Preparation method of medium for rapid breeding of Photinia fraseri

Abstract

A preparation method of a medium for rapid breeding of Photinia fraseri belongs to the technical field of plant cultivation and comprises steps of initial medium preparation, enrichment medium preparation and rooting medium preparation. The initial medium is prepared by using MS as a basal medium with the addition of 2.0mg / L of 6-BA, 0.15mg / L of NAA, 0.1% of active carbon, 3% of cane sugar and 0.65% of an agar powder at pH 5.8. The enrichment medium is prepared by using half of MS as a basal medium with the addition of 2.5mg / L of 6-BA, 0.5mg / L of NAA, 3% of cane sugar and 0.65% of an agar powder at pH 5.8. The rooting medium is prepared by using half of MS as a basal medium with the addition of 1.5mg / L of IBA, 0.2mg / L of NAA, 1.5% of cane sugar and 0.65% of an agar powder at pH 5.8. The preparation method provided by the invention can be used to greatly increase the breeding quantity, accelerate the breeding speed and reduce the cost.

Description

technical field [0001] The invention belongs to the field of asexual propagation of trees, and in particular relates to a preparation method of a rapid breeding medium for Photinia fruticosa. Background technique [0002] Photinia fragrans is mostly propagated by cuttings in production. Cuttages generally use branches as propagation materials. The traditional method is to select thick lignified or semi-lignified branches of the year, and cut cuttings about 8-15cm long. The incision is smooth and the upper incision distance The terminal bud is about 1cm, cut off half of the leaves on the top of the strip, and cut off the rest of the leaves. The base of the cut cuttings is treated with a rooting agent and inserted into the substrate to wait for rooting. [0003] First, this method needs a large amount of propagation materials, second, it has a great influence on the growth of the mother tree that is taken, and is unfavorable for tree shape cultivation. Third, it is time-consum...

AI Technical Summary

Problems solved by technology

[0003] First, this method needs a large amount of propagation materials. Second, it has a great impact on the growth of the mother tree that is taken from the material, which is not conducive to the cultivation of the tree shape. Third, when cutting the cuttings, pay attention to keeping the upper incision at a distance of 1 cm from the top bud, which is time-consuming and labor-intensive. Fourth, The reproduction coefficient is low, generally 30% in foreign countries, but only 20% in China