Podocarpus macrophyllus cuttage breeding method

Abstract

A Podocarpus macrophyllus cuttage breeding method comprises the following steps: 1, selecting cuttings: selecting 10-15cm semi lignification Podocarpus macrophyllus branches with heels, removing blades on the lower portion of the branches, and keeping the upper 2 / 3 blades; 2, cutting treatment: using a knife to trim and smooth pedicles of the selected Podocarpus macrophyllus branches, immersing the lower 1-2cm of the branch into a naphthalene acetic acid auxin solution with concentration of 300mg / l, or spraying auxin on the surface of a seedbed at the rate of 500ml / square meter; 3, seedbed selection and processing; 4, drill holes; 5, cuttage; 6 post-cuttage management; 7, transplanting; 8 trimming moulding. The Podocarpus macrophyllus cuttage breeding method uses semi lignification branches with heels, so rooting is easier; the cuttings are disinfected and processed by auxin, and fertilization, weeding and insect control are timely carried out, thus improving Podocarpus macrophyllus cuttage survival rate.

Description

technical field [0001] The invention relates to the field of cuttings of landscaping seedlings, in particular to a method for cutting and propagating Podocarpus pine. Background technique [0002] Podocarpus, alias Tushan, Podocarpus family, Podocarpus is an evergreen coniferous tree, up to 20 meters, diameter at breast height of 60 cm; bark gray or taupe, shallow longitudinal fissures, falling off in thin flakes; branches spread or slant , denser. Leaves spirally inserted, strip-lanceolate, slightly curved. Male cones are spiky and axillary, with several triangular bracts at the base; female cones are solitary in leaf axils, stalked, with a few bracts at the base, seeds ovoid, apex round, fleshy aril purple-black when ripe, with White powder, fleshy cylindrical seed holder, red or purple, flowering period from April to May, seeds mature in August to September; Podocarpus is distributed in many provinces and regions of China, cultivated in gardens as ornamental trees, but ...

AI Technical Summary

Problems solved by technology

The method of cutting propagation has a history of more than 2,000 years in our country and has been widely used in production practice. However, in the cutting propagation process of Podocarpus pine, it often occurs that Podocarpus pine is affected by diseases and insect pests or other external factors, resulting in a low survival rate.