• International Journal of Industrial Entomology and Biomaterials
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• v.43 no.2
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• pp.85-93
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• 2021

Silkworm pupae have been utilized as a food source and have high-quality proteins and fatty acids. However, studies on the nutritional composition of pupae according to their variety, developmental stage, and sex have not been conducted. In this study, the nutritional composition of four Korean silk varieties (Baegokjam, BG; Goldensilk, GS; Juhwangjam, JH; and YeonNokjam, YN) were analyzed according to developmental stage and sex. The main ingredient of the pupa was protein, and the protein levels were higher in females than in males. Fat levels were high in males and increased in YN and GS during the late stage but decreased in BG. Fiber content rapidly increased in the late stages, and the lowest content was observed in BG. The pupae contained all essential amino acids, which were detected at higher ratios in females with a high protein content. Fatty acids had a different predominance depending on the variety. Oleic acid level was high in BG, linoleic acid and linolenic acid levels were high in GS, and palmitic acid and stearic acid levels were high in JH. In the mineral analysis, zinc was dominant in BG, whereas calcium and iron levels were relatively low. Zinc level was low in GS, and calcium and magnesium levels were high in JH. Potassium, sodium, magnesium, and phosphorus levels were low in YN. The silkworm pupae showed differences in components according to their variety, sex, and developmental stage; therefore, selecting a variety suitable for its purpose is necessary.

• Korean Journal of Plant Resources
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• v.35 no.6
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• pp.825-830
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• 2022

"Doha" is a new strawberry (Fragaria x ananassa Duch.) variety, which was released by the Highland Agriculture Research Institute in 2021. The "Doha" variety originates from a 2014 cross between "Saebong No. 3" and "Yeolha," both of which exhibited excellent ever-bearing characteristics, including continuous flowering and large fruits under long-day and high temperature conditions. This new cultivar was initially named "Saebong No. 13" after examining its characteristics and productivity during summer cultivation between 2015 and 2018. After regional adaptability tests, "Doha" was selected from "Saebong No. 13" as an elite cultivar. The general characteristics of "Doha" include spreading, elliptic leaves, and strong growth. The fruits are long and conical and of a red color. The plant height of "Doha" was similar to that of "Goha," but the number of leaves was lower. The number of flower clusters of "Doha" was 8.6, which was 2.8 fewer than that of the control variety, "Goha," with 11.4. The average fruit weight of "Doha" was 13.9 g, which was 4.9 g heavier than that of "Goha." The fruit hardness of "Doha" was 35.5 g·mm^-2, which was 9.4 g·mm^-2 harder than that of "Goha." The marketable yield of "Doha" was 26,971 kg·ha^-1, 125% more than that of "Goha" with 21,479 kg·ha^-1. The findings of this study suggest that "Doha" is a hard fruit and high-yielding variety of ever-bearing strawberries that could increase farming income when distributing to farmers.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.21 no.1
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• pp.82-86
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• 1976

'Radiation No. 6' the first mutant variety of naked barley in Korea was developed from Bangju as .a mother variety. The new variety was characterized by early maturity, short-culm and stablized high yield by the increased number of spikes. 'Radiation No. 6' was registered as a leading variety in 1974, .after 7 years since induction of mutation started.of mutation started.

• The Journal of Korean Medical History
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• v.20 no.1
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• pp.96-111
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• 2007

The tea culture is one of East Asia's traditional drink cultures and its variety, recipe, and effects are specifically recorded in East Asian documents. But the variety and applications of teas that are different from food and not entirely included in the medicine family has not been studied thoroughly yet. This study, through extracting and organizing the variety of teas and their recipes, aims to revive the methods of improving health by using ancient tea.

• International Journal of Industrial Entomology and Biomaterials
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• v.2 no.1
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• pp.65-68
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• 2001

A new silkworm variety, Chunsujam, for spring rearing season is F$_1$ hybrid between Japanese race Jam145 bred by 8459/8711 and Chinese race Jam146 by 8544/M8626. Jam145, Japanese parent of the Chunsujam, showed high GCA in pupation rate and Jam146, Chinese parent, showed high GCA in pupation rate and single cocoon weight. In the local adaptability test performed at 8 local areas in spring of 1999, Chunsujam was 5% higher in larval weight, 3% in single cocoon weight, and 4% in cocoon yield from 10,000 of the 3rd molted larvae, respectively, than the check variety Baegokjam.

• International Journal of Industrial Entomology and Biomaterials
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• v.13 no.1
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• pp.1-5
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• 2006

The major dominant fluoride-endurance (Dfe) gene was introduced into the commercial varieties by crossing and pedigree selection to breed silkworm races that could normally develop in the area that polluted by fluoride. After backcrossed for two generations, the Dfe gene was made homozygous, and individuals with good economic characters were selected to generate next generation. After 8 generations of selection, their characters became stable, and the silkworm variety which is resistant to fluoride, Huayuan${\times}$Dongsheng, for spring rearing were bred.

• IE interfaces
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• v.17 no.1
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• pp.56-70
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• 2004

Expanding product variety and high customer service provision place an enormous burden on demand forecasting and the matching of supply with demand in a supply chain. Postponement of product differentiation has been found to be powerful means to improve supply chain performance in the presence of increasing product variety. Delaying the point of product differentiation implies that the process would not commit the work-in-process into a particular finished product until a later point. This paper reviews the recent analytical models that quantify the value of delayed product differentiation. We conclude the literature review by summarizing and synthesizing the economic evaluation of the postponement and outline directions for future research.

• International Journal of Industrial Entomology and Biomaterials
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• v.4 no.1
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• pp.77-81
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• 2002

A new non-cocooning silkworm variety, Hachojam, suitable for autumn rearing season is single cross Fl hybrid between Japanese race Jam 307 and Chinese race Jam 126. Jam 307, Japanese parent of the Hachojam, which is a source for non-cocooning process showed a high GCA (generation combining ability) in naked pupation rate and Jam 126, Chinese parent, showed a high GCA in pupation rate and single pupal weight. In the local adaptability test performed at 8 local areas in autumn of 1999 to 2000, the naked pupation rate and thin cocoon rate of Hachojam were 64.7% and 35.3% , respectively. The pupal weight calculated from 10,000 of the 3rd molted larvae was 24% heavier in Hachcjam than the cocoon-producing, check variety Daesungjam.

• Journal of Ginseng Research
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• v.24 no.1
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• pp.1-7
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• 2000

To develop a new ginseng variety with good quality and high yielding, a lot of individual ginseng plant were selected in the farmers′ fields in 1968. Among them, a promising line, 680-98-2, has been developed through comparative cultivation of several lines selected with pure line separation from local races in Korea Ginseng & Tobacco Research Institute. Preliminary and advanced yield trials were performed for 8 years. 1) One of them was designated as KG102 and it was then registered as a new variety "Yunpoong" with the regional yield and adaptation trials for 10 years (1981-1990) on November 30, 1998 in Korea.2) For the root characters, the diameter of taproot and ratio of the taproot length to the diameter of Yunpoong were bigger and lower than those of Jakyungiong. Root yield was 27.3% higher in Yunpoong than Jakyungiong.

• Korean journal of applied entomology
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• v.19 no.1 s.42
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• pp.11-20
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• 1980

Percent penetration on a specific rice variety was more affected by blast fungus isolate or predisposition temperature than by temperature and isolate combinations. A susceptible variety tested remained continuously susceptible regardless of whether the variety was grown at different temperature regimes and exposed to isolates/races with differences in pathogenicity and virulence. The expression of virulence by a particular blast fungus isolate race was observed to be changed by subjecting rice host plants to different predisposing temperature conditions prior to inoculation.