Tissue Culture Banana Plants
Tissue culture (also called micropropagation) is a laboratory technique that produces large numbers of genetically identical, disease-free banana plants from tiny pieces of plant tissue. As a home grower, you won't be doing tissue culture yourself, but understanding it helps you make informed purchasing decisions.
Why Buy Tissue Culture Plants
- Disease-free — The biggest advantage. Tissue culture plants are certified free of Panama disease, Bunchy Top Virus, banana weevils, nematodes, and other pathogens. When starting a new planting, this is the safest option.
- True to type — Genetically identical to the parent variety, with no variation.
- Vigorous — Tissue culture plants often establish quickly and grow vigorously once acclimated.
Disadvantages
- Acclimation needed — TC plants come from sterile lab conditions and need careful hardening off. They are initially very sensitive to direct sun, wind, and low humidity.
- Small size — They arrive as small plantlets that take time to reach a size comparable to a good-sized pup division.
- Cost — More expensive than pups, though prices vary.
Hardening Off TC Plants
- Keep in a shaded, humid location for 1-2 weeks after receiving
- Gradually increase light exposure over 2-3 weeks
- Transplant to a pot with well-draining soil (see Soil and pH) before planting in the ground
- Do not fertilize for the first 2-3 weeks — the delicate roots can be burned easily
- Plant in the ground or final container once the plant has 4-5 well-developed leaves