Japanese apricot (Prunus mume) “Okboseok” was released from a cross between “Nanko” and “Yoseibai” in 1993 at
the Pear Research Station of National Institute of Horticultural and Herbal Science, Rural Development Administration. It was
preliminarily selected in 2001 and named in 2006. It produces high yield with a flesh about average 88.3% of fruit, although
the fruit size is small (approximately 14.0g). Horticultural and physiological harvest time of this cultivar is mid and late June
respectively. It has single flowers with pink petal color and its flowering time is about 4 days later than that of “Nanko”. Its
fruit is tolerant to bacterial shot hole (Xanthomonas arboricola pv. Pruni) and pear scab (Venturia nashicola). “Okboseok” has
abundant pollen grains (about 96 mg/100 flowers), thus it could be a pollinizer. To obtain stable yields, however, its compatibility
with major cultivars is needed to be confirmed as pollinizer cultivar. “Okboseok” is recommended for being preserved in sugar
and liquor.