• Title/Summary/Keyword: variety selection

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A New Spray Chrysanthemum Cultivar, 'Yellow Candy', with Vigorous, Pompon Flower Type and Yellow Petals for Cut Flowers

  • Lim, Jin Hee;Shin, Hak Ki;Park, Sang Kun;Cho, Hae Ryong;Rhee, Hye Kyung;Kim, Mi Seon;Joung, Hyang Young
    • FLOWER RESEARCH JOURNAL
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    • v.19 no.3
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    • pp.181-186
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    • 2011
  • A new spray chrysanthemum cultivar 'Yellow Candy' was released by National Institute of Horticultural & Herbal Science (NIHHS), Rural Development Administration (RDA), in 2008. The cross was made in 2003 between 'Restone' and 'Lollipop'. Trials were conducted from 2006 to 2008 for the evaluation and selection of this cultivar, including shading cultures in summer and retarding cultures in spring. The natural flowering time of 'Yellow Candy' is late October, but year-round flowering is possible by photoperiodic control. It has pompon flower type with yellow petals and yellowish red flower center. The growth of plant is very vigorous. The diameter of flower is 4.3 cm. Number of flowers per stem and petals per flower are 8 and 184, respectively. Days to flowering under the short day treatment is about 58.5 and its vase life is 18.5 days in autumn season. 'Yellow Candy' was applied as No. 2009-177 on Feb. 18, 2009 for variety protection and the plant variety protection rights have been registered as No. 3247 on August 3, 2010 at the Korea Seed and Variety Service.

A Dark Pink Freesia 'Happy Birthday' with Semi-Double Multi-flowering (진분홍색 반겹꽃 다화성 프리지아 신품종 '해피버스데이' 육성)

  • Cho, Hae-Ryong;Rhee, Hye-Kyung;Kim, Mi-Seon;Park, Sang-Kun;Shin, Hak-Ki;Joung, Hyang-Young;Lim, Jin-Hee
    • Korean Journal of Breeding Science
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    • v.43 no.3
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    • pp.210-213
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    • 2011
  • A dark pink semi-double freesia (Freesia hybrida Hort.) 'Happy Birthday' was bred from a cross between 'Pink Jewel', F1 progeny of 'Michelle' and 'Rossini' as a female and 'White Lace' as a male parent. Test for the growth vigor and flowering characteristic were conducted from 2002 to 2007. A new variety 'Happy Birthday' has semi-double flower type with dark pink color (RHS color chart #RP66C). It has multiple flowers, distinctive flower shape, upright leaves and also stalks. The average yield of this variety 'Happy Birthday' counted over 6.7 stems per plant per season in the standard greenhouse cultivation method. It has also good production of cormlets, vigorous growth. A new variety 'Happy Birthday' is suitable for the greenhouse conditions during winter season in Korea.

Breeding of 'Greenbear' for New Cultivar of Gomchwi with Disease Resistant and High Yield (내병 다수성 곰취 신품종 '그린베어' 육성)

  • Suh, Jong Taek;Yoo, Dong Lim;Kim, Ki Deog;Lee, Jong Nam;Sohn, Hwang Bae;Nam, Jeong Hwoan;Kim, Su Jeong;Hong, Su Young;Kim, Yul Ho
    • Korean Journal of Plant Resources
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    • v.34 no.4
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    • pp.339-345
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    • 2021
  • 'Gondalbi' (Ligularia stenocephala (Maxim.) Matsum. & Koidz.) is the most cultivated Gomchwi species because of higher yield and low in aromatic flavor and bitter taste, But 'Gondalbi' is susceptible to powdery mildew disease and leaf shriveling after harvest in Summer. To improve powdery mildew disease resistance and post-harvest leaf shriveling problem in 'Gondalbi', 'Handeari-gomchwi' resistant to powdery mildew disease and having higher yield potential used as a paternal trait donor. Powdery mildew disease resistance and post-harvest leaf shriveling as well as agronomic performance of a new variety, 'Greenbear' were tested under field and green house conditions in Pyungchang, Korea from 2007 to 2016. Expression of both maternal and paternal characteristics in 'Greenbear' including purple colored petiole ears, glossy leaf and paternal, petiole trichome, absent at the back of a leaf were confirmed. Plant size and flowering time of 'Greenbear' were similar to check line, 'Gommany', while leaf number per plant and yield were higher in 'Greenbear'. 'Greenbear' has thinner leaves (0.66mm) compared to 'Gommany (0.69 mm)', and hardness appeared slightly higher in 'Greenbear(25.1 kg/cm2)'. The resistance to powdery mildew disease of the 'Greenbear' variety was slightly lower than that of the 'Gommany' variety, but somewhat showed high resistance.

Growth Characteristics and Yield of "Baeck Ji 1" a New High Variety of Angelica dahurica (白芷 新品種 "白芷 1號" 의 主要特性 및 收量性)

  • 정상환
    • Korean Journal of Plant Resources
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    • v.10 no.1
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    • pp.100-104
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    • 1997
  • A new baekji(Angelica dahurica Bentham et Hooker) variety, Baekji l, was developed through a pure line selection at the Gyeongbug Provincial RDA during the period of 1990 to 1995. The variety was characterized to have high plant height. Long root length and large root diameter as compared with a check varicty of Bonghwa baekji but emergence date, flowering date and leaf number of Baekji l was similar to that of the check variety, and it was also more tolerant to nematode and heat stress. Peeled root color of Backji l was yellowbrown but number of the lateral root of the variety was greater. The dried-root yield of Baekji l in yield trial, regional adaptation trial and farmer's field trial was always $21\sim31%$ higher than that of the check variety.

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A New Early-Heading and High-Yielding Forage Rye Variety, 'Dagreen' (조숙 다수성 청예 조사료용 호밀 신품종 '다그린')

  • Cheong, Young-Keun;Heo, Hwa-Young;Park, Hyoung-Ho;Hwang, Jong-Jin;Han, Ouk-Kyu;Park, Tae-Il;Park, Ki-Hun;Choi, Jae-Seong;Seo, Jae-Hwan;Kim, Dae-Wook;Kim, Ki-Jong;Kim, Jung-Gon
    • Korean Journal of Breeding Science
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    • v.42 no.6
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    • pp.600-605
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    • 2010
  • 'Dagreen' (Scale cereal L.), a new rye variety was developed from the open pollination among 10 rye lines at the National Institute of Crop Science in 1995 and mass selection were made at National Institute of Crop Science from 1996 to 1999. Recurrent selections were made at Dept. Rice and Winter Cereal Crop, NICS, RDA from 2000 to 2006. This new variety has erect plant type with medium size pale green leaves. The number of spike per $m^2$ was 713 and the plant height was 103cm. The heading date of 'Dagreen' was April 24 which was 7 days earlier than that of "Koolgrazer". It was adaptable for forage use at an early stage as a whole crop. Lodging resistance was higher than that of check variety 'Koolgrazer'. The chemical components and quality of forage showed 10.2 % crude protein, 36.6 % ADF, 62.4 % NDF and 59.9 % TDN. 'Dagreen' showed high resistance to powdery mildew and leaf rust than those of check variety in the field condition. The average dry matter (7,010kg $ha^{-1}$) of 'Dagreen' harvested at April 28 were 6 % higher than 'Koolgrazer'. This variety is recommended for all of the rye cultivation area in Korea.

Evaluation of Perceived Importance and Satisfaction of Foodservice Selection Attributes in University Students in Beijing, China (중국 북경지역 대학 급식소 고객의 급식선택속성에 대한 중요도와 만족도 평가)

  • Fan, Ming-Ming;Bae, Hyun-Joo
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.45 no.4
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    • pp.585-592
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    • 2016
  • This study was conducted to analyze the gap between importance and satisfaction of university foodservice attributes as well as to assess customer satisfaction with university foodservice establishments. All statistical analyses were conducted using the SPSS package program (ver. 20.0) for t-test, ANOVA, and Importance-Performance Analysis (IPA). A total of 619 valid responses were used for the data analysis. The results of this study are as follows: the composition of respondents was 53.5% males and 46.5% females. Exactly 85.5% of respondents ate lunch at least five times a week at the on-campus foodservice. The favorite lunch menus of Chinese university students were Chinese food (91.8%), followed by Western food (3.5%), Korean food (2.2%), and Japanese food (1.5%). According to the results of IPA, foodservice selection attributes that were priorities for improvement were food taste, food freshness, menu variety, waiting time for meal, and toilet cleanliness. In addition, five satisfaction factors were extracted by exploratory factor analysis. According to the results of one-way ANOVA, 'physical environment' and 'service quality' factors showed significant differences according to the students' grades and the frequency of eating lunch at on-campus foodservice. On the other hand, 'food quality and menu' and 'convenience and price' factors showed significant differences according to meal cost. In conclusion, in order to enhance customer satisfaction of on-campus foodservice, foodservice managers should offer a varied menu at reasonable prices and improve food quality.

Relationship of SOC Strategy to Aging Attitude among College Students Taking Courses Related to Lifelong Educator (평생교육사 관련 교과목 수강 대학생들의 SOC 전략과 노화에 대한 태도와의 관계)

  • Ha, Kyoung-Poon;Joo, Min-Kyoung;Song, Sun-Hee
    • The Journal of the Korea Contents Association
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    • v.13 no.12
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    • pp.758-770
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    • 2013
  • The purpose of this study was to examine the influence of the SOC strategies of college students taking courses related to lifelong educator on their attitude toward the elderly and successful aging in an effort to provide information on how to teach students to take a favorable attitude toward the elderly and acquire knowledge on the right aging. The major findings of the study were as follows: The male students made more use of an arbitrary selection strategy than the female students, and a loss-based selection strategy was more prevailing among the female students. There were no differences in attitude toward the elderly and awareness of successful aging according to gender and the presence or absence of religion. Aging attitude was under the statistically significant positive influence of a compensation strategy, and a loss-based selection strategy had a statistically significant positive impact on awareness of successful aging. Given the findings of the study, a wide variety of programs and contents that are related to lifelong educator and can be of use for college students who make a preparation for successful aging should be developed and provided in consideration of the variables that affect attitude toward the elderly and successful aging.

A Comparative Analysis of Customer Choice and Satisfaction Factors among Three Types of Coffee Shops (커피 전문점 선택요인과 만족도에 관한 비교 연구)

  • Lee, Yang-Kyu;Park, Sang-Youn;Hwang, Il-Young
    • Journal of Distribution Science
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    • v.12 no.2
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    • pp.49-57
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    • 2014
  • Purpose - Theorists and researchers in the area of customer satisfaction generally agree that product satisfaction intervenes between expectancy disconfirmation and various post-purchase cognitive states including attitude and behavioral intention. Studies in a variety of settings have supported the effect of expectation and its disconfirmation on satisfaction, but only a small number of studies address the cognitive consequences of satisfaction decisions and none report data on choice processes such as brand selection. This study examines the influence of satisfaction and its determinants on behavioral intention and product preference in eight coffee shops across the country. Generally it was found in both overall and summed attribute analyses that satisfaction was a function of expectation and disconfirmation, that intention was a function of satisfaction, and that preference was influenced by satisfaction and disconfirmation, the latter having the greater effect. Research design, data, and methodology - The main objective of this study was to assess the dimensions of consumer selection and satisfaction in choosing a coffee shop. In order to achieve this objective, a study of coffee shops across the country was conducted. This study comprised in-depth questionnaires distributed to coffee shop customers. A survey was conducted from September 1, 2011 to September 30, 2011, involving franchise coffee shop, independently owned coffee shop, and roastery coffee shop customers. Results - Hypothesis 1-1, which states that coffee shop choice attributes differ based on the type of coffee shop, is accepted. It has a significance level of 0.05, according to choosing properties of coffee shop by convenience of transportation, varieties of beans, residence of the owner (manager), information, and relationships. Hypothesis 1-2, which states that satisfaction with the choice factor differs depending on the type of coffee shops, is accepted. The P-values for cleanliness and varieties of beans were 0.04 and 0.00, respectively, and have a significance level of 0.05, according to the satisfaction with the chosen coffee shop. Hypothesis 2-1, which states that the importance of the choice attributes in coffee shop selections differs based on the demographic characteristics of the customers, is accepted. According to the t-test result, convenience of parking and residence of the owner (manager) are significant. Hypothesis 2-2, which states that satisfaction with the choice factor will differ depending of the type of coffee shop, is accepted. According to the t-test result, convenience of parking and residence of the owner (manager) are significant. Conclusions - This study has shown that intention to revisit a certain shop is most likely correlated to satisfaction in all cases. In order to offer subsequent developments for coffee shops, this study also identifies relations between customer satisfaction and selection by finding significant factors. In order to maximize customers' satisfaction, coffee shops should analyze and satisfy customers' needs and wants in terms of coffee service. While the findings do not generalize beyond the mall sampling procedure used here, we have hopefully identified a close approximation of the process of satisfaction decisions used by consumers generally.

Path Selection Strategies and Individual Differences in a Navigation Task (어디에 표지판을 세울 것인가? 길 안내 과제를 통한 개인의 공간인식 및 문제해결에 대한 연구)

  • Lee, Jong-Won;Harm, Kyung-Rim;Yoon, Sae-Ra;Baek, Young-Sun
    • Journal of the Korean Geographical Society
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    • v.45 no.1
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    • pp.144-164
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    • 2010
  • This study aims to reveal path selection strategies and individual differences in a navigation task. Two experiments were presented that studied human route planning performance as well as the cognitive strategies and processes involved. For the outdoor task, university students were asked to select a route based on the instruction, i.e. to find the best route from the campus main gate to the Education Building for conference visitors by locating eight signposts. Results indicate (1) that locations of signposts were selected preferably at decision points where the traveler needs to make a choice and starting/ending points of the navigation task and (2) a variety of route planning strategies considering efficiency goal (e.g., the shortest path), environmental characteristics (e.g., fewest turns), and aesthetic purpose (e.g., most scenic) were used. It is notable that some participants took into account more than one path by locating one or two signposts on an alternative route while others preferred a linear route connecting signposts between the start point and the destination. Prior to the main experiment, the same participants were asked to complete the same task inside the classroom to investigate changes in strategies between two tasks. Participants often tend to place signposts at more regular intervals for the indoor navigation task than the same task conducted outside.

Efficient Selection Method for Drought Tolerant Plants Using Osmotic Agents

  • Park, Dong-Jin;Im, Hyeon-Jeong;Jeong, Mi-Jin;Song, Hyeon-Jin;Kim, Hak-Gon;Suh, Gang-Uk;Ghimire, Balkrishna;Choi, Myung-Suk
    • Journal of Forest and Environmental Science
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    • v.34 no.3
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    • pp.224-234
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    • 2018
  • An efficient method to select drought tolerant Korean native plants using in vitro culture system was established in this study. While the plant growths and root inductions of each plant were proportionately affected by concentrations of mannitol on in vitro culturing seven plant species to test tolerance to osmotic stress, growth index (GI) and number of root induction of Chrysanthemi zawadskii var. latilobum and Dianthus chinensis var. semperflorens plantlets were higher than the others in 125mM mannitol. In test with polyethylene glycol (PEG), plantlets of C. zawadskii var. latilobum and D. chinensis var. semperflorens showed higher GI and number of root induction than the others in 33.3mM. On testing whether the well grown plants under osmotic stress are tolerant to virtual drought stress, there were significant differences in the withering rates of C. zawadskii var. latilobum and D. chinensis and those of were Aster yomena and Centaurea cyanus after 12 days without watering. It was found that significantly lower stomata numbers were shown in both drought tolerant plants than the sensitive plants. Averages of the stomata circumferences and the stomata area in the plantlets of the tolerant species were larger than those of the sensitive plants D. chinensis var. semperflorens showed the lowest transpiration level per unit area. The highest stomatal area per unit area was found in C. zawadskii, followed by D. chinensis var. semperflorens, Aster yomena and C. cyanus. In conclusion, C. zawadskii var. latilobum and D. chinensis var. semperflorens were more tolerant to drought than other two species. Furthermore in vitro selection was successfully used to screen drought tolerance species of native plant species.