Rapid breeding method for tissue culture seedlings of catalpa bungei

Abstract

The invention discloses a rapid breeding method for tissue culture seedlings of catalpa bungei. The method comprises the following steps: building a winter-warming sunlight greenhouse seeding-raising shed, building seedling-raising ponds, building an atomizing automatic control system, processing bottles for tissue culture seedlings of catalpa bungei, inserting bottles for the tissue culture seedlings of catalpa bungei into the seeding-raising ponds for seedling-raising management, planting tissue culture seedlings of the catalpa bungei hardening seedlings to harden the tissue culture seedlings in nutrition pots, and planting grown seedlings on a large field. The method helps resolve problems such as long culture time and high culture cost. The overall seedling raising process takes 30-35 days including culture of the tissue culture seedlings in the seedling-raising ponds and seedling hardening in a transition shed. The commonly-used method of rooting and hardening the tissue culture seedlings of catalpa bungee takes 120-150 days. By contrast, the duration is greatly shortened. The survival rate of seedling breeding is up to over 95%. In terms of the survival rate, the rapid breeding method for the tissue culture seedlings of catalpa bungee has a great improvement.

Description

technical field [0001] The invention belongs to the technical field of breeding of forestry nursery stock plants, and in particular relates to a rapid breeding method for tissue culture seedlings of catalpa. Background technique [0002] Traditional grafting techniques and tissue culture techniques are mainly used in catalpa sapling breeding methods at present. Traditional catalpa grafting technology takes a long time to cultivate catalpa saplings. Generally, it is necessary to cultivate the catalpa rootstock required for grafting first, and then use a good variety of catalpa scion for grafting. From cultivating the rootstock to cultivating the grafted catalpa seedlings, It generally takes 2 years to transplant the grafted catalpa saplings into the field, which is not suitable for the rapid development of modern forestry production. Moreover, limited by grafting time, weather, and seasons, catalpa tree grafting can only be carried out in spring and autumn. However, it take...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem of long cultivation time and high cost of catalpa tissue culture seedlings, the present invention provides a rapid breeding method of catalpa tree tissue culture seedlings. The method of the present invention is constructed through the construction of seedling cultivation sheds in a warm-winter type solar greenhouse-construction of nursery ponds- Construction of Miwu automatic control system - treatment of catalpa tissue culture bottle seedlings - inserting catalpa tree tissue culture bottle seedlings into nursery ponds for seedling management - planting in nutrient pots and hardening - steps for seedlings to be planted in large fields