Table 5 Effects of different combinations of hormones on embryonic callus maintenance and proliferation of Korean pine

From: Selection of culture conditions for callus induction and proliferation by somatic embryogenesis of Pinus koraiensis

Treatment PGRs materials Proliferation efficiency (%) Growth status of embryonic callus
1 2,4-D + 6-BA 405.46 ± 12.12 b Proliferated fast, embryonic feature could be maintained for a long term
2 IBA + 6-BA 398.39 ± 20.93 c Proliferated fast, embryonic feature not be maintained over long term
3 IBA + ABA 253.25 ± 10.30 d Proliferated slowly and commonly browned
4 6-BA + KT 414.49 ± 18.17 a Proliferated fast and browned severely
5 2,4-D + ABA 254.02 ± 22.51 d Proliferated slowly and browned severely
  1. Different letters in the same column indicate a significant difference at α = 0.05