Propagation method of lithocarpus polysachyus rehd young stock grafting container-grown seedling

Abstract

The invention discloses a propagation method of a lithocarpus polysachyus rehd young stock grafting container-grown seedling. The propagation method comprises the operation steps of young stock cultivation and grafting propagation, and is characterized in that a common lithocarpus polysachyus rehd seed is selected, is immersed for one day before being sowed, is dressed by a dipterex solution and then is stored in wet sand, the germinant seed is taken out from the wet sand and is used for culturing a stock in a container for seedling growth, after the nursery stock comes out of the ground, water and fertilizer management and plant diseases and insect pests prevention and control are reinforced, when the ground diameter of the young seedling reaches up to more than 0.3cm, the young seedling can be used for grafting, a half lignified branch is collected from an excellent lithocarpus polysachyus rehd seed tree and serves as a cutting for grafting, a cut-grafting method is adopted for grafting, when young sprouts come out from the cutting, a plastic film is uncovered, sprouts growing on the stock are timely removed, and fertilization application is stopped when winter comes, so that the grafted seedling is enabled to be fully lignified, and the grafted seedling can be taken out of a garden for forest planting in the spring next year. The method is capable of keeping the excellent characteristics of the seed tree, is high in survival rate, is simple and convenient, is easy to popularize, and is suitable for large-scale production and operation for a leaf forest of dwarfing and intensively cultivated lithocarpus polysachyus rehd.

Description

technical field [0001] The invention belongs to the technical field of plant vegetative propagation, and relates to a propagation method of Polyacaceae, in particular to a propagation method of grafted container seedlings of Polyacaceae young stock. Background technique [0002] Tachiko ( Lithocarpus polystachyus ), also known as multi-sui, sweet tea, evergreen tree or small tree, 7~15m high, is a tropical and subtropical tree species, distributed in the provinces south of the Yangtze River, and also in India and Thailand. Polygonaceae is a precious medicinal tree species. The medicinal components of Polygonaceae are mainly flavonoids, whose content is greater than 30%, among which dihydrochalcone glycosides phlorizin and trilobatin are the focus of attention . The flavonoids of Polyacae flavonoids have strong anti-oxidation and various health care functions. In recent years, studies have found that Polyacaceae and its extracts have obvious effects of lowering blood sugar...

AI Technical Summary

Problems solved by technology

[0004] At present, the multi-spike Kedo is mainly propagated by seeds, but the seed propagation needs to go through the storage and germination process of more than 4 to 5 months, and the seed germination is not uniform, and the offspring propagated by seeds are highly differentiated, and it is difficult to maintain the excellent traits of the female parent.

However, the conventional cutting propagation method of Polyacaceae is cultivated, the breeding cycle is long, the rooting rate is unstable, and the survival rate is not high, which is not conducive to the large-scale production and development and application of the propagation of Polyacaceae.

At present, most of the raw materials for "Sweet Tea" of Duosuike come from naturally growing Duosuike sweet tea plants. However, due to scattered resources, tall trees, and time-consuming and labor-intensive leaf picking, the large-scale development of Duosuike sweet tea is seriously restricted.