• Journal of the Korean Institute of Landscape Architecture
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• v.48 no.6
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• pp.48-57
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• 2020

This study was aimed to determine the history of Son keechung laurel tree, which is designated and managed as Seoul Metropolitan Government Monument No. 5. Sohn keechung's victory in the marathon at the 1936 Berlin Olympics served as an opportunity to encourage great pride and national spirit for the Korean people's national spirit who had spent their painful days under Japanese colonial rule. The seedlings that Son keechung received at the time are currently growing at Son Keechung Sports Park on the hill in Manri-dong, west of Seoul Station, and are Quercus palustris. That variety of Tree is native to the United States. The 11th Berlin Olympics, held in 1936, is a golden opportunity for Hitler to show off the history and cultural excellence of the German race, so it does not make sense to award victors an American giant oak instead of the German oak tree. The Seoul Metropolitan Government and various media outlets made a fait accompli due to Hitler's simple mistake. However, this study revealed that the laurel that Son received was the Quercus robur, based on the articles of the Korean newspaper, the German daily newspaper, and the recently introduced article of Der Spiegel, a leading German weekly magazine. Based on these circumstances, I would like to suggest that the originally awarded Quercus robur be planted in Son keechung Memorial Park and that the newly discovered history be notified on the Seoul Metropolitan Government website and various records.

• Korean Journal of Agricultural and Forest Meteorology
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• v.10 no.2
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• pp.47-57
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• 2008

Physiological and biochemical changes of five species of genus Quercus exposed to ozone fumigation were investigated to assess their tolerance against ozone toxicity. At the end of 150 ppb ozone fumigation, chlorophyll contents, photosynthetic characteristics, malondialdehyde(MDA) and antioxidative enzyme activities were measured in the leaves of five Quercus species(Quercus acutissima, Q. aliena, Q. palustris, Q. serrata, and Q. variabilis). Chlorophyll and carotenoid contents, net photosynthesis and carboxylation efficiency decreased after ozone treatment, indicating that $O_3$-exposed plants underwent physiological inhibition. The reduction rate of total chlorophyll contents and carboxylation efficiency were respectively 15% and 34% for Q. aliena and 38% and 62% for Q. variabilis. The amount of MDA increased with the highest increase rate of 140% in Q. acutissima which also showed the highest increase rate(60%) of superoxide dismutase(SOD). Ascorbate peroxidase(APX) activity increased in Q. variabilis, Q. serrata and Q. acutissima by ozone treatment. Based on our results, ozone tolerance of the five Quercus species was ranked as Q. aliena>Q. palustris>Q. serrata>Q. variabilis>Q. acutissima. We concluded that chlorophyll contents, photosynthesis, MDA content and antioxidative enzymes were the important physiological markers for tolerance against ozone stress, which were closely related with one another.

• FLOWER RESEARCH JOURNAL
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• v.16 no.1
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• pp.17-22
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• 2008

Four kinds of leaves with different shapes of leaf blade were used as experimental materials to establish an optimum condition for treating leaves to obtain skeleton leaves. Effective concentration and length of soaking time in a hot NaOH solution, which resulted in high valued ornaments, were 60% (v/v) for 50 minutes for Acer buergerianum (palmatifid), 20% (v/v) for 50 minutes for Ilex cornuta (serrate), 20-60% (v/v) for 70 minutes for Quercus mongolia (lobed), and 20-40% (v/v) for 70 minutes for Quercus palustris (parted). Through a series of the process of soaking leaves in a hot NaOH solution, rinsing or brushing to remove mesophyll, drying, and dying, high quality ornaments could be obtained.