• 제목/요약/키워드: nursery method

검색결과 162건 처리시간 0.032초

Evaluation of Sequential Planting Method for Screening of Durable Resistance against Rice Blast in Rice Breeding Program

  • Goh, Jaeduk;Kim, Byoung-Ryun;Shin, Dong Bum;Kang, In Jeong;Lee, Bong Choon;Kang, Hang-Won;Han, Seong-Sook
    • 식물병연구
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    • 제21권1호
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    • pp.20-23
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    • 2015
  • A sequential planting method was developed to screen rice plants with durable resistance against rice blast in a short time, and applied for several years in Korean rice breeding program. In this study, we showed the advantages of a sequential planting method compared to other pathogenicity tests. The correlation analysis among three pathogenicity tests and other factors demonstrated that durable resistance depended on the average of diseased leaf area and the number of compatible pathogens. Significant correlations were found in the nursery test but not in the field test result. In addition, we traced changes in the pathogen population during sequential planting stages through re-isolation of the pathogen. The portion of compatible pathogens was increased during sequential planting. Through this study, we provide an effective sequential planting method and direction of durable resistance in a breeding program.

벼농사 복토직파기 개발 연구 (Development of a Direct Seeder with Soil Application for a Stable Direct Seeding in Rice Cultivation)

  • 박광호;이재철;윤석철
    • 현장농수산연구지
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    • 제3권1호
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    • pp.30-47
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    • 2001
  • This research was performed to develope a stable direct seeding method in rice cultivation using by a direct seeder with soil application. A principle of this methodology was introduced from seeding nursery system of machine transplanting enable to increase high seeding establishment direct seeding method with soil application was high of 89-95% while that of water seeding was 68%. During seeding growth plant height was ralatively small but seeding health was high. A total soil consumption of this methodology was 145kg/10a in dirll seeding and 26kg/10a in hill seeding respectively, there was 100% erected in direct seeding with soil application while water seeding was 45% in erected seeding stand. In direct seeding method with soil application total carbohydrate content was higher than that of water seeding. This machine was manufactured to attach and/or detach to a machine transplanter with riding type and machine cultivator with multipurpose. In the farmer's demonstrated rice field this method was well performed like machine transplanting in terms of rice growth and development. There was highly cost reduction for rice production like other direct seeding methods.

남부지역에서의 양파 육묘실태 (Raising Seeding Status of Onion under Different District in Southern Part of Korea)

  • 정동희
    • 한국자원식물학회지
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    • 제9권2호
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    • pp.113-119
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    • 1996
  • This study inverstigates growing seedling of onion for 91 farmhouses at Muan, Hampyeong and Sinan which are major areas of production from Jan. to Apr., 1994 to enhance the research effect of onion and then the following results are obtained. Over 60% of the farmhouses have cultured onion continuously over 11years. Early mature variety cultured is over 9 varieties and among them Kinkyu variety is cultured most frequently. Late mature variety is over 13 and Changyongdaego, Bonganwhang and Chunjudaego varieties are cultured most. Most of the farmhouses used seeds less than 6 dl at small area less than $40m^2$ and especially in the case of early variety ,they purchased it at seed stores with 15,000-20,000 won/dl and sowed them with broadcasting method. Amount of fertilizer level of onion seed is ranged from nonfertilizer level to $16.8g/m^ and most of the farmhouses employ molding after seeding with straw and compost and they did not use thinning. Irrigation is performed by 1-4 times before sprouting of onion seed and most of the farmhouses transplant long nursery plant over 46 days hand weeding is used.

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Isolation and Identification of Superior Bifidobacterium strains from Korean Feces

  • 김지연;이윤종;최수임;허태련
    • 한국생물공학회:학술대회논문집
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    • 한국생물공학회 2001년도 추계학술발표대회
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    • pp.422-425
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    • 2001
  • For isolating and identifying Bifidobacterium spp. originating from Korea, feces were sampled from healthy Korean infants nursery school and postpartum care center. Through the use of gram staining and microscopic examination for cell morphology, 87 bacterial strains presumed to be the Bifidobacterium strains were isolated from 59 Koreans. To identify the Bifidobacterium strains at the genus level, these bacteria were then analyzed using the TLC method. As a result, 29 of the isolated strains were confirmed as members of the genus Bifidobacterium. 29 Bifidobacterium strains were tested acid, bile salts and oxygen tolerance and investigated antioxidative effect specially. And determined the superiority of 5 strains out of 29 Bifidobacterium strains. Finally, the selected bifidobacterium was identified with using designed 16S-ITS rDNA primer.

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PC 통신에 나타난 어머니의 유아 양육에 관한 내용분석 (Content analysis of mother's child rearing on PC communication)

  • 김영주
    • 대한가정학회지
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    • 제41권2호
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    • pp.187-198
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    • 2003
  • The purpose of this study was to explore the ideas about childrearing represented on the cyber space. The method used for this study is the content analysis and the data are articles about child rearing on the Hitel bulletin board during 1 year. It was found that then articles dealt with problems of practices in the teaching, nurturing, interfacing between home and social institutions, and disciplining. Especially these articles put great emphasis on teaching. For example, there are many articles about children's cognitive development. And there are many articles about nurturing. Especially child's emotional care. Many articles about interfacing between home and social institutions are appeared. In early childhood, many child go to nursery center. So from these results, we might conclude that many mothers gave their children emotional care. And they didn't teach their children directly. Instead they bought many educational instrument.

심리운동이 학령 전 아동의 자아 개념, 사회성 및 공격성에 미치는 효과 (The Effects of Psychomotorik on Self Concept, Sociability and Aggression in Preschoolers)

  • 최영실;이은자
    • Child Health Nursing Research
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    • 제14권4호
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    • pp.379-387
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    • 2008
  • Purpose: This study was conducted to investigate the effects of a psychomotorik program on the self concept, sociability and aggression in preschoolers. Method: The research design was a nonequivalent control group pretest-posttest design. There were 34 subjects in the experimental group and 34 in control group among 68 preschoolers in a nursery in the city of G. The experimental group received an 12 weeks psychomotorik. The out come variables were measured before and after the program. Collected data were analyzed by Fisher's exact test, t-test, $X^2$. test, repeated measures ANOVA & ANCOVA using the SPSS 15.0 program. Result: After psychomotorik program, self concept, sociability were increased and aggression decreased in the experimental group. Conclusion: Psychomotorik program was effective in increasing self concept and sociability and decreasing aggression. The program should be effective in psychological development of preshoolers.

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휴대용 자동청력진단기기 개발 (Development of a portable automatic hearing screener)

  • 노형욱;이탁형;김종욱;양동인;차은종;김덕원
    • 대한전자공학회:학술대회논문집
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    • 대한전자공학회 2009년도 정보 및 제어 심포지움 논문집
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    • pp.129-131
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    • 2009
  • Hearing loss is one of the most common birth defects among infants. Most hearing-impaired children are not diagnosed until one to three years of age, which is too late to treat for normal speech and language development. If a hearing impairment is identified and treated in its early stage, child's speech and language skills could be comparable to his or her normal-hearing peers. In this study, we applied the 'Fsp' method to distinguish between normal and impaired hearing. We have developed a battery-operated portable A - ABR(automated auditory brain stem response) system that automatically detects hearing impairment for neonates or infants in a nursery room, as well as in a sound-proof room. We partially validated the accuracy of the system in five normal-hearing adults.

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코하우징(Cohousing) 특성에 대한 사례조사 연구 (A Case Study on the Characteristics of Cohousing)

  • 조인숙;신화경;이재준
    • 한국주거학회:학술대회논문집
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    • 한국주거학회 2003년도 정기총회 및 추계학술대회
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    • pp.159-164
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    • 2003
  • Cohousing is communities balance the traditional advantages of home ownership with the benefits of shared common facilities and ongoing connections with your neighbors. It is characterized by private dwellings with their own kitchen living-dining room etc, but also extensive common facilities. These cooperative neighborhoods are one of the most promising solutions to many of today's most challenging social and environmental concerns. The purpose of this study is suggest planning direction to cohousing as alternative house. It focuses on the planning method through case study. The result of the study are summarized as follow ; Size of cohousing is 20${\sim}$50 family. Location of cohousing is urban. Type of house is detached house+row house. Size per family is 0${\sim}$15m$^2$. Common house makes up kitchen, dining-room living-room, guest room nursery room and so on.

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조경배치 설계에 관한 연구(1) (Studies on Landscape Planting Design( I ) -With SpeciAl refErence to the Selection of til:es in the Landscape -)

  • 심우경
    • 한국조경학회지
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    • 제15권3호
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    • pp.1-10
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    • 1988
  • The initial selection of plants is the decisive step in the ultimate success of any landscape planting. This study intended to establish a reasonable selecting criteria of tree in the landscape through the holistic consideration of aesthetic, functional, cultural, operational and ecological viewpoints. The matrices of evaluating the fitness of tree were modulated to 10 categories ; availability from the established nursery. aesthetic value, indigenous to the locality, maintenance, soil fertility requirement, environmental tolerances. growth rate. wild-life food production. use of plants in design and user's likes. This 10 categories were weighted to their fitness as high(10 points), medium(8 points) and low(5points). Thus suitable plants were identified which got 70 more points from total 100 points. Such a method was believed as a rational process to get trust from client. to persuade uneducated client and to be free from designer's prejudice through a case study. But it is important to landscape designer to recognize the relationship between the rationality which prevails throughout the modern technical world and the intuitive aspects of design that are essential for developing creative solutions to encourage creativity as well as analytical responsibility.

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