Large-scale seedling raising method of rhododendron

Abstract

The invention discloses a large-scale seedling raising method of rhododendron. The method comprises the steps of seed collecting, seedbed preparing, seeding and germination period managing, seedling period managing and seedling transplanting. According to the method, the characteristics of being high in regeneration capacity, capable of growing in a creeping mode, good in moisture retention and the like of hypnum plumaeforme are utilized, therefore, a high-humidity small environment is provided for seed germination and seedling growth, and occurring and spreading of diseases can be inhibited; the method is simple and easy to operate, the seedling rate of rhododendron seeding and seedling raising can be significantly increased, and the seedling quality of rhododendron seeding and seedling raising can be significantly improved; meanwhile, the water content in the seedling period is decreased, the disease managing difficulty is reduced, the cost is reduced, and the method is very suitable for large-scale seedling raising of the rhododendron.

Description

technical field [0001] The invention belongs to the technical field of plant sowing and propagation, and in particular relates to a method for sowing and raising rhododendrons by using a preferred propagation substrate. Background technique [0002] Rhododendron generally refers to Rhododendron L. plants in the family Rhododendron, and is one of the three major alpine flowers in the world and one of the top ten traditional Chinese flowers. Rhododendrons are widely distributed in Asia, North America, and Europe; China is the origin and geographical distribution center of rhododendrons in the world. There are 571 native species, including 409 endemic species, but they are mainly distributed in the high-altitude areas of Yunnan, Tibet, and Sichuan. Except Xinjiang and Ningxia, it is distributed in other provinces and autonomous regions. [0003] Rhododendron is famous all over the world for its wide variety, gorgeous flowers and rich colors. At the same time, it is also popula...

AI Technical Summary

Problems solved by technology

[0004] Rhododendron propagation methods mainly include cuttings, grafting, sowing, and tissue culture and rapid propagation. However, for the large-leaved evergreen rhododendrons native to high-altitude mountainous areas, it is difficult to root from cuttings, the success rate of grafting is low, and the reproduction coefficient is low. , it is difficult to meet the needs of rhododendron industrialization; tissue culture and rapid propagation is a technology that has developed rapidly in recent decades. Although it can greatly increase the reproduction coefficient, the rooting technology of evergreen rhododendron tissue culture seedlings has not been effectively solved, and the seedling rate is low. , especially tissue culture technology has strict requirements on facility conditions, cumbersome procedures and high cost, and it is difficult to effectively promote it in the production line

Sowing seedlings has the advantages of high reproduction coefficient, good seedling root system, and strong cultivation adaptability. It is an effective domestication method for high-altitude rhododendrons to gradually adapt to low-altitude environments, and it is also an effective way for new varieties of rhododendrons to be bred. There are still many problems: the seeds of rhododendron are extremely small, the endosperm nutrients are few, the seedlings grow very slowly (1-year-old seedlings are 2-5cm larger), delicate, the environmental requirements are almost harsh, and management is difficult; and there are many diseases , spread quickly, and the seedling rate is low, which seriously restricts its industrialization development

In order to speed up the domestication, domestication and industrialization of rhododendrons in my country, although a lot of research has been carried out in China in recent years, due to the breakthrough in the research and development of seeding substrates, the slow growth of seedlings, difficult management, and low seedling rate have not been reported. can effectively solve

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