Table 5 Glucose (mg mL⁻¹) content^a in Pinus laricio callus grown in 28 d of subculture in presence of hormones (2,4-D + BAP) or humic or fulvic acids^b at A = 0.5 mg.L⁻¹; B = 1.0 mg.L⁻¹; C = 2.0 mg.L⁻¹

Control

4.14 (0.03)^e

4.14 (0.01)^ef

4.14 (0.01)^ef

2,4-D + BAP

1.46 (0.02)^l

1.46 (0.01)^l

1.46 (0.02)ⁱ

HA-C

4.50 (0.01)^d

4.30 (0.02)^e

4.31 (0.01)^e

HA-D

3.90 (0.06)^f

3.93 (0.03)^f

3.96 (0.02)^f

HA-E

1.12 (0.07)^m

1.19 (0.02)^m

1.03 (0.02)^l

HA-F

2.94 (0.03)^h

2.74 (0.02)^h

2.89 (0.03)^h

HA-G

1.65 (0.02)ⁱ

1.75 (0.02)ⁱ

1.53 (0.02)ⁱ

HA-H

3.55 (0.05)^g

3.59 (0.06)^g

3.56 (0.02)^g

HA-I

3.75 (0.05)^f

3.95 (0.05)^f

3.96 (0.05)^f

HA-L

4.70 (0.03)^d

4.83 (0.05)^d

4.79 (0.02)^d

HA-M

5.78 (0.04)^c

5.90 (0.02)^c

5.96 (0.08)^c

HA-N

7.95 (0.02)^a

7.90 (0.08)^a

7.88 (0.02)^a

FA-O

4.00 (0.02)^ef

4.11 (0.03)^ef

4.31 (0.02)^e

FA-P

3.50 (0.03)^g

3.90 (0.02)^f

4.90 (0.02)^d

FA-Q

6.45 (0.02)^b

6.95 (0.02)^b

6.90 (0.07)^b