An Uncommon Plant Growth Regulator, Diethyl Aminoethyl Hexanoate, Is Highly Effective in Tissue Cultures of the Important Medicinal Plant Purple Coneflower (Echinacea purpurea L.)

Table 5

Summary of suitable concentrations of DA-6 for application in various cultures.

Purpose of culture	Explant source	Ploidy levels	DA-6 concentration (mg/L)
Adventitious bud regeneration	Leaf	Diploid	0.16
		Triploid	0.16
		Tetraploid	0.08
		Hexaploid	0.08
	Petiole	Diploid	0.08
		Triploid	0.01
		Tetraploid	0.01
		Hexaploid	0.16
	Root	Diploid	0.01
		Triploid	0.01
		Tetraploid	0.01
		Hexaploid	0
Growth of regenerated buds		Diploid	0.08
		Triploid	0.16
		Tetraploid	0.16
		Hexaploid	0.08