• Title/Summary/Keyword: Rose breeding

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A Standard Rose Cultivar, 'To Dios', with Numerous Peach-colored Petals (꽃잎 수가 많은 복숭아색 스탠다드 절화 장미 '투디오스' 육성)

  • Heo, Moon-Sun;Hwang, Soo-Kyung;Yoon, Jae-Soo;Kang, Byoung-Cheorl
    • 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.

A Standard Rose Cultivar 'Love Letter' with Thornless Stems and Red Colored Petals for Cut Flowers (무가시성 적색 절화장미 '러브레터' 육성)

  • Lee, Young Soon;Jung, Yun Kyung;Park, Mi Ok;Lim, Jae Wook
    • Horticultural Science & Technology
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    • v.32 no.2
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    • pp.269-275
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    • 2014
  • A standard rose cultivar, 'Love Letter' was selected for cut flower from the progenies of a cross between 'Red Giant' and 'Ensemble' by the rose breeding team of the Gyeonggi-do Agricultural Research & Extension Services (GARES) in 2011. A standard rose cultivar 'Red Giant' with red colored (RHS Red Group 45C) petals and 1.8 prickles per stems of 10 cm was used as a mother plant. A standard rose cultivar 'Ensemble' with white and red purple colored (RHS White Group 155C + RHS Red Group N57B) petals and 2.4 prickles per stems of 10 cm was used as a pollen parent. 'Love Letter' was crossed in 2007 and seedlings were produced. After tests of specific characters from 2008 to 2011, this cultivar was finally selected and named. As a standard type with large sized flower, it has red colored (RHS Red Group 46A) petals with 9.3 cm flower diameter and 32.4 petals per flower. Vase life of this cultivar could be as long as 12 days. It takes 43 days from pruning to blooming and cut flower productivity was 152 stems/$m^2$ in a year. The stems of cut flower have no thorn and the length is about with 70.5 cm. When this cultivar grew below $15^{\circ}C$ and 1,000 lux, the petals color became dark red in winter season. 'Love Letter' was registered as a new cultivar on Korea Seed & Variety Service (KSVS) with No. 4482 on May 8, 2013.

Breeding of a Red Rose Cultivar, 'Noble Red' with Good Color and Shape (화형과 화색이 우수한 적색 스탠다드 장미 '노블레드' 육성)

  • Kim, Won-Hee;Kim, Seung-Tae;Lee, Eun-Kyung;Lee, Su-Young
    • Korean Journal of Breeding Science
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    • v.42 no.3
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    • pp.280-283
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    • 2010
  • A new standard rose cultivar 'Noble Red' was bred by the cross between the pink standard cultivar 'Silba 87' and the red standard cultivar 'Bravo' at the National Institute of Horticultural and Herbal Science. The cross was made in 1999 and 'Noble Red' was finally selected in 2003 after investigating the characteristics such as flower Color, Fragrance, stem length, stem diameter, weight, and number of leaves for three years from 2001 to 2003. 'Noble Red', a red standard cultivar grows vigorously and has good flower shape. The major characteristics of this cultivar are $125stems/m^2/year$ in yield, 71.9 cm in length of cut flower, 6.0cm in flower diameter, 30.8 in petal number, and 9.2 days in vase life. This cultivar can be propagated by both cutting and grafting. The consumer's preference of this cultivar is relatively higher than that of control cultivar, 'Rote Rose'.

A New Rose Cultivar, 'Pretty You' with Vigorous Growth Habit (생육속도가 빠른 장미 신품종 '프리티유')

  • Lee, Young Soon;Jung, Yun Kyung;Lee, Sang Deok;Park, Mi Yok
    • Korean Journal of Breeding Science
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    • v.43 no.6
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    • pp.524-527
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    • 2011
  • A new rose cultivar, 'Pretty You' was selected from the progenies of a cross between 'Red Sandra' and 'Mira Bai' by rose breeding team of the Gyeonggi-Do Agricultural Research and Extension Services in 2008. 'Pretty You' was crossed in 2005 and seedlings were produced. After the test of specific characters from 2006 to 2008, it was finally selected and named. 'Pretty You' a stand type with large sized flower, has red and pink color (main color: Red Group 52B, second color: Red Group 50A) flower. 'Pretty You' grows vigorously, it took 45.8 days from pruning to blooming and cut flower productivity is $142.8stems/m^2$ in a year. The length of cut flower is 69.2 cm. It has 11.7 cm in flower diameter and 32.1 in petal numbers per flower. Vase life of the this cultivar can be as long as 12.3 days.

Seroprevalence of brucellosis in cattle in selected area of Bangladesh and comparison between Rose Bengal test and i-ELISA used for the screening of brucellosis

  • Rahman, Md. Siddiqur;Chakrabartty, Amitavo;Islam, Md. Taohidul;Sarker, Roma Rani;Alam, M.E.;Uddin, Muhammad Jasim;Akther, Laila;Song, Hee-Jong
    • Korean Journal of Veterinary Service
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    • v.35 no.2
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    • pp.133-137
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    • 2012
  • Brucellosis, a bacterial zoonoses caused by the genus Brucella is responsible for abortion and infertility in cow. Brucellosis is causing economic loss in dairy industries and prevalent worldwide including Bangladesh but limited studies are devoted to determine the prevalence and its association with reproductive factors of dairy cows in Bangladesh. Therefore, the present study was conducted to determine the seroprevalence of brucellosis in dairy cattle using screening test Rose Bengal test (RBT) and the positive sera were further confirmed by indirect- ELISA. For this purpose, a total of 400 serum samples from dairy cows with history of abortion and various reproductive disorders were collected from the Kurigram district of Bangladesh for the detection of Brucella antibody. The overall prevalence of brucellosis in dairy cattle was 2.25%. Brucellosis in cases of abortion and repeat breeding was 8.3% and 2.8%, respectively. The results shows higher prevalence of brucellosis in cases of abortion followed by repeat breeding, while there was no seropositive cases from other reproductive disorders. Age-wise sero-prevalence was found 3.0% in 2~3 years age group and 2.0% in 4~8 years age group. The prevalence of brucellosis in indigenous and cross-bred cattle was 3.6% and 1.7%, respectively. All the animals detected positive to brucellosis by RBT were not found to be positive by i-ELISA. However, the RBT might be a suitable screening test for the diagnosis of Brucella infection in field condition in Bangladesh. These data will help to develop effective disease prevention strategies.

A New Gerbera Variety "Red Line"; High-yielding Cultivar with Red and Semi-double for Cut-flower (적색 대륜 반겹꽃 절화용 다수성 거베라 신품종 "레드라인")

  • Park, Sang Kun;Lim, Jin Hee;Shin, Hak Ki;Kim, Mi Seon;Joung, Hyang Young;Cho, Hae Ryong;Rhee, Hye Kyung
    • Korean Journal of Breeding Science
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    • v.41 no.4
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    • pp.591-594
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    • 2009
  • A new gerbera variety "Red Line" was released by the National Institute of Horticultural & Herbal Science (NIHHS) in 2008. A cross was made between "Mirage" with orange and double and "Rose" with red and semi-double in 2005. After investigation of the characteristics for four years (from 2005 to 2008), it was selected specially for the use of cut flower. "Red Line" is a vigorous cultivar with red (RHS R44B), black center and semi-double. The average flower diameter is 12.7 cm, large flower. And inner ray floret and disc diameter are 8.10 cm and 2.80 cm, respectively. It produces a large yield with continuous supply of flowers and has adequate peduncle height. We believe that "Red Line" has a great potential for expanding cultivated area of domestic gerbera cultivars and increasing farmers-income.

Breeding of Light Yellow-Green Poinsettia 'Green Dream' (밝은 황록색 포인세티아 'Green Dream')

  • Lee, Eun-Kyung;Kim, Won-Hee;Kim, Seung-Tae;Lee, Kwang-Seek;Lee, Su-Young
    • Korean Journal of Breeding Science
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    • v.43 no.6
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    • pp.568-571
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    • 2011
  • A new poinsettia cultivar 'Green Dream' was bred by the National Institute of Horticultural and Herbal Science (NIHHS) in 2009. A cross was made between 'Lemon Snow', a variety with dark green leaves and light yellow-green bracts, and 'Freedom Rose', a variety with vigorously growing deep pink bracts in 2006. 'Green Dream' was finally selected in 2009 after the investigation of the growth and flowering characteristics from 2007 to 2009. 'Green Dream' has light yellow-green ovate bracts and medium intensity of rugosity between bract veins. Leaf blade is ovate and dark green. Petiole length is long, and stem color is greenish. 'Green Dream' has medium free-branching ability and long plant height. 'Green Dream's bracts and transitional leaves are fully colored 7 weeks after short day commencement.

A New Rose Cultivar, 'Pure Heart' with Bright Pink Color (연분홍색 장미 신품종 '퓨어하트' 육성)

  • Lee, Young Soon;Chung, Jae Woon
    • Korean Journal of Breeding Science
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    • v.40 no.1
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    • pp.76-79
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    • 2008
  • A new rose cultivar, 'Pure Heart' was selected from the progenies of a cross between 'Saphir' and 'Crystal Line' at the Gyeonggi-Do Agricultural Research and Extension Services in 1998. It was finally selected in 2002 after evaluation trials for three years (2000-2002). 'Pure Heart' was developed for a standard-type cut flower. 'Pure Heart' has some good agricultural and marketing traits. 'Pure Heart' has good qualified flower of which color is fair bright pink, 6.8cm in flower diameter and 4.5cm in flower height. 'Pure Heart' produce $122stems/m^2$ in a year, and has 45 petals per flower. The length of cut flower was long with 66.0cm. Vase life of the cultivar could be as long as 8 days. Futhermore marketing-quality was good in some aspects. The cultivar was applied for a variety protection in 2004 and was released to commercial growers in 2005.

Breeding of Potted Miniature Rose 'Tiny Ball' with Many Flowers (다화성 미니 분화장미 '타이니볼' 육성)

  • Kwon, Min Kyung;Han, Youn Yol;Ko, Jin Yong
    • FLOWER RESEARCH JOURNAL
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    • v.18 no.2
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    • pp.147-150
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    • 2010
  • A new cultivar potted miniature rose (Rosa hybrida) 'Tiny Ball' was selected out of cross combination 1999 and 2002 at Gumi Floricultural Experiment Station. Characteristics trials were conducted three times from 2003 to 2006. 'Tiny Ball' came from the combination that '990905' crossed to 'Manish'. New cultivar has pink and white flower color and the shape of flower is similar to tiny ball. The number of flower petals and flowers per pot are more than those of 'POULra022' as comparison cultivar. This cultivar has low plant height without treatment of plant retardant materials, so the high quality grade ratio of potted rose is higher than that of comparison cultivar.

Individual-breed Assignment Analysis in Swine Populations by Using Microsatellite Markers

  • Fan, B.;Chen, Y.Z.;Moran, C.;Zhao, S.H;Liu, B.;Yu, M.;Zhu, M.J.;Xiong, T.A.;Li, K.
    • Asian-Australasian Journal of Animal Sciences
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    • v.18 no.11
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    • pp.1529-1534
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    • 2005
  • Individual-breed assignments were implemented in six swine populations using twenty six microsatellites recommended by the Food and Agriculture Organization and the International Society for Animal Genetics (FAO-ISAG). Most microsatellites exhibited high polymorphisms as shown by the number of alleles and the polymorphism information content. The assignment accuracy per locus obtained by using the Bayesian method ranged from 33.33% (CGA) to 68.47% (S0068), and the accumulated assignment accuracy of the top ten loci combination added up to 96.40%. The assignment power of microsatellites based on the Bayesian method had positive correlations with the number of alleles and the gene differential coefficient ($G_{st}$) per locus, while it has no relationship to genetic heterozygosity, polymorphism information content per locus and the exclusion probabilities under case II and case III. The percentage of corrected assignment was highest for the Bayesian method, followed by the gene frequency and distancebased methods. The assignment efficiency of microsatellites rose with increase in the number of loci used, and it can reach 98% when using a ten-locus combination. This indicated that such a set of ten microsatellites is sufficient for breed verification purposes.