• The Korean Journal of Ecology
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• v.16 no.4
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• pp.417-428
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• 1993

Branching growth pattern of Mugnolza denuduta is likely to be originated from two growth strategies: environment overcoming strategy and life maintenance strategy, which coexist in a tree. Growth rate of branches was strongly correlated with relative light intensity (P<0.001) and physical contact (P<0.01), however there is no significant correlation between growth rate and direction of branch. When relative light intensity is less than 1%, the growth was restricted by physical contact with the surrounding branches. In contrast, the growth was rarely restricted by physical contact when relative light intensitiy was 10% or more. The branching rate was significantly affected by the presence or absence of physical contact (P<0.05), but it was not significantly affected by relative light intensity nor by the direction of branch. In the beginning stage of the growth, the ratio of the material allocation from main branch to subbranch was large and varied with the influence of surrounding environment. These various growth rates, which implicate a variety of material allocation ratios (0.16~0.98), affect branch growth pattern through the optimum growth strategies. The growth and arrangement of branches of Magnolia denudata display the solar collectors to maximize the total amount of energy absorbed and to overcome the restriction of the environment.

• Proceedings of the Korean Environmental Sciences Society Conference
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• 2007.05a
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• pp.465-467
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• 2007

애기장대에 납을 농도별로 처리하였을 때 식물의 생장과 종자 발아에 미치는 영향을 조사하였다. 환경부고시 오염물질 배출기준치를 기준 농도로 하고 이보다 10배 및 50배 높은 농도의 납을 각각 처리한 애기장대의 줄기생장을 조사한 결과 오염물질 배출기준 농도와 이보다 10배 높은 농도에서는 줄기 생장이 정상식물보다 약 18%정도 감소되었다. 또한 오염물질 배출기준 농도보다 50배 높은 농도를 처리한 식물에서는 정상식물보다 약 41% 줄기생장이 감소하였다. 3가지 농도의 납을 애기장대에 처리한 후 식물의 뿌리 생장을 조사한 결과 오염물질 배출기준농도를 처리한 식물의 뿌리 생장은 정상식물과 거의 유사하였으나 오염물질 배출기준농도의 10배 이상이 되면 뿌리 생장이 전혀 되지 않았다. 3가지 농도의 납을 처리한 배지에서 애기장대의 종자 발아율을 측정한 결과 오염물질 배출기준 농도와 이보다 10배 높은 농도를 처리한 배지에서는 종자 발아율이 100%로 나타나 정상배지에서의 발아율과 차이가 나타나지 않았으나 오염물질 배출기준 농도보다 50배 높은 농도를 처리한 배지에서는 발아율이 0%로 나타나 종자 발아가 전혀 되지 않았다. 이러한 결과는 토양 속에 침적된 납은 애기장대의 생장과 종자 발아에 영향을 미치어 줄기 및 뿌리의 생장을 감소시켰으며, 또한 종자 발아에도 매우 치명적인 영향을 미치는 것으로 생각된다.

• Proceedings of the Korean Information Science Society Conference
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• 2012.06c
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• pp.362-363
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• 2012

본 논문에서는 한 장의 실제 나무 영상이 주어졌을 시, 사실적인 3차원 나무 모델링(modeling) 및 자가생장(self-growth) 표현을 위한 방법을 소개하도록 한다. 스켈레톤기반의 간략화(skeleton-based abstraction)를 이용하여 동일한 나무 몸통(trunk)을 갖는 다양한 나무 모델생성과 함께 나무의 다면체구조(manifold structure)를 고려한 지오데식 커널(geodesic kernel)을 이용하여 나무의 자가생장을 표현한다. 나무의 자가생장은 사전 정의된 나무 굵기, 전체 크기, 그리고 가지증식 순서정보와 같은 상대적 성장정보(allometric information)를 동시 이용하여 상대적인 나무 생장(allometric tree growth)을 표현하도록한다. 한편, 보여지지않는 나무 가지와 잎들에 대해선, 나무구조는 로컬하게 자기유사성(local self-similarity)을 갖는다라는 고전적인 절차적(conventional procedural) 가정을 이용하여 자동적으로 생성토록한다. 실제영상을 이용한 몇몇들의 실험을 통해 보다 효과적으로 나무 모델 및 생장 표현이 가능함을 보여주도록한다.

• Proceedings of the Korea Contents Association Conference
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• 2013.05a
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• pp.303-304
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• 2013

본 연구는 농축산물의 생산에 필요한 생장환경을 모니터링 하여 농축산물의 생산을 증대시킬 수 있도록 생장환경관리 모니터링 시스템을 설계하는 것이다. 생장환경 모니터링 시스템은 크게 5가지로 분류할 수 있다. 센서, 센서노드, 센서와 통신을 하는 싱크노드 및 관제 시스템과 연결하여 주는 게이트웨이 및 관제 소프트웨어이다.

• Journal of Mushroom
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• v.4 no.3
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• pp.122-127
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• 2006

This study was carried out to investigate the mycelial growth and density of A. auricula treated four kinds of substances L-citrulline, L-carnitine, Senna, Garcinia cambogia made from 10, 100, 500, 1000, 1500, 2000 times solutions respectively. Senna all treatments made from 10, 100, 500, 1000, 1500, 2000 times solutions are available for mycelial growth and density than control. Senna treatment made from 100 times solution of them is the best. L-citrulline treatment made from 500 times solution grew more much 7.86mm for 15 days than control, also it was optimal. L-carnitine treatment made from 100 times solution grew more much 3.4mm for 15 days than control, also it was optimal. Garcinia cambogia all treatments made from 10, 100, 500, 1000, 1500, 2000 times solutions were not available for mycelial growth and density than control. But Garcinia cambogia treatment made from 1000 times solution of them was similar to control. Accordingly, these solutions like that were effective to mycelial growth and density than control.

• Proceedings of the Korean Environmental Sciences Society Conference
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• 2006.05a
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• pp.411-413
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• 2006

애기장대에 카드뮴을 5가지 농도(1, 5, 15, 30, 50 mg/L)로 처리하였을 때 식물의 생장에 미치는 영향을 조사하였다. 환경부고시 오염물질 배출기준농도(0.1 mg/L)의 50배 높은 카드뮴농도로 처리한 식물의 줄기 생장은 정상식물보다 어느 정도 촉진되었으나,오염물질 배출기준농도의 150배 이상의 높은 농도에서는 농도에 비례하여 생장이 감소되었다. 뿌리 생장에서는 줄기 생장과 유사한 경향을 나타냈지만 오염물질 배출기준농도의 50배 이상의 높은 카드뮴농도에서부터 뿌리생장이 점진적으로 감소하였다. 잎 생장에서는 줄기 생장과 비슷한 경향을 나타내어 오염물질 배출기준농도의 50배 높은 카드뮴농도까지는 엽신이 크고 표면적이 증가하여 생장이 정상식물보다 오히려 촉진되었으나 150배 이상의 높은 농도부터는 농도에 비례하여 생장이 감소되었다 카드뮴을 처리한 식물들의 생중량은 줄기와 잎 생장의 결과와 거의 유사한 결과를 나타내었다.

• Journal of Korean Society of Forest Science
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• v.69 no.1
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• pp.1-5
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• 1985

Growth characters such as height, DBH, crown width, branch length and branch diameter were measured from 23 clones of plus trees of Pinus koraiensis. The results were as follows; 1) Differences between the largest and smallest clones were amounted to 41% in height, 81% in DBH, 50% in crown width, 55% in branch length and 83% in branch diameter. 2) There were significant differences between clones in every growth characters and correlation coefficients between growth characters were positive and significant ($r=0.418^*{\sim}0.917^{**}$). 3) The broad sense heritabilities were 0.46 for height, 0.45 for DBH, 0.28 for crown width, 0.26 for branch length and 0.18 for branch diameter. 4) The genetic gains predicted for each characters were ranged from 4.1% to 11.1%, when selecting the best 3 out of 23 clones.

• Journal of Korean Society of Forest Science
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• v.59 no.1
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• pp.51-56
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• 1983

Embryo tissue from Pinus koraiensis was established in culture on G.D. and W.S. basal medium supplemented with the auxin (NAA, 2,4-D, IBA) and kinetin. The various combinations of growth regulators were studied in order to determine the specific requirements of the callus tissue in vitro. The inorganic nutrient combination of G.D. medium was found to be better than that of W,S. medium. G,D. basal medium supplemented with 0.1 ppm NAA and 0.1 ppm kinetin was the most successful nutrient combination for the growth of callus induced from the embryo of P. koraiensis.

• Ecology and Resilient Infrastructure
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• v.6 no.4
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• pp.295-303
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• 2019

This study investigated the effects of various cultivation pots on Betula platyphylla var. japonica seedlings in order to select suitable pots for the production of healthy seedlings for the ecological revegetation. We used six types of the pots natural pot, natural pot with inside 5 mm width root turning bump, natural pot with inside 10 mm width root turning bump, negative-phototropism pot, negative-phototropism pot with inside 5 mm width root turning bump, and negative-phototropism pot with inside 10 mm width root turning bump. As greenhouse cultivation provided a high level of control of irrigation and temperature, the seedlings did not show any significant differences in plant height, number of branches, and diameter at root collar, but showed a significant difference in root growth among the different types of pots. The root growth was best in the negative-phototropism pot. In the negative-phototropism, the roots grew in a vertical shape, while they grew abnormally in a spiral shape in the natural pots. In outdoor cultivation, the growth of seedlings showed significant differences according to container types. The seedlings grown in specially manufactured negative-phototropism pots were most excellent in all of the height, number of branches, diameter at root collar and root growth. As for the seedlings grown in the negative-phototropism pots, their roots grew vertically and thus their rooting was well established after they were transplanted outdoor. A size of less than 5 mm ridge installed in the negative-phototropism was found to be appropriate for the seedling growth. These results showed that the negative-phototropism pot would be best suitable for the growth of Betula platyphylla var. japonica seedlings and for the production of seedling for ecological revegetation.

• Proceedings of the Korean Society for Bio-Environment Control Conference
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• 2001.11a
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• pp.116-122
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• 2001

고추재배에 있어서 노동력이 가장 많이 투하되는 수확작업을 줄이기 위하여 무엇보다도 품종이 유한화서이면서 일시에 성숙되는 특성을 가져야 한다. 현재 재배 중인 고추 품종은 모두 무한화서이므로 영양생장과 생식생장을 병행하며, 생장기간 중에 수차례 열매를 수확하고 있으나, 적과를 일시에 수확하고자 하면 유한화서를 가지며 적과의 착과 및 성숙시기가 집중되어 있는 품종을 육성하여야 한다. (중략)