Xlll International Symposium
on Flower Bulbs and Herbaceous Perennials

May 1 - 3, 2019
Grand Ambassador, Seoul, Korea

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Name Topic
Chad T. Miller (USA) Evaluation of hybrid Lilium for the landscape
Fangyun Cheng (China) Studies and advances on the breeding of inter-sectional hybrids of peony in China
Gary A. Chastagner (USA) Integrated management of diseases and pests on ornamental geophytes: Challenges and progress
Johan Van Huylenbroeck (Belgium) Breeding for compact growing ornamentals
Keith A. Funnell (New Zealand) Germplasm diversification - a Kiwi perspective on tools and strategies
Marc W. van Iersel (USA) Photosynthetic properties of perennials: Implications for supplemental lighting
Margherita Beruto (Italy) Ranunculus asiaticus: from research to production
Naomi Okubo (Japan) Diversity of floral scent of Tulips
Naonobu Noda (Japan) Breeding of blue flowers by genetic engineering
Neil O. Anderson (USA) Selection tools for reducing generation time of geophytic herbaceous perennials
Rina Kamenetsky Goldstein (Israel) Geophyte cultivation in changing climate: how temperature regulates flowering, bulbing and propagation
William B. Miller (USA) Tulips, Fusarium and Ethylene: Changing the Paradigm
Yun-Im Kang (Korea) Flower Bulbs and Herbaceous Perennials breeding and research in Korea
  • Dr. Chad Miller
    Kansas State University, USA
  • Evaluation of hybrid Lilium for the landscape
Wide ranging landscape trials of plant species and different cultivars are important for promotion and integration into designed landscapes. Hybrid lilies are important geophytic crop in the horticulture industry. The genus is diverse, especially for their flowering characteristics and can be a valuable addition to a landscape. Our research will provide insight to landscape performance across several locations in the United States.
  • Dr. Fangyun Cheng
    Beijing Forestry University, China
  • Studies and advances on the breeding of inter-sectional hybrids of peony in China
In decades past, inter-sectional hybrids in Paeonia have found their uses in increasing peony industry across the world while inter-sectional crossing becomes the most effective pathway to improve peony cultivars. Since 2000, we have started a breeding project based on inter-sectional crosses. Here, the recent advances on it will be summarized: 1) the wide crosses among various peony species/cultivars, including P. rockii, P. ostii, P. quii, P. sufruticosa, P. lemoinei, P. veitchii and P. lactiflora, were carried out to select ideal combinations between different parents. 2) Advance generation hybrids (AGH) were demonstrated to be promising in crossings with different P. lactiflora cultivars. Some excellent parent-combinations between them can effectively produce the hybrid seeds in annual crossings. 3) Combined with morphological observation, SSR molecular markers were employed to identify early the hybrids and meanwhile, the techniques by micropropagation in vitro and by grafting were studied for propagating intersectional peony hybrids.
  • Dr. Gary A. Chastagner
    Washington State University, USA
  • Integrated management of diseases and pests on ornamental geophytes: Challenges and progress
The development and implementation of cost effective, sustainable production practices that rely on an integrated approach to managing diseases and pests is critical to the long term production of high quality ornamental geophytes. Increasing restrictions on the use of pesticides, the loss of widely used products, and problems associated with the development of resistance to pesticides have resulted in an urgent need to develop environmentally acceptable management strategies. During this presentation, a historical perspective and overview of recent advances in the integrated management of disease and pest on geophytes will be given.
  • Dr. Johan Van Huylenbroeck
    Flanders Research Institute for Agriculture, Fisheries and Food, Belgium
  • Breeding for compact growing ornamentals
Compact growth is a very important trait in the production of numerous ornamental plants. In practice this is mainly achieved by regular application of various chemical growth inhibitors. Via cross breeding and subsequent selection natural compact growing plants can be obtained. Mutation breeding, chromosome doubling and introduction of rol genes from Rhizobium rhizogenes in plants are interesting alternative breeding approaches. Here we will focus on the application and possibilities of the latter two strategies to develop natural compact growing ornamentals.
  • Dr. Keith Funnell
    The New Zealand Institute for Plant & Food Research Limited, New Zealand
  • Germplasm diversification - a Kiwi perspective on tools and strategies
The international ornamentals industry already benefits from recently developed ornamental plants from New Zealand (NZ) such as begonia ¡®Bonfire¡¯, limonium Sinzii¢â, and the gentian Showtime¢â series. Our experience illustrates that sustaining delivery of new ornamental cultivars with commercial appeal requires strategies of diversification of people and plants. Our NZ-based experiences providing examples of the application of hybridisation, ploidy manipulation, and mutagenesis will be presented.
  • Dr. Marc W. van Iersel
    University of Georgia, USA
  • Photosynthetic properties of perennials: Implications for supplemental lighting
Perennial plants are often produced during winter for Spring sales. Low light levels in winter can negatively impact the quality of the plants and supplemental light is often need to produce high quality plants. Because of the wide variety or perennial plants in the marketplace, it can be difficult to come up with general guidelines for supplemental lighting of perennial plants. Understanding plant physiological properties or different species, and specifically photosynthesis - light response curves, can help in developing more energy-efficient and cost-effective supplemental lighting approaches.
  • Dr. Margherita Beruto
    Regional Institute for Floriculture, Italy
  • Ranunculus asiaticus: from research to production
A reliable propagation system has been proved to enhance the breeding programs of geophytes and to accelerate the availability of selected and healthy genotypes. Tissue culture is therefore an attractive option to enhance the impact of new geophytes. In this talk, the appropriate micropropagation protocol which allowed to bring clones onto market for Ranunculus asiaticus, an ornamental geophyte showing an increasing interest as cut flower and pot plant production, is described. Details about the propagation scheme and the strategies which should be adopted in the nursery to ensure healthy plant material are pointed out. Moreover the most important challenges to be faced during the cultivation and the phytopathological management will be discussed with reference to the research work which is carried out at our institution. The economic importance of micropropagation and the perspectives for a further development of this crop will be outlined.
  • Dr. Naomi Okubo
    National Agriculture and Food Research Organization, Japan
  • Diversity of floral scent of Tulips
Tulips have a variety of floral scents. Although the charm of tulip is a variety of colors and shapes, there are a few fragrant cultivars. When you smell the tulip scent well, you can feel various scents such as citrus-like, honey-like, green-like. The horticultural research institute in Toyama prefecture in Japan maintains over 2000 species of tulip genetic resources. In this study, we smelled the fragrance of the flowers of these genetic resources and analyzed the floral scent components of the cultivars which felt aroma. Here we discuss the diversity of the scent of these tulips.
  • Dr. Naonobu Noda
    National Agriculture and Food Research Organization, Japan
  • Breeding of blue flowers by genetic engineering
The breeding of blue flower in major ornamental plants, such as chrysanthemum and rose, is quite difficult with conventional breeding methods because there are no closely-related species with blue flower. We have succeeded in generation of blue chrysanthemums through genetic engineering. The commercialization of blue chrysanthemums may facilitate the expansion of flower color variation, increase the potential flower value and open new possibilities and applications in chrysanthemums. Our research results from molecular breeding of the blue chrysanthemums and outline of future perspectives in blue flower breeding will be presented.
  • Dr. Neil Anderson
    University of Minnesota, USA
  • Selection tools for reducing generation time of geophytic herbaceous perennials
A restrictive challenge to breeding and domestication of geophtyes and herbaceous perennials (both new and existing crops) is the long generation time, often ranging from 3-5+ years from seed to flowering. These long juvenility periods limit progress in selection and/or incorporation of traits from wild species. However, juvenility periods can be significantly reduced with selection tools starting in the plug phase, following seed germination. Several selection tools of rapid generation cycling that have been employed in Lilium, Gladiolus, Iris, and Chrysanthemum will be presented. Using these tools, for example in Gladiolus, the generation time of five years was reduced to <2 months (seed to flower).
  • Dr. Rina Kamenetsky Goldstein
    Institute of Plant Sciences, ARO, Israel
  • Geophyte cultivation in changing climate: environmental effects on flowering, bulbing and propagation
Temperature and light play major role in geophyte annual development. Knowledge on plant-environment interactions allows us ¡°programming¡± geophyte production for the best market time and quality. In addition, the identification and introduction of genes, which control and regulate flower development, storage organ formation and dormancy in vivo and in vitro, await further progress and will provide new tools for successful production of the ornamental geophytes.
  • Dr. William B. Miller
    Cornell University, USA
  • Tulips, Fusarium and ethylene: Changing the paradigm
The basal rot organism, Fusarium oxysporum, produces ethylene when colonizing tulip bulbs. Damage from Fusarium infection is of two main types. First, the direct loss of the infected bulb, and second, the ethylene that is produced can injure healthy bulbs leading to flower abortion and subsequent abnormal growth when the bulb is forced in the greenhouse. While the basic relationship of tulip bulbs, Fusarium and ethylene has been known for more than 40 years, the range of responses and interactions of plant, disease and hormone have not been fully appreciated. Results to date challenge the long-standing paradigm that 1) Fusarium infection is always associated with ethylene production, 2) ethylene production by Fusarium is static for all cultivars and 3) all tulip cultivars are susceptible to ethylene injury. Results of this and ongoing studies can be useful for breeding efforts to reduce ethylene injury in tulip.
  • Dr. Yun-Im Kang
    National Institute of Horticultural & Herbal Science, Korea
  • Flower bulbs and herbaceous perennials breeding and research in Korea
Flower bulbs and herbaceous perennials as cut flowers, pot, and garden plant are one of the most important ornamental plants in South Korea. Flower bulbs which are mainly cultivated are lilies, freesias, gladioluses, calla lilies, alstromerias, and herbaceous perennials such as chrysanthemums, gerberas, carnations and Gypsophila paniculata. The total flower cultivation area in Korea is 4,936 ha and the annual production value is US$ 490 million in 2017. Cut flower production value is US$ 160 million, 32.4% of the flower production. The annual production value of flower bulbs is 14.2% and the annual production value of herbaceous perennials is 43.9% of the cut flower production. Until the early 2000s, most of the seeds, nursery, and bulbs of the crops were imported from the Netherlands, New Zealand and China, and etc. However, the penetration rate of domestic varieties and seedlings has increased to more than 20%. In order to achieve this goal, the National Institute of Horticultural and Herbal Science (NIHHS) has been developed in cooperation with universities, and private breeders, and local research institutes. Development of adaptable cultivars mainly in Korea, development of varieties with various colors and fragrance, development of interspecific hybrid varieties, development of drainage varieties, and development of domestic varieties cultivation manuals have been conducted. Recently, we have been actively using the methods to identify useful genes using NGS technology for breeding and are conducting research on smart greenhouse management for advanced cultivation technology.

And more speakers will be invited soon.

Ki-Byung Lim
  • Department of Horticultural Science, Kyungpook National University, Korea
Jongyun Kim
  • Division of Biotechnology, Korea University, Korea
  • info@flowerbulb2019.org
Jaap M. van Tuyl
  • Wageningen University and Research, The Netherlands
Yoon-Jung Hwang
  • Department of Life Science, Samyook University, Korea
  • science@flowerbulb2019.org

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