Table 1. Effect of BAP, TDZ and Kinetin on embryogenic callus induction in coffee (Coffea arabica L. cv. Caturra and Catuaí) 16 weeks of culture on S1 + S2 media.

Growth regulators (µM)

Callus formation (%)

2,4-D

BAP

TDZ

KIN

Caturra

Catuaí

4.52

-

-

18.5

87 a

67a

4.52

4.4

-

-

19 b c

8 b

4.52

8.9

-

-

11 b c

9 b

4.52

13.2

-

-

6 b c

11 b

4.52

17.6

-

-

6 b c

5 b

4.52

22.2

-

-

0 d

0 c

4.52

-

2.2

-

9 b c

3 b

4.52

-

4.5

-

15 b c

3 b

4.52

-

6.8

0 d

0 c