For analysis of the relationship among blueberry cultivars, the growth period and morphological characteristics were investigated in 28 blueberry cultivars, and cluster analysis using the SAS program was conducted based on the morphological data. The harvest period was later and longer in rabbiteye blueberry cultivars (Austin, Brightwell, Powderblue, Southland, Tifblue) than in highbush blueberry cultivars. The L/D ratio of flower was more than 2.0 in the Austin, Brightwell, Powderblue, Southland, Tifblue, and Brigitta cultivars, and this could be disadvantageous for pollination. The 28 blueberry cultivars were classified into two groups by the cluster analysis based on growth period and morphological characteristics. Group I included rabbiteye blueberries and Group II included highbush blueberries. However, the northern, southern, and half-highbush blueberry cultivars were not differentiated.

• 김수진(국립원예특작과학원 과수과) | Su Jin Kim
• 정성민(국립원예특작과학원 과수과) | Sung Min Jung
• 허윤영(국립원예특작과학원 과수과) | Youn Young Hur
• 남종철(국립원예특작과학원 과수과) | Jong Cheol Nam
• 김세희(국립원예특작과학원 과수과) | Sae Hee Kim
• 조강희(국립원예특작과학원 과수과) | Kang Hee Cho
• 박정관(국립원예특작과학원 과수과) | Jung Gwan Park
• 박서준(국립원예특작과학원 과수과) | 국립원예특작과학원 과수과 교신저자