A kind of Rhododendron seedling breeding method

Abstract

The invention discloses an azalea seedling culture method. The azalea is subgenus hymenanthes genus rhododendron subsection azalea. The seedling culture method comprises the following steps of using a mixture of peat soil and perlite as a substrate; filling the substrate into a tray, and tightly and compactly pressing the substrate; putting the tray into a water pool; directly seeding and spreading clean seeds onto the surface of the substrate, wherein the seeding density is 1 to 3 seeds / cm<2>; after sowing the seeds, covering 3 to 6mm of soil; after the seeding, putting the tray in a natural illumination environment with the temperature being 21+ / - 2 DEG C and the humidity being 90+ / -2 percent until the azalea sprouts; after the azalea sprouts, performing light shielding treatment, wherein the light shielding rate is 90 percent or above. The azalea seedling culture method realizes high sprouting rate and high seedling rate of the azalea; the genus rhododendron subsection sprouting rate is as high as 91 percent; the seedling rate is as high as 85 percent. The azalea seedling culture method has the advantages that simplicity is realized; the implementation is easy; the scale breeding of the azalea is realized; the seedling rate is high; the production and the popularization are facilitated.

Description

technical field [0001] The invention belongs to the field of plant propagation and relates to a method for growing seedlings of rhododendrons. Background technique [0002] According to the first and second subvolumes of volume 57 of "Flora of China", there are 251 species of rhododendrons in the subgenus Rhododendron evergreen, accounting for 46.3% of the 542 species of rhododendrons in my country. [0003] Alpine Rhododendron is a world-renowned ornamental flower. There are two-thirds of the world's wild species distributed in my country, but there is no mass production in the domestic flower market. Alpine Rhododendron is a subtropical mountain or plateau plant, most of which are native to low-latitude regions in southwestern my country, mainly distributed in areas above 500-4300m above sea level, only a few species grow in low mountains and hills, and their site conditions are different. The growth habit of rhododendron is affected by various site conditions for a long ...

AI Technical Summary

Problems solved by technology

The method of seed propagation is simple and easy, but there are obvious defects: the seed emergence rate is low, the plant growth is slow, and it is rarely used in production

[0013] 1. The reproduction workload is heavy and the technology is difficult;

[0014] 2. It is not conducive to large-scale production and difficult to promote;

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