Cuttage method of poinsettia

Abstract

The invention discloses a cuttage method of a poinsettia. The method comprises the steps of disinfection, rooting agent preparation, gel rooting agent preparation, cuttings collection, cuttage and post-cuttage management, wherein garden soil, vermiculite, small granular perlite, river sand and soil carbon are taken and mixed to form a cuttage substrate; the cottage is conducted after the disinfection by formalin and potassium permanganate; the compound rooting agent is added into a mixed solution of polyvinyl alcohol and glycerin to obtain the gel rooting agent; the cuttage can be conducted after the cuttings are soaked in the gel rooting agent. The method has the advantages that a rooting agent film exposed outside the substrate of the cuttings after the cuttage can reduce transpiration of the cuttings, reserve water, and improve vitality of the cuttings; the rooting agent film inserted in the substrate has relieving and water retention effects on the rooting agent, can make the rooting agent continuously act on the cuttings, improve rooting ability, and improve cuttage survival rate; the cuttage method is simple and easy to implement, can be used for propagation and growing seedlings of the poinsettia in a large scale, and has a high marketing value.

Description

technical field [0001] The invention relates to the field of ornamental plant propagation, in particular to a poinsettia cutting method. technical background [0002] Poinsettia: shrub. Root terete, very much branched. Stems erect, 1-3 tall, 1-4 cm in diam., glabrous. Leaves alternate, ovate-elliptic, long-elliptic or lanceolate, green, margin entire or lobed or wavy lobed, leaf surface pubescent or glabrous, leaf back pilose; bracts 5-7 Pieces, narrowly elliptic, 3-7 cm long, 1-2 cm wide, usually entire, rarely shallowly wavy at the margin, vermilion. The inflorescences are arranged in several cymes on the top of the branches; the involucre is urn-shaped, light green, with toothed edges and 5-lobed, lobes triangular, glabrous. Capsule, triangular-shaped, smooth and glabrous. Seeds ovoid, gray or light gray, subsmooth; no caruncle. The flowering and fruiting period is from October to April of the following year. Native to Central America, widely cultivated in the trop...

AI Technical Summary

Problems solved by technology

[0004] The Chinese invention patent of CN 101427629 B discloses a cuttage method of poinsettia. The invention method is improved, and nutrition and light are strengthened on the mother plant one month before ear picking, and the lateral young shoots of poinsettia are selected to make cuttings and cuttings. Peat soil is used as the cutting substrate, and the high-temperature sterilized red mud plus indole acetic acid is used as the rooting agent for cutting. Methods The red mud plus indole acetic acid was selected as the rooting agent, the red mud will inhibit the rooting of poinsettia fragments, which is not conducive to its survival