Poinsettia cutting propagation method

Abstract

The invention provides a poinsettia cutting propagation method. The method comprises the steps of cutting an old rootstock with the diameter of more than 0.5cm into root sections with the length of 10cm, covering the cut-off position with dry charcoal powder, plant ash or dry soil powder, and inserting the root sections after being slightly dried into cultivation soil. When the root sections are inserted, about 1cm root section is remained out of the soil, the root section is inclined towards the north direction to form a 80-angle with the ground, so that the root section can be promoted to be sprouted rapidly, the root section does not need to be shaded after the cutting propagation, and a novel plant can be propagated in about one month. When the novel plant grows to 10cm, the novel plant can be transplanted in a pot, the novel plant can be applied by flower chemical No.12 with the concentration of 1.3 to 2.0 g / L every weak after the seedling exercise period of 5 days to one week, and then the novel plant can be normally maintained. By adopting the poinsettia cutting propagation method, the growth and development of poinsettia cutting wood can be obviously promoted, the survival rate and branch growth rate of the poinsettia cutting wood can be increased, and the ornament value of the poinsettia can be improved.

Description

technical field [0001] The invention relates to the technical field of plant cultivation and propagation, in particular to a method for poinsettia cutting propagation. Background technique [0002] Poinsettia (scientific name: Euphorbia pulcherrima Willd.et Kl.), aliases: Christmas flower, orangutan wood, Laolaijiao, etc. Shrubs, roots terete, very branched. Stems erect, glabrous. Leaves alternate, ovate-elliptic, long-elliptic or lanceolate, 6-25 cm long, 4-10 cm wide, pubescent or glabrous on the leaf surface, pilose on the back of the leaf. Poinsettia is a short-day plant that likes warmth, humidity, and sunshine. Native to Central America, widely cultivated in the tropics and subtropics, and distributed in most provinces and cities in China. It can be used as a medicinal plant to promote blood circulation, reduce phlegm, and reduce swelling. Poinsettias are brightly colored and have a long flowering period, which coincides with Christmas, New Year's Day, and Spring ...

AI Technical Summary

Problems solved by technology

The commonly used poinsettia cutting technique is to cut the cuttings with sufficient water content in the early morning, cut the cuttings into flat or inclined planes, and try to make the cuts 0.5 cm below the basal nodes of the buds. The white gelatinous emulsion flowing out of the cuts should be cleaned with clean water , and apply fresh clay or plant ash to the incision before cutting, or dip it in rooting powder to promote rooting; you can also use 0.1% potassium permanganate solution to dip the cut poinsettia cuttings base in the solution After about 10 minutes, the base is cut immediately after the above method. The depth of the cuttings inserted into the substrate is generally not more than 2.5 cm. The branches cut by this method need to be shaded and are prone to water loss and wilting, which reduces the survival rate and affects the propagation speed of poinsettia.

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