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  • Author or Editor: Ki Hwan Lee x
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Previous research has shown horticultural therapy (HT) provides both physical and mental benefits to those engaged in the gardening activities. Individuals' willingness-to-pay (WTP) for these benefits, however, is unknown because of the lack of well-defined markets for HT. As such, this study estimates individuals' mean WTP for a HT site in Busan, South Korea. Mean WTP is ≈$170/month U.S. per individual. WTP, however, shows a wide dispersion; the standard deviation of the estimated WTP is ≈$60 U.S. This study provides additional information to the policymakers of Busan concerning the issue of developing a horticultural site for its citizens. This information must be weighed against the costs of developing the site.

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Korean fir (Abies koreana) has been cultivated for less than 100 years, mainly in the United States and Europe. Using nuclear microsatellite, mitochondrial, and chloroplast markers, we investigated the origin of cultivated korean fir from South Korea (KC group) as well as the United States and United Kingdom (EU group), and compared these samples to published data from wild populations. All genotypes in the EU and KC groups were most closely related to the wild individuals from Mt. Hallasan, the southernmost A. koreana population on Jejudo Island (South Korea). However, the presence of the chloroplast haplotypes clustered with Abies balsamea in two EU cultivars and the higher diversity values of the EU group compared with the wild individuals from Mt. Hallasan infer a certain level of introgression from different species during cultivation. The EU group had a higher inbreeding coefficient and linkage disequilibrium, and a smaller proportion of rare alleles, than the wild populations. This suggests that the genetic characteristics of korean fir cultivars reflect strong artificial selection pressure for desirable horticultural traits and asexual reproduction. Last, this genetic background study suggests that the other wild populations in the Korean peninsula can serve as valuable genetic resources for future breeding.

Open Access

This study investigated trends in lily (Lilium hybrids) cultivars and challenges for growing cut lily flowers using a survey of producers in the South Korean lily industry. A questionnaire requested information on various topics including the total growing area, length of farming experience, cultivars grown, factors considered when purchasing bulbs, cultivation systems, horticultural practices, disease and pest problems, and horticultural problems. The survey targeted the membership of the Korea Lily Producer Association and the number of respondents corresponded to 43% of all lily farmers in the country. Oriental-Trumpet (OT) hybrid ‘Yelloween’ and Oriental hybrids ‘Siberia’, ‘Medusa’, and ‘Sorbonne’ were mainly cultivated in South Korea. The main flower colors were yellow, white, and pink. Factors considered in choosing cultivars were the prices of bulbs and cut flowers affecting income of the farm. More than 90% of respondents used soil culture in a greenhouse to grow cut flowers. There were various horticultural practices used from planting to harvest. The main pests harming bulb and flower productivity were fungus gnat (Bradysia difformis) and bulb mite (Rhizoglyphus robini), and the most common horticultural problem was leaf scorch. Overall, the survey suggested that the stable production of lily bulb with low cost and high quality was required and practical techniques should be developed for increasing the cut lily production efficiency. In addition, the pests, diseases, and horticultural problems in the given local environmental conditions should be considered when breeding new cultivars and developing production technology.

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