A method for developing a pineapple plant capable of bearing two fruits for both food and ornamental purposes

Abstract

The application belongs to the technical field of pineapple cultivation, and particularly discloses a cultivation method for developing edible and ornamental dual-fruit of a single pineapple plant, which changes the natural characteristics of a single pineapple plant producing only one fruit at the same period, develops dual fruits of a single pineapple plant at the same period, increases the ornamental property of the fruits of the pineapple, and develops a dual-value pineapple cultivation technology for edible and ornamental use; the method is simple to implement and easy to operate, the single pineapple plant produces dual fruits, the ornamental novelty of the dual fruits is novel, the added value of the pineapple industry is improved, and the method is favorable for optimizing the industrial structure of the pineapple, and promoting the development of the pineapple industry in multiple forms and high quality.

Description

Technical Field

[0001] This invention relates to the field of pineapple cultivation technology, specifically to a method for developing a single pineapple plant that produces two fruits for both edible and ornamental purposes. Background Technology

[0002] Pineapple (Ananas comosus (L.) Merr.), also known as pineapple, is the top of the four major tropical fruits. It is a high-end tropical fruit popular with consumers for its rich, unique aroma and perfectly balanced sweet and sour taste. During its growth period, the plant's shape and the crown of its fruit resemble a phoenix tail, giving it high ornamental value. Pineapple is a typical tropical crop, but most areas of my country are in non-tropical climate zones, making pineapple cultivation unsuitable. Therefore, dwarf potted plants and greenhouse cultivation in northern regions are being developed for leisure picking and sightseeing agriculture, which has high industrial economic value. The fact that a single pineapple plant produces only one fruit at a time is a natural biological characteristic of the plant. If this attribute can be changed to develop a method for cultivating two fruits on a single pineapple plant, it will enhance the ornamental appeal of pineapples and greatly increase their industrial added value. Currently, there is no pineapple production technology on the international market that allows a single plant to produce two fruits. Therefore, researching a cultivation method for developing a dual-purpose (edible and ornamental) pineapple plant that produces two fruits is of great significance for filling the technological gap in the cultivation of pineapples that produce two fruits on a single plant, increasing their ornamental appeal, improving the added value of pineapple production, accelerating the optimization of the structure of the specialty pineapple industry, and enhancing the international competitiveness of the pineapple industry's new technological productivity. Summary of the Invention

[0003] The purpose of this invention is to provide a cultivation method for producing two fruits per plant, suitable for both edible and ornamental purposes. This method changes the natural characteristic of a single pineapple plant producing only one fruit at a time, thereby increasing the ornamental value of the fruit and achieving the technical effect of developing a dual-value pineapple cultivation method that combines edible and ornamental uses. To achieve the above-mentioned effects, this invention adopts the following technical solution: A cultivation method for producing two fruits per plant, suitable for both edible and ornamental purposes, characterized by the following steps: S1 Dwarfing regulation of pineapple growth: When the pineapple plant grows to 30 leaves, remove the growing point at the top of the pineapple, and then spray the entire plant's front and back leaves with a 1000-fold diluted solution of 50% chlormequat chloride and 3‰ potassium dihydrogen phosphate. S2 Sprouting Regulation: 30 days after the end of S1, apply a 2‰ concentration of cytokinin solution mixed with 1‰ urea to the leaf axils of the top 4-5 leaves of the plant. The condition is that there is water accumulation under the leaf axils. After 7 days, apply the same method for the second application. Then apply 50g of balanced compound fertilizer with a total NPK content of 51% to the root hole. S3 Fruit-bearing Bud Cultivation: 30 days after the end of S2, buds will appear in the leaf axils of the pineapple plant. Retain the top two dominant and strong buds, and then remove all other buds from the entire plant. When the retained buds grow to 3-5 cm in length, apply an 800-fold diluted solution of 50% chlormequat chloride to the buds with a brush. Then, prepare a water-soluble fertilizer solution of 3% urea and 8% balanced water-soluble compound fertilizer with a total NPK content of 51% and apply 500 ml per plant to the roots. After 7 days of cultivation, spray the entire plant with a 1000-fold diluted liquid boron foliar fertilizer with a content of 130 g / L. Spray a second time after 7 days. S4 Flower and Fruit Development: 15 days after the end of S3, flower induction is carried out. A 500-fold dilution of 40% ethephon is applied to the core of the retained buds in the evening at an air temperature of 22-26℃, until the leaf cups of the core are full. 48 hours later, a 1000-fold dilution of 40% ethephon is sprayed on the whole plant. After 40 days, when the two retained buds develop red inflorescences, a 1200-fold dilution of cytokinin and various trace element foliar fertilizer is applied to the whole plant. After natural pollination and flowering, the fruit will develop, forming an ornamental form of a single pineapple plant producing two fruits. The ornamental period of a single pineapple plant producing two fruits is formed before maturity. After maturity, two edible pineapple fruits are harvested.

[0004] This invention changes the natural characteristic of a single pineapple plant producing only one fruit at a time, and develops a single pineapple plant that can produce two fruits at the same time, increasing the ornamental value of the fruit pineapple and achieving the technical invention effect of developing dual value for both consumption and ornamental purposes. Attached Figure Description

[0005] Figure 1 This is an example of a pineapple plant producing two fruits using this technology. Detailed Implementation

[0006] The present invention will be further described below with reference to specific embodiments, but the scope of the present invention is not limited to the examples, and the scope of protection is set forth in the claims. Example

[0007] This embodiment uses the Bert Red No. 1 pineapple variety Red Charm as an example of cultivation experiments. The method for developing a pineapple plant that produces two fruits for both eating and ornamental purposes includes the following steps: S1 Dwarfing regulation of pineapple growth: When the pineapple plant grows to 30 leaves, remove the growing point at the top of the pineapple, and then spray the entire plant's front and back leaves with a 1000-fold diluted solution of 50% chlormequat chloride and 3‰ potassium dihydrogen phosphate. S2 Sprouting Regulation: 30 days after the end of S1, apply a 2‰ concentration of cytokinin solution mixed with 1‰ urea to the leaf axils of the top 4-5 leaves of the plant. The condition is that there is water accumulation under the leaf axils. After 7 days, apply the same method for the second application. Then apply 50g of balanced compound fertilizer with a total NPK content of 51% to the root hole. S3 Bud Culture: 30 days after the end of S2, buds will appear in the leaf axils of the pineapple plant. Retain the top two dominant and strong buds, and then remove all other buds from the plant. When the retained buds grow to 3-5 cm in length, apply an 800-fold diluted solution of 50% chlormequat chloride to the buds with a brush. Then, prepare a water-soluble fertilizer solution of 3% urea and 8% balanced water-soluble compound fertilizer with a total NPK content of 51% and apply 500 ml per plant to the roots. After 7 days of culture, spray the entire plant with a 1000-fold diluted liquid boron foliar fertilizer with a content of 130 g / L. Spray a second time after 7 days. S4 Flower and Fruit Development: 15 days after the end of S3, flower induction is carried out. A 500-fold dilution of 40% ethephon is applied to the core of the retained buds in the evening at an air temperature of 22-26℃, until the leaf cups of the core are full. After 48 hours, the whole plant is sprayed with a 1000-fold dilution of 40% ethephon. After 40 days, when the two retained buds develop red inflorescences, the whole plant is sprayed with a 1200-fold dilution of cytokinin and various trace element foliar fertilizer. After natural pollination and flowering, the fruit will develop, forming an ornamental form of a single pineapple plant with two fruits. The ornamental period of a single pineapple plant with two fruits is formed before maturity. After maturity, two edible pineapple fruits are harvested.

[0008] This embodiment demonstrates that the implementation of a cultivation method for developing pineapples that can produce two fruits per plant for both edible and ornamental purposes has enabled a single plant of the Bert Red No. 1 Red Charm Pineapple to produce two fruits, increasing the ornamental value of the fruit pineapple and realizing the invention effect of developing pineapple cultivation technology with dual value for both edible and ornamental purposes.

[0009] This invention fills the technological gap in the pineapple industry by enabling a single pineapple plant to produce two fruits simultaneously, and increases the added value of pineapple production. It is of great significance for accelerating the optimization of the structure of the specialty pineapple industry, for science and technology to form new productive forces to support the pineapple industry, and for enhancing international competitiveness.

Claims

1. A method for cultivating pineapples that can produce two fruits per plant for both edible and ornamental purposes, characterized by the following steps: S1 Dwarfing regulation of pineapple growth: When the pineapple plant grows to 30 leaves, remove the growing point at the top of the pineapple, and then spray the entire plant's front and back leaves with a 1000-fold diluted solution of 50% chlormequat chloride and 3‰ potassium dihydrogen phosphate. S2 Sprouting Regulation: 30 days after the end of S1, apply a 2‰ concentration of cytokinin solution mixed with 1‰ urea to the leaf axils of the top 4-5 leaves of the plant. The condition is that there is water accumulation under the leaf axils. After 7 days, apply the same method for the second application. Then apply 50g of balanced compound fertilizer with a total NPK content of 51% to the root hole. S3 Fruit-bearing Bud Cultivation: 30 days after the end of S2, buds will appear in the leaf axils of the pineapple plant. Retain the top two dominant and strong buds, and then remove all other buds from the entire plant. When the retained buds grow to 3-5 cm in length, apply a 50% chlormequat chloride solution diluted 800 times to the buds with a brush. Then, prepare a water-soluble fertilizer solution with urea at a ratio of 3% and a balanced water-soluble compound fertilizer with a total NPK content of 51% at a ratio of 8% and irrigate the roots with 500 ml of the solution per plant. After 7 days of cultivation, spray the entire plant with a liquid boron foliar fertilizer diluted 1000 times with a content of 130 g / L. Spray a second time after 7 days. S4 Flower and Fruit Development: 15 days after the end of S3, flower induction is carried out. A 500-fold dilution of 40% ethephon is applied to the core of the retained buds in the evening at an air temperature of 22-26℃, until the leaf cups of the core are full. After 48 hours, the whole plant is sprayed with a 1000-fold dilution of 40% ethephon. After 40 days, when the two retained buds develop red inflorescences, the whole plant is sprayed with a 1200-fold dilution of cytokinin and various trace element foliar fertilizer. After natural pollination and flowering, the fruit will develop, forming an ornamental form of a single pineapple plant with two fruits. The ornamental period of a single pineapple plant with two fruits is formed before maturity. After maturity, two edible pineapple fruits are harvested.

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