses. The result of interview with landowners shows that they tend to choose the calculation from fair reimbursement value that calculated by researcher.
  • Land acquisition, development, public interest, fair replacement value, physical loss, non-physical loss.

Coker A.A.A., Ibrahim F.D., Ibeziako U.N.

  • EFFECT OF HOUSEHOLD DEMOGRAPHICS ON THE TECHNICAL EFFICIENCY OF COWPEA FARMERS: EVIDENCE FROM STOCHASTIC FRONTIER ANALYSIS IN NIGERIA; pp. 179-186
  • Language of article: English
  • Crossref DOI: 10.18551/rjoas.2018-01.23

Abstract and key words:

  • Technical efficiency of cowpea production in Nigeria has been associated with numerous factors, comprising institutional, production and farmer specific factors. However, outcomes regarding the latter continued to receive attention, given the resource poor nature of farming households. This study therefore examined the effects of household demographics on the technical efficiency of cowpea farmers in Niger State, Nigeria. Data were obtained through structured questionnaires administered to 286 respondents. Descriptive statistics and stochastic frontier analysis model were used for data analysis. The study revealed that household demographics and educational status have direct statistical effects on the technical efficiency of the cowpea farmers. The key challenges witnessed by respondents were lack of credit and low income as reported by 83.22 and 74.83% of the respondents respectively.
  • Household, demographics, technical efficiency, cowpea, production.

Panjaitan M.A.P., Suprajitnob E., Hardokob

  • ANTIBACTERIAL COMPOUNDS ACTIVITY OF MANGROVE LEAF EXTRACT RHIZOPHORA MUCRONATA ON AEROMONAS HYDROPHYLA; pp. 187-193
  • Language of article: English
  • Crossref DOI: 10.18551/rjoas.2018-01.24

Abstract and key words:

  • Pathogenic bacterial infections such as A.hydrophyla in fish cultivation are common problems. A.hydrophyla belongs to a group of bacteria resistant to more than one type of antibiotic. This study aims to determine the antibacterial activity of R.mucronata mangrove leaf extract and to identify potential antibacterial compounds. The research procedure includes extraction, compound refinement, phytochemical test, antibacterial activity test, and KBM-KHM Test. The results show that the antibacterial ability possessed by R.mucronata leaves crude extract increased after the extract was purified utilizing separating funnel. The lowest concentration of methanol fraction extract capable of inhibiting A.hydrophyla (KHM) growth was at 8.25±0.39 ppm, while the lowest concentration of A.hydrophyla was 32.99±1.56 ppm. Bioactive compounds contained in methanol R.mucronata leaves extract are alkaloid compounds, flavonoids, and tannins. Out of the three compounds detected, antibacterial activity is thought to be derived from flavonoid and tannin compounds.
  • Organic solvents, separating funnel, phytochemicals, extract.

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