• Applied Biological Chemistry
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• v.43 no.3
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• pp.207-212
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• 2000

Physicochemical and sensory characteristics of soybean sprouts from domestic and foreign soybean cultivars were investigated. 100-seed weights of domestic cultivars were much larger than that of Canadian cultivar and recommended cultivars were larger than traditional cultivars. Water absorption of soybeans increased sharply to initial 6 hrs during steeping, and did not change much thereafter. In all soybean cultivars 16 amino acids were detected and the contents of Asp, Glu, Lys and Arg were more than 50% of total amino acid contents. All soybean cultivars showed some difference in composition of fatty acids and the content of linoleic acid was highest. The contents of K and P were high and those of Fe and Zn were low. The compression force of hypocotyl after cultivation was the highest in Eunha and the lowest in Junjeori and the compression force of cotyledon was the highest in Danyeop and the lowest in Canadian cultivar. Qualitative discription analysis for cooked soybean sprouts and soups showed significant difference in 6 characteristics of yellowness of cotyledon, size of cotyledon and so on.

• Korean Journal of Soil Science and Fertilizer
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• v.7 no.1
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• pp.35-42
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• 1974

From the results of countrywide two year N. P. K simple trial with newly bred IR 667-Suwon 214 and leading local varieties for comparison soil productivity (yield without fertilizer) and fertilization productivity (yield increase with fertilizer) were investigated. 1. IR667 showed higher yield than leading local by 19% in 1971 and by 12% in the year of low temperature stress, 1972. High yielding capacity of IR667 was attributed to greater number of spikelet per panicle. The coefficient of variation in yield was smaller in IR667 but the leading locals showed higher yield in 23(1971) and 30% (1972) of the fields. 2. IR667 required more nitrogen, especially phosphorus and potassium. Fertilization efficiency (yield increment per unit fertilizer) in IR667 was-about 4kg higher in nitrogen but smaller in phosphorus and almost the same in potassium. 3. Soil productivity was higher in IR667 but percent contribution of soil productivity to total productivity (field productivity) was lower. 4. Percent contribution of fertilization productivity to field productivity was 19 to 33, of which 5 was due to phosphorus and potassium. 5. The greater the soil productivity, the greater the field productivity becomes, but the much greater the percentage contribution of soil productivity becomes. 6. Fertility saturation point at which fertilization efficiency is nil, was propoesd as a soil productivity (or field productivity) limit.

• Journal of Sericultural and Entomological Science
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• v.28 no.2
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• pp.48-51
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• 1986

Resistance to the flacherie virus(FV) and the densonucleosis virus(DNV) of 10 Japanese lines and 10 Chinese lines used for hybrids was tested and the results obtained are as follows ; 1. Hansang #1 showed the highest resistance to the FV among the tested Japanese lines whereas Mudeung was of lowest resistance. In Chinese lines tested on the resistance to the FV, Jam118 was the highest while Jam 116 was the lowest. 2. In Japanese lines tested on the resistance to the DNV, it was shown that Jam 117, Gyeongchy, Mudeung, Hansaeng #1 and Hansaeng #3 were of the complete resistance but Jam 115 showed the lowest resistance. On the other hand, all the Chinese lines tested showed the complete resistance to the DNV.

• Korean Journal of Food Science and Technology
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• v.8 no.2
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• pp.74-79
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• 1976

Two rice varieties in Korea, an Indica type 'Tongil' and a Japonica type 'Jinheung', were stored at $5^{\circ}C$ and $30^{\circ}C$ for six months and the changes in organoleptic quality and lipid components were investigated to obtain the following results. In storage, both varieties brought about increases of hardness, cohesiveness and gumminess, and a decrease of adhesiveness among textural parameters of cooked rice. Storage at $5^{\circ}C$ showed no change in organoleptic quality but storage at $30^{\circ}C$ caused the occurrence of off-flavor in both varieties and a marked decrease of stickiness in Jinheung. Rice samples before storage contained 5-times more free lipids than bound lipids and free lipid content of Tongil was $70{\sim}80%$ of Jinheung. In storage, bound lipids tended to increase slowly while free lipids increased in both varieties at $5^{\circ}C$ and tended to increase in Tongil and to decrease in Jinheung at $30^{\circ}C$. In free lipid fractions of rice samples before storage were found 9 components including triglycerides, free fatty acids and sterol esters and in bound lipid fractions were found 8 components including free fatty acids and sterol esters, as the major components. In storage, changes in lipid components were more remarkable in free lipids than in bound lipids and in Jinheung than in Tongil. It was, therefore, concluded that Tongil variety had a better storage stability than Jinheung variety and the deterioration of rice quality occurred mainly in free lipid fractions during storage.

• Proceedings of the Korean Society of Crop Science Conference
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• 2001.05a
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• pp.70-71
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• 2001

• Proceedings of the Korean Society of Crop Science Conference
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• 2001.05a
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• pp.132-133
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• 2001

• Journal of Sericultural and Entomological Science
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• v.22 no.2
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• pp.8-12
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• 1981

Practical application of silkworm artificial diet is very desirable to save labour in sericultural industry as the problem of labour shortage is becoming serious in Korea. However, silkworms reared on the artificial diet are more susceptible to viruses than those reared on mulberry leaves because of the lower anti-viral activity of gut juice of silkworms grown on artificial diet compared with that of silkworms grown on mulberry leaves. In this study, authors investigated the varietal difference of silkworm larvae, Bombyx mori L., reared on artificial diet which contained 20 percent of dried mulberry powder, in the susceptibility to nuclear polyhedrosis virus (NPV). The results showed that there is no difference in susceptibility to NPV among tested varieties when high concentration of NPV was admitted to silkworm larvae, but varietal difference appeared in lower concentration admitted. Among 7 hybrids tested, Hansaeng 1${\times}$Hansaeng 2 was most resistant to NPV with an $LC_{50}$ of 2.7${\times}$10$\^$6/ and Jam 111${\times}$Jam 112 was also more resistant comparatively than other hybrids.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.25 no.4
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• pp.28-37
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• 1980

New malting barley variety "Sacheon #6" is an early maturing, medium height, lodging resistance, high tillering, good quality and high yielding. This variety was developed from the cross Harupin-Nizo x Hokudai #2 made in 1970 at Sacheon Malting Barley Experiment Station, Doo San Farms Co., This variety was determined to recommend to the all malting barley production areas in southern part of Korea from 1979.from 1979.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.31 no.3
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• pp.350-355
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• 1986

Sixteen Korean leading barley varieties were tested on the sixtieth day after harvest, in order to investigate differences for germinative traits related, and on the eightieth day to test optimum water level for germination test. The germinative energy(GE) and capacity(GC) in the 4.5cc water level were the highest individually. Varietal variations among GE, GC, promptness index(PI) and water sensitivity(WS) were highly significant in storage conditions and water levels. Correlation coefficient estimated were positive among GE, GC, PI, but negative between these traits and WS. Also the varietal difference of WS gets higher with the following order of malting barley<naked barley<covered barley. Heritabilities of broad sense for GE, GC, PI and WS were high, therefore, these traits could be considered in malting barley breeding.

• Korean Journal of Food Science and Technology
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• v.22 no.4
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• pp.398-404
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• 1990

This study was carried out for investigation of morphological characteristics and for analysis of the relationships between morphological indices and proximate compositions of the recommended soybean varieties in Korea. The weight of 100 seeds and weight percentages of seed coat and germ to the whole soybean of 19 varieties were ranged from 12.28 to 25.54g, from 6.02 to 8.29% and from 1.66 to 3.35%, respectively. The average long and short widths and length were $5.95{\sim}7.59mm,\;5.03{\sim}6.95mm\;and\;6.44{\sim}8.38mm$, respectively. The Hunter b values(yellowness) ranged from 15.9 to 21.7 for seed coat and from 17.7 to 23.1 for cotyledon. From the statistical analysis, a strong positive correlation(r>0.97) existed between total weight and cotyledon weight and long width, and between cotyledon weight and long width. Protein content had low correlations(r<0.48) with total weight, cotyledon weight, length and long width.