CN111280038B - Method for quickly obtaining primula denticulata hance old stake seedlings - Google Patents

Abstract

The invention belongs to the technical field of plant cultivation, and particularly relates to a method for quickly obtaining primula tabacum hance old stake seedlings. The method comprises the steps of rejuvenating seedlings of Primulina tabacum Hance and changing pots, and controlling water in a specific mode. By the method, the forming age limit of the old stake seedlings can be shortened, the appearance of the old stake seedlings is enriched, the problem of long period is solved, and the bonsai material with variable forms is provided.

Description

Method for quickly obtaining primula denticulata hance old stake seedlings

Technical Field

The invention belongs to the technical field of plant cultivation, and particularly relates to a method for quickly obtaining primula tabacum hance old stake seedlings.

Background

The old stump is an old plant with an obvious trunk or branch, is old and elegant, is interesting and natural, is very in line with the current life concept that people eager to return to nature and pursue wild interests, is made into potted plantlets or potted landscape decorative homes with different styles, is fashionable, natural and interesting, is especially attractive and new for people who have net friends to introduce the cultivation forms of the old stump in Japan, Korea and Europe and America into China, but the old stump needs 'yearly work' after all and can be formed only after a certain time accumulation, so the old stump in the true sense is not everywhere.

Most bonsai materials are woody plants, herbaceous plants are rare, primula gracilis is used as herbaceous plants, is various in variety, wide in adaptability, strong in resistance (drought resistance, barren resistance, salt and alkali resistance, disease and insect resistance, heat resistance and the like), has high ornamental value, and can form old stakes, so that the characteristic provides basis and advantages for the development of primula gracilis into bonsai materials. In addition, the leaves and flowers of the Primulina plant have great uniqueness compared with other bonsai plants: the veins are silvery white or purple, the flowers are dense, flowers can bloom all the year round, the flowering period of each group is as long as about 35d, and if the leaves are developed as commodity flowers, the five-first, eleven and spring festival can meet the requirements.

Disclosure of Invention

The invention provides a method for quickly obtaining the primula tabacum hance old stake seedlings, which aims to solve the problem of long production period. The method is simple, the production cost is low, and the market competitiveness is improved.

In order to achieve the purpose, the technical scheme of the invention is as follows:

a method for rapidly obtaining primula tabacum hance old stake seedling comprises rejuvenating primula tabacum hance seedling, changing pots, and controlling water;

the water control method specifically comprises the following steps: a) when the substrate is dried completely and the leaves at the outermost circle of the plant begin to wither, soaking the pot; b) repeating step a) until primulina moschata stem grows and lignifies.

The invention discovers that the leaves and stems of primula denticulata can be stressed by adopting the water control method, so that the leaves fall off in advance, and the stems adapt to the external environment in advance, so that the lignification phenomenon can be rapidly caused.

Preferably, the primulina tabacum seedling is obtained by a half-leaf cutting and petioless cutting propagation method.

The primula denticulata hance generates the largest number of sub-plants in a half-leaf cutting and petiole-free cutting mode, new plants grow together during pot changing and seedling reviving, more forms are provided for old piles formed later, and compared with a pot-one-plant mode, the old pile seedlings combined by multiple plants are richer in mood and interest.

The "half-leaf-inserted petiole-free" in the invention specifically means: cutting off the leaves, and cutting half without leaf stalks.

Preferably, the temperature is controlled to be 25-30 ℃ and the air humidity is controlled to be 80-90% when the cutting propagation is carried out.

Preferably, when the cutting propagation is carried out, the matrix is a mixture of the matrix and the cutting propagation medium in a volume ratio of 1: (0.8-1.2) a mixture of turf and perlite; more preferably, the volume ratio of the turf to the perlite is 1: 1.

preferably, when the seedling is revived, the relative humidity of the substrate and the air is controlled to be 60-90%, and the temperature is controlled to be 15-28 ℃.

Preferably, when the seedling is carried out, the matrix is a mixture of 3: (1.8-2.2) a mixture of turf and perlite; more preferably, the volume ratio of the turf to the perlite is 3: 2.

preferably, the seedling recovering time is 3.5-4.5 months; more preferably 4 months.

The invention further explores the time interval of the pot soaking to better control the degree of leaves and matrix, and preferably, the pot soaking is carried out every 18-22 days during the water control period, so that the method is more beneficial to the formation of the primula denticulata hance old stake seedlings.

Preferably, the water control is carried out under the illumination intensity of 20-30.07 KLX.

Preferably, after the old stake seedling is obtained, a plurality of leaves are picked off at a proper position to grow buds, so that the young shoots can be conveniently shaped later, and then the normal management of dry and wet is carried out.

Preferably, the container for cutting propagation is a hole disc with the height of 50-60 mm, the inner diameter of 15-25 mm and the outer diameter of 35-45 mm;

in a preferred technical scheme, the container for cutting propagation is a 72-hole plug tray with the height of 55mm, the inner diameter of 20mm and the outer diameter of 40 mm.

Preferably, the container for seedling revival is a flowerpot with the height of 90-110 mm, the inner diameter of 70-90 mm and the outer diameter of 100-120 mm.

In a preferred technical scheme, the container for recovering seedlings is a plastic flowerpot with the height of 100mm, the inner diameter of 80mm and the outer diameter of 110 mm.

As a preferred technical scheme, the method of the invention comprises the following steps:

(1) cutting propagation: the mode of inserting half leaves without leaf stalks is adopted, a hole disc with the height of 50-60 mm, the inner diameter of 15-25 mm and the outer diameter of 35-45 mm is used as a container, and the volume ratio is 1: (0.8-1.2) using a mixture of turf and perlite as a substrate for cutting propagation; controlling the temperature to be 25-30 ℃ and the air humidity to be 80-90%;

(2) seedling revival: after the seedlings take roots, transplanting the seedlings to flowerpots with the height of 90-110 mm, the inner diameter of 70-90 mm and the outer diameter of 100-120 mm, wherein the volume ratio is 3: (1.8-2.2) taking the mixture of the grass carbon and the perlite as a matrix, controlling the relative humidity of the matrix and air to be 60% -90%, controlling the temperature to be 15-28 ℃, and rejuvenating seedlings for 3.5-4.5 months;

(3) controlling water and picking leaves: when the growing space of seedlings is not enough and the pots need to be changed for the second time, controlling water and picking leaves under the illumination intensity of 20-30.07 KLX;

the water control method specifically comprises the following steps: a) when the substrate is dried completely and the outermost circle of leaves of the plant begin to wither, removing the withered leaves and carrying out pot soaking; b) repeating step a) until primulina tabacum hance stem grows and lignifies;

after the old pile is obtained, several leaves are picked off at proper positions to make it grow small buds.

The above-described preferred embodiments can be combined by one skilled in the art to provide preferred embodiments of the present invention.

The invention has the following beneficial effects:

by the method, the primula denticulata old stake seedling with excellent form can be quickly obtained in about 10-12 months, the age limit of the old stake seedling is shortened, the appearance of the old stake seedling is enriched, the problem of long period is solved, and the bonsai material with various forms is provided.

Drawings

FIG. 1 shows the result of culturing the old seedlings of Primulina tabacum Hance in example 1 of the present invention;

FIG. 2 shows the results of culturing the old seedlings of Primulina tabacum Hance of comparative example 1 according to the present invention.

Detailed Description

The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

The Primulina tabacum Hance of the present invention may be the common Primulina tabacum Hance such as Hechi Primulina tabacum Hance, Yongfu Primulina tabacum Hance, and Primulina septemlobus Hance, and for the sake of comparison, the following examples will be described with the example of Yongfu Primulina tabacum Hance.

The examples do not show the specific techniques or conditions, according to the technical or conditions described in the literature in the field, or according to the product specifications. The reagents or instruments used are conventional products available from regular distributors, not indicated by the manufacturer.

Example 1

The embodiment provides a method for quickly obtaining old stake seedlings of Primulus rufipogoides, which comprises the following steps of:

(1) cutting propagation: adopting a mode of half-leaf insertion without leaf stalks, taking a 72-hole disk with the height of 55mm, the inner diameter of 20mm and the outer diameter of 40mm as a container, and the volume ratio is 1: 1, taking the mixture of turf and perlite as a substrate for cuttage propagation; controlling the temperature to be 25-30 ℃ and the air humidity to be 80-90%;

(2) seedling revival: after the seedlings take roots, transplanting the seedlings to a plastic flowerpot with the height of 100mm, the inner diameter of 80mm and the outer diameter of 110mm, and adopting the volume ratio of 3: 2, taking the mixture of the turf and the perlite as a matrix, controlling the relative humidity of the matrix and air to be 60-90%, controlling the temperature to be 15-28 ℃, and slowing seedling for 4 months;

(3) controlling water and picking leaves: when the growing space of the seedlings is not enough and the pots need to be changed for the second time, controlling water and picking leaves under the condition that the illumination intensity is 30.07 KLX;

the water control method specifically comprises the following steps: a) when the substrate is dried completely and the outermost circle of leaves of the plant begin to wither (about 20 days), removing the withered leaves and carrying out pot soaking; b) repeating step a) until primulina tabacum hance stem grows and lignifies;

after the old pile is obtained, a plurality of leaves are picked off at proper positions to grow buds, so that the old pile is convenient for later modeling, and then normal management of dry and wet appearance is carried out.

By the above method, the old stake seedling of Primulina tabacum Hance with excellent morphology is obtained after 10 months, as shown in FIG. 1.

Comparative example 1

This comparative example provides a process which differs from example 1 in that: in the step (3), the water control specifically comprises: the normal management of dry and wet states (the interval of each pot soaking is about 7 days) is realized, and the water control is not carried out.

By the above method, the primula gracilis never formed old pilous seedlings, as shown in fig. 2.

As is clear from the results of example 1 and comparative example 1, old stump seedlings could not be obtained in a short period of time in normal management, and the formation of old stumps of Primulina tabacum was accelerated by controlling water.

Although the invention has been described in detail hereinabove with respect to a general description and specific embodiments thereof, it will be apparent to those skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims (1)

1. A method for quickly obtaining primula tabacum hance old stake seedlings is characterized by comprising the following steps:

(1) cutting propagation: the mode of inserting half leaves without leaf stalks is adopted, a hole disc with the height of 50-60 mm, the inner diameter of 15-25 mm and the outer diameter of 35-45 mm is used as a container, and the volume ratio is 1: (0.8-1.2) using a mixture of turf and perlite as a substrate for cutting propagation; controlling the temperature to be 25-30 ℃ and the air humidity to be 80-90%;

(2) seedling revival: after the seedlings take roots, transplanting the seedlings to flowerpots with the height of 90-110 mm, the inner diameter of 70-90 mm and the outer diameter of 100-120 mm, wherein the volume ratio is 3: (1.8-2.2) taking the mixture of the grass carbon and the perlite as a matrix, controlling the relative humidity of the matrix and air to be 60% -90%, controlling the temperature to be 15-28 ℃, and rejuvenating seedlings for 3.5-4.5 months;

(3) controlling water and picking leaves: when the growing space of seedlings is not enough and the pots need to be changed for the second time, controlling water and picking leaves under the illumination intensity of 20-30.07 KLX;

the water control method specifically comprises the following steps: a) removing withered leaves and carrying out pot soaking every 18-22 days when the substrate is dried thoroughly and the outermost circle of leaves of the plant begin to wither; b) repeating step a) until primulina tabacum hance stem grows and lignifies;

after the old pile is obtained, several leaves are picked off at proper positions to make it grow small buds.

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