• Proceedings of the Plant Resources Society of Korea Conference
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• 2018.04a
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• pp.33-33
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• 2018

본 연구는 대한민국 매실나무 210점과 살구나무 9점의 꽃 구조 특성평가를 위하여 개체별 꽃 크기, 꽃잎의 수 및 크기를 조사하였다. 대한민국 전 지역에서 수집한 매실나무의 꽃 크기는 평균 지름 24.3mm이었고, 꽃 크기별 범위는 21~25mm가 150점(71.4%)으로 가장 많았고 다음으로 26~30mm(45점, 21.4%), 16~20mm(9점, 4.3%), 30mm 이상(5점, 2.4%), 15mm 이하(1점, 0.5%) 순이었다. 살구나무의 꽃 크기는 평균 지름 22.7mm이었고, 꽃 크기별 범위는 21~25mm가 7점(77.8%)으로 가장 많았고 다음으로 16~20mm 및 26~30mm가 각각 (1점, 11.1%) 순이었다. 매실나무의 꽃잎 모양은 원형이 112점(53.3%)으로 가장 많았고 다음으로 난형(51점, 24.3%), 타원형(47점, 22.4%) 순이었다. 살구나무의 꽃잎 모양은 원형이 6점(66.7%)으로 가장 많았고 다음으로 난형(2점, 22.2%), 타원형(1점, 11.1%) 순이었다. 매실나무의 꽃잎 수는 평균 9.2개이었고, 꽃잎 수별 범위는 5개가 138점(65.7%)으로 가장 많았고 다음으로 16~20개(31점, 14.8%), 21개 이상(20점, 9.5%), 5~10개(12개, 5.7%), 11~15개(9점, 4.3%) 순이었다. 살구나무의 꽃잎 수는 평균 5.1개이었고, 꽃잎 수별 범위는 5개가 8점(88,9%)으로 가장 많았고 다음으로 5~10개(1점, 11.1%) 순이었다.

• 한국상하수도협회지
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• s.25
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• pp.22-25
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• 2009

충주를 상징하는 꽃은 국화다. 국화는 여러 개의 꽃잎이 모여서 하나의 큰 꽃잎을 이루는 대표적인 두상화(頭狀花)다. 수많은 꽃잎이 한 송이 꽃을 이루는 묘미, 그것이 바로 충주시 수자원본부라고 할 수 있다. 각자 맡은 분야에서 시민을 위해 봉사하는 그 곳, 충주시 수자원본부를 찾아가 보았다.

• Korean journal of applied entomology
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• v.42 no.4
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• pp.301-305
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• 2003

This study investigated the ecological characteristics of Frankliniella occidentalis on four horticultural crops. On red pepper leaves, larval developmental period and survival rate of F. occidentalis were 6.4 days and 67%, respectively. While adult female lived longer on cucumber leaves as long as 16 days, on Petal lived 8.1 days. F. occidentalis adult female preferred tomato to eggplant, cucumber and red pepper, and higher number of hatched larva were from leaves of middle part of egg-plant compared with those from other parts. F. occidentalis adult female fed preferably on petal compared with leaves and Petals of eggplant, and among petals of four tested plants, the most preference was those of red pepper.

• Journal of Plant Biotechnology
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• v.42 no.4
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• pp.370-375
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• 2015

This experiment compared the regeneration conditions of the radiation mutant spray chrysanthemum 'purple ND'. The four different flower blooming stages (S1: 10% opened flower, S2: 30% opened flower, S3: 50% opened flower, and S4: 70% opened flower) and different petal parts (TBOP: the basal of petal and TEOP: the end of petal) were used to compare regeneration conditions between plants grown in MS medium supplemented with IAA and BAP. The highest adventitious shooting rate was identified in plants grown on the IAA $1.0mg{\cdot}L^{-1}$ and BAP $2.0mg{\cdot}L^{-1}$ when using the end of petal at the S2 stage. It displayed 79.2% regeneration and produced 33.4 shoots. Rooted plantlets were successfully established in the greenhouse, showing the same morphological characteristics of vegetative and reproductive organs with those of the mother plant. Flow cytometry analysis revealed no ploidy variation between the regenerated plants and the mother plant grown under greenhouse conditions.

• Journal of the Korean Society of Food Science and Nutrition
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• v.29 no.6
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• pp.1127-1132
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• 2000

홍화(Carthamus tinctorius L.)의 씨. 순 및 꽃잎의 수용성 및 메탄올 추출물에 대하여 in vitro 실험계에서 항산화 활성을 비교 검토하였다. 성장기 흰쥐의 뇌 micro-some을 이용한 생테막 지질 과산화 억제정도는 꽃잎 수용성 추출물(97.19%)>순 메탄올 추출물(81.38%)>꽃잎 메탄올 추출물(64.99%)>씨 메탄올 추출물(64.95%) 순으로 나타났다. Limoleic acid 산화 실험계에서는 홍화씨 메탄올 추출물과 홍화씨 수용성 추출물에서 비교적 높은 항산화 활성을 보였다. DPPH 에 의한 수소공여능은 특히 순의 0.1% 메탄올 추출물에서 매우 높은 수소공여작용이 나타나 대조구인 BHT와 거의 비슷한 수준의 항산화 활성을 보였다. 이들 추출물의 폴리페놀 화합물 함량은 홍화 꽃잎 수용성 및 MeOH 추출물은 12.70% 및 8.05% 홍화씨 수용성 및 메탄올 추출물은 6.96% 및 12.34%, 홍화순 수용성 메탄올 추출물 및 메탄올 추출물이 8.75% 및 5.10%로 나타났다.

• The Journal of the Convergence on Culture Technology
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• v.6 no.2
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• pp.543-551
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• 2020

Red rose petals are usually disposed but they are an abundant source of phenolics and traditionally used as food supplement and as herbal medicine. Of the Various phenolics, they are known to have anticancer, antioxidant, and anti-inflammatory properties. In this study, we investigated the anti-inflammatory effects of red rose ethanolic extracts(GRP) on lipopolysaccharide (LPS)-activated RAW 264.7 cells. The results demonstrated that pretreatment of GRP(500㎍/mL) significantly reduced NO production by suppressing iNOS protein expression in LPS-stimulated cells. Anti-inflammatory effects byred rose petal were observed in the following. Red rose petal inhibited the translocation of NF-κB from the cytosol to the nucleus via the suppression of IκB-α phosphorylation and also inhibited LPS-stimulated NF-κB transcriptional activity. These findings suggest that red rose petal exert anti-inflammatory actions and help to elucidate the mechanisms underlying the potential therapeutic values of red rose petal. Therefore, red rose petal could be regarded as a potential source of natural anti-inflammatory agents.

• Journal of Wetlands Research
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• v.17 no.2
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• pp.203-208
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• 2015

To identify the effect of fallen cherry blossom on the artificial pond ecosystem, microcosm experiment was conducted into the aquatic decomposition of Prunus species petals. Petals were put in $1mm^2$ mesh nylon litter bags. For treatment group, one flower litter bag was placed into each pot microcosm ($27{\times}20{\times}8cm^3$) filled with influent water from the artificial pond, whereas control group microcosm contained pond water only. Decomposition time were set differently (4, 8, 12, 16 days) among treatment groups. At the end of experiment, most petals were decomposed and only 32.3% of initial dry weight remained with the decay rate (k) of $7.06{\times}10^{-2}day^{-1}$. $NO_3-N$ concentration of microcosm water decreased sharply from 1.90 mg/L at first to 0.02 mg/L, whereas $NH_4-N$ concentration increased from 0.03 mg/L to 2.85 mg/L continually. $PO_4-P$ concentration was 0.03 mg/L at first and increased to 2.39 mg/L by decomposition. Therefore, available phosphorus seems to have leached with higher rate than nitrogen from the petals litter. Increase about 0.02 mg/L in $PO_4-P$ concentration could be estimated in artificial pond from the calculation on the total quantity of fallen blossoms. This result suggests that available phosphorus from the decomposed Prunus petals could cause eutrophication in the artificial pond.

• Food Industry
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• s.216
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• pp.66-72
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• 2010

• Horticultural Science & Technology
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• v.34 no.5
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• pp.799-806
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• 2016

A standard rose cultivar, 'To Dios'(Rosa hybrida) was selected for use as a cut flower from the progeny of a cross between 'Vanilla perfume' and 'Marcia' at the research and development division of the Goyang-si Agricultural Technology Center in 2013. 'Vanilla perfume', an orange-colored (RHS Orange Group 27C) standard rose cultivar with 48 petals, was used as the female plant. 'Marcia', a white-colored (RHS Green white Group 157B) standard rose cultivar with 96 petals was used as the male parent. A cross was made in 2009 and seedlings were produced. Selections were made between 2010 and 2013, and a plant with good cut flower traits was finally selected and named 'To Dios'. 'To Dios' is a standard rose with large flowers of 11.2 cm in diameter and 128 peach-colored (RHS Red Group 36B) petals per flower. Vase life of this cultivar is up to 15 days. It takes 47 days from pruning to blooming and cut flower productivity is approximately $160stems/m^2$ per year. 'To Dios' was registered as a new cultivar No. 4875 with the Korea Seed & Variety Service on March 19, 2014.

• Journal of Naturopathy
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• v.10 no.1
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• pp.42-47
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• 2021

Purpose: This study investigated the antioxidant activities of water extracts from Hibiscus petals, Moringa oleifera gymnosperm, and Nipa fruticans wurmb. Also, the possibility of their use as a functional cosmetic material and food were searched. Methods: We extracted Hibiscus petals, M. oleifera gymnosperm, and N. fruticans wurmb with water. And then, we measured the content of total polyphenols and flavonoids and the ability to scavenging free groups of ABTS and DPPH to study the antioxidant function. The toxicity of samples evaluated by measuring cell viability. Results: The polyphenol content of the water extract of N. fruticans wurmb was 109 ㎍/mg, which was significantly higher than that of Hibiscus petals (13 ㎍/mg) and M. oleifera gymnosperm (19 ㎍/mg). Radical scavenging ability was also excellent in N. fruticans wurmb, and the cytotoxicity test results of the samples were similar. Conclusions: The water extracts showed antioxidant activity to use for cosmetic materials or natural healing foodstuff.