• 한국염색가공학회지
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• 제16권3호
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• pp.1-7
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• 2004

To study the dyeability(K/S value) and surface color of silk fabrics dyed with Impatiens balsamina extract, its flower, leaf and stem, was extracted by water. This paper investigated some experiments with Impatiens balsamina extract under the various dyeing conditions such as dyeing temperature, dyeing time, repetition of dyeing, dyeing pH with silk fabrics. The results obtained were as follows. 1. It was found that it $\lambdamax$. of silk fabrics dyed with Impatiens balsamina extract was 260nm and its flower, leaf, stem and flowers(white, pink, violet) had same it $\lambdamax$ at 260nm. 2. K/S value was increased when dyeing temperature, repetition of dyeing and time was higher, value of munsell of silk fabrics dyed with Impatiens balsamina extract was yellow-red. dyeing temperature, repetition of dyeing and time was higher, shifted to longer wavelength side. 3. pH added acetic acid was colored reddish yellow-red, but pH added alum was colored yellowish yellow-red in silk fabrics dyed with Impatiens balsamina extract and repetition of dyeing was increased the dye-uptake.

• The Korean Journal of Ecology
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• 제9권4호
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• pp.201-208
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• 1986

The water status of the leaves of several evergreen plants was investigated in order to discuss the geopgraphical distribution of them. Relastionship between relative water content and water potential of the leaves showed linear decrease for evergreen conifers but exponential decrease for Korean box tree (Buxus microphylla var. koreana). On the basis of the leaf water potential, the water status of the conifers during wintering was distinctly divided into three periods; hardening, cold resistance and dehardening, but lacking in those periods for the Korean box tree, where the status continously decreased. In the cold resistance the leaf water potentials were -23 bar for both spruce (Picea jezoensis) and yew (Taxus cuspidata). From these results and threshold temperature at beginning of hardening, distribution of the conifers was explained that in order of the red pine, the Korean white pine, the yew and the spruce the distribution could be extended at higher altitudes and in more northward areas, whereas the distribution of the Korean box tree was restricted to the lowland of temperate zone.

• 생물환경조절학회지
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• 제25권2호
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• pp.77-82
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• 2016

본 연구는 식물공장 인공광원이 수경재배 케일의 생육, 수량 및 글루코시놀레이트(GLS) 함량에 미치는 영향을 구명코자 수행하였다. 인공광원으로 LED B:W(1:1, BW), R:B:W(2:1:3, RBW), BW+형광등(1:1+FL, BW+FL) 등 3처리를 하였다. 수확 엽수와 엽중은 BW+FL이 BW와 RBW보다 우수하였다. 엽장은 BW+FL에서, 엽폭은 RBW가 우수하여 다른 처리와 통계적인 유의성을 나타냈다. 엽록소 함량과 'L' 값은 처리간에 유의성이 없었으며, 'a' 값과 'b' 값은 BW+FL에서 가장 낮았다. GLS 함량은 모든 처리에서 glucobrassicin, glucoiberin, gluconasturtiin, sinigrin, progoitrin, glucoraphamin, epiprogoitrin 순으로 많았으며, 총 GLS 함량은 RBW에서 가장 높았다. 잎의 수분 함량, 조단백질, 조지방 함량, 회분 함량은 처리간에 유의성을 나타내지 않았다. 결론적으로 광은 생육과 2차 대사산물의 합성에 차이가 나타내며, 기능성 향상을 위해 후속 연구가 필요하다고 판단된다.

• 디지털융복합연구
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• 제11권1호
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• pp.299-308
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• 2013

TCDD 독성이 유발된 흰쥐 혈액의 생화학적 지표에 미치는 상엽 물추출물 (MLE)의 효과를 조사하였고 통계자료는 일원분산분석과 Scheffe의 사후검증을 하였다. TCDD 투여 시 감소했던 백혈구와 혈소판의 수가 MLE투여로 급격하게 회복(p<0.01)되어 면역기능 개선효과가 있었다. TT에 의해 감소했던 혈중 칼슘 및 마그네슘의 농도는 MLE 투여 시 유의하게 증가(p<0.01)하였으나 인의 농도는 TT군에 비하여 MLE군이 유의하게 감소(p<0.01)하였다. 신장 기능과 관련된 creatinine 및 blood urea nitrogen은 TT군과 MLE군 사이에 유의성은 없었으며, 요산은 TT군과 MLE군 모두에서 감소하였다. 한편 TT에 의해 증가했던 glucose 농도, amylase 및 lipase의 효소 활성도는 MLE 투여시 유의하게 감소(p<0.01)하여 혈당상승 억제효과가 있었다. Total protein, ${\gamma}$-GTP 활성은 TT와 MLE의 영향을 거의 받지 않았으나 TT에 의해 증가했던 AST, ALT 및 ALP의 활성도는 MLE 투여 시 모두 유의하게 감소(p<0.01)하여 간기능 개선의 효과가 있었다. 한편 Total cholesterol, triglyceride와 LDL-cholesterol의 경우 TT에 의해 유발된 고지혈 증상이 MLE 투여 시 유의하게 감소(p<0.01)하여 항고지혈 효과가 있었으며 HDL-cholesterol은 TT군과 MLE군 모두에서 증가하였다. 이와 같이 MLE는 TCDD독성이 유발된 흰쥐에서 독성을 완화시켜 주는 작용이 있음을 알 수 있었다.

• 한국초지조사료학회지
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• 제31권3호
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• pp.269-276
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• 2011

화이트 클로버에서 마이코라이자 접종이 가뭄스트레스와 관련된 생리학적 요인들을 조사하기 위하여, 마이코라이자 접종 (AM) 또는 비접종구에서 정상관수 (WW) 또는 가뭄 스트레스 처리 (DS)하여 7일동안 주기적으로 잎 수분포텐셜, 상대수분함량, 건물중, 광합성효율, 증산, 기공전도성, 프롤린 및 암모니아 함량을 각각 측정하였다. 모든 조사항목에서 정상적인 관수조건 (대조구)에서는 전 시험기간 중 변화가 매우 적었으며, 마이코라이자 접종에 의한 변화도 매우 낮았다. 반면, 가뭄 스트레스 조건하에서 마이코라이자 비접종구에서는 처리 후 지속적으로 감소하여 처리 7일차에서 잎 수분포텐셜, 상대수분함량, 광합성효율, 증산 및 기공 전도성이 처리일 기준 68.6%, 22.7%, 97.7%, 83.9%, 84.9%로 각각 감소하였으나, 마이코라이자 접종에 의해 각각 그 감소비율이 각각 46.8%, 13.4%, 50.3%, 44.8%, 54.7%로 경감되었다. 암모니아 및 프롤린함량은 가뭄 스트레스 처리 7일후에 마이코라이자 비접종식물에서는 31.8% 및 162%로 각각 증가하였으나, 마이코라이자 접종식물에서는 각각 20.9% 및 76.9%로 그 증가비율이 상대적으로 낮았다. 이러한 결과들은 화이트 클로버에서 마이코라이자 접종이 가뭄처리에 의해 유도되는 스트레스 관련 생리적 요인을 유의적으로 경감시킬 수 있음을 잘 보여준다.

• 한국육종학회지
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• 제41권4호
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• pp.583-586
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• 2009

"Hyehwa" an Asiatic lily cultivar was released in 1998 at National Institute of Horticultural and Herbal Science (RDA), Suwon, Korea. The cross was made in 1991 between Asiatic lily "White Bird", a white colored, and "Avignon", an unspotted scarlet red colored. It was preliminarily selected as A93-20 in 1993. Its multiplication, bulbing growth and flowering characteristic tests were conducted from 1994 to 1998. A new cultivar "Hyehwa" flowers in middle of June and grows 98.7 cm in height. Flowers bloom upward-facing, thick orange (RHS, 28A). Year-round flowering is possible by storage of the bulb under $-1.5^{\circ}C$ conditions. For forcing culture, it is necessary to add calcium to the fertilizer or remove side scales to prevent leaf scorch. Botrytis disease control is needed in the wet season.

• 한국육종학회지
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• 제40권4호
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• pp.546-549
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• 2008

'Yeeun' an Asiatic hybrid lily was released in 2005 at National Horticultural Research Institute (NHRI), Rural Development Administration (RDA), Suwon, Korea. The cross was made in 1994 between Liliium Asiatic 'White Bird' white colored, and Liliium Asiatic 'Cote d'Azur', pink colored variety. It was preliminarily selected as 'A96-5' in 1996. Multiplication and bulbing, and characteristic tests were conducted from 1997 to 2004. The evaluation of characteristics was investigated as 'Wongyo C1-21' in 2004 at Suwon. 'Yeeun' flowers in the end of June and grows 41.6 cm stem length. Flowers are upward-facing, unspotted in petals and yellow green (RHS, 18C). Year-round flowering can be by storing the bulb under $-1.5^{\circ}C$ conditions. For forcing culture, it is necessary to add calcium to the fertilizer or remove side scales to prevent leaf scorch. It is needed to control Botrytis disease in wet season.

• Journal of Plant Biotechnology
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• 제6권1호
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• pp.51-54
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• 2004

This study was conducted to examine differences in shoot regeneration among chrysanthemum cultivars. Leaf explants of chrysanthemum cultivars 'Sulhwa', 'Puma', 'Geummokseo' and 'Sulpoong' were used. Explants cultured on the medium for 2 weeks formed calli at the cut surfaces. Shoots regenerated on MS basal medium supplemented with various concentration combinations of NAA and BAP. Explants were cultured under cool-white fluorescent lamps with a light intensity of $40\mu{Mm}^{-2}$.$s^{-1}$ for 16 $hday^{-1}$, at $25^{\circ}c$ and 70-80% relative humidity. 'Geummokseo' and 'Sulpoong' were the most responsive cultivars in shoot regeneration. Most effective medium for 'Sulhwa' and 'Puma' was MS basal medium supplemented with 10.0 $\mu{M}$ NAA and 5.0 $\mu{M}$ BAP and for 'Geummokseo' MS supplemented with 10.0$\mu{M}$ NAA and 20.0$\mu{M}$ BAP. Regeneration of multiple shoots was observed on MS basal medium supplemented with 1.0$\mu{M}$ or 10.0 $\mu{M}$ NAA and 5.0$\mu{M}$ BAP. High frequency regeneration of adventitious shoots from leaf explants and efficient induction of root from these regenerated shoots were obtained.

• 원예과학기술지
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• 제29권5호
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• pp.503-506
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• 2011

A new hybrid, Phalaenopsis 'Pink Marble' was made by the National Institute of Horticultural and Herbal Science, Rural Development Administration, in 2005. This hybrid was selected from self-crossed progenies of P. '21-1' (collected number) in 1999. In 2001, one line was selected based on the aspects such as flower color, leaf shape, flower stalk, and vigorous growth. Trials were conducted from 2003 to 2005 for evaluation and selection of this cultivar. 'Pink Marble' had a medium flowering habit and a dark pink spot (RHS, RPN74B) on white petal and sepal when fully opened. The number of flowers on each peduncle was 7.5, and flower diameter was 52.3 cm. The general impression of petals and sepals is a plate shape. The thick sepal could extend the long flowering time. The average length of leaf and peduncle were 16.5 cm and 6.8 cm, respectively. It had a half-erect leaf form, and was a fast-growing cultivar. This hybrid is relatively easy to clone.

• Plant Resources
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• 제7권1호
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• pp.77-86
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• 2004

The reduced ratio of red:far-red (R:FR) light acts as a measure of the proximity of competitors and plants can detect the potentially competing neighbor plants by perceiving reflected R:FR signals and initiate the response of “shade avoidance” before actual shading occurs. The phytochrome system is responsible for monitoring the changes in the R:FR and initiating the shade avoidance response. The response to low R:FR ratio was studied in a white aspen Populus alba clone ‘Bolleana’ using two filter systems: a clear plastic filter system that allows a R:FR ratio less than 1.0 to pass from adjacent border plant reflection; and a special commercial plastic that blocks FR light and creates a R:FR ratio above 3.0. The reduced R:FR signals enhanced the stem elongation in response to competition at the expense of relative stem diameter growth. Trees grown inside clear chambers were 27 ％ taller than trees grown inside the FR-blocking filter chambers. Stem taper of clear chamber trees was 16％ less than the FR-blocking filter trees. Low R:FR also induced 22％ more stem dry weight and 13％ greater petiole length per leaf compared to the FR-blocking filter trees. There were no statistically significant differences in leaf area, leaf number increment, and total dry weight between the two light filter treatments.