cytokinin selection on Dracaena
Quick answer
If your Dracaena has cytokinin selection, the most likely cause is: Cytokinins like benzyl adenine (BA) and kinetin differ in their affinity for cytokinin receptors and metabolism rates in Dracaena tissue, leading to BA producing 3.20 shoots versus near-zero at higher kinetin concentrations
Start here:
- 1. 1. BA (synthetic cytokinin): Use at 1.3-1.5 ppm for optimal shoot induction in Dracaena
- 2. 2. Kinetin (alternative cytokinin): Limit to 1.3 ppm maximum; concentrations above 1.4 ppm become toxic
Why Dracaena gets cytokinin selection
Dracaena spp.
Cytokinins like benzyl adenine (BA) and kinetin differ in their affinity for cytokinin receptors and metabolism rates in Dracaena tissue, leading to BA producing 3.20 shoots versus near-zero at higher kinetin concentrations
How to reverse cytokinin selection on Dracaena
- 1
1. BA (synthetic cytokinin): Use at 1.3-1.5 ppm for optimal shoot induction in Dracaena
- 2
2. Kinetin (alternative cytokinin): Limit to 1.3 ppm maximum; concentrations above 1.4 ppm become toxic
- 3
3. BA superiority stems from faster metabolic conversion and higher receptor binding affinity in monocots
- 4
4. Combine cytokinin selection with 16h photoperiod at 3000 lux for optimal shoot proliferation
- 5
5. Monitor for callus formation at cut surfaces; excessive callus indicates cytokinin overdose
Keep cytokinin selection off this Dracaena
Choose BA over kinetin for commercial Dracaena multiplication; if kinetin is used, limit to 1.3 ppm maximum to avoid toxic effects on meristematic tissue