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.
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