• KOREAN JOURNAL OF CROP SCIENCE
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• v.57 no.4
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• pp.397-400
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• 2012

Perilla is an excellent oil crop for linolenic acid production but still needs more research to improve grain yield and chemical properties. We tried to estimate the possibility for improving grain yield and its quality by applying nitrogen top dressing(4kg per 10a) at 5 days after flowering stage of perilla, using a cultivar Yujin. This study investigated the growth characteristics and seed quality. Nitrogen top dressing on the flowering stage has little affected on such traits as length, node number and diameter of main stem, and branch, cluster and capsules numbers per plant. But compared with standard cultivation as a control, top dressing showed more leaf chlorophyll content by 85%, higher 1000-grain-weight by 31%, and one day extension of maturing period; consequently, grain outyielded by 60% with 123kg per 10a. Seed chemical components also showed 33.3% protein and 48% oil contents that were 11.5% and 6.2% higher than those of control, respectively. Also by top dressing, saturated fatty acid (palmitic and stearic acid) decreased and linoleic acid among unsaturated fatty acids increased. It is concluded that nitrogen topdressing at late flowering stage promotes grain yield and quality of perilla.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.49 no.6
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• pp.457-462
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• 2004

Lodging is one of the most serious problems in soybean cultivation. Therefore, improved cultural methods to reduce lodging as well as to increase photosynthetic ability should be mostly desirable to increase soybean production. The test variety was 'Hwangkeumkong' which was pinched at V7 stage. The greatest difference in canopy height between rows was shown when every other row was pinched, which also recorded the most effective reduction in lodging. The 9th leaf of soybean plants in non-pinching rows of alternative non-pinching and pinching plot showed the highest photosynthetic ability due to the greatest difference in canopy height. Although leaf area index was higher in pinched rows in average after 17 August, alternative pinching of every other row recorded the highest LAI on 5 September. Alternative pinching of every other row resulted $2\~14\%$ higher yield than non-pinching or complete pinching due to the increases of number of grains in the upper part of main stem and average grain weight of non-pinching rows and in alternative pinching.

• Korean Journal of Medicinal Crop Science
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• v.5 no.3
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• pp.202-205
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• 1997

This study was carried out to determine the effect of sowing time on the flowering, growth and yield of Scutellaria baicalensis Georg, which was collected from Yeochon district, cultivated after barley in the southern coastal areas of Korea. Emergence and flowering dates in the sowing time of June 1 were earlier than those of the other sowing times. In the sowing time of June 1, length and diameter of main stem, number of node per main stem, number of branch per plant and dry weight of stem leaves were greater than those of sowing times of June 10 and June 20. Yield components such as main stem length and diameter, main stem numbers, branches per plant, dry weight of stem leaves, main root length and thickness, number of large root and fine root per plant, and dry weight of root were the highest at the sowing time of June I as the yield of 71.3kg/10a. Optimum sowing time of Scutellaria baicalensis Georg cultivated after barley was June 1 in southern areas of korea.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.34 no.4
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• pp.364-369
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• 1989

Leaf characteristics of main stem and tiller of IK type maize (IK/ /IRI/B68) were compared with those of Jinjoo Ok hybrid which are not usually tillered. A total of nine leaves from flag leaf to the third or the fourth leaf below ear-bearing node were sampled from each stem or tiller. There was no significant difference in mean leaf length between IK/ /IRI/B68 and Jinjoo Ok. But the mean leaf width of IK/ /IRI/ B68 was about 2 cm narrower than that of Jinjoo Ok. The mean leaf area of the IK/ /IRI/B68 was also smaller than that of Jinjoo Ok due to the narrower leaf width. There were not significant differences in mean leaf characteristics between main stem and tillers of IK/IRI/B68. The longest leaf was the leaf below the ear-bearing node and the widest leaf was the leaf just above the ear-bearing node. Mean length. width and area of leaf on main stem and tillers were similar. Coefficients of variation calculated for individual leaf indicated that the leaves near the ear-bearing node were more uniform than others. The leaf area measured was significantly greater than that estimated by formular, length x width x 0.75. New constant to estimate leaf area of tillering maize was derived as 0.8.

• The Journal of the Korea Contents Association
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• v.5 no.3
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• pp.103-111
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• 2005

By international lighting market's growth and domestic landscape lighting market's growth, the latest lighting market is activated. But, They are doing price competition that domestic lighting technology and development technology of lighting fixtures design do not possess international competitiveness than these change. Specially, as image of area and the country can be influenced greatly by cityscape at present visual point that many interests are converged country and identity establishment of local government, many cities are using force hereupon. Constructs which cityscape is various including natural ecology area of life environment gather and are done Image creation and this people's consciousness and culture living soon inside thing which do speaking by proxy be. Than city's night view nature lighting more than by spectacle lighting along with life lighting to basis materialize can. It is meaning more than thing that fine view of city becomes beautiful simply that night view of city becomes superior, that means that city efficiency and quality of life are exalted by a word. Wish to establish effective lighting technology and new product design process through PLS lighting technical development and 300 W lighting fixtures design development hereupon, and raise domestic spectacle lighting market's localization and domestic lighting market's competitive power furthermore.

• Korean Journal of Soil Science and Fertilizer
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• v.29 no.4
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• pp.403-410
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• 1996

Variations of temperature and physicochemical environment during composting of a mixtures(2:1, v/v) of cattle manure and rice hulls(CMR) in two different composting methods, static windrow(SW) and aerated static pile system(ASPS), were monitored for evaluating the efficient composting system in greenhouse. The pH of composting materials increased to around 8.9 initially, then decreased and stabilized slowly to the neutral value. Composting materials in ASPS showed a rapid stabilization in pH value from the 4th week comparing to the speed in SW. Thermophilic stage for ASPS Lasted at 3 week whereas 6 weeks for WS. Required time to get thermophilic zone in compost was shorter in ASPS than in WS. Reduction rate in total carbon(T-C) was higher in ASPS than in WS. Organic matter was reduced more rapidly in ASPS than in SW showing 9 percent difference after the 6th week. Total nitrogen(T-N) increased while composting process, showing 9 percent after 6th week in WS and 1.8 percent after 7th week in ASPS. C/N ratio was stabilized after 6th week showing 17 and 21 level in WS and ASPS each. Quantity of ash and mineral content increased during composting in both system, showing higher content in ASPS. Composting process by intermittent, aerated static pile system in greenhouse had a significant effect on the reduction of required period for composting.

• Food Science and Preservation
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• v.23 no.4
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• pp.538-546
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• 2016

Kochujang was prepared by replacement of rice (25%, control) with pumpkin or purple sweet potato by 0. 5, 10, and 15% (total addition ratio of rice and sweet potato=25% of sample). Effects of the addition of sweet potato on physiochemical properties of fermented Kochujang were investigated. Viable cells of yeast decreased in the sweet potato-added Kochujang at the later stage of fermentation, while there was no significant difference in the number of bacteria among the test groups. As the addition ratio sweet potato increased, ${\alpha}$-amylase activity increased while protease activity decreased. Hunter L, a, and b values of Kochujang prepared with purple sweet potato were lower than those with pumpkin sweet potato. Changes in ${\Delta}E$ value was greater in Kochujang prepared with pumpkin sweet potato than that with purple sweet potato. Oxidation-reduction potential and water activity were higher in sweet potato-Kochujang than control, but reducing sugar content was higher in control. Alcohol and amino-type nitrogen contents were higher in Kochujang prepared with pumpkin sweet potato than that with purple sweet potato, but it was not significant. Overall sensory acceptability was highest in Kochujang prepared with 10% of purple sweet potato while that with 15% pumpkin sweet potato was the least preferred.

• Korean Journal of Agricultural Science
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• v.25 no.1
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• pp.6-11
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• 1998

Bean sprout is one of the traditional vegetable in Korea and produced by sprouting soybean (Glycine max L.) cultivars. This experiments was conducted to investigate the ecological characteristics in collected small grain soybean lines from Chungnam province region. Thirty varieties were used in this study. Seed coat color of collected small soybean lines showed eight different types. Major seed coat color type was yellow as 8 lines of total 35 lines. The stem height, number of nodes and number of branches averaged 58.5 cm, 16.5 nodes and 11.8 branches, respectively. The average number of main stem pods and number of branching pod were appeared 43.1 and 62.7 respectively. One hundred seed weight averaged 9.9g which was lower than 10~12g of sprouting soybean cultivars as breeding goal of Korea. The average of node width showed 13.2cm and long stem open types and short stem close types were classified 1 line and 14 lines. The flower dates of collecting small soybean lines were between 8 Aug. and 13 Aug. and flowering duration was 74~85 days. The date of maturity were between 12 Sep. and 12 Oct., and maturity duration showed great variation among cultivated soybean lines.

• Journal of Yeungnam Medical Science
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• v.1 no.1
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• pp.107-113
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• 1984

To evaluate the morphologic changes of the renal arteries in the condition of high-salt diet, we scheduled the control group which fed routine animal diet added 0.06% of Sodium chloride, low-salt group which fed with 2.0% of sodium chloride, and high-Salt group which fed with 8.0% of sodium chloride. The experimental animals were sacrificed every two week until 20 weeks of final experimental week. The results obtained were as follows; 1. Slight intimal thickening of the renal arteries is observed from 16th experimental week and continued the end of the experiment in the rats of control group. 2. In low-salt group slight intimal thickening of the renal arteries is observed from 12th experimental week and continued to the end of the experiment. 3. In high-salt group the intimal thickening began from 6th experimental week and its degree was hasten with week, and provoked moderate to high degree of lesion at the end of the experiment. Medial proliferation and degeneration of the intima and media, though their quality is mild, also associated at the end of the experiment.

• Korean Journal of Plant Resources
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• v.19 no.2
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• pp.340-343
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• 2006

This study was conducted to find out the effect of rainfall time on growth and seed quality in safflower. Rainfall was done artificially and the treatment of rainfall time was divided into 6 parts. Each rainfall treatment was done from the first day of flowering up to the fifth day after flowering, from sixth day after flowering to the tenth day after flowering, from the eleventh day after flowering to the fifteenth day after flowering, from sixteenth day after flowering to twentith day after flowering, from the twenty first day after flowering to the twenty fifth day after flowering and from twenty sixth day after flowering to thirtith day after flowering. Rainfall time after flowering did not affect disease occurrence on the upper part and flower bud of safflower, which were infected at were 3.3 and 1, respectively. Ripened grain found on the main stem and primary branch was 37.4% and 65.0% at first day to the fifth day and sixth day to the tenth day rainfall periods after flowering, respectively. Yield was decreased by 14% in the sixth day up to the tenth day and eleventh day up to the fifteenth day rainfall periods (282-281kg/10a) compared to the one under control (327kg/10a). Hunter's L value was 73.5 and 69.9 in twenty first up to the twenty fifth day and twenty sixth up to the thirtith day rainfall periods after flowering, which decreased significantly to 79.3 under non-rainfall period. Therefore, it can be concluded that the optimum harvest time is twenty fifth day after flowering to maintain seed quality at rainfall time and before harvesting period.