• Title/Summary/Keyword: stem culture

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A New Spray Chrysanthemum Cultivar, 'Moulin Rouge' with Bi-color and Single Petals for Cut Flower (절화용 복색 홑꽃 스프레이국화 'Moulin Rouge' 육성)

  • Hwang, Ju Chean;Chin, Young Don;Chung, Yong Mo;Park, Young Bae;Kim, Su Gyeong;Jeong, Byoung Ryong
    • FLOWER RESEARCH JOURNAL
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    • v.16 no.4
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    • pp.229-233
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    • 2008
  • A new spary chrysanthemum(Dendranthema grandiflorum) cultivar 'Moulin Rouge' was developed from a cross between 'Delmont' and 'Anjela' by selections of seedlings and lines at the Flower Research Institute, Gyeongnam Agricultural Research and Extension Services(ARES) from 2002 to 2006. Its characteristics were investigated three times from 2004 to 2006 under condition of forcing culture in spring and retarding culture in autumn. The natural flowering time of 'Moulin Rouge' was October 24th, and year-round production was possible by day length treatment. Its capitulum was 5.3 cm in diameter, and had 22.9 ray florets and 12.2 head per stem in autumn. Its ray floret was bi-color(yellow/orange) with green central zone. 'Moulin Rouge' was about 55 days to flower in spring, and showed the vase life of 21.7 days in autumn. This cultivar was registered for a commercialization in 2007.

A New Spray Chrysanthemum Cultivar, 'Serapina' with Good Shape, Single Type and Yellow Petals for Cut Flower (화형, 화색이 우수한 황색 홑꽃 스프레이국화 '세라피나' 육성)

  • Hwang, Ju Chean;Chin, Young Don;Chung, Yong Mo;Park, Young Bae;Kim, Su Gyeong;Jeong, Byoung Ryong
    • FLOWER RESEARCH JOURNAL
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    • v.16 no.3
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    • pp.200-204
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    • 2008
  • A new spary chrysanthemum(Dendranthema grandiflorum) cultivar 'Serapina' was developed from a cross between 'Relanse' and 'Yen' by selection of seedlings and lines at the Flower Research Institute, Gyeongnam Agricultural Research and Extention Services(ARES) from 2002 to 2006. Its characteristics were investigated three times from 2004 to 2006 under condition of forcing culture in spring and retarding culture in autumn. The natural flowering time of 'Serapina' was October 23th, and year-round production was possible by day length treatment. Its capitulum was 2.8cm in diameter, and had 43.4 ray florets and 28.9 head per stem in autumn. Its ray floret was yellow with green central zone. To flower in the short day condition, for 'Serapina' was about 46 days in spring, and 'Serapina' showed the vase life of 21.7 days in autumn. This cultivar was registered for a commercialization in 2007.

A New Early Flowering, Spray Chrysanthemum Cultivar for Cut Flower, "Green witch" with Pompon Type and Green Petals (조기개화성의 녹색 폼폰형 절화용 스프레이국화 "그린위치" 육성)

  • Hwang, Ju Chean;Chin, Young Don;Kim, Jin Ki;Kim, Su Kyeong
    • Korean Journal of Breeding Science
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    • v.41 no.4
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    • pp.529-533
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    • 2009
  • A new spray chrysanthemum (Dendranthema grandiflorum) cultivar "Green Witch" was developed from a cross between 'S04161' and 'S04109' by selection of seedlings and lines at the Flower Research Institute, Gyeongnam Agricultural Research and Extension Services (ARES) from 2004 to 2008. Its characteristics were investigated three times from 2006 to 2008 under condition of forcing culture in spring and retarding culture in autumn. The natural flowering time of "Green Witch" was October 19th, and year-round production was possible by day length treatment. Its capitulum was 3.2cm in diameter, and had 15.9 head per stem in autumn. Its ray floret was green central zone. To flower in the short day condition, for "Green Witch" was about 44 days in spring, and "Green Witch" showed the vase life of 25.3 days in autumn. This cultivar was registered for a commercialization in 2008.

A New Multi-Flower, Spray Chrysanthemum Cultivar for Cut Flower, "Eye Ball" with Single Type and Light White Petals (선명한 백색의 절화용 다화성 홑꽃 스프레이국화 "아이볼" 육성)

  • Hwang, Ju-Chean;Chin, Young-Don;Kim, Jin-Ki;Kim, Su-Gyeong
    • Korean Journal of Breeding Science
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    • v.40 no.4
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    • pp.490-494
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    • 2008
  • A new spary chrysanthemum (Dendranthema grandiflorum) cultivar 'Eye Ball' was developed from a cross between 'Rima' and 'Yen' followed by selections of seedlings and lines at the Flower Rearch Institute, Gyeongnam Agricultural Research and Extension Services (ARES) from 2002 to 2006. Its characteristics were investigated three times from 2004 to 2006 under forcing culture in spring and retarding culture in autumn. The natural flowering time of 'Eye Ball' was October 20th, but year-round production was possible by shading and lighting. Its flower was 3.1cm in diameter, and had 38.4 petals and 26.8 flowers per stem in autumn. Its petal was narrow (0.4 cm) and pink with green in color at the flower center. To flower in the short day condition, for 'Eye Ball' was about 47 days in spring, and 'Eye Ball' showed a vase life of 20.9 days in autumn. This cultivar was registered for a commercialization in 2007. 'Eye Ball' would be cultured under the greenhouse and rain shelter condition in Korea.

Bifidobacterium bifidum DS0908 and Bifidobacterium longum DS0950 Culture-Supernatants Ameliorate Obesity-Related Characteristics in Mice with High-Fat Diet-Induced Obesity

  • M. Shamim Rahman;Youri Lee;Doo-Sang Park;Yong-Sik Kim
    • Journal of Microbiology and Biotechnology
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    • v.33 no.1
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    • pp.96-105
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    • 2023
  • Probiotic supplements have promising therapeutic effects on chronic diseases. In this study, we demonstrated the anti-obesity effects of two potential probiotics, Bifidobacterium bifidum DS0908 (DS0908) and Bifidobacterium longum DS0950 (DS0950). Treatment with DS0908 and DS0950 postbiotics significantly induced the expression of the brown adipocyte-specific markers UCP1, PPARγ, PGC1α, PRDM16 and beige adipocyte-specific markers CD137, FGF21, P2RX5, and COX2 in C3H10T1/2 mesenchymal stem cells (MSCs). In mice with high-fat diet (HFD)-induced obesity, both potential probiotics and postbiotics noticeably reduced body weight and epididymal fat accumulation without affecting food intake. DS0908 and DS0950 also improved insulin sensitivity and glucose use in mice with HFD-induced obesity. In addition, DS0908 and DS0950 improved the plasma lipid profile, proved by reduced triglyceride, low-density lipoprotein, and cholesterol levels. Furthermore, DS0908 and DS0950 improved mitochondrial respiratory function, confirmed by the high expression of oxidative phosphorylation proteins, during thermogenesis induction in the visceral and epididymal fat in mice with HFD-induced obesity. Notably, the physiological and metabolic changes were more significant after treatment with potential probiotic culture-supernatants than those with the bacterial pellet. Finally, gene knockdown and co-treatment with inhibitor-mediated mechanistic analyses showed that both DS0908 and DS0950 exerted anti-obesity-related effects via the PKA/p38 MAPK signaling activation in C3H10T1/2 MSCs. Our observations suggest that DS0908 and DS0950 could potentially alleviate obesity as dietary supplements.

Mycelial growth and fruit body cultural characteristics of a new Pleurotus ostreatus variety 'Daeseon' (느타리 신품종 '대선'의 균사배양 및 자실체 생육 특성)

  • Chae-Young Lee;Jong-In Choi;Jeong-Han Kim;Yeon-Jin Kim
    • Journal of Mushroom
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    • v.22 no.3
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    • pp.117-121
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    • 2024
  • The oyster mushrooms have known to be a major product in Gyeonggi-do, with production accounting for 69% of the entire country. The 'Daeseon' cultivar, which has white and straight stem, was developed. This cultivar was developed by mating monokaryons isolated from the 'Heuktari' and 'Hwaseong-2ho' varieties. The optimum temperature for the mycelial growth was 26~32℃ on PDA medium and that for the primordia formation and the growth of fruit body of 'Daeseon' was 16~20℃ on sawdust media. It took 35 days to complete spawn running, 3 days for finish primordia formation, and 4 days for finish fruit body growth in the bottle culture. It has shallow funnel-shaped pileus and a white straight stipe. The yield per bottle was 201 g/1,100 ml and was 16% higher than that of control cultivar 'Suhan-1ho'. Based on above results, we expect this cultivar to be suitable for small packaging.

Management of Nutrient Solution Based on $\textrm{NH}_4\textrm{H}_2\textrm{PO}_4$Concentration in Deep Flow Culture of Cherry Tomato (방울토마토 담액재배시 $\textrm{NH}_4\textrm{H}_2\textrm{PO}_4$ 농도에 기초한 배양액 조절)

  • 이문정;김성은;김영식
    • Journal of Bio-Environment Control
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    • v.4 no.2
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    • pp.188-194
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    • 1995
  • This study was carried out to investigate the effect of NH$_4$H$_2$PO$_4$ on pH stabilization in deep flow culture system using tap water, and to determine the optimum range of NH$_4$H$_2$PO$_4$ in culture solution. The pH of tap water is 7.5. The higher the concentration of NH$_4$H$_2$PO$_4$ was, the more the pH of nutrient solution was decreased. In NH$_4$H$_2$PO$_4$ 4/3-5/3 me/$\ell$, the pH of nutrient solution was 6-7.5 during the experiment. The highest brix(%) was obtained in NH$_4$H$_2$PO$_4$ 5/3-6/3 me/$\ell$. Leaf length, leaf width and stem-base diameter were highest in NH$_4$H$_2$PO$_4$ 2/3 me/$\ell$. The L and b* values were highest and the a* value was lowest in NH$_4$H$_2$PO$_4$ 8/3 me/$\ell$. Toxicity symptom of ammonium appeared in NH$_4$H$_2$PO$_4$ 8/3 me/$\ell$. It suggests that there was the relationship between leaf color and growth condition. It was concluded that NH$_4$H$_2$PO$_4$ 2/3 me/$\ell$ was good before harvest stage and NH$_4$H$_2$PO$_4$ 5/3-6/3 me/$\ell$ at harvest stage.

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Effects of the Different Substrates on the Plant Growth and Mineral Contents of Campanula takesimana in Water Culture (배지종류가 추식 수경재배 섬초롱꽃의 생장과 무기성분 함량에 미치는 영향)

  • Cho, Ja-Yong;Kim, Hong-Gi;Yang, Seung-Yul;Son, Dong-Mo;Jang, Hong-Gi;Heo, Buk-Gu;Kim, Chul-Soo
    • Journal of Bio-Environment Control
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    • v.16 no.3
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    • pp.228-232
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    • 2007
  • We have also clarified the effects of the different substrates; (perlite, peatmoss and granular rock-wool) on the plant growth and the mineral contents of Campanula takesimana until 70 days after transplanting. Overall plant growth in terms of plant height, stem diameter, number of leaves, root length, fresh and dry weight of shoot and root were increased in the order of that mixed perlite and peat moss (50 : 50, v/v)>peat moss (100%)>perlite (100%)>granular rock wool (100%). Mineral contents in plants were much more in the order of potassium $(15.38-43.91cmol^+/kg)$, calcium $(5.48-7.78cmol^+/kg)$, magnesium $(4.38-6.55cmol^+/kg)$ and sodium $(1.25-1.69cmol^+/kg)$. The higher mineral contents of plants were also most made in the mixed substrates of perlite and peat moss (50 : 50, v/v).

Effects of the Different Substrates on the Plant Growth and Mineral Contents of Hydroponically Grown Plantago asiatica in Aggregate Culture (배지종류가 추식 수경재배 질경이의 생장과 무기성분 함량에 미치는 영향)

  • Cho, Ja-Yong;Kim, Hong-Gi;Yu, Sung-Oh;Yang, Seung-Yul;Yang, Won-Mo;Kim, Byoung-Woo;Heo, Buk-Gu
    • Journal of Bio-Environment Control
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    • v.16 no.1
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    • pp.40-46
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    • 2007
  • This study was conducted to clarify the effects of the different substrates in terms of perlite (100%), peat moss (100%), granular rock wool (100%) and mixing perlite (50%) with peat moss (50%) on the growth responses and mineral contents of hydroponically grown Plantago asiatic in aggregate culture. Overall early plant growth such as plant height, stem diameter, number of leaves, root length, fresh and dry weight of shoot and root were increased in the order of that miked perlite and peat moss (50%:50%, v/v)>peat moss (100%)>granular rock wool (100%)>perlite (100%). Ca and Mg contents in plants became highest in the plants grown in the peat moss, however, Mg and Na in the granular rock wool. $P_2O_5$ content in plants were most increased in proportion to the plant growth increment in the peat moss (100%) and the mixing substrates of perlite and peat moss (50:50, v/v).

Effects of Soil Moisture Control and Truss Limited High Density Culture on the Growth and Yield of Tomato(Lycopersicon esculentum Mill. cv. Momotaroyork) (토양수분조절과 저단밀식재배가 토마토의 생육 및 수량에 미치는 영향)

  • Kim, Gi-Don;Yoon, Wha-Mo
    • The Journal of Natural Sciences
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    • v.14 no.2
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    • pp.103-114
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    • 2004
  • This study aims at investigating the effect of soil moisture control and truss limited high density culture on the growth, fruit yield and quality of tomato. To minimize of loss yield of tomato, flower cluster in number was limited to two and three truss and planting density was raised. Soil moisture control was started from 40 days after anthesis and irrigation point was set in -30kPa and -50kPa, which were compared with -10kPa For high density culture, the planting number of truss limited high density culture was planted twice as many as control. Soil moisture repression reduced the growth of stem diameter, leaf and plant height. Leaf chlorophyll content was higher in -50kPa and -30kPa than control. No significant differences, however, shows in -10kPa. The occurrence rate of bloom-end rot and cracking was increased by growing of irrigation repression. Pinching three fruit truss was higher than pinching two fruit truss in the occurrence rate of them. Soil moisture repression resulted in the reduction of fruit weight and in special, truss limited high density was distinctly decreased in -50kPa. The number of fruit was not affected by soil moisture control, but 3rd flower cluster was lower than 2nd flower cluster in the number of fruits and 2nd one was lower than 1st one. Under irrigation repression, rate of dry matter tended to grow in -30kPa, -50kPa compared with control and pinching three fruit truss was higher than two truss. Marketable yield dropped to 36.7%m 46.3 in -30kPa, -50kPa on pinching two fruit truss and dropped to 27.3%, 32.3% in 3rd flower cluster compared with control.

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