• Title/Summary/Keyword: 2원교배

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Breeding of a Pink Rose Cultivar 'Noble Eye' with Few Prickles for Cut Flower (가시가 적은 분홍색 장미 '노블아이' 육성)

  • Gi, Gwang-Yeon;Hwang, In-Taek;Cho, Kyung-Chul;Yun, Bong-Ki;Choi, Kyong-Ju;Lee, Jae-Sin;Han, Tae-Ho
    • FLOWER RESEARCH JOURNAL
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    • v.18 no.4
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    • pp.299-302
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    • 2010
  • A new standard pink rose cultivar 'Noble Eye' was bred from the cross between pink standard cultivar 'Noblesse' and pink standard cultivar 'Pretty Woman' at the Jeollanamdo Agricultural Research and Extension Services (JARES). The cross was made in 2003 and, 'Noble Eye' was finally selected in 2009 after investigating characteristics for three times from 2006 to 2009. 'Noble Eye' a pink standard cultivar has good flower shape with few prickles. The major characteristics of this cultivar was $125.7stems/m^2/year$ in yield. 69.8 cm in length of cut flower, 6.6 cm in flower diameter, 40.5 in petal number, and 9.4 days in vase life. This cultivar can be propagated by both cutting and grafting. The consumer's preference of this cultivar was relatively higher than that of control cultivar, 'Noblesse'.

Effects of Shading Rate, Rooting Media and Plant Growth Regulators on Rooting of Veronoca L. by Cuttings (삽목 번식 시 차광정도, 삽목용토 및 생장조절제 처리가 꼬리풀(Veronica L.)의 발근에 미치는 영향)

  • Cheon Young, Song;Ja Young, Moon;Jung Won, Sung;Byeong Seon, Park;Jae Ik, Nam;Jeong Min, Kim
    • Journal of Practical Agriculture & Fisheries Research
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    • v.24 no.4
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    • pp.35-44
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    • 2022
  • This study was conducted to develop a mass production for a commercial use by cutting of 4 kinds of V. glabrifolia Kitag., V. pusanensis Y.N.Lee, V. glabrifolia Kitag. × V. Spicata 'Alba' and V. spicata 'Ulster Blue Dwarf' × V. longifolia. Veronica L. Effects of shade, media and concentrations of plant growth regulators on the rooting of Veronica L. were examined. The rooting rate of V. glabrifolia Kitag. was higher as a 60% than the V. pusanensis Y.N.Lee as a 20% in the control of commercial media. In shading treatment, the rooting rate was highest at 30% or 60% shading, and the 30% shading was the best in number of root and root length, but the 90% shading was lower than no shading treatment. For cutting media, the rock wool and 100% perlite increased the rooting rate by more than 10% compared to commercial media, and increased the number of roots by 2 or 3 times. However the Cocopeat of media was lower of rooting rate, root number, and root length compared to another treatment. In the plant growth regulator treatment, the rate of rooting increased in all treatment compared to control, and was highest at IBA 1,000mg·L-1 as a 82.2% and NAA 200 or 400mg·L-1 as a 82.2% or 84.4% respectively, in the V. glabrifolia Kitag. × V. Spicata 'Alba'. However, the root number and root length was decreased as the concentration of growth regulators increased.

A New Standard Rose Cultivar, 'Redme' with Red Color Petals (대륜계 적색 장미 신품종 '레드미' 육성)

  • Kim, Jin Ki;An, Dong Choon;Kim, Su Kycong;Been, Chul Gu;Park, Young Bae;Kim, Zhoo Hyeon
    • Korean Journal of Breeding Science
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    • v.40 no.3
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    • pp.348-351
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    • 2008
  • New bicolor standard rose (Rose hybrida Hort.) cultivars was developed in the Flower Research Institute, Gyeongnam ARES after going through seeding and line selection in 2000, and their characteristics were examined three times from 2003 to 2006, 'Redme' was crossed between 'Violina' and 'Akito' and it had a red Petals of a red-group (RHS No. 46A), few thorns and standard large flowers with a good harmony between ray and flower center Petals. The vase life of cut flower was 10 days. Registered as a commercial cultivars in 2006, the new cultivar can be planted in most greenhouse production region of Korea.

A New Rose Variety, "Waltz" with Resistance to the Powdery Mildew (흰가루병에 강한 장미 신품종 "왈츠" 육성)

  • Lee, Young Soon;Lee, Sang Deok;Jeoung, Yun-Kyeoung;Kim, Soon Jae
    • Korean Journal of Breeding Science
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    • v.40 no.3
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    • pp.299-302
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    • 2008
  • A new rose variety, was selected from the progenies of a cross between "Cosai" and "Tokimeky" in 2006 after evaluation trials for three years (2004-2006). "Waltz" was developed because of many petals and powdery mildew resistance. A standard type with large sized flower, "Waltz" shows in 11.0 cm flower diameter. "Waltz" produces 130 stems?m-2 in a year. It has red-white color flower and 49.6 petals per flower. The stem length of cut flower was long with 69.3 cm. Vase life of the variety could be as long as 9.6 days.

A New Euphorbia Cultivar 'Panorama' with Green and Pink Colored Bract (녹색과 분홍색의 포를 가진 다육식물 꽃기린 신품종 '파노라마' 육성)

  • Park, Heung-Bae;Nam, Sang-Yong;Chung, Jae-Woon;Lee, Jung-Jin;Park, In-Tae
    • Korean Journal of Breeding Science
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    • v.42 no.6
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    • pp.717-720
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    • 2010
  • A new cultivar of Euphorbia milii, 'Panorama' was developed at Cactus Research Institute, Gyeonggi-do Agricultural Research & Extension Services in 2009. 'Gabi' and 'Maxi' were crossed in 2001 and three $F_1$ seedlings were obtained. Pedigree selection was performed in 2002. One line was finally selected and named as 'Panorama' through the test of specific character from 2007 to 2009. The new cultivar 'Panorama' has green and pink colored bract, and it has 2~3 each of inflorescence number, 2.0 cm of bract width, 4.3 each of lateral shoot and 14.9 cm of plant height. Characters of the cultivar can be maintained by vegetative propagation.

Induction of A Chromosome-doubled Persimmon (Diospyros kaki Thunb.) by in vitro Colchicine Treatment (기내 콜히친 처리에 의한 염색체 배가 감 식물체 유기)

  • Ma, Kyeong-Bok;Cho, Kwang-Sik;Jung, Hae-Won;Seo, Ho-Jin;Kang, Sam-Seok
    • Korean Journal of Plant Resources
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    • v.31 no.5
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    • pp.515-521
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    • 2018
  • This was carried out to develop a chromosome-doubled (12x) persimmon that will be used as a crossing parent to select seedless persimmon cultivars with the change of the consumption trend recently. To obtain a chromosome-doubled (12x) persimmon, colchicine was applied at the meristem of seedlings in vitro derived from cross among hexaploid persimmon (Diopyros kaki Thunb.). These were treated with 0.03%, 0.05% and 0.1% colchicine respectively for doubling chromosome, and it was most effective at the concentration of 0.05% colchicine. After colchicine treatment, we conducted tests to elucidate conditions for inducing shoot and root development. As the result, the shoots grew best when cultivated at 1/2MS media plus 10 and $30{\mu}M$ zeatin respectively, and the roots grew best when cultivated at 1/2MS media after dipping for 5 seconds at 10 mM NAA+5% DMSO. We also compared seedlings that have chromosome (6x) do not doubled and crossing parents (6x) and chromosome-doubled seedlings (12x). As the result, these chromosome-doubled seedlings (12x) showed lower stomatal density and larger stomatal size.

A New High-yielding Rice Variety 'Hwaweon 7' with Lodging Tolerance (벼 도복저항성 다수성 신품종 '화원7호')

  • Kim, Dong-Min;Kang, Ju-Won;Yun, Yeo-Tae;Lee, Hyun-Sook;Park, In-Kyu;Ahn, Sang-Nag
    • Korean Journal of Breeding Science
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    • v.49 no.3
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    • pp.250-255
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    • 2017
  • 'Hwaweon 7' was developed from a cross between the African upland cultivar, 'Moroberekan' and 'Ilpumbyeo' based on marker-aided backcross selection. The recurrent parent, Ilpumbyeo is a high grain quality cultivar with medium to late maturity. Hwaweon 7 is nearly isogenic to Ilpumbyeo except a small Moroberekan introgressed segment on chromosome 6 harboring genes related with spikelets per panicle and internode diameter. The preliminary and replicated yield trial was conducted at Chungnam National University and Chungcheongnamdo Agricultural Research & Extension (CARES), Yesan in 2010 and 2011. The local adaptability test was carried out by the National Seed Management Office (NSMO) in 2012 and 2013. This cultivar was registered to NSMO with a cultivar designated as "Hwaweon7". This cultivar averaged 80cm in culm length and has a medium growth duration. Milled rice of "Hwaweon7" is translucent and the grain quality traits are comparable to those of the recurrent parent. The average yield potential of Hwaweon 7 in grain was about 6.48 MT/ha at the ordinary fertilizer level for two years about 5.1% higher than that of Ilpumbyeo due to increase in spikelets per panicle. This variety is tolerant to lodging and the tolerance is due to the APO1 gene controlling the base internode diameter on chromosome 6 introgressed from the donor parent, Moroberekan. The Apo1 gene would be useful in enhancing resistance to lodging in rice breeding program.

A New High-yielding Rice Variety developed from an Interspecific cross, 'Hwaweon 6' (벼 중생 다수성 중간모본 '화원6호')

  • Kang, Ju-Won;Kim, Dong-Min;Yun, Yeo-Tae;Lee, Hyun-Sook;Park, In-Kyu;Ahn, Sang-Nag
    • Korean Journal of Breeding Science
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    • v.49 no.3
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    • pp.280-284
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    • 2017
  • 'Hwaweon 6' was developed from a cross between 'Hwaseongbyeo' and a wild species, Oryza minuta L. (Acc. No. 101154) based on marker-assisted selection and backcrossing. The recurrent parent 'Hwaseongbyeo' is a high grain quality cultivar with medium maturity. Hwaweon 6 is nearly isogenic to Hwaseongbyeo except a small O. minuta introgressed segment on chromosome 7 harboring genes related with spikelets per panicle. The preliminary and replicated yield trial was conducted at Chungnam National University and Chungcheongnamdo Agricultural Research & Extension (CARES), Yesan in 2009 and 2010. The local adaptability test was carried out by the National Seed Management Office (NSMO) in 2011 and 2012. This cultivar was registered to NSMO with a cultivar designated as Hwaweon 6. This cultivar averaged 80cm in culm length and has a medium growth duration. Milled rice of Hwaweon 6 is translucent and the grain quality traits are comparable to those of the recurrent parent. The average yield potential of Hwaweon 6 in grain was about 6.57 MT/ha at the ordinary fertilizer level for two years about 3.0% higher than that of Hwaseongbyeo due to an introgression of the quantitative trait locus (QTL) for spikelets per panicle (qSPP7) from O. minuta. This variety is comparable to Hwaseongbyeo in low temperature germinability and cold tolerance. The qSPP7 QTL would be useful in enhancing yield potential in rice breeding program.

A New Soy-paste Soybean Cultivar, 'Daeyang' with Disease Resistance, Large Seed and High Yielding (장류용 내병 대립 다수성 신품종 '대양')

  • Kim, Hyun-Tae;Baek, In-Youl;Han, Won-Young;Ko, Jong-Min;Park, Keum-Yong;Oh, Ki-Won;Yun, Hong-Tae;Moon, Jung-Kyung;Shin, Sang-Ouk;Kim, Sun-Lim;Oh, Young-Jin;Lee, Jong-Hyeong;Choi, Jae-Keun;Kim, Chang-Heung;Lee, Seung-Su;Jang, Young-Jik;Kim, Dong-Kwan;Son, Chang-Ki;Kang, Dal-Soon;Kim, Yong-Deuk
    • Korean Journal of Breeding Science
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    • v.42 no.6
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    • pp.690-694
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    • 2010
  • A new soybean cultivar for soy-paste, 'Daeyang', was developed from the cross among 'Jangyeobkong', 'Hwaeomputkong' and 'Suwon192' by the soybean breeding team at the National Institute of Crop Science (NICS) in 2007. A promising line, SS97214-80-1, was selected and named this line 'Milyang163'. It was prominent and had good result from regional adaptation yield trials (RYT) for three years from 2005 to 2007 and released as the name of 'Daeyang'. It has a determinate growth habit, purple flower, grey pubescence, yellow seed coat, yellow hilum, large spherical seed (25.2 g per 100 seeds). 'Daeyang' is resistant to soybean mosaic virus and moderately resistant to bacterial pustule, the major soybean disease in Korea. The average yield of 'Daeyang' was 2.58 ton per hectare in the regional yield trials (RYT) carried out for three years from 2005 to 2007 which was 3 percent higher than the check variety, 'Taekwang'.

A New Single Mini-gerbera 'Sun Cap' with Bi-color for Cut Flower (홑꽃 소륜 복색 절화용 거베라 '썬캡' 육성)

  • Chung, Yong-Mo;Hwang, Ju-Chean;Chin, Young-Don;Kim, Su-Kyeong;Ro, Chi-Woong;Yi, Young-Byung;Kwon, Oh-Chang
    • Horticultural Science & Technology
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    • v.29 no.1
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    • pp.77-80
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    • 2011
  • A new bi-color mini gerbera (Gerbera hybrida Hort.) 'Sun Cap' was developed from a cross of '99-ga-2' and '99-na-3-1' followed by seedling and line selections at the Flower Research Institute, Gyeongnam Agricultural Research and Extension Services (ARES) in 2007. Characteristic tests were conducted three times from 2004 to 2007. 'Sun Cap' has single type in good harmony with bi-color (Red/Yellow, RHS 45-B/9-A) ray floret and green center. It has good stable flower shape and strong peduncle. Its vase life was 13.5 days. The average yield of 'Sun Cap' was 102.6 flowers per plant a year in greenhouse. Yield trials were carried out from 2004 to 2007. This cultivar was registered for commercialization in 2009. 'Sun Cap' would be cultured under greenhouse condition in Korea.