Table 1 Effect of PGRs concentration combinations on EC proliferation coefficient.

From: Long term proliferation and physiological response of embryogenic callus in Slash pine (Pinus Elliottii Engelm)

Treatment

2,4-D mg/L

6-BA mg/L

Proliferation coefficient

1

0.5

0.5

5.54 ± 0.467bcd

2

1.0

0.5

5.87 ± 0.691abc

3

1.5

0.5

3.78 ± 0.861d

4

0.5

1.0

4.63 ± 0.721bcd

5

1.0

1.0

7.65 ± 0.565a

6

1.5

1.0

6.39 ± 0.179ab

7

0.5

1.5

3.65 ± 0.356d

8

1.0

1.5

5.31 ± 0.133bcd

9

1.5

1.5

4.41 ± 0.500 cd

  1. Note: Different lowercase letters indicated significant differences among samples (Duncan test; P < 0.05).