A non-test tube rapid propagation method for colorful-leaf osmanthus fragrans Princess Ziyan

Abstract

The invention provides a non-test tube rapid propagation method for colorful-leaf osmanthus fragrans Princess Ziyan. The method comprises the steps of building a young cutting orchard, performing field planting of 2-generation cutting seedlings, and cultivating rapid propagation scions by using specific rejuvenation technology; processing cuttings by using a special rooting agent to accelerate rooting of the cuttings; performing rapid propagation and seedling breeding by using a soilless medium formula and non-woven fabric seedling breeding containers to improve the quality of rapid propagation seedlings and increase the survival rate; integrating a mating carbonic water producing process into an intelligent spraying system and using carbonic water to supplement carbon sources required by the rapid propagation seedlings and maintain proper temperature and humidity conditions; using a special nutrient solution formula and supplementing trace growth elements to promote quick rooting and seedling formation of cuttings; using special seedling hardening technology to shorten a seedling recovering period of transplanting of the rapid propagation seedlings. The method has the advantages that the breeding cycle of seedlings is short and 3-4 generations can be bred annually; the rooting rate and the survival rate can reach up to 95% and above; production costs are low and operation is simple and practical; the method can be widely applied to both small-scale and large-scale planting for industrialized development of trees and flowers.

Description

[0001] Technical field: [0002] The invention belongs to the technical field of agriculture, and relates to a method for asexual propagation of common woody plants, in particular to a non-test-tube rapid propagation method of Osmanthus fragrans 'Ziyan Princess'. Background technique [0003] Plant non-test tube rapid propagation is a plant breeding method between conventional cuttings and tissue culture. It generally includes an innovative and integrated technical system such as the construction of ear gardens, the establishment of greenhouses, seedling cultivation methods, rooting agents, and the use of nutrients and fungicides. It is characterized in that the amount of cuttings is small, the propagation speed is fast, the propagation cost is low, the regenerated seedlings are robust, and the phenotype is stable, which is suitable for the propagation of most plants. Therefore, for plants with low cutting propagation rate of regenerated seedlings, unstable quality, or slow pr...

AI Technical Summary

Problems solved by technology

The method is by constructing a young ear-picking nursery, planting second-generation cutting seedlings (the seedlings that are propagated again by using the first cutting seedlings), and applying the re-younging technology to cultivate young earings, so as to improve the ability of cuttings to regenerate into plants; The gas-liquid mixing pump produces carbonated water to supplement the carbon source required for rapid propagation of seedlings to meet the energy demand for rooting, achieve rapid rooting and development of cuttings, and solve the problems of greenhouse effect and gas escape caused by supplementing carbon dioxide; through the use of special rooting agents , improve the rooting ability of cuttings, promote the development of root system, and increase the rooting rate; through the use of special nutrient solution, the growth and development of cuttings can be accelerated, and the quality of seedlings can be improved, so as to realize a non-test-tube rapid growth rate with short rapid propagation period, high multiplication coefficient and low production cost. multiplication technology