How to Propagate Dendrobium
Dendrobium, as a rare Chinese medicinal herb and ornamental plant, mastering its propagation techniques is crucial for growers. This article systematically explains four mainstream propagation methods, complemented by real-life operation diagrams, to help you quickly cultivate healthy Dendrobium plants.
Four Core Methods of Dendrobium Propagation
Key Points of Seed Propagation Technique
Select plump and mature capsules for sterilization treatment, soak in a 0.1% potassium permanganate solution for 15 minutes and then dry. Seeds need to be sown in a 25-28°C constant temperature incubator, using a mix of sphagnum moss and pine bark as the growing medium, maintaining 80% humidity, and it takes about 45 days for the seedlings to germinate. Special note: The seed propagation cycle is long, lasting 2-3 years, and requires professional temperature control equipment.
Stem Cutting Insertion Operation Standards
Select two-year-old healthy branches, keeping 3-4 nodes per segment, and apply plant ash to the cut ends for antiseptic treatment. The best insertion medium ratio is pine bark: coconut bran: perlite = 5:3:2, with the insertion depth buried with one node. Key points of environmental control: Maintain a daytime temperature of 25°C and a nighttime temperature of 18°C, spray moistening three times a day, and new roots can be seen after 60 days.
Practical Guide to Division Propagation
Perform division before spring sprouting or after autumn flowering, selecting mother plants with more than five aerial roots. Keep the complete root mass during division, and each clump should have 3-5 pseudobulbs. Place in a scattered light environment for 2 weeks after potting, and using EM bacterial solution to water the roots can increase the survival rate to over 90%.
Technical Analysis of Tissue Culture Propagation
Use a formula of MS medium + 1.0mg/L NAA + 0.5mg/L 6-BA, select the apical meristem for sterilization and inoculation. The culture room needs to maintain a constant temperature of 22°C, a light intensity of 2000lux, and a 16-hour daily lighting cycle. The acclimatization stage of tissue-cultured seedlings is particularly critical, requiring a gradual reduction in humidity for environmental adaptation.