CN110915352A

CN110915352A - Method for accelerating germination of eggfruit seeds

Info

Publication number: CN110915352A
Application number: CN201911106322.3A
Authority: CN
Inventors: 赵静; 韦优; 周婧; 卢美瑛; 黄丽君; 蒋娟娟; 孔方南; 李文砚; 杨志强; 卓福昌
Original assignee: Guangxi South Subtropical Agricultural Science Research Institute
Current assignee: Guangxi South Subtropical Agricultural Science Research Institute
Priority date: 2019-11-13
Filing date: 2019-11-13
Publication date: 2020-03-27

Abstract

The invention discloses a method for accelerating germination of yolk fruit seeds, which comprises seedbed arrangement, seedling raising matrix laying, sowing and accelerating germination, wherein the method comprises the steps of seedling raising matrix light and simple seedling raising matrix seeding, soaking and sterilizing the seeds by using a sodium hypochlorite solution before sowing, soaking the seeds by using warm water, and then soaking the seeds by using a rooting solution consisting of kinetin, indolebutyric acid and gibberellin, so that the germination of the yolk fruit seeds is facilitated; after sowing, the seedbed is sprayed with a germination accelerating liquid consisting of peptide sugar nutrient, organic matter, selenium alginate, zeatin, gamma-polyglutamic acid, gibberellin and diethyl aminoethyl hexanoate, and the yolk fruit germination accelerating liquid has a good effect on promoting germination of the yolk fruit. The method can promote the germination of the yolk fruit seeds, shorten the germination time, and has the advantages of high seed germination rate, quick germination, regular germination, strong seedlings and developed root systems.

Description

Method for accelerating germination of eggfruit seeds

Technical Field

The invention belongs to the technical field of agricultural planting, and particularly relates to a method for accelerating germination of eggfruit seeds.

Background

Yolk fruit, also known as Shitouguo, belongs to the family Sapotaceae (Sapotaceae) fruit of the genus Canarium (Lucuma) semideciduous tropical fruit tree. The original ancient copa and the north part of south America, the Guangdong, Guangxi, Hainan and the south part of Yunnan are cultivated sporadically. The fruit is spherical, green when unripe, yellow-green to orange-yellow when ripe, smooth, thin in peel, orange-yellow in pulp, rich in starch, egg yolk-like in texture and fragrant. The fruit can be used for preparing jam, ice cream, beverage or fruit wine except raw food. The tree has beautiful appearance, can be used for ornamental cultivation of garden street trees and courtyards, is a fruit tree planting variety with great market prospect, and simultaneously, the planting of the eggfruit is an effective way for solving the problems of aging of the variety and low market price of rural fruit planting industry and promoting the income increase of farmers.

The yolk fruit seedling raising method comprises seed propagation, cutting, grafting and other methods, wherein the seed propagation and the cutting are commonly used. The circus branches have large damage to the mother trees and small propagation coefficient, so seed propagation is more commonly used. The seed propagation is generally carried out in 1-2 months, mature and plump seeds are selected, washed, stored in sand for accelerating germination for 10-15 days, seeds are dibbled on the surface of a furrow after being exposed to white for 60 days, then the furrow is covered with fine soil with the thickness of 1cm and watered, and finally straw, leaves or a sunshade net is used for shading. However, the traditional yolk fruit sowing method has low seed germination rate, slow germination, irregular germination, weak and small seedlings, undeveloped root systems, low transplanting survival rate and poor seedling condition growth potential, and is not beneficial to the development of the yolk fruit planting industry.

Disclosure of Invention

Aiming at the problems, the invention provides a method for accelerating germination of yolk fruit seeds, which utilizes a light and simple seedling raising substrate to sow seedlings, emphasizes seed soaking treatment before sowing and accelerating germination treatment after sowing, carries out scientific management, and has good accelerating germination effect on yolk fruit seeds, high seed germination rate, quicker germination, regular germination, strong seedlings and developed root systems.

The invention is realized by the following technical scheme:

a method for accelerating germination of eggfruit seeds comprises the following steps,

(1) seedbed arrangement: deeply ploughing and finely crushing seedbed soil, leveling soil moisture and ridging, wherein the width of a compartment is 1.2-1.5m, and the height is 20-25 cm;

(2) laying a seedling culture substrate: laying a layer of seedling raising matrix on the arranged seedling bed; the seedling raising substrate comprises the following components in parts by weight: 20-30 parts of fine sand, 8-10 parts of humus soil, 3-5 parts of vermiculite and 3-5 parts of decomposed mixture, wherein the components are uniformly mixed, 0.5-1 part of lime powder is added during mixing for disinfection, and then the mixture is placed in the sun for drying for 5-7 days;

the decomposed mixture comprises 5-10 parts of decomposed coconut chaff, 5-10 parts of decomposed sawdust, 5-8 parts of decomposed traditional Chinese medicine waste residues, 5-8 parts of decomposed cow dung, 0.5-1 part of bacillus subtilis, 0.5-1 part of lactobacillus and 0.5-1 part of actinomycetes;

(3) sowing: drenching the seedbed with water 10-15h before sowing, selecting mature and plump seeds, soaking and disinfecting the seeds in 30-35% sodium hypochlorite solution for 20-30min, soaking the seeds in warm water for 1-2h, taking out and soaking the seeds in rooting solution consisting of kinetin, indolebutyric acid and gibberellin for 20-30min, dibbling the seeds on the surface of a seedbed compartment after taking out, covering the seedling culture substrate with the thickness of 1-2cm, drenching and compacting the seedbed by using a spray head after sowing, and covering an arch membrane on the seedbed for heat preservation and moisture preservation after drenching;

(4) accelerating germination: spraying a germination accelerating liquid to the seedbed every 5-7 days after sowing until more than 80% of seeds germinate, wherein the germination accelerating liquid comprises 5-10% of peptide sugar nutrient, 5-10% of organic matter, 5-10% of seaweed selenium, 0.5-0.8% of zeatin, 0.5-0.8% of gamma-polyglutamic acid, 0.3-0.8% of gibberellin, 0.3-0.5% of diethyl aminoethyl hexanoate and the balance of water.

Preferably, 5-10 parts of coconut chaff, 5-10 parts of sawdust, 5-8 parts of traditional Chinese medicine waste residue, 5-8 parts of cow dung, 0.5-1 part of bacillus subtilis, 0.5-1 part of lactobacillus and 0.5-1 part of actinomycetes are mixed together, 16-18% by weight of sugar-making wastewater is added for closed fermentation for 5-7 days, and the decomposed mixture is obtained.

As a further preferred technical scheme, the traditional Chinese medicine waste residue can adopt one or more of momordica grosvenori residue, aniseed residue, panax notoginseng residue, cinnamon residue, andrographis paniculata residue and subprostrate sophora residue, and can even be other waste residues.

Preferably, in the step (2), the laying thickness of the seedling raising substrate is 5-8 cm.

Preferably, in the step (3), the mass concentration of kinetin in the rooting solution is 50-75mg/L, the mass concentration of indolebutyric acid is 200-300mg/L, and the mass concentration of gibberellin is 200-250 mg/L.

Preferably, more than 80% of seeds germinate, the two ends of the arched film can be opened when the temperature is high in the day, the arched film is covered at night, the temperature in the arched film is kept at 25-30 ℃, and the humidity is kept at 70-85%; when the seedlings grow to have 2-3 leaves and the plant height is more than 4cm, the arch membrane is completely uncovered, when the illumination is strong in the daytime, a sunshade net is covered above the seedbed in time to prevent the seedlings from being burnt, nutrient solution is sprayed to the seedlings at night, the nutrient solution is sprayed every 15-18 days, and the seedlings are transplanted into a seedling bag after 3 months of seedling raising.

According to the further optimization of the technical scheme, the nutrient solution is obtained by mixing the clear solution of the sugar-making wastewater, the bean bran fertilizer and the clear water according to the volume ratio of 1:1: 3-8.

According to the further optimization of the technical scheme, when the nutrient solution is sprayed to the seedlings for the first time, the volume ratio of the sugar-making wastewater clear liquid to the bean bran fertilizer to the clear water is 1:1:8, then the volume ratio of the water is gradually reduced until the volume ratio of the sugar-making wastewater clear liquid to the bean bran fertilizer to the clear water is 1:1:3, and then the nutrient solution is sprayed to the seedlings according to the volume ratio of the sugar-making wastewater clear liquid to the bean bran fertilizer to the clear water of 1:1:3 until the seedlings are out of the nursery.

The coconut coir has good water retention, the porosity (v/v) of the coconut coir is 94-96%, the water retention capacity is 8-10 days, and the coconut coir can be used as a matrix component to fully maintain the water and the nutrients of the matrix, reduce the loss of the water and the nutrients and prevent the nutrient deficiency of seeds; the coconut chaff also has good air permeability, and can preserve heat, preserve moisture, ventilate and prevent the yolk fruit seeds from rotting.

The sawdust is a crumby granular substance left by cutting wood, has higher water transportation and guiding capacity, uniform humidity, convenient source and economic use, becomes decomposed sawdust after being piled and decomposed, can improve the looseness and the water absorption of a matrix, and is beneficial to the germination of the egg yolk seeds.

The Chinese medicinal waste residue has antibacterial and antiinflammatory effects to form insect-proof function; the Chinese medicine waste residue also contains more abundant mineral nutrient elements such as Ca, Mg, Fe, Cu and the like which are necessary for the egg yolk fruit, and is beneficial to the germination of the egg yolk fruit seeds.

The raw materials used in the invention can be purchased from the market.

Compared with the prior art, the invention has the beneficial effects that:

(1) the seedling culture substrate disclosed by the invention consists of fine sand, humus soil, vermiculite and a decomposed mixture, wherein the decomposed mixture comprises decomposed coconut chaff, decomposed sawdust, decomposed traditional Chinese medicine waste residues, decomposed cow dung, bacillus subtilis, lactobacillus and actinomycetes, and the components in the seedling culture substrate act synergistically, so that the seedling culture substrate is rich in nutrient components and has a longer fertilizer effect, and the nutritional requirements of egg yolk seeds can be met for a longer time; the egg yolk seed preservative is environment-friendly, light in weight, good in moisture retention and air permeability, not easy to harden in the using process, capable of effectively preventing the egg yolk seeds from rotting and beneficial to the germination of the egg yolk fruit seeds.

(2) The method focuses on seed soaking treatment before sowing and pregermination treatment after sowing, seeds are soaked and disinfected by sodium hypochlorite solution before sowing, the germination characteristics of the seeds are preliminarily excited by warm water seed soaking treatment, and then the seeds are soaked by rooting solution consisting of kinetin, indolebutyric acid and gibberellin, so that the germination characteristics of the seeds are further excited, and the germination of the mayonnaise seeds is facilitated; after sowing, a seedbed is sprayed with a germination accelerating solution consisting of peptide sugar nutrient, organic matter, selenium seaweed, zeatin, gamma-polyglutamic acid, gibberellin and diethyl aminoethyl hexanoate, the peptide sugar nutrient, the organic matter and the selenium seaweed can provide rich nutrient elements for the yolk fruit seeds and are easy to absorb, the zeatin, the gamma-polyglutamic acid, the gibberellin and the diethyl aminoethyl hexanoate are matched for use, so that the germination accelerating effect is good, the germination of the yolk fruit seeds can be promoted, the germination time is shortened, the germination rate of the seeds is high, the germination is fast, and the germination is tidy.

(3) The invention also focuses on seedling management, the seedling management adopts an arch film covering mode, the warming and moisturizing effect is good, the seedbed illumination and ventilation regulation and control are convenient, and the dew absorption at night is convenient; and the seedlings are sprayed with nutrient solution consisting of clear solution of sugar-making wastewater, bean bran fertilizer and clear water, so that the nutrient solution is rich in nutrient elements required by the growth of the mayonnaise, is beneficial to the growth of the seedlings, and has uniform and strong seedlings and developed root systems.

(4) By adopting the method, the germination rate of the egg yolk fruit seeds reaches more than 95 percent, the germination is fast, the budding is neat, the roots of the seedlings are developed, healthy and strong, and the transplanting survival rate reaches more than 98 percent.

Drawings

FIGS. 1 and 2 are graphs showing the growth of the yolk fruit seeds of example 1 after germination;

FIG. 3 is a diagram showing the growth of the budding of a conventional method of sowing yolk fruit seeds;

fig. 4 and 5 are graphs showing the growth state of the yolk fruit of example 4 at the seedling stage.

Detailed Description

The present invention will be described in further detail with reference to specific examples, but the present invention is not limited to the scope of the present invention.

Example 1

(1) seedbed arrangement: deeply ploughing and finely crushing the seedbed soil, leveling the soil moisture and ridging, wherein the width of the compartment surface is 1.2-1.5m, and the height is 20-25 cm.

(2) Laying a seedling culture substrate: laying a seedling raising substrate with the thickness of 5-8cm on the well-arranged seedling bed, wherein the seedling raising substrate comprises the following components in parts by weight: 25 parts of fine sand, 9 parts of humus soil, 4 parts of vermiculite and 4 parts of decomposed mixture, wherein the components are uniformly mixed, 0.8 part of lime powder is added during mixing for disinfection, and then the mixture is placed in the sun for 6 days.

The decomposed mixture comprises 8 parts of decomposed coconut chaff, 8 parts of decomposed sawdust, 6 parts of decomposed traditional Chinese medicine waste residues, 6 parts of decomposed cow dung, 0.7 part of bacillus subtilis, 0.8 part of lactobacillus and 0.7 part of actinomycetes; mixing coconut chaff, sawdust, traditional Chinese medicine waste residues, cow dung, bacillus subtilis, lactobacillus and actinomycetes, adding 17% by weight of sugar-making wastewater, and performing closed fermentation for 6 days to obtain the decomposed mixture.

The traditional Chinese medicine waste residue comprises momordica grosvenori residue, anise residue, panax notoginseng residue, cinnamon residue, andrographis paniculata residue and subprostrate sophora residue, and the components can be matched in any proportion for use.

(3) Sowing: drenching the seedbed thoroughly 12h before sowing, selecting mature and plump seeds, soaking and sterilizing the seeds in 33% sodium hypochlorite solution for 25min, soaking the seeds in warm water for 1.5h, taking out the seeds, soaking the seeds in rooting solution consisting of kinetin, indolebutyric acid and gibberellin for 25min, taking out the seeds, dibbling the seeds on the surface of the seedbed compartment, covering the seedbed compartment with seedling culture medium with the thickness of 1-2cm, carrying out water drenching and compacting on the seedbed by using a spray head after sowing, and covering an arch membrane on the seedbed for heat preservation and moisture preservation after water drenching; the mass concentration of kinetin in the rooting solution is 65mg/L, the mass concentration of indolebutyric acid is 250mg/L, and the mass concentration of gibberellin is 220 mg/L.

(4) Accelerating germination: after sowing, spraying germination accelerating liquid to the seedbed every 6 days until more than 80% of seeds germinate, wherein the germination accelerating liquid comprises 8% of peptide sugar nutrient, 7% of organic matter, 8% of seaweed selenium, 0.6% of zeatin, 0.7% of gamma-polyglutamic acid, 0.5% of gibberellin, 0.4% of diethyl aminoethyl hexanoate and the balance of water.

Fig. 1 and 2 are graphs showing the growth conditions of the yolk fruit seeds of example 1, and it can be seen from the graphs that the yolk fruit seeds of the present invention have regular germination, strong sprouts and good growth conditions.

Example 2

(2) Laying a seedling culture substrate: laying a seedling raising substrate with the thickness of 5-8cm on the well-arranged seedling bed, wherein the seedling raising substrate comprises the following components in parts by weight: 30 parts of fine sand, 8 parts of humus soil, 5 parts of vermiculite and 5 parts of decomposed mixture, wherein the components are uniformly mixed, 1 part of lime powder is added during mixing for disinfection, and then the mixture is placed in the sun and dried for 5 days.

The decomposed mixture comprises 10 parts of decomposed coconut chaff, 5 parts of decomposed sawdust, 8 parts of decomposed traditional Chinese medicine waste residues, 5 parts of decomposed cow dung, 0.5 part of bacillus subtilis, 1 part of lactobacillus and 0.5 part of actinomycetes; mixing coconut chaff, sawdust, traditional Chinese medicine waste residues, cow dung, bacillus subtilis, lactobacillus and actinomycetes, adding 18 weight percent of sugar-making wastewater, and performing closed fermentation for 7 days to obtain the decomposed mixture.

(3) Sowing: drenching the seedbed with water 10h before sowing, selecting mature and plump seeds, soaking and sterilizing the seeds in 30% sodium hypochlorite solution for 20min, soaking the seeds in warm water for 1h, taking out the seeds, soaking the seeds in rooting solution consisting of kinetin, indolebutyric acid and gibberellin for 20min, taking out the seeds, dibbling the seeds on the compartment surface of the seedbed, covering the seedling culture substrate with the thickness of 1-2cm, carrying out water drenching and compacting on the seedbed by using a spray head after sowing, and covering an arch membrane on the seedbed after water drenching for heat preservation and moisture preservation; the mass concentration of kinetin in the rooting solution is 50mg/L, the mass concentration of indolebutyric acid is 200mg/L, and the mass concentration of gibberellin is 250 mg/L.

(4) Accelerating germination: after sowing, spraying germination accelerating liquid to the seedbed every 5 days until more than 80% of seeds germinate, wherein the germination accelerating liquid comprises 10% of peptide sugar nutrient, 5% of organic matter, 5% of seaweed selenium, 0.8% of zeatin, 0.5% of gamma-polyglutamic acid, 0.8% of gibberellin, 0.3% of diethyl aminoethyl hexanoate and the balance of water.

Example 3

(2) Laying a seedling culture substrate: laying a seedling raising substrate with the thickness of 5-8cm on the well-arranged seedling bed, wherein the seedling raising substrate comprises the following components in parts by weight: 20 parts of fine sand, 10 parts of humus soil, 3 parts of vermiculite and 3 parts of decomposed mixture, wherein the components are uniformly mixed, 0.5 part of lime powder is added during mixing for disinfection, and then the mixture is placed in the sun for 7 days.

The decomposed mixture comprises 5 parts of decomposed coconut chaff, 10 parts of decomposed sawdust, 5 parts of decomposed traditional Chinese medicine waste residues, 8 parts of decomposed cow dung, 1 part of bacillus subtilis, 0.5 part of lactobacillus and 1 part of actinomycetes; mixing coconut chaff, sawdust, traditional Chinese medicine waste residues, cow dung, bacillus subtilis, lactobacillus and actinomycetes, adding 16 weight percent of sugar-making wastewater, and performing closed fermentation for 5 days to obtain the decomposed mixture.

(3) Sowing: drenching the seedbed with water 15h before sowing, selecting mature and plump seeds, soaking and sterilizing the seeds in 35% sodium hypochlorite solution for 30min, soaking the seeds in warm water for 2h, taking out the seeds, soaking the seeds in rooting solution consisting of kinetin, indolebutyric acid and gibberellin for 30min, taking out the seeds, dibbling the seeds on the compartment surface of the seedbed, covering the seedling culture substrate with the thickness of 1-2cm, drenching and compacting the seedbed by using a spray head after sowing, and covering an arch membrane on the seedbed after drenching water for heat preservation and moisture preservation; the mass concentration of kinetin in the rooting solution is 75mg/L, the mass concentration of indolebutyric acid is 300mg/L, and the mass concentration of gibberellin is 200 mg/L.

(4) Accelerating germination: after sowing, spraying germination accelerating liquid to the seedbed every 7 days until more than 80% of seeds germinate, wherein the germination accelerating liquid comprises 5% of peptide sugar nutrient, 10% of organic matter, 10% of seaweed selenium, 0.5% of zeatin, 0.8% of gamma-polyglutamic acid, 0.3% of gibberellin, 0.5% of diethyl aminoethyl hexanoate and the balance of water.

Statistics were made on the germination of the egg yolk fruit seeds of examples 1 to 3 of the present invention, and the results are shown in table 1.

TABLE 1 germination of the seeds of the present invention

Examples	Germination rate/%	Time of germination/month	Whether the sprouts are regular
				Conventional methods	88％	3	Whether or not
Example 1	97.3％	2	Is that
				Example 2	96.2％	2	Is that
Example 3	95.6％	2	Is that

Note: the conventional method is the sand storage germination accelerating method mentioned in the background technology, the growth condition of germination is shown in figure 3, and as can be seen from figure 3, the yolk fruit seeds sowed by the conventional method have irregular germination, the growth states of the buds are also irregular, and about half of the buds die before the buds grow into seedlings.

The germination percentage is ═ number of germinated seeds/number of sown seeds) × 100%.

As can be seen from Table 1, the method of the present invention has the advantages that the germination rate of the egg yolk fruit seeds is more than 95%, the germination time is 2 months, the germination is neat, the germination rate is further improved, and the germination time is further shortened compared with the conventional method.

Example 4

The traditional Chinese medicine waste residue comprises momordica grosvenori residue, aniseed residue and cinnamon residue, and the components can be matched in any proportion for use.

(5) Seedling stage management: after more than 80% of seeds germinate, the two ends of the arched film can be opened when the temperature is high in the day, the arched film is covered at night, the temperature in the arched film is kept between 25 and 30 ℃, and the humidity is kept between 70 and 85 percent; when the seedlings grow to have 2-3 leaves and the plant height is more than 4cm, the arched film is completely uncovered, when the illumination is strong in the daytime, a sunshade net is covered above the seedbed in time to prevent the seedlings from being burnt, nutrient solution is sprayed to the seedlings in the evening, the nutrient solution is sprayed every 15-18 days, and the seedlings are transplanted into a seedling bag after 3 months of seedling culture.

The nutrient solution is obtained by mixing the clear solution of the sugar-making wastewater, the bean bran fertilizer and the clear water according to the volume ratio of 1:1:3-8, when the nutrient solution is sprayed to the seedlings for the first time, the volume ratio of the clear solution of the sugar-making wastewater, the bean bran fertilizer and the clear water is 1:1:8, then the volume ratio of water is gradually reduced until the volume ratio of the clear solution of the sugar-making wastewater, the bean bran fertilizer and the clear water is 1:1:3, and then the nutrient solution is sprayed to the seedlings according to the volume ratio of the clear solution of the sugar-making wastewater, the bean bran fertilizer and the clear water is 1:1:3 until the seedlings are out of the nursery.

Fig. 4 and 5 are diagrams showing the growth state of the yolk fruit of example 4 transplanted into a seedling raising bag, and it can be seen from the diagrams that the yolk fruit seedlings of the present invention are healthy and strong and have good growth state, and are high quality yolk fruit seedlings.

Example 5

Example 6

Statistics are carried out on the germination conditions and the seedling growth conditions of the mayonnaise seeds of the examples 4-6 of the invention, and the results are shown in table 2.

TABLE 2 germination and growth of the yolk fruit seeds of the present invention

Examples	Germination rate/%	Time of germination/month	Whether the sprouts are regular	Survival rate of transplantation/%)
					Conventional methods	88	3	Whether or not	92
Example 4	97.5	2	Is that	99.1
					Example 5	96.1	2	Is that	98.8
Example 6	95.5	2	Is that	98.3

Note: the conventional method is the sand storage germination accelerating method mentioned in the background section.

The survival rate of transplantation is (number of survival seedlings transplanted/number of transplanted seedlings) x 100%.

As can be seen from Table 2, the method of the present invention has the advantages that the germination rate of the egg yolk fruit seeds is more than 95%, the germination time is 2 months, the germination is neat, and compared with the traditional method, the germination rate is further improved, and the germination time is further shortened.

The yolk fruit seedlings have developed root systems, are healthy and strong, and the transplanting survival rate reaches more than 98 percent, so that the transplanting survival rate is further improved compared with the traditional method.

Claims

1. A method for accelerating germination of eggfruit seeds is characterized by comprising the following steps,

2. The method for accelerating germination of egg yolk fruit seeds according to claim 1, wherein the decomposed mixture comprises 5-10 parts of decomposed coconut coir, 5-10 parts of decomposed sawdust, 5-8 parts of decomposed traditional Chinese medicine waste residues, 5-8 parts of decomposed cow dung, 0.5-1 part of bacillus subtilis, 0.5-1 part of lactobacillus and 0.5-1 part of actinomycetes; the preparation method comprises the steps of mixing coconut chaff, sawdust, traditional Chinese medicine waste residues, cow dung, bacillus subtilis, lactobacillus and actinomycetes, and adding 16-18% by weight of sugar-making wastewater to perform closed fermentation for 5-7 days.

3. The method for accelerating germination of egg yolk fruit seeds according to claim 1, wherein in the step (2), the thickness of the laid seedling substrate is 5-8 cm.

4. The method for accelerating germination of egg yolk fruit seed as claimed in claim 1, wherein in step (3), the concentration of kinetin in the rooting solution is 50-75mg/L, the concentration of indolebutyric acid is 200-300mg/L, and the concentration of gibberellin is 200-250 mg/L.

5. The method for accelerating germination of egg yolk fruit seeds according to claim 1, wherein after more than 80% of the seeds germinate, the arch membrane is opened at the two ends when the temperature is high in the day, and is covered at night, the temperature in the arch membrane is kept at 25-30 ℃, and the humidity is kept at 70-85%; when the seedlings grow to have 2-3 leaves and the plant height is more than 4cm, the arch membrane is completely uncovered, when the illumination is strong in the daytime, a sunshade net is covered above the seedbed in time to prevent the seedlings from being burnt, nutrient solution is sprayed to the seedlings at night, the nutrient solution is sprayed every 15-18 days, and the seedlings are transplanted into a seedling bag after 3 months of seedling raising.

6. The method for accelerating germination of yolk fruit seeds according to claim 5, wherein the nutrient solution is obtained by mixing clear sugar wastewater, bean bran manure and clear water according to a volume ratio of 1:1: 3-8.

7. The method for accelerating germination of yolk fruit seeds as claimed in claim 6, wherein when the nutrient solution is sprayed to the seedlings for the first time, the volume ratio of the clear liquid of sugar-making wastewater, the bean bran manure and the clear water is 1:1:8, then the volume ratio of water is gradually reduced until the volume ratio of the clear liquid of sugar-making wastewater, the bean bran manure and the clear water is 1:1:3, and then the nutrient solution is sprayed to the seedlings according to the volume ratio of the clear liquid of sugar-making wastewater, the bean bran manure and the clear water is 1:1:3 until the seedlings are out of nursery.