• Title/Summary/Keyword: Rural resource

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Assessment of the resistance of bacterial soft rot caused by Pectobacterium carotovorum subsp. carotovorum KACC 21701 in Kimchi cabbage genetic resources

  • Parthiban Subramanian;Ho Chul Ko;Seong-Hoon Kim;Jae Eun Lee;Aejin Hwang;Bichsaem Kim;Yoon-Jung Lee;Awraris Derbie Assefa;Onsook Hur;Nayoung Ro;Jung Sook Sung;Ju Hee Rhee;Ho-Sun Lee;Bum-Soo Hahn
    • Korean Journal of Environmental Biology
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    • v.40 no.4
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    • pp.433-441
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    • 2022
  • Bacterial phytopathogen Pectobacterium causes soft rot disease in several vegetable crops globally, resulting in heavy agricultural losses at both the pre and postharvest stages. The present work was carried out to screen Kimchi cabbage genetic resources conserved at the National Agrobiodiversity Center, Rural Development Administration, Korea, for resistance against the soft rot pathogen Pectobacterium carotovorum subsp. carotovorum KACC 21701 over a period of three years (from 2020 to 2022). Infection of the phytopathogen was carried out at four-leaf stage and for each accession, twenty-five plants per germplasm were infected with KACC 21701. Kimchi cabbage cultivars Wangmatbaechu, Seoulbaechu, and CR Kiyoshi were used as control. Seven-days post-infection, the Disease Index (DI) values were manually recorded from zero to four, zero matched perfectly heathy plants and four completely dead plants. The 682 accessions of Kimchi cabbage exhibited varying degrees of disease resistance to KACC 21701 and thirty accessions, exhibiting a DI≤2, were considered for replication studies. During the replication studies, four landrace germplasms (IT102883, IT120036, IT120044, and IT120048) and one cultivar(IT187919) were confirmed to be moderately susceptible to KACC 21701. Results of the preliminary screening as well as replication studies were documented for the all the 682 germplasms. Addition of such information to the passport data of stored germplasms might serve as potential bio-resource for future breeders and researchers to develop resistant varieties or study the mechanisms involved in resistance of plants to such phytopathogen.

Relation of the Natural Amenity and Population Change (자연어메니티가 인구 변화에 미치는 영향에 관한 연구)

  • Park, Mee-Jeong;Nam, Nam-Su;Jang, Min-Won;Lee, Jeong-Jae
    • Journal of Korean Society of Rural Planning
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    • v.14 no.4
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    • pp.1-9
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    • 2008
  • Many urban people are attracted to the recreational opportunities and attractions of rural areas, such as beautiful scenery, lakes, mountains, forests, and resorts. Furthermore, rural development planning increasingly emphasizes the integration of resource extractive industries with non-market-based recreational and amenity values. This article outlines a method to estimate an amenity level of rural areas such as natural amenities index and shows the relation of the natural amenity and population growth. The results revealed that natural amenity classifying each region can be explained with geographical characteristics, temperature-humidity, and sunshine duration time. In analysis with population, natural amenity does not exactly explain that but can be one of the important factor of population change.

Evaluating Accessibilities to Village Community Centers via Rural Amenity Resources Information (농촌어메니티자원정보를 활용한 마을회관 접근성 평가에 관한 연구)

  • Chin, Hyun Seung;Park, Mee Jeong;Yun, Do Sic
    • Journal of Korean Society of Rural Planning
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    • v.20 no.2
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    • pp.57-69
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    • 2014
  • Village community centers are public locations where residential members of communities gather for various group meetings, social support, public information and recreational activities. Since the residents voluntarily operate the facilities, a convenient access to the center is a very important criterion for choosing where such facilities should be distributed throughout the districts. In particular, it is highly desirable to locate them within walking-distances from the residential populations. In this work, we have evaluated the accessibility to the community centers in several rural areas based on the surveys that were collected from year 2005 to 2012. We used the collected rural amenity resource distributions of the area for the evaluating the accessibilities to village center. More specifically, we considered some factors such as residential district and fraction of elderly population in the vicinity.

A Survey on Preservation of Traditional Stone Fences in Jeju (제주 전통돌담의 유지보전에 관한 의식조사)

  • Rhee, Sang-Young
    • Journal of Korean Society of Rural Planning
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    • v.13 no.1 s.34
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    • pp.33-40
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    • 2007
  • The purpose of this paper is to analyze the value of stone fences in Jeju Island. The result that executes attitude survey to local resident and visitor can be summarizing as following. First are the function and the value of Jeju traditional stone fences. Local resident favored the culture heritage succession and evaluated its' usage Value highly. Visitors also have favored rural landscape offer function and evaluated inheritance value (Bequest Value) highly. Secondly, 80.5% of visitors, 78.1% of local resident have formed opinion about preservation of traditional stone fences. But the Willingness to pay for traditional stone fences fund was raised by 38.6% in local resident and 55.7% in visitor. The reason that willingness to pay does not exist is that it is chargeable to connection group and government, or it has no money to pay. Thirdly, local resident wanted to use made up stone fence preservation fund in rural landscape offer function. Visitor wanted that it is used to raise various function of stone fence.

Analysis on the Classification standards and Characteristics of Experience Program in Government Support Rural.Mountain Villages (정부지원 농.산촌마을 체험프로그램 분류기준 및 특성분석)

  • Lee, Gyeong-Jin;Lee, Hyun-Hee;Song, Byeong-Hwa
    • Journal of Korean Society of Rural Planning
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    • v.13 no.3
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    • pp.73-82
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    • 2007
  • Recently, plans to revitalize rural areas in addition to farming are actively having been groped since given agricultural conditions destituted. One of the plan is the 'Rural Tourism' which to sell to urbanites by merchandising rural and pleasant characteristics possessed by rural areas. As a part of the rural-urban exchange, analyzed the features of the experience programs operated by each village by selecting 152 rural-mountain villages where is supporting and presented results by synthesizing above conclusion. The results acquired through such research are as following. Currently, villages operate mainly with the experience program related to general agricultural life styles by synthesizing special features of experience programs with high frequency in operations as the present status of the rural-mountain villages and showed negative trends dependant to the existing natural resources and easy in operations. Moreover, the operation of the experience which are expected to publicize the village and create large incomes were insufficient, analyzed not to be stimulate purchasing activities by lack of connections among experience programs and only simple staged experiences are mainly operated due to low operation frequency of experience programs which can be operated with special interests or professional characteristics.

A Study on the Analyze and Improvements for Rural Landscape Planning Guideline - Focused on Rural Landscape Planning Guideline in Western Australia - (국내 농촌 경관계획 가이드라인의 개선방향에 관한 연구 - West Australia의 경관계획 매뉴얼을 대상으로 -)

  • Shin, Jae-Sun;Kim, Sang-Bum
    • Journal of Korean Society of Rural Planning
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    • v.22 no.2
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    • pp.57-65
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    • 2016
  • Landscape elements of historical and cultural value and elements that have negative impact on landscape due to reckless development teem in rural area. Due to this, local government has established a visual landscape plan. The purpose of this study is to analyze the process and content of domestic rural landscape planning process and to suggest improvements for it. For that, this study measure guideline of Ministry of Agriculture, Food and Rural Affairs against guideline of Ministry of Land, Infrastructure and Transport. To analyze the landscape planning guideline of australia which is similar to domestic rural landscape planning process, and to compare both guidelines. The results of this study are as follow. The stage of landscape resource survey and assessment progressed systematically, but it was not practical because for the lack of survey and assessment method. Therefore, it should be suggested for the survey and assessment technique. The rural landscape plan, established in master planning stage, do not necessarily reflect local government's landscape management on the ground of abstract technic of landscape management. For this sake, to develop evaluation method for development of landscape element seems necessary.

An Imputation for Nonresponses in the Survey on the Rural Living Indicators (농촌생활지표조사에서 무응답 대체 : 사례)

  • Cho, Young-Sook;Chun, Young-Min;Hwang, Dae-Yong
    • The Korean Journal of Applied Statistics
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    • v.21 no.1
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    • pp.95-107
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    • 2008
  • Survey on the rural living indicators was the statistic approved from National Statistical Office and the survey executed by rural resources development institute. This study was used the raw data of survey on the rural living indicators in 2005. After editing procedure for raw data, we were studied 1,582 households which is acquired through elimination of case included nonresponses, and imputed a nonresponses of 15 item selected from 146 item. The imputation methods and efficiency of imputation for simulation was adapted differently from type of data. For continuous data, we imputed the nonresponses with mean imputation, regression imputation, adjusted grey-based k-NN imputation(DU, DW, WU, WW) and compared the results with RMSE. For categorical data, we imputed the nonresponses with mode method, probability imputation, conditional mode method, conditional probability method, hot-deck imputation, and compared the results with Accuracy. By the results, regression imputation and adjusted grey-based k-NN imputation appropriated for continuous data and hot-deck imputation appropriated for categorical data.

A Study on Greenhouse Farmers' Willingness to Pay of Agricultural Water Supply through Pipeline (관수로 농업용수 공급에 대한 시설재배 농가의 비용 지불의사 연구)

  • Lim, Cheong-Ryong;Park, Seong-gyeong;Chung, Won-ho
    • Journal of Korean Society of Rural Planning
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    • v.24 no.2
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    • pp.109-114
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    • 2018
  • In this study, we estimate the greenhouse farmers' willingness to pay of agricultural water supply through pipeline. First, in the questionnaire design, orthogonal design and block design were used to enhance the ease of survey. Second, the theoretical model was constructed through the setting of the probability utility function, and the parameters were estimated by using the conditional logit model. Third, all of the estimation coefficients were statistically significant at the 1% significance level. The results of analysis are summarized as follows. First, the probability of selection is increased when maintenance is carried out by Korea Rural Community Corporation or local government. Second, the probability of selection is increased when agricultural water supply through pipeline is higher than the current level. Third, if the Korea Rural Community Corporation carries out maintenance management, the marginal willingness to pay is 44 won per ton. And if the local government carries out maintenance management, the marginal willingness to pay is 25 won per ton. Fourth, according to the quality level of agricultural water supply, the marginal willingness to pay is 101 won, 114 won and 120 won per ton, respectively. This study can be used as a basic data on the cost setting for agricultural water supply through pipeline.