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Table 1 Morphogenic response of different explants of two Echinacea varieties cultured on MS-medium supplemented with different combinations of NAA and BA after 4 weeks of cultivation

From: Active compounds and biological activity of in vitro cultures of some Echinacea purpurea varieties

Var.

NAA BA (mg/l)

Leaves

Shoot tips

Callus initiation (%)

No. of shoot/exp.

Callus initiation (%)

No. of shoot/exp.

Rubinstern

0.00

0.00

0

0.00

0

0.00

0.25

0.50

60

0.00

100

0.67

0.50

0.50

86

0.57

100

2.00

1.0

0.50

86

0.66

100

0.83

Double Decker

0.00

0.00

0

0.00

0

0.00

0.25

0.50

67

0.33

100

0.00

0.50

0.50

86

0.29

100

0.00

1.0

0.50

100

1.00

100

0.00