• 한국자원식물학회지
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• 제1권1호
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• pp.72-79
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• 1988

This experiment was conducted to breed the Boxthorn varieties with resistance to Anthracnose, good quality and high yielding potential in 1984 to 1986(3 years).The character of "Yu seong 1" with resistance to Anthracnose and "Yu seong 2"with good quality and high yielding potential are fellows;1, The plant type of "Yu seong 1" was semi-elect type but became to electtype after 60C" rediation and yield was decreased because of the number of flowers.2. The yield of "Yu seong 2" was the highest of all varieties.3. The quality(Extract and Betain contents) of "Yu seong 2" was the best ofall varieties and visible character was good.The results of this experinent showed that "Yu seong 1" should be promisinglines in south area because of resistance Anthracnose and "Yu seong 2" should bepromising lines in north area.hracnose and "Yu seong 2" should bepromising lines in north area.orth area.

• 한국작물학회:학술대회논문집
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• 한국작물학회 1999년도 추계 학술대회지
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• pp.80-101
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• 1999

Self-sufficiency ratio of food crops in Korea is estimated under $20{\%}$ in 2010 because total food consumption including feed will be increased. but food grain production will be decreased. It is necessary to maintain the optimum level of food self-sufficiency rate to secure national food demand/supply balance and non-trade and multiple function of agriculture in Korea. It will be possible to produce more food grains having the acceptable quality if the appropriate policy and cropping techniques are developed and practised in future. Breeding for high yielding varieties should be the first target to raise the production potential of food crops . Number of varieties developed during last 30 years is counted as 353 in food crops. New varieties developed in 1990s showed the higher yield potential and the improved agronomic characteristics compared with 1970s and 1980s varieties. But number of varieties planted on the farmer's field over $5{\%}$ of national planting area is less than one third of total varieties developed Breeding efforts to maintain planting area of main food crops should be focussed on consumer's demand and farmer's need. They are the best quality variety in each field of crop utilization, the newly designed variety adapting to changes of natural, rural and cropping environment, and the higher yielding variety. It is also needed to develop new quality crop varieties for inducing more consumption of crop grain produced in Korea for direct food or processing. Development of barley varieties for animal feed. high income soybean varieties, high quality wheat variety. and super yielding rice and barley varieties are also needed to keep or maximize national food production potential. In order to establish the appropriate cropping technique for domestic food security, the strong and continuous interest and financial support on crop breeding are required, and the inter-disciplinary and inter-institutionary researches should be strengthened for successful crop breeding.

• 한국잠사학회:학술대회논문집
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• 한국잠사학회 2003년도 International Symposium of Silkworm/Insect Biotechnology and Annual Meeting of Korea Society of Sericultural Science
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• pp.104-105
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• 2003

In order to breed high yielding good quality leaves mulberry cultivar, which is essential for silkworm rearing, the characteristics of newly bred mulberry strain were surveyed. Materials and Methods: materials -Mulberry Jamgsang 123 which is registered as newly bred mulbery cultivar Suilppong -Sikworm Baegogjam nd Daesungjam were reared for practical leaves quality examination in spring and autumn, respectively by feeding Jamsang 123 leaves (omitted)

• 한국지역사회생활과학회지
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• 제24권2호
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• pp.221-231
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• 2013

This study was carried out to investigate the quality characteristics of Jeung-pyun using high yielding type rice (Dasan, Keunseom) and processing type rice (Daerip, Seolgang, Yangjo) for applying a new processes in rice food industry. The weight, volume, specific volume and expansion of Jeung-pyun were the highest in Dasan. The shapes of cross section showed that the air cell of Jeung-pyun made from Dasan and Daerip were smaller and more regular than Keunseom, Seolgang, and Yangjo. The Jeung-pyun of Daerip was the highest in L value, springiness, cohesiveness and chewiness, Keunseom was the highest in a value and hardness; Yangjo was the highest in b value, adhesiveness and gumminess. Jeung-pyun of Dasan was shown, through sensory evaluation, to be the highest in flavor, appearance and overall preference. The Jeung-pyun of Daerip was the highest in color and taste preference, while Seolgang was the highest in texture preference.

• 한국육종학회지
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• 제42권3호
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• pp.207-211
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• 2010

'Taedong Valley' is a high yielding and processing potato cultivar, which is a clonal selection resulting from a cross between 'W870' and 'A88431-1'. It is a medium maturating cultivar with medium plant height and light green foliage. 'Taedong Valley' has profuse flowering habit and light purple flowers. Tubers are smooth, round, and with yellow skin, light yellow flesh, medium eye depth. Tubers have medium dormancy and good keeping quality. 'Taedong Valley' has stable yield under wide range of climatic conditions. It is resistant to common scab and potato virus Y, but moderately susceptible to late blight. It is also resistant to most of the disorders, particularly dehiscence, hollow heart and internal brown spots. This cultivar has high level of tuber uniformity and capable of yielding 43.6 t/ha which is about 9.0% higher than the control potato cultivar 'Atlantic' under optimum agronomical practices.

• 한국초지조사료학회지
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• 제17권2호
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• pp.101-109
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• 1997

Nine oat(Avena sativa L.) cultivars have been recommended as the govemment recommended forage cultivars since 1984, however, their forage performance and quality have mostly been tested at two locations, such as Suweon in the Middle Northwestem Coast Region and Sunghwan in the Middle Southwestern Coast Region. Therefore, the objective of this experiment was to retest the forage performance and quality of six government recommended oat cultivars at five scattered locations, such as Icheon, Suweon, Sunghwan, Keongsan and Kwangju fom 1992 to 1994 with the intention of improving recommendations to dairy farmers. Among the oat cultivars tested, "West" was the highest yielding cultivar at all locations in 1992-94, but the lowest yielding cultivars varied by location and year. At both Icheon and Suweon, "Cayuse", "Magnum" and "Foothill", at Sunghwan, "Cayuse" , "Ensiler" and "Foothill", at Keongsan, "Magnum", "Cayuse" and "Swan", and at Kwangju, "Cayuse", "Magnum" and "Cayuse", were the lowest yielding cultivars in 1993, 1994 and 1995, respectively. At all locations in 1992-94, "West" and "Swan" were the most advanced in growth stage, but "Cayuse", "Foothill", "Magnum" and "Ensiler" were the latest developing cultivars among the oats. Differences among the oat cultivars for the three-year mean NDF, ADF and IVDMD were small and inconsistent, but forage quality of the oats was generally lowest in the early developing cultivars and highest in the late developing cultivars. The govemment recommended oat cultivars tested were generally well adapted across the country, however, in forage production situations in the fall where high yield is more important, early maturing oat cultivars might be preferable to late cultivars because they have higher forage yield earlier in the fall.ction situations in the fall where high yield is more important, early maturing oat cultivars might be preferable to late cultivars because they have higher forage yield earlier in the fall.

• 한국식품저장유통학회:학술대회논문집
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• 한국식품저장유통학회 2002년도 창립 10주년 기념 국제학술심포지움
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• pp.46-53
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• 2002

The self-sufficiency of rice production was attained in 1975 through development of Tongil-type high-yielding rices and rapid dissemination to farmers and innovation of cultivation technologies, so-called "green revolution" in Korea. It can be continued during the last twenty seven years except some years with meterological disasters. The national average of milled rice yield per ha was only 3.1 ton at the first half of 1960′s, but it drastically increased to 5.0 ton at the 2nd half of 1990′s. Also, the rice quality was highly improved through the continuous varietal improvement of high-yielding japonica rice cultivars. The amounts of rice stock will go beyond about 1.9 million tons in 2002 due to the recent continuos bumper rice crop and relatively rapid reducing in rice consumption. There are so many rice brands over 1,200 in Korea, but most of rice commodities are not enough controlled in terms of marketing quality and palatability of cooked rice. Although the most rice brands are not properly controlled in quality management, its average level of grain quality is largely improved through the continuously increased diffusion of newly-developed high-quality rice cultivars since 1991. The rapid construction of rice processing complex(RPC) since 1992 also accelerates the production and distribution of brand rices. Especially, about half of distribution amounts are covered by brand rice commodities of the agricultural cooperative associations. The rice is mainly consumed by the type of cooked rice. The amounts of rice consumption for food processing is only below 4% of total rice consumption. The processed rice foods is mainly consumed as various processed cooked rices, rice cakes, and rice wines.

• 한국작물학회:학술대회논문집
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• 한국작물학회 1990년도 추계 학술대회지
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• pp.54-55
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• 1990

• ALGAE
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• 제36권4호
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• pp.327-332
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• 2021

Raw material of gelidioid red algae yielding high-quality agar has been in short supply due to overharvesting, but in situ farming of gelidioids has not been practical due to their slow growth. To produce vegetative seedstock of a cosmopolitan species, Pterocladiella capillacea, we investigated the number and length of regenerated branches arising from sectioned fragments during 3 weeks of laboratory culture at 10, 15, 20, and 25℃. All sectioned fragments formed axis-like branches mostly from the upper cut edge and stolon-like branches mostly from the lower cut edge, showing a high capacity of regeneration and intrinsic bipolarity. At 20℃, the number of regenerated branches increased to 2.74 ± 1.29 on the upper cut edge and 4.26 ± 2.66 on the lower cut edge. Our study reveals that the use of fragments bearing regenerated branches as seedstock can be a simple method to initiate fast propagation for mass cultivation in the sea or outdoor tank.

• 한국식품영양학회지
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• 제21권4호
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• pp.553-561
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• 2008

This study attempted to investigate the effect of foodservice quality perception on residence satisfaction of silver town residents. Through an extensive literature review, the questionnaire was developed and distributed to senior residents in 'A' silver town located in Gyeonggi-Do. Out of 254 questionnaires administered, a total of 212 completed questionnaires were returned, yielding a response rate of 83.5%. The results showed that there was a meaningful correlation between perception on foodservice quality and residence satisfaction. Among foodservice quality factors, reliability and comfort were the most important factors affecting residence satisfaction. Considering the effect of reliability and comfort factors on residence satisfaction, it is important to make a strategy to build up these factors in foodservice operation of silver town.