Cutting Propagation Method of Southern Blueberry

Abstract

The invention discloses a cutting propagation method for southern blueberries. The cutting propagation method comprises the following steps: selecting strong branches of blueberry trees, cutting the strong branches into cuttings with a certain length, and putting the cut branches into a water container for standby application; filling a cutting compartment with a cutting medium, pouring water to wet through for leveling compaction, and naturally drying in the shade; in early August to the end of September, selecting the standby cuttings, enabling the base parts of the cuttings to dip rooting powder, then inserting the base parts of the cuttings into the medium, and keeping the cuttings a certain distance; spraying water for the cut cuttings in a fine spraying mode, and adjusting the times of spraying in a day according to the difference of temperature; keeping the greenhouse humidity being 80-90 percent and substrate humidity being 65-75 percent, and lasting for at least 20 days; the base parts of the cuttings start to grow callus, decreasing the times of spraying in a day, and keeping the medium to a principle 'see dry and see wet'. After at least 50 days of cutting, new roots basically grow out, and new branches and leaves grow well. The propagation method has the advantages of simple steps, high rooting percentage and seedling rate, low cost, high easiness in promotion and the like.

Description

technical field [0001] The invention belongs to the technical field of blueberry propagation, in particular to a cutting propagation method of blueberries. Background technique [0002] Blueberries belong to the genus Vaccinium of the Rhododendronaceae Vaccinium subfamily, and there are more than 400 species, which are widely distributed in the northern hemisphere. my country's blueberry production and cultivation is still in its infancy, and it has gradually developed from Jilin, Shandong, Liaoning and other provinces to the Jiangnan region. Blueberry is a new type of fruit with high nutritional value. It has high economic value and has a good development prospect. However, in industrial production, blueberry propagation has always been a major problem faced by those skilled in the art. Blueberries are generally propagated by cuttings, which have a lower survival rate and higher technical requirements than ordinary small berry fruit trees. Blueberry cuttings have been exte...

AI Technical Summary

Problems solved by technology

[0005] 2. The choice of rooting agent: the previous rooting agent generally used 2000-3000ml / l naphthalene acetic acid, the effect of this rooting agent on blueberry branches is not obvious, and the rooting rate is relatively low

[0007] CN102138529A Chinese patent document mentions a rooting agent for blueberry cultivation composed of naphthaleneacetic acid and indoleacetic acid. It mentions that the rooting agent formula used is naphthaleneacetic acid and indoleacetic acid, and is directly soluble in water, From the physical and chemical properties of naphthaleneacetic acid and indoleacetic acid, they are all solid substances that are insoluble in water and easily soluble in organic solvents. Experiments also show that naphthaleneacetic acid and indoleacetic acid are not fully dissolved in water, and there are precipitated particles. Difficult to achieve uniform dispersion and effective utilization

No. CN102613078 Chinese patent literature mentioned the method of using indole butyric acid as a rooting agent to make blueberries take root quickly. What it adopted was to dissolve indole butyric acid with NaOH and dilute it with water, but experiments showed that single use of indole butyric acid The rooting effect is relatively limited, and there is still precipitation after dissolving with NaOH and adding water to make it volume, and the effect of uniform dispersion cannot be achieved.

In addition, the rooting agent is mainly applied to tissue culture seedlings, but not to cutting branches

The preparation of the rooting agent mentioned in the CN102668853A Chinese patent document is to use water as the dissolving solution, but the water does not fully dissolve the indole butyric acid, and it will settle down after standing for a few minutes, and the uniform dispersion effect cannot be achieved. And peat is used in the rooting medium, but there are many pathogens in the peat medium, if the sterilization is not thorough when used, it will bring serious pest damage to the cutting seedlings and affect the quality of blueberry seedlings

[0008] In addition, the existing rooting agent preparation method generally uses water as a solvent or first dissolves in alcohol and then water to the volume. This method does not consider the full dissolution of the solute and the problem of precipitation after dissolution, which reduces the effectiveness of the rooting agent; Alcohol is dissolved in water to make up the volume, the alcohol is difficult to dissipate, it may cause damage to the root system and the upper part of the root in the cutting, further reducing the effective effect of the rooting agent

[0009] Visible, above-mentioned defective all can influence the application effect of rooting agent and the successful propagation of blueberry at last

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