• Title/Summary/Keyword: Forcing culture

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Breeding of New Cultivar 'Hongsil' in Forcing Culture of Strawberry for Export (수출용 촉성재배 딸기 신품종 '홍실' 육성)

  • An, Jae Uk;Jeong, Gyeong-Hui;Yoon, Hae Suk;Hwang, Yeon Hyeon;Hong, Kwang Pyo
    • Korean Journal of Plant Resources
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    • v.31 no.1
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    • pp.90-94
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    • 2018
  • The 'Hongsil' strawberry ($Fragaria{\times}ananassa$ Duch.) is a new cultivar released by Gyeongsangnam-do Agricultural Research & Extension Services in 2015. This cultivar originated from a 2011 cross between '802a312' and 'Okmae' and exhibited suitable fruit characteristics for export due to the high soluble solids content and firmness of the fruit. The breeding line '1116-74-15' was selected as an elite line after examining its characteristics and productivity from 2013 to 2014. A field trial of this line was conducted on a farm in 2015, and it was registered as 'Hongsil' thereafter. The 'Hongsil' strawberry demonstrates intermediate plant type and moderate vigor in growth. It is suitable for forcing culture due to its early flower bud differentiation and low chilling requirement. The soluble solids content of 'Hongsil' is $10.0^{\circ}Brix$, which is approximately $0.4^{\circ}Brix$ higher than that of 'Seolhyang' The Fruit firmness of 'Hongsil' is $13.1g{\cdot}mm^{-2}$, similar to that of 'Maehyang'. Fruits of 'Hongsil' are long conical having a red skin color and marketable yield is $4,269kg{\cdot}10a^{-1}$ which is 16% higher than that of 'Maehyang'. The 'Hongsil' cultivar is sensitive to powdery mildew, and it therefore warrants further investigation regarding disease control.

Comparison of Yield and Content of Salidroside with Application Rates of Nitrogenic Fertilizer under Forcing Culture of Rhodiola rosea L. (바위돌꽃(Rhodiola rosea L.)의 촉성재배시 질소 시비에 따른 수량과 Salidroside 함량)

  • Lee, Kang-Soo;Choi, Sun-Yeong;Li, Long-Gen;Hwang, Seon-Ah
    • Korean Journal of Medicinal Crop Science
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    • v.16 no.2
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    • pp.124-130
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    • 2008
  • This experiment was conducted to investigate the optimum nitrogen fertilization conditions for the production of high-quality Rhodiola rosea L. in forcing culture. Up until 48 kg N/10 a of both urea and ammonium sulfate, dry matter yield of root of Rhodiola rosea L. tended to increase with increase in application rates, however, it decreased thereafter in higher application rates. In the case of urea, the content of salidroside in the root of the Rhodiola rosea L. appeared to decrease rapidly from the application rates of 64 kg N/10 a and over. Meanwhile, the content of salidroside in the root tended to decrease gradually with the application rates exceeding 64 kg N/10 a of ammonium sulfate. The optimum fertilization rates of urea and ammonium sulfate was 45-8-20-10-10 (N-P-K-Ca-Mg) kg/10 a according to the curvilinear regression equation. However, considering the nitrogen accumulation in soil, nitrogen translocation into the plant, and dry matter yield and content of salidroside in the root of Rhodiola rosea L., the optimum fertilization rates of urea and ammonium sulfate would be 40-8-20-10-10 kg/10 a and 35-8-20-10-10 kg/10 a, respectively.

Effects of Raising Seeding by Cold Water, Low Night Temperature, and Using Abandoned Mine on Flower Bud Differentiation, Growth and Yield of Forcing Cultured Strawberry (Fragaria x ananassa Duch.) (냉수경, 야냉 및 폐광육묘가 촉성딸기의 화아분화와 생육 및 수량에 미치는 영향)

  • Kim, Woon-Seop;Yoon, Wha-Mo
    • The Journal of Natural Sciences
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    • v.8 no.1
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    • pp.71-80
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    • 1995
  • This experiment was conducted to investigate the effect of raising seedling methods of cold water, low night temperature, and abandoned mine on forcing culture of strawberry. The results were as follows ;1. $17^{\circ}C$ cold water alone and cold water plus 8-hour short day treatments significantly accelerated the flower bud differentiation of Nyoho cultivar to 11 and 15 days, respectively, comparing to common soil raising seedling.2. The date of flower bud differentiation of Nyoho cultivar as influenced by cold water treatment the 17th, the 13th and the 10th of September, respectively, when the seedlings were treated on the 10th of September and on the 25th and the 10th of August in 1991. In 1992, data showed that the flower bud differentiation dates were the 4th and the 2nd of September and the 29th of August when cold water treatment was done on the 10th of August and on the 25th and the 10th of July.3. The first harvest date when Nyoho cultivar was treated by cold water for 30days from Jul. 25 was Nov. 10, this implying that the harvesting day could advanced to 19 days comparing to that by the common soil raising seedling method. The resulting yield was recorded to 21.94 ton per hectare.4. Regardless of the starting date of the treatment, $13^{\circ}C$ low night temperature plus 8-plus short day treatments for 20 days required 17 days to differentiate the flower bud of Nyoho cultivar. Harvesting day could be advanced to 59 days comparing to that by the common raising seedling method when the seedling was treated on July 25, this resulting in increasing the total yield obtained by April 14 of following year to 8.25 ton per hectare.5. When the seedlings of both Nyoho and Hokowase cultivars were raised under the condition of abandoned mine, flowering and harvest date were earlier by the treatment for 20 days than that for 30 days or 40 days. The highest yiesd obtained was recorded in Nyoho cultivar or 1.88 ton per hectare.

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Effects of GA3, BA, Zeatin and Kinetin on Flowering of Oncidium 'Aloha' (온시디움 'Aloha'의 개화에 미치는 GA3, BA, Zeatin 및 Kinetin의 영향)

  • Lee, Jong-Suk;Park, Byoung-Mo;Park, Hark-Bong
    • Horticultural Science & Technology
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    • v.17 no.2
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    • pp.134-135
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    • 1999
  • In order to improve quality and to accelerate blooming time in potted Oncidium 'Aloha', foliar spray of $GA_3$, BA, zeatin, and kinetin were applied on June 1 and June 15. The plant growth regulators did affect the improvement of number of peduncles, pedicels and florets, and shortened flowering time. Especially, number of peduncles and of florets were remarkably increased by foliar application of BA solution. And the flower opening time were shortened 26 days by 100mg/L BA treatment compare with control.

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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.

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.