Rhododendron simiarum Hance seed propagation method

Abstract

The invention discloses a rhododendron simiarum Hance seed propagation method. The method comprises steps as follows: a clay pot is filled with a mixed substrate containing humus soil and vermiculite in a volume ratio being 3:1; seeds collected in the previous year are uniformly sown on the surface of the substrate in the period from the early April to the middle of May, and then the upper layer of the seeds is uniformly covered with a sheared living moss layer; the seeds are watered sufficiently and covered with a plastic film for heat and humidity preservation, and water is replenished twice every week in a germination period; the film is uncovered after the seeds germinate, the seeds are subjected to 50%-75% sun-shade and normal-temperature maintenance management, and a fungicide is sprayed once every two weeks; seedlings after cultivated for one year are transplanted to trays for maintenance management in greenhouses, or the seedlings after cultivated for 2-3 years are directly transplanted to plastic greenhouses or outdoor nursery gardens for field management. The method is simple to operate and convenient to implement, can remarkably increase the seedling rate of rhododendron simiarum Hance, improve seedling quality, reduce difficulties in water management and disease control at the seedling stage and reduce cost, and can be applied to large-scale seedling cultivation and industrial development of the rhododendron simiarum Hance.

Description

technical field [0001] The invention belongs to the technical field of plant propagation, and in particular relates to a seed propagation method of rhododendron erinaceus. Background technique [0002] Hericium Hericium ( Rhododendron simiarum Hance) belongs to the Rhododendron family (Ericaceae) Rhododendron ( Rhododendron L.) Evergreen Rhododendron subgenus (Subgen. Hymenanthes), evergreen shrubs to small trees; 3-10m high, large leaves, thick leathery, yellow-green leaves on the front, light brown hairs on the back; racemose umbrella The inflorescence is terminal, with 5-9 flowers, milky white to pink flowers, with purplish red spots on the throat, open from April to May, and is an excellent ornamental plant with good flowers, leaves and plant shape. This species has a wide distribution area and is produced in Jiangxi, Anhui, Fujian, Guangdong, Guangxi, Guizhou, Hainan, Zhejiang, and southern Hunan. It is born on hillsides, mountaintops and under forests at an altitu...

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Problems solved by technology

[0004] Sowing seedlings has the characteristics of high reproduction coefficient (large number of Rhododendron seeds), good root system of seedlings, and strong cultivation adaptability. There are still many problems: rhododendron seeds are extremely small, chaff-like, with few endosperm nutrients, and the seedlings grow very slowly (1-year-old evergreen rhododendron seedlings are 2-4 cm taller), delicate; Avoid strong light and dryness during the growth process. Short-term drought will lead to dehydration and death of seedlings. Excessive humidity will easily cause the occurrence and spread of an important soil-borne disease in the seedling stage-damping-off, resulting in seedling failure.

In order to speed up the process of introduction, domestication and industrialization of Rhododendron erinaceus in my country, with the support of several special projects for Rhododendron erinaceus, in recent years, we have systematically carried out the research and development of substrates for seed propagation of Rhododendron erinaceus and the research on seedling cultivation technology, and selected a suitable Its new substrate for sowing seedlings has successfully solved the problems of slow seedling growth, difficult management, and low seedling rate

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