The Treatment Method for Old Cymbidium Tuber
Main content introduction: This article discusses the content related to Cymbidium orchids, specifically the treatment method for old Cymbidium tubers. If there are any mistakes, corrections are welcome!
Old Cymbidium tubers generally refer to those with roots but no leaves, with leaves but no roots, or with no roots and leaves. These tubers are mostly peeled off during potting. Originally, they were considered waste, but for the more valuable Cymbidium orchids, it's worth utilizing these old tubers to allow the remaining dormant buds to sprout again, which is a method to increase the germination rate of orchids.
Specific steps:
1. Timing: It should be done in late spring to early summer when the daytime temperature is stable at 15°C or above.
2. Trim the old tubers, after removing the unhealthy ones, group 2-3 tubers together, remove the rotting roots and withered leaves, and be careful not to damage the buds.
3. Soak and disinfect: Place the old tubers in a 1000-fold solution of Methylethylthiourea for 10 minutes, then remove and dry them.
4. Drop the diluted bud-promoting agent on the corms and let them dry before planting.
5. Soak the disinfected sphagnum moss in a root-promoting solution and wrap it around the old tubers.
6. Place them in a pot, fill the sides with planting stones, and bury the corms 1-2 centimeters deep, then keep them in a cool and well-ventilated place for care.
7. Water normally, avoiding excessive wetness or dryness, do not fertilize, and new buds should be visible after 20 days. Some may take longer to sprout, so patience is required.
8. Once the new buds have leaves, they can be placed in a well-ventilated and sunny area and gradually exposed to light. Do not fertilize the roots, instead, apply foliar fertilizer, dilute, thin, and light to avoid burning the new roots and leaves, which would be counterproductive.
9. In the second spring, remove the orchid plants, discard the withered old tubers, and cultivate and manage them as usual, like other orchid plants.
It must be noted that the orchid plants obtained by this method are ultimately young and weak seedlings, suitable only for propagation of valuable orchids for seed retention. For ordinary orchids, there's no need to go to such lengths.
The above explanation on the treatment method for old Cymbidium tubers is brought to you, hoping it brings a little help to your life!