• Title/Summary/Keyword: October 11th

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Changes of useful components and biological activities of Solanum nigrum Linne fruit according to different harvest time (수확시기에 따른 까마중 열매의 유용성분 및 생리활성 변화)

  • Choi, Seongkyu;Yun, Kyeong-Won;Kim, Yong-Doo;Jin, Seong-Woo;Kim, Kyung-Je;Kang, Kyeong-Yun;Koh, Young-Woo;Im, Seung-bin;Jeong, Sang-Wook;Seo, Kyoung-Sun
    • Food Science and Preservation
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    • v.24 no.6
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    • pp.849-856
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    • 2017
  • In this study, we investigated the variation in free sugars, organic acids, amino acids, antioxidant activity and anti-inflammatory effect of Solanum nigrum Linne fruits according to harvest time. Four kinds of free sugars (fructose, glucose, sucrose, maltose) were detected in S. nigrum fruit, and the free sugar contents varied significantly with harvest time. Organic acid content of S. nigrum fruit showed the highest in malic acid and acetic acid, and the highest content of total organic acids was found in S. nigrum fruit harvested on October $18^{th}$ and October $25^{th}$. For the total polyphenol content, S. nigrum fruit harvested on October $18^{th}$ was the highest. The strongest DPPH and ABTS radical scavenging activity was showed in S. nigrum fruit harvested on October $11^{th}$ and October $18^{th}$. The anti-inflammatory activity and antioxidant effects were the highest in the ethanol extract from S. nigrum fruit collected on October $18^{th}$ and October $11^{th}$. Thus, it seems the best to harvest of S. nigrum fruit harvested on October $11^{th}$ and October $18^{th}$.

Transplanting Date and Planting Density Affect the Growth Characteristics and Seed Yield of Italian Ryegrass (이앙 시기와 재식 밀도에 따른 이탈리안 라이그라스의 생육 및 종실 수량 특성 평가)

  • Yun-Ho Lee;Jeong-Won Kim;Hyeok-Jin Bak;Hyun-Ki Kim;Hyeon-Soo Jang;Dea-Yuk Kim;Jong-Tak Yoon
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.68 no.4
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    • pp.438-444
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    • 2023
  • Italian ryegrass (Lolium multiflorum Lam.; IRG) sowing season is delayed due to the autumn rainy season. Therefore, to address this problem, transplanting date and plant density were investigated. Transplant times investigated were October 20th, October 30th, and November 10th and planting densities were 50, 70, and 80 hills per 3.3 m2. The plant height, leaf area index, and plant coverage rate were high in the following order: October 20th, October 30th, and November 10th. There was no significant difference among planting densities. In addition, the number of tillers and dry weight before and after wintering were high on October 20th. In terms of yield components, the number of tillers, dry weight, and seed yield per unit area were higher with the transplanting date of October 20th than with transplanting on November 10th. There was no difference in seed yield between the planting densities of 80 and 70 hills per 3.3 m2. However, seed yield was low at 50 hills per 3.3 m2. In conclusion, the transplanting time for stable seed production is late October, and optimal plant density is 70 and 80 hills per 3.3 m2. A stable interplanting number before wintering will contribute to the seed yield.

Spring Green-up and Winter Leaf Discoloration of Three Ornamental Grasses (Gramineae spp.) (화본과 관상용그래스 3종의 봄철 그린업과 겨울철 엽색 퇴화)

  • Kim, Ki-Dong;Lee, Jeong-Ho;Joo, Young-Kyoo
    • Weed & Turfgrass Science
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    • v.4 no.1
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    • pp.49-57
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    • 2015
  • This research was initiated to analyze the periods of spring green-up and winter leaf discoloration of three ornamental grasses which have potential to be widely used with seed propagation. Two native grasses of Arundinella (Arundinella hirta var. ciliata Koidz), fountaingrass (Pennisetum alopecuroides (L.) Spreng), and switchgrass (Panicum virgatum L.) was tested. Spring green-up were evaluated after one year growth from seed propagation on April 1, 2009. Arundinella started with quick pick of spring green-up during $13^{th}$ to $20^{th}$ of May. Fountaingrass and switchgrass showed relatively slow picks of green-up during $20^{th}$ to $27^{th}$ of May. However, winter leaf discoloration started on swtichgrass and fountaingrass but Arundinella terminated relatively slowly. Swtichgrass showed the pick discoloration during $8^{th}$ to $15^{th}$ of October from the bottom to top parts of the plant. Fountaingrass showed the pick winter discoloration started from bottom to top parts during the $22^{nd}$ to $29^{th}$ of October. However, Arundinella showed relatively slow discoloration from upper to bottom parts during October $29^{th}$ to November $5^{th}$. Arundinella showed a relatively higher ornamental value with 125 days of the complete green period compared than fountaingrass and swtichgrass which maintained approximately 105 days of green period.

Schooling Behavior and Estimation of the Fish School in Set Net by Fish Finder (어군탐지기에 의한 정치망내의 어군의 행동과 어군량 추정)

  • 신형일
    • Journal of the Korean Society of Fisheries and Ocean Technology
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    • v.22 no.1
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    • pp.11-18
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    • 1986
  • Schooling behavier to a fishing gear and estimation of the volume of fish school in set net have ~ been studied by making use of such techniques as visual observations, underwater cameras, under- water televison. However, all of these observation techniques are subject to restrictions caused by illumination, underwater visibility, underwater transparent and sea conditions. For the above mentioned reasoa, one of the most effective method by this time become generally known a method using fish finder. In this paper, in order to control the fishing ground of set net effectively and to develope the telemetric fish finder, the experiments for the target strength, underwater shape of fishing gear, schooling behavier and volume of fish school with fish finder were performed at Galgott fishing ground of set net located Keouje Island, 15th-24th July and 18th-20th October in 1985. The results of these experiment showed that a method using fish finder in fishing grOlllld of set net is available for estimating distribution and school size, fish behavier in relation to a fishing gear and underwater shape of fishing gears.

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Effect of Seeding Date and Rate on the Agronomic Characteristics and Yield of Forage Barley (파종시기 및 파종량이 총체보리의 생육특성 및 수행에 미치는 영향)

  • Kim, W.H.;Seo, S.;Shin, J.S.;Lim, Y.C.;Kim, K.Y.;Jung, M.W.;Kim, T.H.
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.26 no.3
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    • pp.155-158
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    • 2006
  • This study was carried out to find out the effect of seed date and rate on the agronomic characteristics and yield of forage barley in paddy field of Suwon, from 2001 to 2003. The main plots were consisted of different seeding dates such as 5th and 20th October and 5th November. The subplots were consisted of different seeding rates of barley such as 160, 190 and 220 kg/ha. Plant height was increased at the early seeding. Dry matter(DM) percentage of barley was decreased as the seeding date was delayed. Dry matter percentages of 5th and 20th October and 5th November were 47.4, 41.5 and 34.5%, respectively. Fresh matter yield of barley decreased from 30,092 to 16,018 kg/ha as the seeding date was delayed. And fresh matter yield of barley was significantly increased with the increase in the seeding rate. Dry matter yield of barley decreased from 14,230 to 5,521 kg/ha as the seeding date was delayed. And dry matter yield of barley was significantly increased with increase in the seeding rate(p<0.05). The results obtained from this study indicate that both the seeding date of 20th October and seeding rate of 220 kg/ha would be recommendable for forage yield of barley in paddy field.

2 Cropping systems using field crops in unheated plastic house at paddy field

  • Shin, Jung-Ho;Moon, Jin-Young;Song, Jae-Ki;Choi, Yong-Jo;Hong, Kwang-Pyo
    • Proceedings of the Korean Society of Crop Science Conference
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    • 2017.06a
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    • pp.279-279
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    • 2017
  • In Korea, the single span unheated plastic house cultivated crops from autumn to spring of the following year, removed the plastic film and frame, cultivated rice, set up a plastic house again and cultivated crops. The crops in the greenhouse are utilized mainly for the production of leaf vegetables such as lettuce, leek, and fruit vegetables such as strawberry, watermelon, oriental melon, etc. and raising high income. Because, the production of these crops has characteristics requiring a lot of labor and it is difficult to produce horticultural crops at unheated plastic houses as the rural population ages. Therefore, we conducted a test to develop a crop planting system to cultivate crops in single span unheated plastic houses, although the utilization of labor is less than that of horticultural crops. The prior cropping cultivated three cultivars of sweet potatoes early, the second produced cultivated sweet potatoes, corn and soybeans. In the cultivation of the previous cropping, the sweet potatoes were harvested on the 113th day after planting on March 30th, the yield was 822 kg/10a for Pungwonmi, 1,377 kg/10a for Jinhongmi, 1,483 kg/10a for the Dahomi. Because of differences, the yield of Pungwonmi cultivar was less than that other cultivars and the yield of open field cultivations, we will expect further research. In the cultivation of the succeeding crops sweet potatoes were planted on July 27 and harvested 110 days later and investigated. The product yield of Pungwonmi cultivar was 1,024 kg/10a, and the Jinhongmi, Dahomi cultivars were not at economic level for sale and were necessary to review. In succeeding-crops, corn tested the Ilmichal cultivar, seeded on 27th July, harvested on October 11th. The day of silking was 45 days after sowing, the yield was 1,156 kg/10a, the goods rate was 100% level. The beans in the succeeding cultivation crop were sowed on 27th July, the early maturing of the varieties coming to Hwangeumol and Saeol cultivar, on 17th October, the late maturing soybean Daewonkong cultivar were harvested on October 21st. The yield of early maturing two cultivars was 214 kg/10a, Daewonkong was 257 kg/10a, and 100 seeds weight which were more than the early maturing beans were also heavy. When calculating these incomes price-wise according to the harvest time, we were able to consider the income in the order of corn, sweet potato and soybean from the second term crop. Various studies such as varieties, mulching method, moisture management, control environment management, etc. are considered necessary to develop cropping systems with sweet potato and field crops in future unheated plastic house.

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An Analysis of Consumer's Satisfaction about Korean Traditional Soybean Paste Products - Focusing on Deajeon's Consumers - (전통장류에 대한 소비자 만족도 분석 - 대전소비자를 대상으로 -)

  • Kim, Jong-Hwa
    • Journal of Korean Society of Rural Planning
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    • v.23 no.3
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    • pp.61-72
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    • 2017
  • The purpose of this paper is to estimate consumer's satisfaction by purchasing farmer's processed food. So, this paper surveyed consumers which have purchased Korean traditional soybean paste products, by reason of limiting research objects among lots of farmer's processed food. A survey of 220 consumers was carried out on September and October 2016. For this matters, this paper used multiple linear regression model(included LOG-LIN model) and, set up 1 dependent and 11 independent variables. As the analysis results, we could find out that consumer's satisfaction was affected by 6 variables(price, taste, ease of cooking, confidence of product information, social awareness and perceived 6th industrialization). Among these variables, the strongest variable was "social awareness", and the second was "perceived 6th industrialization". This paper also estimated the rate of change that a dependent variable was affected by independent variables. As the results, this paper found out that "perceived 6th industrialization" had the highest rate of change(5.8%) and the second was "social awareness"(5.6%). This paper proposed 7 implications of Korean traditional soybean paste. Those were the proper price policy and quality value's promotion, quality Improvement and confidence enhancement, development of products for consumer's convenience, enhancement of social awareness, enhancement of politic management about 6th industrialization and accessibility of purchasing information.

The Effect of Merchandise Characteristics of Internet Fashion Shopping Malls on the Shopping Values, Purchase Satisfaction, and Repurchase Intention of Female Consumers (인터넷 패션 쇼핑몰의 상품특성이 여성 소비자의 쇼핑가치, 구매만족도 및 재구매도의도에 미치는 영향)

  • Hong, Byong-Sook;Lee, Eon-Jin;Ma, Hyo-Yeon
    • Journal of the Korean Society of Clothing and Textiles
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    • v.33 no.11
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    • pp.1828-1838
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    • 2009
  • This study analyzes how the merchandise characteristics of internet fashion shopping malls influence the shopping values, purchase satisfaction, and repurchase intentions of female consumers. The survey was conducted from October $11^{th}$ to $29^{th}$ in 2008, and 401 responses were used in the data analysis. The statistical analysis methods were frequency analysis, factor analysis, reliability analysis, and multiple regression analysis. The results show that the merchandise characteristics of internet fashion shopping malls were merchandise information, merchandise assortment, and merchandise price. The merchandise information and merchandise assortment of internet fashion shopping malls influence the shopping values of female consumers. The merchandise information and shopping values of female consumers effect the purchase satisfaction and repurchase intention in internet fashion shopping malls.

VDT Syndrome according to the Types of Computer Use Among Elementary Students (초등학생의 컴퓨터 사용행태에 따른 VDT증후군)

  • Kim, So-Won
    • Journal of Korean Public Health Nursing
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    • v.19 no.2
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    • pp.359-370
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    • 2005
  • The purpose of this study is to provide basic data for prevention of VDT syndrome by confirming VDT syndrome according to the type of computer use. The subjects recruited for the research were 518 students who were in the 4, 5, 6 grades from 5 schools in Seoul. The data were collected during the period from October 8 through October 18, 2004. The results were as follows; 1. The mean value of the VDT syndrome was 1.55 (SD=.52) for the 5th graders. 2. The degrees of VDT syndrome according to the characteristics of the subjects shows higher scores for the 5th and 6th graders, boys, students with more than 4 online friends, students with a low degree of school life satisfaction, and for students with parents who had a negative attitude for their children. 3. The degree of VDT syndrome according to the type of computer use showed higher scores when the students used computers for game more than for study, more than 11 hours in a week, more than 2 hours at one time, not having any rest, in dark places, with the monitor less than 40 an distance from the eyes, sitting with their legs crossed and when the keyboard was in a higher position than their elbows. The internet absorbed group showed higher scores than the unabsorbed group. 4. There was positive correlation between the hours of computer use and VDT syndrome. Also, internet addiction and VDT syndrome had positive correlation. Therefore, each home and society needs to pay consistent attention to correct computer use by their students. Especially, schools will have to educate about computer utilization and VDT syndrome.

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