전체 선택해제
총 134건 검색
본문검색 결과만 보기
-
작물모형 평가를 위한 통계적 방법들에 대한 비교
김준환, 이충근, 손지영, 최경진, 윤영환, Kim. Junhwan, Lee. Chung-Kuen, Shon. Jiyoung, Choi. Kyung-Jin, Yoon. Younghwan 한국농림기상학회 한국농림기상학회지 8 Pages
한국농림기상학회 한국농림기상학회지 2012, Vol.14 No.4 269-276 (8 pages)
작물모형 평가에 사용되거나 사용할 수 있는 9가지 지표를 소개하였으며 이들의 특징은 다음과 같다. efficiency of model (EF)와 index of agreement (d)은 dimension이 없고 관측수(n)에 의존적이지 않았으며, dimension에 대해서만 자유로운 것은 relative root mean square error (RRMSE), bias factor (Bf)와 accuracy factor (Af)이다. Root mean sqruar, mean error, mean absolute error들은 관측수와 dimension에 영향을 받기 때문에 판단 시 주의가 필요하다. 따라서 이들의 특징을 파악하여 목적에 맞게 모형의 성능을... -
Identification of Plant Viruses Infecting Pear Using RNA Sequencing
Nam-Yeon Kim, Hyo-Jeong Lee, Hong-Sup Kim, Su-Heon Lee, Jae-Sun Moon, Rae-Dong Jeong 한국식물병리학회 The Plant Pathology Journal 10 Pages
한국식물병리학회 The Plant Pathology Journal 2021, 37권 3호 5 258-267 (10 pages)
is a widely cultivated and commercially important fruit crop, which is occasion- ally subject to severe economic losses due to latent viral infections. Thus, the aim of the present study was to ex- amine and provide a comprehensive overview of virus populations infecting a major pear cultivar (‘Singo’) in Korea. From June 2017 to October 2019, leaf samples (n = 110) of pear trees from 35 orchards in five major pear-producing regions were collected and subjected to RNA sequencing. Most... -
Identification and Characterization of Xanthomonas arboricola pv. juglandis Causing Bacterial Blight of Walnuts in Korea
Hyun Sup Kim, Wonsu Cheon, Younmi Lee, Hyeok-Tae Kwon, Sang-Tae Seo, Kotnala Balaraju, Yongho Jeon 한국식물병리학회 The Plant Pathology Journal 15 Pages
한국식물병리학회 The Plant Pathology Journal 2021, 37권 2호 5 137-151 (15 pages)
The present study describes the bacterial blight of wal- nut, caused by Xanthomonas arboricola pv. juglandis (Xaj) in the northern Gyeongbuk province, Korea. Dis- ease symptoms that appear very similar to anthracnose symptoms were observed in walnut trees in June 2016. Pathogens were isolated from disease infected leaves, fruits, shoots, bud, flower bud of walnut, and cultured onto yeast dextrose carbonate agar plates. Isolated bac- teria with bacterial blight symptoms were character- ized for... -
Screening and Application of Bacillus Strains Isolated from Nonrhizospheric Rice Soil for the Biocontrol of Rice Blast
Yuexia Sha, Qingchao Zeng, Shuting Sui 한국식물병리학회 The Plant Pathology Journal 13 Pages
한국식물병리학회 The Plant Pathology Journal 2020, 36권 3호 4 231-243 (13 pages)
Rice blast, caused by Magnaporthe oryzae, is one of the most destructive rice diseases worldwide. The aim of this study was to screen bacterial isolates to efficiently prevent the occurrence of rice blast. A total of 232 bacterial isolates were extracted from nonrhizospheric rice soil and were screened for antifungal activity against M. oryzae using a leaf segment assay. Strains S170 and S9 showed significant antagonistic activity against M. oryzae in vitro and in leaf disk assays, and... -
Bacteriophage Usage for Bacterial Disease Management and Diagnosis in Plants
Nguyen Trung Vu, Chang-Sik Oh 한국식물병리학회 The Plant Pathology Journal 14 Pages
한국식물병리학회 The Plant Pathology Journal 2020, 36권 3호 2 204-217 (14 pages)
In nature, plants are always under the threat of pests and diseases. Pathogenic bacteria are one of the ma- jor pathogen types to cause diseases in diverse plants, resulting in negative effects on plant growth and crop yield. Chemical bactericides and antibiotics have been used as major approaches for controlling bacterial plant diseases in the field or greenhouse. However, the appearance of resistant bacteria to common antibiot- ics and bactericides as well as their potential negative effects... -
Chlorophyll a Fluorescence Parameters of Hulled and Hull-less Barley (Hordeum vulgare L.) DH Lines Inoculated with Fusarium culmorum
Tomasz Warzecha, Edyta Skrzypek, Tadeusz Adamski, Maria Surma, Zygmunt Kaczmarek, Agnieszka Sutkowska 한국식물병리학회 The Plant Pathology Journal 13 Pages
한국식물병리학회 The Plant Pathology Journal 2019, 35권 2호 3 112-124 (13 pages)
Barley worldwide is affected seriously by Fusarium seedling blight (FSB) and Fusarium head blight (FHB) diseases caused by the Fusarium species. The objective of this study was to facilitate the resistance of hulled and hull-less barley at different growth stages to F. culmorum according to direct parameters: disease rating (DR), fresh weight of leaves and roots, kernel weight per spike, kernel number per spike, plump kernels, and indirect parameters - chlorophyll a fluorescence (CF). Plate... -
Selection of Reference Genes for Real-time Quantitative PCR Normalization in the Process of Gaeumannomyces graminis var. tritici Infecting Wheat
Li-hua Xie, Xin Quan, Jie Zhang, Yan-yan Yang, Run-hong Sun, Ming-cong Xia, Bao-guo Xue, Chao Wu, Xiao-yun Han, Ya-nan Xue, Li-rong Yang 한국식물병리학회 The Plant Pathology Journal 8 Pages
한국식물병리학회 The Plant Pathology Journal 2019, 35권 1호 2 11-18 (8 pages)
Gaeumannomyces graminis var. tritici is a soil borne pathogenic fungus associated with wheat roots. The accurate quantification of gene expression during the process of infection might be helpful to understand the pathogenic molecular mechanism. However, this method requires suitable reference genes for transcript normalization. In this study, nine candidate reference genes were chosen, and the specificity of the primers were investigated by melting curves of PCR products. The expression... -
Optical Sensing for Evaluating the Severity of Disease Caused by Cladosporium sp. in Barley under Warmer Conditions
한국식물병리학회 The Plant Pathology Journal 5 Pages
한국식물병리학회 The Plant Pathology Journal 2018, 34권 3호 9 236-240 (5 pages)
tested three optical methods: soil-plant analysis development (SPAD) chlorophyll index, photochemical reflectance index (PRI), and maximum quantum yield (Fv/Fm). These rapid evaluation methods have not been used in studies focusing on disease stress, although some studies have used these methods to monitor other stresses. These three indicative parameters revealed that diseased barley exhibited lower values of these parameters than normal, and with the increase in disease severity, these values... -
Computer-Aided Drug Discovery in Plant Pathology
한국식물병리학회 The Plant Pathology Journal 14 Pages
한국식물병리학회 The Plant Pathology Journal 2017, 33권 6호 1 529-542 (14 pages)
Control of plant diseases is largely dependent on use of agrochemicals. However, there are widening gaps between our knowledge on plant diseases gained from genetic/mechanistic studies and rapid translation of the knowledge into target-oriented development of effective agrochemicals. Here we propose that the time is ripe for computer-aided drug discovery/design (CADD) in molecular plant pathology. CADD has played a pivotal role in development of medically important molecules over the last three... -
Relationships between Genetic Diversity and Fusarium Toxin Profiles of Winter Wheat Cultivars
한국식물병리학회 The Plant Pathology Journal 19 Pages
한국식물병리학회 The Plant Pathology Journal 2015, 31권 3호 4 226-244 (19 pages)
Fusarium head blight is one of the most important and most common diseases of winter wheat. In order to better understanding this disease and to assess the correlations between different factors, 30 cultivars of this cereal were evaluated in a two-year period. Fusarium head blight resistance was evaluated and the concentration of trichothecene mycotoxins was analysed. Grain samples originated from plants inoculated with Fusarium culmorum and naturally infected with Fusarium species. The genetic...
