Explant type

Concentrations of ABA (nM)

Shoot regeneration frequency^*

6 Day

9 Day

12 Day

Cot E

0

86.28 ± 3.40^c

88.56 ± 3.60^e

95.80 ± 3.65^f

20

70.59 ± 2.80^bc

75.98 ± 0.85^d

80.33 ± 0.58^e

40

53.71 ± 3.21^b

68.75 ± 4.25^c

72.50 ± 3.44^d

60

29.63 ± 2.62^ab

41.67 ± 3.60^b

57.14 ± 3.69^cd

80

12.96 ± 3.11^a

27.29 ± 2.96^ab

51.11 ± 4.14^cd

100

7.84 ± 2.28^a

17.65 ± 3.15^a

33.33 ± 3.60^b

Cot

0

Callus formation

61.55 ± 2.97^c

70.17 ± 3.04^d

20

52.95 ± 4.86^bc

62.50 ± 2.25^c

40

45.13 ± 3.42^b

43.01 ± 3.38^bc

60

31.37 ± 3.98^ab

33.33 ± 2.90^b

80

25.49 ± 3.39^ab

23.90 ± 3.26^ab

100

13.75 ± 3.45^a

15.68 ± 3.79^a