CN111480559B

CN111480559B - Method for changing color of blueberry cultivated in container

Info

Publication number: CN111480559B
Application number: CN202010311790.0A
Authority: CN
Inventors: 张长青; 赵辉; 王倩; 李海玲
Original assignee: Jinling Institute of Technology
Current assignee: Jinling Institute of Technology
Priority date: 2020-04-20
Filing date: 2020-04-20
Publication date: 2021-07-27
Anticipated expiration: 2040-04-20
Also published as: CN111480559A

Abstract

The invention discloses a method for changing flower colors of blueberries cultivated in a container, which comprises the steps of selecting blueberry seedlings with more than 3 years of age and plump flower buds, planting the blueberry seedlings in the container, and managing the blueberry seedlings indoors under conventional conditions; when the white flower buds of the blueberries are exposed to 3 mm, moving the blueberries to the outdoor, adjusting the cultivation temperature to be 10-20 ℃ in the daytime and 4-9 ℃ in the nighttime, and keeping for more than 2 days until the flower colors of the blueberries are changed into red; and moving the blueberries with changed colors indoors, and continuously managing according to conventional conditions. The method is simple, meets the requirements of the public, can change the blueberry flower color from white flower to red flower within 5 days, and can keep red for a long time. By adopting the method, the diversity of the blueberry colors is increased, and the ornamental value of the blueberries is improved.

Description

Method for changing color of blueberry cultivated in container

Technical Field

The invention relates to a method for changing flower colors of blueberries cultivated in a container, and belongs to the technical field of fruit tree cultivation.

Background

Blueberry (blueberry ssp.) is an important fruit tree economic crop, and fruits of the blueberry are rich in human health beneficial components such as anthocyanin, and can be used as fresh fruits, fruit juice, dried fruits, cake fillings and the like. In addition, the blueberry is beautiful in flower appearance, the corolla is in a jar shape or a lantern shape, branches and tips fall down when the corolla is opened, the color is pure white or pink, the appearance is small and exquisite, the color is beautiful, and the ornamental value is high. However, at present, people are insufficient in technical research on flower color regulation and control, and the ability of changing flower color is very limited, so that the ornamental value of blueberry flower color is reduced, and the blueberry flower color is an important limiting condition in blueberry pot culture.

Patent application No. CN201310283929.5 proposes a method for changing the flower type and flower color of maidenhair by subjecting seeds to radiation treatment. Patent application No. CN201710148757.9 proposes a method for changing flower color of Paeoniaceae flowers by changing pH of soil. Patent application No. CN201210063178.1 proposes a method for changing the flower color of orchid by subjecting the flower stalks to a stain treatment. However, the above methods are all harsh, and are difficult to implement by the general public.

Disclosure of Invention

The purpose of the invention is as follows: the invention aims to solve the technical problem that the defects of the prior art are overcome, and the method for changing the blueberry container cultivation color by adjusting the temperature is provided.

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

a method for changing flower color of blueberries cultivated in a container comprises the following steps:

(1) blueberry planting management:

selecting blueberry seedlings with more than 3 years and full flower buds, planting the blueberry seedlings in a container, and managing the blueberry seedlings indoors under conventional conditions;

(2) and (3) flower color change management:

when the white flower buds of the blueberries are exposed to 3 mm, moving the blueberries to the outdoor, adjusting the cultivation temperature to be 10-20 ℃ in the daytime and 4-9 ℃ in the nighttime, and keeping for more than 2 days until the flower colors of the blueberries are changed into red;

(3) flower color maintenance management:

and moving the blueberries with changed colors indoors, and continuously managing according to conventional conditions.

Specifically, in the step (1), the culture medium in the container is formed by mixing turf, organic fertilizer and river sand, the pH value is 4.5-5.5, and iron deficiency and poor growth of the blueberries are avoided; preferably, the turf, the organic fertilizer and the river sand are mixed into the culture medium according to the volume ratio of 4:1: 0.8.

Preferably, in the step (1), after the blueberry seedlings are planted in the container, water is poured for more than 1 time.

Specifically, in the step (2), after the blueberry is subjected to phenological stages such as bud expansion, cracking, inflorescence extension and the like, when white buds are exposed to 3 mm, the blueberry is moved outdoors.

Specifically, in the step (1) and the step (3), the blueberry seedlings are placed at indoor sunlight irradiation places under the conventional conditions, the temperature in the day and the night is controlled to be 14-20 ℃, and ventilation management of closing windows at night and opening windows in the day is adopted.

Has the advantages that:

the method is simple, meets the requirements of the public, can change the blueberry flower color from white flower to red flower within 5 days, and can keep red for a long time. By adopting the method, the diversity of the blueberry colors is increased, and the ornamental value of the blueberries is improved.

Drawings

The foregoing and/or other advantages of the invention will become further apparent from the following detailed description of the invention when taken in conjunction with the accompanying drawings.

Fig. 1 shows the flower color of the blueberry cultivated in the container at day 1 during flower color changing management according to the example.

Fig. 2 shows the flower color of the blueberry cultivated in the container at day 3 during the flower color changing management period of the example.

Fig. 3 shows the flower color of the blueberry cultivated in the container at the 4 th day during the period of flower color changing management according to the embodiment.

Fig. 4 shows the flower color of the blueberry cultivated in the container at the 5 th day during the period of flower color changing management according to the embodiment.

Fig. 5 shows the flower color of the blueberry cultivated in the container during the flower color maintenance management period in the embodiment.

FIG. 6 shows the flower color of the blueberry cultivated in the container of comparative example 1 on day 1 under the conventional management conditions.

FIG. 7 shows the flower color of the 11 th day blueberry cultivated in the container of comparative example 1 under the conventional management conditions.

FIG. 8 shows the leaf chilling injury symptom of the blueberry cultivated in the container of comparative example 2 after being managed at the temperature of 2-9 ℃ at night and then moving back to the indoor for conventional management on day 1.

FIG. 9 shows the leaf chilling injury symptom of the blueberries cultivated in the container of comparative example 2 after being managed at the temperature of 2-9 ℃ at night and then moving back to the indoor for conventional management on the 3 rd day.

Detailed Description

The invention will be better understood from the following examples.

Examples

(1) Blueberry planting and management

Selecting a blueberry variety 'Lagexi' (Legacy) which is more than 3 years old, full in flower buds and large in number as a plant material, mixing turf, organic fertilizer and river sand into a culture medium according to a volume ratio of 4:1:0.8, taking a flowerpot with a diameter and a height of 28 cm as a container, potting the medium, planting the nursery stock, and watering for 1 time. And (3) placing the planted blueberry seedlings at an indoor sunlight irradiation position, keeping the temperature in the daytime and the temperature at night to be 14-20 ℃, and performing ventilation management by closing windows at night and opening windows in the daytime.

(2) Pattern and color change management

After the blueberry is subjected to phenological stages of bud expansion, cracking, inflorescence elongation and the like, when white flower buds are exposed for 3 mm, the blueberry is moved outdoors, the cultivation temperature is kept at 10-20 ℃ in the daytime and 4-9 ℃ at night for 2 days, the blueberry flower colors begin to turn red, and the blueberry flower colors can turn into red flower buds after 5 days.

(3) Design and color maintenance management

And (4) moving the potted blueberry indoors again, adjusting the temperature of the day and night to be 14-20 ℃, and managing according to a conventional method.

As shown in fig. 1, after the blueberries cultivated in the containers were moved outdoors, the flower color was white (a) as it was on day 1 during the change management period. As shown in fig. 2, at day 3 during change management, the blueberry flower color started to change and the flower bud roots appeared red (B). As shown in fig. 3, at day 4 during the change management period, the blueberry bud root red color further spread toward the flower tip (C). As shown in fig. 4, at day 5 during the change management period, the blueberry flower buds turned from white to red overall (D). As shown in fig. 5, the red color of the blueberry flower buds remained better during flower color maintenance management (E).

Comparative example 1

When the blueberries of the example are moved to the outdoor in the color change management period, the blueberries of the comparative example 1 are continuously placed indoors for management by a conventional method to serve as a control.

As shown in fig. 6, the color of the blueberry cultivated in the container of comparative example 1 was originally white (F) on day 1 under the normal management conditions. As shown in FIG. 7, the color of the blueberry cultivated in the container of comparative example 1 was still white (G) on day 11 under the conventional management conditions, while the color of the blueberry of example turned from white to red (B) on day 3.

By comparing the examples with comparative example 1, it can be verified that the blueberry flower color can be changed from white flower to red flower within 5 days by the method of the present invention, and the red color can be maintained for a long time.

Comparative example 2

When the blueberries in the example are moved to the outdoor in the color change management period, the blueberries in the comparative example 2 are placed at 10-20 ℃ in the daytime and 2-9 ℃ in the night for management for 5 days by a conventional method, and then the potted blueberries are moved to the indoor, the temperature of the day and the temperature of the night are both kept at 14-20 ℃, and the management is carried out according to the conventional method to serve as a comparison.

As shown in fig. 8, the leaves of the blueberries cultivated in the containers of comparative example 2 were cold-damaged on day 1 under the conventional management conditions after being moved back indoors. As shown in fig. 9, the leaves of the blueberries cultivated in the containers of comparative example 2 were cold-damaged on the 3 rd day under the conventional management conditions after being moved back indoors, whereas the leaves of the examples were normal.

By comparing the embodiment with the comparative example 2, it can be verified that the cultivation temperature is properly controlled to be 10-20 ℃ in the daytime and 4-9 ℃ in the nighttime in the flower color changing period, and the young leaves of the blueberries can be prevented from being damaged.

The invention provides a method and a concept for changing the color of a blueberry cultivated in a container, and a method and a way for realizing the technical scheme are many, the above description is only a preferred embodiment of the invention, and it should be noted that, for a person skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the invention, and the improvements and decorations should also be regarded as the protection scope of the invention. All the components not specified in the present embodiment can be realized by the prior art.

Claims

1. A method for changing flower color of blueberry cultivated in a container is characterized by comprising the following steps:

(1) blueberry planting management:

(2) and (3) flower color change management:

(3) flower color maintenance management:

moving the blueberries with changed colors indoors, and continuing to manage according to conventional conditions;

the blueberry is of a Riegesi blueberry variety.

2. The method for changing flower color of blueberry cultivated in container as claimed in claim 1, wherein in step (1), the cultivation medium in the container is formed by mixing turf, organic fertilizer and river sand, and the pH value is 4.5-5.5.

3. The method for changing flower color of blueberry planted in container as claimed in claim 1, wherein in step (1), after blueberry seedling is planted in container, water is poured for more than 1 time.

4. The method for changing flower color of blueberries cultivated in a container according to claim 1, wherein in the step (2), the blueberries are moved to the outside when white flower buds are exposed to 3 mm after flower buds are expanded, cracked and inflorescence is elongated.

5. The method for changing flower color of blueberry cultivated in container as claimed in claim 1, wherein in step (1) and step (3), the conventional conditions are that blueberry seedlings are placed in indoor sunlight, the temperature in the day and night is controlled between 14-20 ℃, and ventilation management of closing windows at night and opening windows in the day is adopted.