Polyamines (µM)

Regeneration rate (%)

Shoots length (cm)

Number of shoots

Number of buds

Rooting rate (%)

Number of roots

Hyperhydricity rate (%)

Control

91.7 ± 0.0 ^b

4.69 ± 0.42 ^b

1.73 ± 0.24 ^ab

21.00 ± 1.07 ^cd

100.0 ± 0.0 ^a

6.45 ± 0.65 ^ef

9.1 ± 0.0 ^a

Putrescine

2

100.0 ± 0.0 ^a

5.82 ± 0.41 ^a

1.92 ± 0.23 ^ab

23.83 ± 1.58 ^abc

91.7 ± 0.0 ^bc

7.96 ± 0.74 ^def

0.0 ± 0.0 ^c

5

95.8 ± 4.2 ^ab

4.05 ± 0.35 ^bc

1.96 ± 0.17 ^ab

25.78 ± 1.31 ^ab

100.0 ± 0.0 ^a

8.52 ± 0.80 ^def

0.0 ± 0.0 ^c

10

91.7 ± 0.0 ^b

4.30 ± 0.29 ^bc

1.59 ± 0.16 ^b

25.18 ± 1.90 ^abc

100.0 ± 0.0 ^a

13.86 ± 0.87 ^a

0.0 ± 0.0 ^c

20

95.8 ± 4.2 ^ab

2.74 ± 0.14 ^d

1.68 ± 0.26 ^ab

18.48 ± 1.28 ^d

100.0 ± 0.0 ^a

10.56 ± 0.70 ^bc

0.0 ± 0.0 ^c

Spermidine

2

91.7 ± 0.0 ^b

6.24 ± 0.53 ^a

2.27 ± 0.30 ^a

25.50 ± 1.31 ^abc

100.0 ± 0.0 ^a

8.55 ± 0.78 ^cde

4.5 ± 4.5 ^b

5

91.7 ± 0.0 ^b

3.82 ± 0.32 ^bc

1.46 ± 0.14 ^b

19.41 ± 1.43 ^bcd

86.4 ± 4.5 ^d

7.47 ± 0.94 ^bcd

0.0 ± 0.0 ^c

10

100.0 ± 0.0 ^a

4.76 ± 0.31 ^b

1.38 ± 0.12 ^b

23.83 ± 1.62 ^abc

100.0 ± 0.0 ^a

12.21 ± 0.84 ^ab

0.0 ± 0.0 ^c

20

95.8 ± 4.2 ^ab

3.92 ± 0.21 ^bc

2.35 ± 0.27 ^a

21.65 ± 1.45 ^bcd

100.0 ± 0.0 ^a

11.09 ± 0.87 ^b

0.0 ± 0.0 ^c

Spermine

2

100.0 ± 0.0 ^a

5.99 ± 0.42 ^a

1.83 ± 0.12 ^ab

21.58 ± 1.09 ^bcd

95.8 ± 4.2 ^ab

5.96 ± 0.59 ^f

0.0 ± 0.0 ^c

5

91.7 ± 0.0 ^b

3.63 ± 0.33 ^cd

2.00 ± 0.22 ^ab

22.18 ± 1.26 ^bcd

90.9 ± 0.0 ^cd

7.35 ± 0.81 ^ef

0.0 ± 0.0 ^c

10

100.0 ± 0.0 ^a

4.18 ± 0.28 ^bc

2.29 ± 0.30 ^a

27.42 ± 1.48 ^a

100.0 ± 0.0 ^a

10.50 ± 0.84 ^bc

8.3 ± 0.0 ^a

20

95.8 ± 4.2 ^ab

2.82 ± 0.14 ^d

2.35 ± 0.22 ^a

23.00 ± 1.36 ^abc

100.0 ± 0.0 ^a

10.65 ± 0.77 ^bc

0.0 ± 0.0 ^c