Orchids and other plants that are difficult to propagate are commonly grown by

• A. Tissue culture
• B. Budding
• C. Layering
• D. Seed propagation

Answer: (A)

Propagating orchids and other hard-to-propagate plants is most effectively done through tissue culture, an in vitro method that starts from a small piece of plant tissue and multiplies it into many uniform plantlets under sterile conditions. This approach is powerful because it yields large numbers quickly, keeps plants true-to-type, and produces disease-free stock. Orchids are particularly suited to tissue culture since their seeds are tiny and germination in nature depends on specific fungal partners, while traditional vegetative methods can be slow or unreliable. By culturing orchid tissue, you can clone material efficiently and reliably. Other methods—budding or layering—don’t offer the same speed, uniformity, or disease control for these plants, and seed propagation, while possible, introduces genetic variation and slower production.