• 제목/요약/키워드: 근활력

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Seedling Growth and Nutrients Uptake in Hybrid Rice (벼 1대잡종의 묘생육과 양분흡수)

  • Lee, Deog-Bae;Kwon, Tae-Oh;Lee, Jae-Kil;Park, Suk-Hong
    • KOREAN JOURNAL OF CROP SCIENCE
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    • 제40권3호
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    • pp.391-397
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    • 1995
  • This study was carried out to investigate the characteristics of the seedling growth and nutrients uptake at 45 day seedlings in cytoplasmic genetic male sterile lines(HR7028A, IR54756A), their restore line (Yongmoonbyeo) and check variety (Changsungbyeo). Hybrid rices had longer and more roots, heavier dry weight and lower shoot /root ratio than their parents and inbred check variety, showing heterobeltiosis in absorbed amount of inorganic elements, content of total sugar, starch and chlorophyll in plant. Different magnitude of heterobeltiosis were shown between F$_1$ hybrid rices with the same restore line; HR7028A/Yongmoonbyeo had higher heterobeltiosis than IR54756A/Yongmoonbyeo did. Hybrid rices had more number and higher $\alpha$-naphthylamine oxidizing ability of newly-grown roots in 10 day sand culture in ground water with root-cut 45 day-seedling than parental lines and inbred variety. Nunber of the newly-grown roots were positively and significantly correlated with content of total sugar, starch and absorbed amount of inorganic elements in the shoot, and content of chlorophyll in the leaf.

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Influence of Nitrogen and Potassium Split Application on the Physiological Characteristics of Paddy Rice in Sandy Gravel Soil (사역토에서 질소, 가리분시가 수도의 생리적 특성에 미치는 영향)

  • 박경배
    • KOREAN JOURNAL OF CROP SCIENCE
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    • 제22권2호
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    • pp.42-47
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    • 1977
  • Experiment was conducted to find out the influence of nitrogen and potassium split application on the yield and physiology of rice plants in a sandy-gravel soil. Nitrogen and potassium mixed application, nitrogen split application, and potassium split application increased yield of rice by 22, 20, and 18%, respectively, compared to conventional fertilizer application. Nitrogen split application increased chlorophyll content and potassium split application increased root activity. Concentration of silica, magnesium, and calcium was increased by the mixed split application of nitrogen and potassium.

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Varietal Differences in Root Characteristics of Paddy Rice (수도 근부특성의 품종간 차이)

  • Je-Cheon Chae;Jong-Hoon Lee
    • KOREAN JOURNAL OF CROP SCIENCE
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    • 제25권1호
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    • pp.8-13
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    • 1980
  • It was observed that the variety Suweon 258 has a good root system for nutrient and water absorption compared to variety Jinheung, because of larger secondary and tertiary roots inducting long and narrow adventitious roots in spite of less primary roots in number and shorter average length of primary roots.

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日本の新宗教運動におけるヒーリングとスピリチュアリティ -<いのち>のコノテーションとその現代的限界性-

  • 樫尾直樹
    • Journal of the Daesoon Academy of Sciences
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    • 제16권
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    • pp.203-216
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    • 2003
  • 본 논문의 목적은 근·현대의 일본 신종교운동들의 치료문화의 특징을 밝힘으로써 일본의 영성을 설명하는 것이다. 일본의 신종교운동들은 마음과 영혼에 상당한 비중을 주는 경향이 있기 때문에 그들은 '마음의 회복'이라고 불리는 일정한 의식을 갖는다. 달리 말하면 자아의 변화이다. 본인은 일본의 치료문화의 배경 안에서 그 의식을 분석하고자 한다. 왜냐하면 현대 일본의 신종교운동들은 일본의 전통적인 치료문화를 계승하여 발전시켰기 때문이다. 일본 영성의 특징은 자아와 훌륭한 삶 사이의 연계감이며, 일본의 치료문화의 특징은 바로 그 영성에 바탕을 둔 신념과 의식에의 관심을 통한 삶과의 교섭에 중점을 두며, 일본과 같이 풍부하고 포스트모던한 사회 안에서 삶의 활력을 느끼기에 불가능하고 일본의 보통의 삶 안에서의 죽음에 대한 경험의 부재라는, 그래서 그것이 없이는 생동감 있고 명랑하게 살 수 없는 그것의 현대적 한계성을 지적하면서 결론을 위해 이 주제를 세 가지 점에서 다룬다. 1. 일본 신종교운동들의 역사 2. 그 치료와 영성 3. 생기 있는 영성

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The Effect of Aroma Inhalation Method on the Preoperative Anxiety among Patients with Upper and Lower Limbs Surgery (향기요법이 상하지 수술 환자의 수술 전 불안에 미치는 효과)

  • Shin, Seung-wha;Lee, Eun-Ju;Gwak, Mi-gyeong
    • The Journal of the Convergence on Culture Technology
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    • 제4권2호
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    • pp.171-178
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    • 2018
  • The study was done to analyze the effects of aroma inhalation method on preoperative anxiety of upper and lower surgical patients. The research design was a nonequivalent control group non-synchronized design. The subjects were a total 60 patients of each group 30 patients that were operated on under general anesthesia for upper and lower limbs surgery. The tool of the Amsterdam preoperative anxiety information scale(APAIS), systolic and diastolic blood pressure, and pulse rate levels was measured the day before surgery. The data were analyzed by the $x^2$ test Fisher's exact test, paird t-test, and the independent t-test using SPSS 20.0. Study result indicated that Lavender aroma therapy had the effect on reduction of anxiety before surgery and reduction of blood pressure, and pulse rate levels. Therefore, the study result could be used as a scientifical data that can be applied to the nursing interventions that use the aroma inhalation method and contributing to development of the holistic nursing care.

Mechanisms of Salt Tolerance in Crop Plants II. Physiological Responses of Barley, Rye, and Italian Ryegrass Seedling to NaCl Concentration (작물의 내염성 기작 연구 II. 염분농도에 따른 보리, 호밀, 이탈리안라이그래스 유묘반응)

  • 김충수;조진웅;이석영
    • KOREAN JOURNAL OF CROP SCIENCE
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    • 제38권5호
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    • pp.391-397
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    • 1993
  • Rye(Secale cereale cv. Chunchu), barley(Hordeum vulgare cv. Dusan 29#), and italian ryegrass(Lolium multiflorum cv. Barmultra) were treated at 0, 0.1, 0.3, and 0.6 % of NaCl solution for 30 days. Plant height, leaf length, and leaf area were decreased with increasing NaCl level, and leaf area was decreased mainly due to decrease of leaf length. Root length was decreased at higher NaCl levels, but root number was increased. Shoot dry weight was decreased by increasing NaCl levels in rye and italian ryegrass, but barley did not show significant change. Dry weight of root was more decreased than that of shoot at higher NaCl levels. Chlorophyll content was decreased, but electric contuctivty of shoots and roots was increased at higher NaCl levels. Na+ content in shoot and root was increased with increasing NaCl level but the degree was not same. Reducing power of roots was that three crops as affected by NaCl was not equal. Barley was the most tolerant to NaCl stress.

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Analyzing Difference of Urban Forest Edge Vegetation Condition by Land Cover Types Using Spatio-temporal Data Fusion Method (시공간 위성영상 융합기법을 활용한 도시 산림 임연부 인접 토지피복 유형별 식생 활력도 차이 분석)

  • Sung, Woong Gi;Lee, Dong Kun;Jin, Yihua
    • Journal of Environmental Impact Assessment
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    • 제27권3호
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    • pp.279-290
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    • 2018
  • The importance of monitoring and assessing the status of urban forests in the aspect of urban forest management is emerging as urban forest edges increase due to urbanization and human impacts. The purpose of this study was to investigate the status of vegetation condition of urban forest edge that is affected by different land cover types using $NDVI_{max}$ images derived from FSDAF (Flexible Spatio-temporal DAta Fusion). Among 4 land cover types,roads had the greatest effect on the forest edge, especially up to 30m, and it was found to affect up to 90m in Seoul urban forest. It was also found that $NDVI_{max}$ increased with distance away from the forest edge. The results of this study are expected to be useful for assessing the effects of land cover types and land cover change on forest edges in terms of urban forest monitoring and urban forest management.

Nitrogen Management for Infant Rice Seedlings with Extended Nursery Duration by Delayed Transplanting (벼 육묘일수가 지연된 어린모 이앙재배시 질소분시 방법이 생육 및 수량에 미치는 영향)

  • Han, Hee-Suk;Yang, Woon-Ho;Park, Jeong-Hwa;Yoon, Young-Hwan;Kim, Je-Kyu;Yang, Won-Ha;Park, Jong-Wook
    • KOREAN JOURNAL OF CROP SCIENCE
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    • 제53권3호
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    • pp.239-243
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    • 2008
  • This experiment was carried out to elucidate the appropriate split application method of nitrogen fertilizer in infant rice seedlings which show poor seedling growth resulted from extended seedling nursery duration more than 12 days. The 16 day-old infant rice seedling (DOIRS) showed poor seedling growth than 8 day-old seedling. Early growth of transplanted 16 DOIRS was poor, compared with that of transplanted 8 DOIRS. However, the poor plant growth estimated by plant height, tiller number, and the number of newly developed roots was compensated by 70-0-30% (basaltillering-panicle initiation) of nitrogen split application. In 70-0-30% plots among split nitrogen application methods, tiller number, biomass, and leaf area at heading stage of rice showed the highest values. Sixteen DOIRS plots showed lower grain filling and 1000-grain weight, resulted in lower yield of rice than 8 DOIRS plots in the same nitrogen split application. However the lower yield in 16 DOIRS plots was recovered by 70-0-30% of nitrogen split application method to a similar level in 8 DOIRS plots in which nitrogen was split applied by 40-30-30%.

Effect of Planting Density of Sagittaria pygmaea tubers on the Root Competition with Rice Varieties (올미(Sagittaria pygmaea Miq.) 괴경(塊莖)의 재식밀도(裁植密度)가 수도(水稻)와의 근계경합(根系競合)에 미치는 영향(影響))

  • Chae, J.C.;Shin, J.J.
    • Korean Journal of Weed Science
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    • 제7권3호
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    • pp.280-288
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    • 1987
  • The experiment was carried out to clarify the root competition between rice and paddy weed. Sagittaria pygmaea, under field condition. Rice variety Joongwonbyeo(Tongil type) and Sangpoongbyeo(Japonica type) were transplanted and Sagittaria tuber was planted artificially at planting density of untreated control, 4, 8 and 16 tubers/$m^2$, respectively. The number of roots, root fresh weight and root activity of rice and Sagittaria were measured at 30, 45, 60 and 75 days after transplanting. The results obtained were as follows. The root growth of Joongwonbyeo was decreased greatly according to the increase of Sagittaria tuber density compared with Sangpoongbyeo. On the other hand, the root growth of Sagittaria competed with Joongwonbyeo was depressed at 45 days after transplanting, and the one competed with Sangpoongbyeo was depressed at 60 days after transplanting. It was concluded that the competition ability of Sangpoongbyeo against Sagittaria was greater than Joongwonbyeo mainly due to the tall height and large tillers. And also the root growth of Sagittaria competed with Joongwonbyeo was more depressed than that of Sangpoongbyeo.

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Ornithine Decarboxylase Activity in Porcine Reproductive Tissues (Gilt에 있어서 Tissue내에 함유되어 있는 Ornithine Decarboxylase의 활성)

  • ;J.R. Diehl
    • Korean Journal of Animal Reproduction
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    • 제17권2호
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    • pp.159-164
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    • 1993
  • The tissue levels of ornithine decarboxylase (ODC) during the estrous cycle and pregnancy were investigated in the pig. Sexually mature female cycling pigs were used. One animal was sacrificed on estrous cycle days 3, 10, 17, 18, 19, 20 and during pregnancy on day 11. 12, B. 14, 18, 19, 20, 48, 50 and 52. Tissues from the hypothalamus, pituitary, uterus, ovary and skeletal muscle were removed. They were homogenized in buffer, and supernatants were used for measurement of protein concentration and ODC activity. The release of $^14$CO$_2$ from radiolabeled ornithine was proportional to the amout of protein added over the range of 0.125~4mg and to the incubation time. ODC appered to have some relationship with the biological functions of the pituitary, ovary and uterus during the reproductive period, especially on day 19 of the estrous cycle, while it showed no such activities in hypothalamus and skeletal muscle of mature pigs. Uterine tissues had significantly more ODC activity than other tissues tested(p < 0.05).

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