• Title/Summary/Keyword: 이병성

Search Result 3,175, Processing Time 0.027 seconds

Study on the Control of Leaf Mold, Powdery Mildew and Gray Mold for Organic Tomato Cultivation (유기농 토마토 재배시 발생하는 잎곰팡이병, 흰가루병, 잿빛곰팡이병의 방제연구)

  • Hong, Sung-Jun;Park, Jong-Ho;Kim, Yong-Ki;Jee, Hyeong-Jin;Han, Eun-Jung;Shim, Chang-Ki;Kim, Min-Jeong;Kim, Jung-Hyun;Kim, Seung-Hyun
    • Korean Journal of Organic Agriculture
    • /
    • v.20 no.4
    • /
    • pp.655-668
    • /
    • 2012

  • Foliar diseases are major constraints to profitable organic tomato production. Especially, powdery mildew, leaf mold and gray mold of tomato occur severely on organic cultured tomatoes in Korea. This study was conducted to develop organic tomato cultivation technology using environmental-friendly disease control methods (resistance cultivar planting, air circulation fan installation, oil-egg yolk mixtures, and microbial agents). When tomatoes were cultivated in plastic film house installed with air circulation fan, daily range of temperature was decreased by $2{\sim}7^{\circ}C$, average relative humidity was decreased by 1~5% compared to those in plastic house without air circulation fan. Consequently, incidence of tomato leaf mold and tomato gray mold was reduced by 55.0% and 24.4%, respectively. Control effect of microbial agents and oil-egg yolk mixtures against major tomato diseases was examined in plastic house. As a result, the control value of microbial agents against tomato gray mold and tomato leaf mold showed at the range of 49.0~55.9 %(gray mold) and 39.2~58.2%(leaf mold), respectively. The control value of oilegg yolk mixtures against tomato powdery mildew showed 97.6%. Fifteen tomato cultivars were evaluated for disease resistance against leaf mold and powdery mildew in organically cultivated tomato field. Among 15 tomato cultivars, seven cultivars including 'Super-top' were found to be high resistant to tomato leaf mold. Also 'Powerking', one of fifteen tomato cultivars, showed to be high resistant to tomato powdery mildew.

  • https://doi.org/10.11625/KJOA.2012.20.4.655 인용 PDF KSCI

Rice Stripe Virus (RSV) Acquisition and Infection Rates According to Wing Form, Sex and Life Stage of Small Brown Planthopper (Laodelphax striatellus) (애멸구의 날개형태, 성별, 그리고 발육단계별 Rice stripe virus (RSV) 보독률과 이병률)

  • Yi, Hwi-Jong;Kang, Mi-Hyeong;Choi, Man-Young;Koo, Hyun-Na;Kim, Gil-Hah
    • Korean journal of applied entomology
    • /
    • v.54 no.4
    • /
    • pp.419-423
    • /
    • 2015

  • Small brown planthopper (SBPH), Laodelphax striatellus, gives a lot of damage to the rice by insect vector of rice stripe virus (RSV). This study compared the RSV acquisition and infection rates according to wing form, sex, and life stage of SBPH. The RSV acquisition rate in macropterous and brachypterous was 60.7% and 63.1%, respectively. The RSV acquisition rate by sex was 61.9% in female and 52.2% in male. However, there was no difference in significance. The RSV acquisition rate of nymphs and adults was 51.2% and 58.7%, respectively. The RSV infection rate by wing form was 53.3.% in macropterous and 48.2% in brachypterous. According to life stage, nymphs was 38.2% and adults was 42.6%. There was no difference in significance. On the other hand, female and male of RSV infection rate was 50.5% and 22.3%, respectively. There was a significant difference. Additionally, developmental periods of SBPH by RSV infection, the longest when inoculated with RSV-infected SBPH in healthy rice, while the shortest when inoculated healthy SBPH in healthy rice.

  • https://doi.org/10.5656/KSAE.2015.11.0.069 인용 PDF KSCI

A Study on Religious Tendency shown in 「Gyeongseol」 by Jinam Lee Byeong-hun (진암(眞庵) 이병헌(李炳憲)의 「경설(經說)」에 나타난 종교적 성향)

  • Lee, Sang-Ha
    • (The)Study of the Eastern Classic
    • /
    • no.41
    • /
    • pp.385-406
    • /
    • 2010

  • Lee Byeong-hun was introduced to Hanjuhak when he was taught by Myeonwoo Gwak Jong-seok. It is assumed that Hanjuhak circles had a certain influence on formation of his ideas in that they had liberal tendency at that time. Lee Byeong-hun accepted Geummungyonghak developed by Gang Yu-wee of China and participated in Confucian Science Movement while excluding Confucianism. After he accepted western civilization and the ideas of Gang Yu-wee, no traces of Hanjuhak was found in his writing, but it is assumed that Hanjuhak might work as a nutritious element for his ideas. He thought that religious nature of Confucianism could be revived only when he left Neo-confucianism which changed Confucianism into a philosophy by insisting reason instead of God. So, he respected Confucius as a religious founder and left such concepts as reason and respect which were considered important in Neo-confucianism and valued disposition and faith in "Jungyong", a doctrine of the Mean. He considered Confucianism as religious and joined in religious practices such as praying and reciting scriptures. He insisted that filial piety indicates a filial son of the Heaven when interpreting the following passage: Shun (Chinese leader) is a filial duty, which is assumed that he was influenced by Christianity. He respected Confucius as the only religious founder and God as the God to make Confucianism a religion. It is believed that he considered only Confucius as a founder instead of traditional Confucian sages as religion such as Buddhism and Christianity has one founder. God he thought is related with the God in Christianity and furthermore accepted reincarnation of Buddhism which is contrary to Confucian ideas. According to "Gyeongseol" by Lee Byeong-hun, it was believed that he was engaged in religion based on a faith that Confucianism is a religion rather than he pursued Confucianism as a religion to find out a way of its survival.