• Title/Summary/Keyword: retarding culture

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The Manufacture of Inoculum for Fermented Pig Feed Production from Food Wastes (음식물류폐기물의 돼지 발효사료화를 위한 종모배양액 제조)

  • Lee, Kyung-Seok;Hong, Seung-Yoon;Kim, Young-Jun;Lee, Ki-Young
    • Journal of the Korea Organic Resources Recycling Association
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    • v.15 no.2
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    • pp.98-108
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    • 2007
  • In order to use food wastes for the source of fermented feed for pigs, this study was aimed to produce better culture inoculum by the aeration and addition of pig' s blood meal as sub nutrient. For the preparation of inoculum as bacterial strain, Lactobacillus brevis isolated from pig intestine, and a yeast Saccharomyces cerevisiae from strawberries were used. Molasses and whey were used as main ingredients for the culture solution as well as yeast extract and other ingredients as sub nutrients. As the experimental result, aeration showed a positive effect to enhance viable cell count or retarding death phase. Although sub nutrient yeast extracts were replaced with pig's blood meal, fermentation characteristics were almost similar to that of yeast extract. When the inoculum was stored at room temperature, L. brevis and S. cerevisiae maintained the viable cell concentration of approximately 8 log cfu/mL for 1 week. 2 Days after the culture solution was mixed with food waste, the number of unwanted bacteria had rapidly increased, but E.coli was not detected for 5 days.

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Raising Seedling at Hallasan Area of Sub-Alpine Improved Fruiting Rate of Squash (Cucurbita maxima) (단호박 착과율 향상을 위한 한라산 중산간지 육묘효과)

  • Seong, Ki-Cheol;Kim, Chun-Hwan;Lee, Jin-Soo;Kim, Doo-Seob;Um, Yeong-Cheol
    • Journal of Bio-Environment Control
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    • v.15 no.4
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    • pp.385-389
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    • 2006
  • This study was carried out to determine the effect of raising seedling at Hallasan area of sub-alpine (altitude of 600m above sea level) to improve fruiting.ate of Squash (Cucurbita maxima) in retarding culture. 'Ebis' cultivar was seeded in plug tray of 32 cells and the seedlings were grown for 25 days. They were transplanted on August 26, 2004, following L-stem training method under rain-shielding condition. Seedling height, number of nodes and leaf area were higher in lowland than in sub-alpine area. T/R ratio of seedling in sub-alpine was much lower as compared with that in the lowland. The first fruiting was on the 19th node in sub-alpine area, and on the 26th node in the lowland area(control). The succeeding fruiting nodes were lower by 3 to 5 node than those of control. Fruiting rate of second flower was improved by 17.2% compared with the 1.4% in control. The marketable yield was increased by 27% by raising seedling in sub-alpine area (4,460 kg/10a). This also brought out 20% labour saving effect. The environmental condition for raising seedling in the sub-alpine area of Hallasan was effective for the improvement of Squash (Cucurbita maxima) fruiting rate compared with lowland area.

Effects of Culture fitrates of Fusarium oxysporum f. vasinfetium upon the germination of seeds of host plants (Sesame and Cotton) and noon-host(Wheat and rice) (참깨$\cdot$시들음병균(Fusarium oxysporun f. vasinfectum)의 배양여액이 기주식물 (참깨, 복화)과 비기주식물(밀, 벼)의 종자 발아에 미치는 영향)

  • CHOI Chang Yoel
    • Korean journal of applied entomology
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    • v.1
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    • pp.42-46
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    • 1962
  • 1) The purpcse of the present study is to investigate the effects of culture filtrates of Fuarsium oxysporum f. vasinfectum which is known to produce wilt toxin (fusaric acid) on the germination of host plants (sesame, cotton) and non-host plants (wheat, rice). 2) The experiment on the germination of sesame, cotton, wheat and rice seeds in the seed beds separately added with culture filtr ates of 10 differential strains of Fusarium oxysporom f. vasinfectum demonstrated that culture filtrates of most strains of the fungus inhibit or retard the germination of seeds of 4 plants used in this study while those of a few strains do not give notable influence on the germination of seeds of those plants. a) Culture filtrates of strain 201 of the fungus strongly inhibited the germination of seeds of those plants in nearly same degree, but culture filtrates of the other strains, 281, 321, etc., showed remarkable differences in the toxicity inhibiting or retarding the germination of the seeds of those plants. b) In general, sesame seeds are greatly susceptible, wheat and cotton seeds are moderately susceptible and rice seeds are resistant to the toxicity of culture filtrates of the fungus. 3) In the soil containing a number of differential strains of Fusarium oxysporum f. vasinfectum, the germination of seeds and also the growth of seedlings of non-host plants are possibly checked by the toxic substance, fusaric acid produced by the fungus.

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New Yellow Single Chrysanthemum 'My Sun' for Pot Plant (분화용 국화 노랑색 홑꽃 'My Sun' 육성)

  • Jung, Yun-Kyung;Lim, Jae-Wook;Lee, Sang-Deok
    • Horticultural Science & Technology
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    • v.30 no.3
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    • pp.325-328
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    • 2012
  • A new Dendranthema grandiflourm 'My Sun' was developed at Gyeonggi-do Agricultural Research & Extension Services (GARES), Korea in 2009. 'My Sun' was initially derived from the cross in 2005 between 'Omega Time Orange', a potted chrysanthemum cultivar with orange single type, and 'Tasman', a potted chrysanthemum cultivar with white single type in 2005. The cultivar has single type flowers with yellow petals. Trial and evaluation was conducted from 2006 to 2009 for the selection of this variety, including a shading culture in spring and a retarding culture in winter. The flowering time of 'My Sun' was October 13th, and year-round flowering is possible by shading or lighting treatment. The diameter of flower is 21.0 mm. Numbers of flowers per stem and petals per flower are 34.4 and 20.4, respectively. Its leaf color was green (Green Group 137A) and plant height was 13.3 cm. Days to flowering under the short day treatment is about 42 in spring, and numbers of branch per plant was 3.4 ea in the winter. This cultivar was resistance to white rust and consumer's preference of new pot-mum is high level than control.

Variation of Iron Content and Ferritin Distribution during Development Stage under Conditions of Iron Nutritional Status from Hydroponic Culture in Red Pepper ( Capsicum annuum L. )

  • Kim, Young-Ho;Lee, Young-Ok;Nou, Ill-Sup;Shin, Ill-Yong;Kameya, Toshiaki;Saito, Takashi;Kang, Kown-Kyoo
    • Plant Resources
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    • v.1 no.1
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    • pp.1-5
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    • 1998
  • Total iron content and ferritin distribution have been determined in red pepper(Capsicum annuum L.) during development stage under conditions of iron nutritional status from hydroponic culture. Color of the leaves become chlorotic on iron deficient and high concentration. The plant height on each iron concentration had retarding effect at concentration lower than $25\muM$ and greater than 125$25\muM$. In normal green leaves. Total iron content was almost constant with a mean value of $2.5\mumole$ of iron/mg of dry matter, except at 63day, for which it increases slightly to $4\mumole$. Howere, iron content of chlorotic plants grew on iron free medium was not almost detectable. Also in post chlorotic leaves(++Fe), iron content was evidently increase unitl 7days after transfer on liquid medium, but decreased from after 14days. Also, ferritin protein analysed total protein extracts prepared from leaves of different ages using antibodies raised against ferritin protein. Ferritin protein deereased progressively during the first week of germination and was not detectable in vegetative tissues. Ferritin protein in post chlorotic leaves wasevidently strongly cnhanced until 11days after transfer on liquid medium but decreased until the leves became chlorotic.

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A New Flowering, Spray Chrysanthemum Cultivar for Cut Flower, "Golden Eye" with Single Type and Light Yellow Petals of Muti-Flower (다화성의 선명한 황색 홑꽃 절화용 스프레이국화 "골든아이" 육성)

  • Hwang, Ju Chean;Chin, Young Don;Chung, Young Mon;Kim, Su Kyeong
    • Korean Journal of Breeding Science
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    • v.41 no.4
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    • pp.560-563
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    • 2009
  • A new spray chrysanthemum(Dendranthema grandiflorum) cultivar, "Golden Eye" was developed from a cross between "Rosa" and "Angaesoguk" 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 "Golden Eye" was October 23th, and year-round production was possible by day length treatment. This cultivar was yellow in color, single in flower type for the spray type cut flower. Its capitulum was 2.4cm in diameter, and had 23.2 head per stem in autumn. Its ray floret was green central zone. The days to flowering under the short day treatment is about 49 days in spring season, and "Golden Eye" showed the vase life of 25.7 days in autumn. This cultivar was registered for a commercialization in 2008.

A New Spray Chrysanthemum Cultivar, 'Noble Wine' with Good Color, Single Type and Bi-color Petals for Cut Flower (화색이 우수한 복색 홑꽃 스프레이국화 'Noble Wine' 육성)

  • Hwang, Ju Chean;Chin, Young Don;Chung, Yong Mo;Kim, Su Gyeong;Jeong, Byoung Ryong
    • FLOWER RESEARCH JOURNAL
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    • v.17 no.2
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    • pp.137-140
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    • 2009
  • A new spary chrysanthemum(Dendranthema grandiflorum) cultivar 'Noble Wine' was developed from a cross between 'SL03-01' and 'Artist Pink' by selection of seedlings and lines at the Flower Research Institute, Gyeongnam Agricultural Research and Extention Services(ARES) from 2003 to 2007. Its characteristics were investigated three times from 2005 to 2007 under condition of forcing culture in spring and retarding culture in autumn. The natural flowering time of 'Noble Wine' was October 26th, and yearround production was possible by day length treatment. Its capitulum was 5.4 cm in diameter, and had 21.6 ray florets and 28.5 head per stem in autumn. Its ray floret was red-purple with green central zone. 'Noble Wine' was about 45 days in spring, and 'Noble Wine' showed the vase life of 21.3 days in autumn. This cultivar was registered for a commercialization in 2007.

A New Early Flowering, Spray Chrysanthemum Cultivar for Cut Flower, 'Biz' with Single Type and White Petals. (조기개화성의 백색 홑꽃 절화용 스프레이국화 '비즈' 육성)

  • Hwang, Ju Chean;Chin, Young Don;Chung, Young Mon;Kim, Su Kyeong;Ro, Chi Woong
    • FLOWER RESEARCH JOURNAL
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    • v.18 no.4
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    • pp.295-298
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    • 2010
  • A new spray chrysanthemum(Dendranthema grandiflorum) cultivar, 'Biz' was developed from a cross between 'S03-117' and 'Angaesoguk' by selection of seedlings and lines at the Flower Research Institute, Gyeongnam Agricultural Research and Extension Services(ARES) from 2003 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 'Biz' was October 26th, and year-round production was possible by day length treatment. This cultivar was white in color, single in flower type for the spray type cut flower. Its capitulum was 3.0 cm in diameter, and had 15.6 head per stem in autumn. Its ray floret was green central zone. The days to flowering under the short day treatment is about 42 days in spring season, and 'Biz' showed the vase life of 24.1 days in autumn. This cultivar was registered for a commercialization in 2008.

A New Spray Chrysanthemum Cultivar, 'Magic' with Bright Color, Vigorous, Single Type and Bi-color Petals for Cut Flower (선명한 화색과 초세가 우수한 복색 홑꽃 스프레이국화 'Magic' 육성)

  • Hwang, Ju Chean;Chin, Young Don;Chung, Yong Mo;Kim, Su Gyeong;Ro, Chi Woong;Jeong, Byoung Ryong
    • FLOWER RESEARCH JOURNAL
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    • v.18 no.3
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    • pp.211-215
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    • 2010
  • A new spray chrysanthemum(Dendranthema grandiflorum) cultivar 'Magic' was developed from a cross combination between 'Artist Pink' and 'SP0347' by selection of seedlings and lines at the Flower Research Institute, Gyeongnam Agricultural Research and Extension Services(ARES) from 2003 to 2007. Its characteristics were investigated three times from 2005 to 2007 under condition of forcing culture in spring and retarding culture in autumn. The natural flowering time of 'Magic' was October 26th, and year-round production was possible by day length treatment. Its capitulum was 6.1 cm in diameter, and had 31.9 ray florets and 11.7 head per stem in autumn. Its ray floret was white-purple with yellow green central zone. Days to flower of 'Magic' was about 43 days in spring, and 'Magic' showed the vase life of 20.6 days in autumn. This cultivar was registered for a commercialization in 2007.

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.