• Journal of Ginseng Research
• /
• 제45권4호
• /
• pp.527-534
• /
• 2021

Background: Phenological studies are a prerequisite for accomplishing higher productivity and better crop quality in cultivated plants. However, there are no phenological studies on Panax ginseng that improve its production yield. This study aims to redefine the phenological growth stages of P. ginseng based on the existing Biologische Bundesanstalt, Bundessortenamt und Chemische Industrie (BBCH) scale and proposes a disease control reference. Methods: This study was conducted at the Korea Ginseng Corporation Experiment Station in Gyeonggi province, South Korea. Phenological observations were performed once weekly or twice monthly, based on the developmental stages. The existing BBCH scale with a three-digit code was used to redefine and update P. ginseng's phenological growth codes. Results: The phenological description is divided into eight principal growth stages: three for vegetative growth (perennating bud, aerial shoot, and root development), four for reproductive growth (reproductive organ development, flowering, fruit development, and fruit maturation), and one for senescence according to the extended BBCH scale. A total of 58 secondary growth stages were described within the eight principal growth stages. Under each secondary growth stage, four mesostages are also taken into account, which contains the distinct patterns of the phenological characteristics in ginseng varieties and the process of transplanting seedlings. A practical management program for disease control was also proposed by using the BBCH code and the phenological data proposed in this work. Conclusion: The study introduces an extended BBCH scale for the phenological research of P. ginseng.

• 한국농공학회:학술대회논문집
• /
• 한국농공학회 2005년도 학술발표논문집
• /
• pp.443-449
• /
• 2005

As sustainable development and environment-friendly efforts in large-scale development projects emerge as major interests at home and abroad, man-made wetlands and eco-park facilities have been newly planned or created when developing reclamation districts recently. In this study, based on findings from a comprehensive review of relevant studies and planning cases, the basic direction and objectives of the plan were developed. A comprehensive analysis on the status of ecological environment and demographic and social environment showed that the planned site is in a process of migrating from early stages of reclamation to middle stages. It was planned for the eco-park to function as a major base along an ecological network consisting a freshwater lake and rivers and streams flowing into the lake in Hwaong District. Through a master plan and sectoral plans were planned according to desalination levels after reclamation. Then, habitats for livings organisms were also planned. The eco-park, the planned site, is also in a process of migrating from the early stages to middles stages. By creating an eco-park that considers post-reclamation ecological environment changes, natural succession processes will be preserved, which is expected to help local ecosystems to restore their functions on their own over a relatively long period of time and enable to observe the restoration process.

• 대한간호학회지
• /
• 제35권1호
• /
• pp.27-36
• /
• 2005

Purpose: The main purpose of this study was to investigate that the stages of change in smoking cessation behavior among coronary artery disease patients for six months progressed following the stages of change suggested by the transtheoretical model. Method: Subjects for this descriptive survey were 59 coronary disease patients who were smoking or who had stopped smoking for less than six months. Result: In the baseline, the distribution of the subjects’ stages of change was as follows: pre-contemplation stage 25.4%, contemplation stage 25.4%, preparation stage 22%, and action stage 27.1%. After six months, more subjects in the contemplation(33.3%) and preparation stages(30.8%) progressed to the action stage than those of the pre-contemplation stage(0%). Eighty-one percent of the subjects in the action stage at baseline progressed to the maintenance stage. The relationship between the numbers of smoking cessation attempts for six months and stages of change at baseline was significant(p=.001). However, the relationships between self-efficacy and nicotine dependence at baseline and progression in stages of change after six months were not significant. Conclusion: Progression in the stages of change for six months among subjects corresponded to the stages of change suggested by the transtheoretical model. Hence, future development and evaluation of intervention programs should be tailored individually considering each patient's stage of change.

• 영어어문교육
• /
• 제17권1호
• /
• pp.37-52
• /
• 2011

The purposes of this study were to review developmental stages of acculturation, to establish dimensions and components of intercultural communicative competence, and to suggest teaching methods in the elementary school based on the dimensions and the components of the stages. In order to achieve these purposes, theoretical research on the nature of intercultural communicative competence and teaching methods of intercultural dimensions and components was carried out in terms of developmental stages of acculturation. The stages of acculturation have relation to cognitive domain, affective domain, and cultural awareness. In the domain of cognitive development, the models such as Cummins (1981), Wong-Fillmore (1983), and Ausubel (1968) were presented. In the affective domain of second language research, the models of Gardener and Lambert (1972), Maslow (1954), and Bloom (1974) were argued. Modifying the models of Ausubel, Cummins, Wong-Fillmore, the dimensions and components of intercultural communicative competence were established. In addition, it was suggested that cultural syllabus and lesson plan based on tourist and survivor stage should be considered.

• 가정과삶의질연구
• /
• 제25권1호
• /
• pp.15-27
• /
• 2007

This study examined the relationships between father and son through son's developmental stages focusing on the father-son communication. The researcher conducted the survey among 600 male students including the 5th grade elementary students, the 2nd grade middle school students and the 2nd grade high school students residing new areas of town Pusan. The results of this study are as follows. It showed that there are some differences in function and content of father-son communication. Also it develomental stages was revealed that there is the quality differences in father-son communication through son's develomental stages. Elementary students was higher levels of father-son communication quality than those of middle and high schools. In conclusion, the results of this study showed that the relationship between father and son is changing through son's developmental stages. If father can recognize the characteristics of the developmental stages of their son's, they would be more effectively cope their sons' development demand.

• Animal Bioscience
• /
• 제35권11호
• /
• pp.1656-1665
• /
• 2022

Objective: Water buffalo, an important domestic animal in tropical and subtropical regions, play an important role in agricultural economy. It is an important source for milk, meat, horns, skin, and draft power, especially its rich milk that is the great source of cream, butter, yogurt, and many cheeses. In recent years, long noncoding RNAs (lncRNAs) have been reported to play pivotal roles in many biological processes. Previous studies for the mammary gland development of water buffalo mainly focus on protein coding genes. However, lncRNAs of water buffalo remain poorly understood, and the regulation relationship between mammary gland development/milk production traits and lncRNA expression is also unclear. Methods: Here, we sequenced 22 samples of the milk somatic cells from three lactation stages and integrated the current annotation and identified 7,962 lncRNA genes. Results: By comparing the lncRNA genes of the water buffalo in the early, peak, and late different lactation stages, we found that lncRNA gene lnc-bbug14207 displayed significantly different expression between early and late lactation stages. And lnc-bbug14207 may regulate neighboring milk fat globule-EGF factor 8 (MFG-E8) and hyaluronan and proteoglycan link protein 3 (HAPLN3) protein coding genes, which are vital for mammary gland development. Conclusion: This study provides the first genome-wide identification of water buffalo lncRNAs and unveils the potential lncRNAs that impact mammary gland development.

• Mycobiology
• /
• 제37권3호
• /
• pp.230-237
• /
• 2009

The oyster mushroom (Pleurotus ostreatus) is one of the most important edible mushrooms worldwide. The mechanism of P. ostreatus fruiting body development has been of interest both for the basic understanding of the phenotypic change of the mycelium-fruiting body and to improve breeding of the mushrooms. Based on our previous publication of P. ostreatus expressed sequence tag database, 1,528 unigene clones were used in macroarray analysis of mycelium, fruiting body and basidiospore developmental stages of P. ostreatus. Gene expression profile databases generated by evaluating expression levels showed that 33, 10, and 94 genes were abundantly expressed in mycelium, fruiting body and basidiospore developmental stages, respectively. Among them, the genes specifically expressed in the fruiting body stage were further analyzed by reverse transcription-polymerase chain reaction and Northern blot to investigate temporal and spatial expression patterns. These results provide useful information for future studies of edible mushroom development.

• Fisheries and Aquatic Sciences
• /
• 제1권1호
• /
• pp.72-78
• /
• 1998

The larvae of Balanus improvisus were reared in the laboratory from hatching to cyprid. Larval development consists of six nauplius stages and a cyprid. Morphological features of all the nauplius stages are illustrated and described.

• Animal Systematics, Evolution and Diversity
• /
• 제18권1호
• /
• pp.35-48
• /
• 2002

유생의 형태발생이 미발표된 별따개비속의 하구별따개비는 조간대의 암석 기저부에 부탁하거나 가리비의 껍질에 부착하여 생활하는 따개비이다. 유생을 실험실에서 최초로 사육하여 유생발생단계를 형태적으로 도시 및 기재하였다. 노플리우스에서 어린 성체 직전까지 유생사육 기간은 20$\pm$0.5$^{\circ}C$에서 3주일이 소요되었다. 각 유생단계별로 유생의 크기 및 강모식을 설명하고 하구별따개비 유생의 유생기별 전장, 갑폭, 촉각 내지에 위치한 4적의 강모형태, 상순, 4-6기의 노플리우스 두순극의 형태 및 제 1촉각, 제 2촉각, 대악의 강모식이 본 따개비유생의 동정에 유용함을 설명하였다 위에서 언급한 형태학적 특징 뿐만 아니라 복부돌기에 있는 미세가슴가시의 형태와 미세가시수도 따개비유생의 종내 및 종간 동정에 매우 유용함을 구명하였다.

• 한국작물학회:학술대회논문집
• /
• 한국작물학회 1995년도 춘계 학술대회지
• /
• pp.38-39
• /
• 1995