Table 4. Effect of different 2,4-dichlorofenoxiacetic acid concentrations on different peanut explants of Tegua and Nahuel varieties.

Explant*

Concentration of 2,4-D (mg.l-1)

Nš of explants

Callus percentage*

Effect

on explant

Percentage of embryogenic callus*

Cotyledons with embryosb

1

10

20

30

40

50

20

20

20

20

20

20

40 e

45 e

60 d

65 c

70 b

80 a

P

C

C

C

C

C

0 a

0 a

0 a

0 a

0 a

12 a

Cotyledons without embryosc

1

10

20

30

40

50

20

20

20

20

20

20

40 e

40 e

50 d

55 c

60 b

70 a

E; C

E; C

E; C

E; C

E; C

E; C

0 a

0 a

0 a

0 a

0 a

0 a

Epicotylsa

1

10

20

30

40

50

20

20

20

20

20

20

55 e

60 e

75 d

80 c

90 b

100a

E; C

E; C

E; C

E; C

E; C

E; C

0 a

0 a

0 a

31 a

50 a

65 a

Leafletsb

1

10

20

30

40

50

20

20

20

20

20

20

40 e

40 e

60 d

65 c

75 b

85 a

C

C

C

C

C

C

0 a

0 a

0 a

0 a

0 a

0 a


Abbreviations: E: Explant size increase; C: Callus; P: Plantlet growth

*Mean separation using Duncan's Multiple Range Test, means with different letters are significant at the 5% level.

Supported by UNESCO / MIRCEN network
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