Cutting propagation method for splash-ink dendrobe old stems

Abstract

The invention discloses a cutting propagation method for splash-ink dendrobe old stems. The method comprises following steps: utilizing two-year or perennial splash-ink dendrobe pseudobulb as material; utilizing a high-temperature high-humidity condition for drought stress, forming buds induced on old stems, carrying out final-period management and seedling transplant to culture new excellent parental plant. The method is utilized for obtaining cuttage seedlings with excellent parental characters. From March to May, seedlings grow. From October to December, flowers bloom. New stem sprouts germinate for 12 to 25 days. Each pseudobulb has 1 to 4 buds of more than 90% germination rate. Compared with the aseptic sowing and tissue culture propagation, the method has following beneficial effects: the method is stable in inheritance, short in culture period, fast in florescence, low in production cost, easy in operation and easy in promotion; new plants can be cultured by effective utilization of aging pseudobulb so that nutrient consumption of new pseudobulb by utilizing aging pseudobulb is reduced and service lifetime of seedlings is prolonged; and therefore, a new way is provided for splash-ink dendrobe seedling propagation and effective utilization of old stems.

Description

technical field [0001] The invention belongs to the technical field of vegetative propagation of Dendrobium splashing ink, in particular to a cutting propagation method of old stems of Dendrobium splashing ink. Background technique [0002] "Pomo" Dendrobium (Dendrobium.Compactum White "Mutation") is a Dendrobium orchid hybrid introduced from Thailand in recent years. The petals are purple with white stripes, the number of flowers is 10-30, the flower diameter is 6-8cm, and the plant height is 20-30cm. The natural flowering period is May and September, and the group flowering period is 45-60 days. "Pomo" Dendrobium has a unique flower color, long flowering period and large amount of flowers. It is loved by the public and orchid lovers. It is currently a rare type of high-quality potted orchid. Dendrobium "Pomo" has been introduced for a short time in my country, and there are very few reports on reproduction. Currently, Dendrobium orchids are propagated mainly by aseptic se...

AI Technical Summary

Problems solved by technology

"Pomo" Dendrobium aseptic sowing requires certain aseptic culture conditions, the operation is complicated, and the separation of offspring is serious, and it is difficult to obtain offspring with neat traits.

It takes a long time for tissue culture to establish a tissue culture rapid propagation technology system, and the technical content is high, which is difficult for flower growers to master, which is not conducive to technology promotion

Branch propagation can easily lead to the accumulation and spread of viruses, resulting in the reduction of ornamental quality

At the same time, aseptic sowing and tissue culture of "Pomo" Dendrobium can easily cause offspring to return to their ancestors and obtain white-flowered offspring, which significantly reduces the ornamental value and economic value.

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