Table 1.
Physicochemical properties of 45 blueberry cultivars grown in Suwon, Korea
| Genotype | Cultivar | Harvest date* | FW# (g) | SSC∆ (°Brix) | TA∆ (%) | pH∆ | Firmness (N)# |
| Northern highbush | Berkeley | Jul. 7 | 2.20 d–f | 12.1 a–g | 0.89 l–s | 3.8 a–e | 5.7 n–u▲ |
| Bluecrop | Jul. 7 | 1.83 g–j | 9.8 f–h | 0.78 q–s | 4.0 a–d | 6.5 h–q | |
| Bluegold | Jul. 7 | 1.96 f–i | 9.8 f–h | 2.0 f–i | 3.6 b–e | 6.9 f–n | |
| Bluehaven | Jun. 29 | 1.96 f–i | 11.0 b–h | 2.0 f–i | 3.4 b–e | 5.2 p–v | |
| Bluejay | Jun. 24 | 2.45 cd | 11.5 a–g | 2.5 cd | 3.5 b–e | 6.1 i–s | |
| Blueray | Jun. 29 | 2.47 cd | 10.3 c–h | 2.5 cd | 3.4 b–e | 6.2 i–s | |
| Bluetta | Jun. 22 | 2.02 e–g | 10.1 d–h | 2.0 e–g | 3.3 b–e | 5.8 k–t | |
| Brigitta | Jul. 12 | 3.42 ab | 11.7 a–g | 3.4 ab | 3.5 b–e | 7.6 d–h | |
| Burlington | Jul. 7 | 1.66 h–k | 12.9 a–e | 1.7 h–k | 3.6 b–e | 6.2 i–s | |
| Collins | Jun. 24 | 1.83 g–j | 10.9 c–h | 1.8 g–j | 3.5 b–e | 7.7 d–h | |
| Coville | Jul. 1 | 1.64 i–k | 11.5 a–g | 1.6 i–k | 3.9 a–d | 5.8 k–t | |
| Croatan | Jun. 25 | 1.38 k–m | 12.3 a–g | 1.4 k–m | 4.2 a–c | 4.9 s–v | |
| Darrow | Jun. 29 | 2.27 d–f | 10.6 c–h | 2.3 d–f | 3.0 de | 6.8 g–o | |
| Dixi | Jul. 7 | 2.51 cd | 11.8 a–g | 2.5 c–d | 3.8 a–e | 5.1 q–v | |
| Duke | Jun. 24 | 1.81 g–j | 9.7 f–h | 1.8 g–j | 3.9 a–e | 9.0 bc | |
| Earliblue | Jun. 22 | 2.21 d–f | 11.6 a–g | 2.2 d–f | 2.8 e | 7.1 e–k | |
| Eliott | Jul. 27 | 1.83 g–j | 10.5 c–h | 1.8 g–j | 3.4 b–e | 5.6 n–u | |
| Elizabeth | Jul. 6 | 2.26 d–f | 13.1 a–d | 2.3 d–f | 3.9 a–e | 7.6 d–h | |
| Evelyn | Jun. 29 | 1.42 kl | 12.6 a–f | 1.4 kl | 3.5 b–e | 5.7 l–t | |
| Herbert | Jul. 1 | 3.17 b | 10.5 c–h | 3.2 b | 3.7 b–e | 4.1 vw | |
| Jersey | Jul. 7 | 1.96 f–i | 10.8 c–h | 2.0 f–i | 3.7 b–e | 7.0 e–l | |
| Lateblue | Jul. 27 | 2.46 cd | 10.6 c–h | 2.5 cd | 3.2 e | 6.2 i–r | |
| Meader | Jun. 29 | 2.28 d–f | 9.7 f–h | 2.3 d–f | 3.5 b–e | 7.4 e–i | |
| Nelson | Jun. 29 | 2.75 c | 10.7 c–h | 2.7 c | 3.9 a–e | 4.4 u–w | |
| Nui | Jun. 24 | 3.13 b | 10.3 c–h | 3.1 b | 3.3 b–e | 12.4 a | |
| Olympia | Jun. 29 | 1.59 jk | 11.7 a–g | 1.6 jk | 0.6 f | 6.2 i–s | |
| Pacific | Jun. 29 | 1.05 mn | 10.0 e–h | 1.0 mn | 4.1 a–d | 3.9 vw | |
| Patriot | Jun. 24 | 2.32 de | 9.8 f–h | 2.3 de | 3.3 b–e | 9.8 b | |
| Pioneer | Jul. 6 | 0.93 n | 12.0 a–g | 0.9 n | 4.3 ab | 4.5 t–w | |
| Puru | Jun. 24 | 1.53 jk | 11.3 a–h | 1.5 j–k | 3.5 b–e | 7.2 e–j | |
| Rancocas | Jul. 7 | 1.34 k–m | 12.3 a–g | 1.3 k–m | 4.5 a | 8.0 c–g | |
| Reka | Jun. 25 | 1.65 i–k | 10.7 c–h | 1.6 i–k | 3.4 b–e | 8.2 c–f | |
| Rubel | Jun. 29 | 1.06 mn | 13.2 a–c | 1.1 mn | 3.4 b–e | 6.5 h–p | |
| Sierra | Jun. 29 | 2.40 cd | 11.5 a–g | 2.4 cd | 3.3 b–e | 8.2 c–e | |
| Spartan | Jun. 22 | 1.57 jk | 12.3 a–g | 1.6 jk | 3.9 a–d | 5.9 j–s | |
| Sunrise | Jul. 6 | 3.58 a | 12.7 a–f | 3.6 a | 3.5 b–e | 8.9 b–d | |
| Toro | Jul. 7 | 3.14 b | 9.3 gh | 3.1 b | 3.9 a–e | 4.9 r–v | |
| Washington | Jul. 6 | 1.82 g–j | 10.9 c–h | 1.8 g–j | 3.7 a–e | 8.2 c–e | |
| Weymouth | Jun. 25 | 1.31 k–m | 11.4 a–h | 1.3 k–m | 3.3 b–e | 5.5 o–u | |
| Half highbush | Chippewa | Jul. 7 | 2.01 e–h | 8.3 h | 0.99 k–r | 3.5 b–e | 4.1 vw |
| Friendship | Jun. 29 | 1.08 l–n | 14.3 a | 2.14 a | 3.4 b–e | 3.5 w | |
| Northblue | Jun. 24 | 2.21 d–f | 9.7 f–h | 1.05 i–r | 3.3 b–e | 7.0 e–m | |
| Northcountry | Jun. 24 | 0.86 n | 14.0 ab | 1.32 c–j | 3.5 b–e | 5.7 m–t | |
| Northland | Jun. 25 | 1.65 i–k | 9.8 f–h | 1.32 c–j | 3.6 b–e | 6.1 j–s | |
| Polaris | Jun. 24 | 1.82 g–j | 11.8 a–g | 1.26 c–k | 3.1 de | 6.9 f–n |
*
The first harvest date for mature, fully colored, unblemished fruit
#
Values represent the mean of 20 fruits
∆
Values represent the mean of three replicates using 10 fruits each
▲
Means followed by different letters in the same column are significantly different at P<0.05, with comparisons performed using Tukey’s test