Durian flower forcing agent, preparation method and application

By using a durian flowering promoter to encourage durians to flower earlier, the problem of Hainan durians having difficulty flowering or producing few flowers and fruits has been solved, resulting in increased durian yield and economic benefits.

CN122004239APending Publication Date: 2026-05-12TROPICAL CORP STRAIN RESOURCE INST CHINESE ACAD OF TROPICAL AGRI SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
TROPICAL CORP STRAIN RESOURCE INST CHINESE ACAD OF TROPICAL AGRI SCI
Filing Date
2025-12-31
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Durians grown in Hainan do not easily flower under natural conditions, or they produce few flowers and few fruits, which affects durian yield and economic benefits.

Method used

A durian flowering promoter containing a combination of calcium cyclohexane, potassium phosphite, benzylaminopurine, thiamethoxam, and ethephon was diluted and sprayed onto durian trees to promote bud appearance and increase the number of buds.

Benefits of technology

It significantly shortens the time for durian flower buds to appear, increases the number of flower bud clusters, promotes earlier flowering of durian, and improves durian yield and economic benefits.

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Abstract

The invention belongs to the field of durian cultivation, and particularly relates to a durian flower forcing agent, a preparation method and application. According to the durian flower forcing agent, prohexadione calcium, potassium phosphite, benzyl benzyl aminopurine, thidiazuron and ethephon are reasonably combined, durian can be promoted to bloom in advance, the durian flower forcing agent is diluted and then sprayed to durian trees, budding of the durian trees can be achieved 9 days after spraying, and the budding time and the blooming time are shortened; meanwhile, the cluster number of durian flower buds can be remarkably increased, important guarantee is provided for increasing the yield of durian, and economic benefits of durian cultivation can be greatly increased.
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Description

Technical Field

[0001] This invention belongs to the field of durian cultivation, specifically relating to a durian flowering agent, its preparation method, and its application. Background Technology

[0002] Durian (scientific name: D) urio zibethinus Durian (also known as civet fruit or musk fruit) is a tropical deciduous tree belonging to the Bombacaceae family. The flesh of the durian is rich in nutrients and is known as the "King of Fruits." Durian has extremely high nutritional value; regular consumption can strengthen the body, invigorate the spleen and replenish qi, tonify the kidneys and enhance yang, and warm the body, making it a nourishing and beneficial fruit. Durian is warming in nature, which can promote blood circulation, dispel cold, and relieve menstrual cramps, making it especially suitable for women suffering from dysmenorrhea. It can also improve abdominal coldness and promote a rise in body temperature, making it an ideal supplement for those with a cold constitution.

[0003] Durian trees grown in Hainan often fail to flower naturally or produce few flowers and fruits, significantly impacting yield and severely hindering economic benefits. Therefore, addressing these issues is crucial for increasing durian production and improving the economic efficiency of durian cultivation. Summary of the Invention

[0004] This invention provides a durian flowering agent, its preparation method, and its application. After spraying, it can not only promote the flowering of durians, but also increase the number of flower buds, which is beneficial to increasing durian yield.

[0005] The technical solution of this invention is implemented as follows: A durian flowering promoter comprises the following components: calcium cyclohexane, potassium phosphite, benzylaminopurine, thiamethoxam, and ethephon.

[0006] Furthermore, each part of the durian flowering agent contains the following components by weight: 1-5g of calcium cyclohexane, 1-5g of potassium phosphite, 1-3g of benzylaminopurine, 1-3g of thiamethoxam, and 0.5-1.5g of ethephon.

[0007] Furthermore, in the durian flowering agent, the weight ratio of calcium cyclamate to potassium phosphite is 2.3:2.8.

[0008] Furthermore, each part of the durian flowering agent comprises the following components by weight: 2.3g of calcium cyclohexane, 2.8g of potassium phosphite, 2g of benzylaminopurine, 2g of thiamethoxam, and 1g of ethephon.

[0009] The method for preparing the durian flowering agent includes the following steps: Take calcium cyclohexane, potassium phosphite, benzylaminopurine, thiamethoxam, and ethephon, and mix them thoroughly.

[0010] The above-mentioned durian flowering promoters are used to shorten the time for durian flower buds to appear, increase the number of durian flower bud clusters, and / or promote early flowering of durian.

[0011] Furthermore, in the aforementioned application, each portion of durian flowering agent is diluted 1000 times and sprayed onto the durian tree until droplets fall from the edges of the leaves.

[0012] Furthermore, in the aforementioned application, the durian flowering agent is sprayed 1-2 times, once every 5-7 days.

[0013] A method for inducing durian flowering includes the following steps: The above-mentioned durian flowering agent was diluted and sprayed on the leaves of durian trees that needed to be induced to flower.

[0014] Furthermore, the durian flowering agent is sprayed at least 30 days before flowering; the durian flowering agent is diluted 1000 times and sprayed onto the durian tree until droplets fall from the leaf edges, spraying 1-2 times, once every 5-7 days.

[0015] The beneficial effects of this invention are: The durian flowering promoter of this invention, through a reasonable combination of calcium cyclamate, potassium phosphite, benzylaminopurine, thiamethoxam, and ethephon, can promote early flowering of durians. After dilution, it can be sprayed onto durian trees, and buds will appear on the trees within 9 days after spraying. This promotes early flowering of durian trees, shortens the budding and flowering time, and significantly increases the number of durian bud clusters, providing an important guarantee for increasing durian yield and greatly improving the economic benefits of durian cultivation. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 Flower buds appeared on durian trees 9 days after they were sprayed with a flower-inducing agent.

[0018] Figure 2 Flowering status of durian trees 30 days after spraying with a flowering-inducing agent. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Example 1

[0021] A durian flowering promoter, each part comprising the following components by weight: 1g calcium cyclamate, 1g potassium phosphite, 1g benzylaminopurine, 1g thiabendazole, and 0.5g ethephon.

[0022] The method for preparing the durian flowering agent includes the following steps: Take calcium cyclohexane, potassium phosphite, benzylaminopurine, thiamethoxam, and ethephon, and mix them thoroughly.

[0023] Example 2 A durian flowering agent, each serving comprising the following components by weight: 2.3g calcium cyclamate, 2.8g potassium phosphite, 2g benzylaminopurine, 2g thiabendazole, and 1g ethephon.

[0024] The method for preparing the durian flowering agent includes the following steps: Take calcium cyclohexane, potassium phosphite, benzylaminopurine, thiamethoxam, and ethephon, and mix them thoroughly.

[0025] Example 3 A durian flowering promoter, each serving comprising the following components by weight: 5g calcium cyclamate, 5g potassium phosphite, 3g benzylaminopurine, 3g thiabendazole, and 1.5g ethephon.

[0026] The method for preparing the durian flowering agent includes the following steps: Take calcium cyclohexane, potassium phosphite, benzylaminopurine, thiamethoxam, and ethephon, and mix them thoroughly.

[0027] The durian flower-inducing agent prepared in the above embodiments can produce flower buds (budding) after spraying on durian trees for about 10 days (9-12 days). Figure 1 It will bloom in about 30 days. Figure 2 Furthermore, it can significantly increase the number of flower buds, thus achieving the effect of inducing flowering in durian trees. When spraying, dilute each part of the flowering agent 1000 times and spray it onto the durian tree until droplets fall from the edges of the leaves. Spray 1-2 times in total, once every 5-7 days.

[0028] Flower-inducing effect study of the flower-inducing agent described in this invention Durian trees of similar age, growth status, and normal fruiting were selected for a flowering-inducing experiment in March. Flower-inducing agents with different formulations were prepared according to the composition in Table 1 and the method described in Example 1. Existing flowers on the durian trees were marked for easy identification during subsequent statistical analysis. Each of the flower-inducing agents prepared in Table 1 was diluted with 1000 times its weight of water and sprayed onto the durian trees twice, with a 5-day interval. The opening time of the first flower after the first spray was recorded as day 0. Since durian flowers bloom in clusters of 10-30 flowers, the number of flower bud clusters appearing within two months of the first spray was used as the starting point. Five durian trees were used for each treatment, and the average values ​​for bud appearance time, number of flower bud clusters, and flowering time were taken.

[0029] Table 1. Comparison of the flowering-inducing effects of different flower-inducing agents on durian. Serial Number Each serving of flower-inducing agent contains: Bud appearance time (days) Number of flower bud clusters (cluster / tree) Flowering time (days) 1 Calcium cyclohexane 1g, potassium phosphite 1g, benzylaminopurine 1g, thiamethoxam 1g, ethephon 0.5g 9 220 31 2 Calcium cyclohexane 2.3g, potassium phosphite 2.8g, benzylaminopurine 2g, thiazolinone 2g, ethephon 1g 10 232 30 3 Calcium cyclohexane 5g, potassium phosphite 5g, benzylaminopurine 3g, thiamethoxam 3g, ethephon 1.5g 10 229 30 4 Potassium phosphite 2.8g, benzylaminopurine 2g, thiamethoxam 2g, ethephon 1g 20 13 41 5 Calcium cyclohexane 2.3g, benzylaminopurine 2g, thiazolinone 2g, ethephon 1 part 21 30 43 6 Calcium cyclohexane 2.3g, potassium phosphite 2.8g, thiamethoxam 2g, ethephon 1g 13 138 33 7 Calcium cyclohexane 2.3g, potassium phosphite 2.8g, benzylaminopurine 2g, ethephon 1g 14 121 35 8 Calcium cyclohexane 2.3g, potassium phosphite 2.8g, benzylaminopurine 2g, thiazolinone 2g 11 157 32 9 2g thiamethoxam, 1g ethephon / 0 / 10 Calcium cyclohexanoate 2.3g, potassium phosphite 2.8g, benzylaminopurine 2g 21 78 41 11 Thiabenzodime 2g, ethephon 1g, calcium cyclohexane 2.3g 25 33 46 12 Potassium phosphite 2.8g, benzylaminopurine 2g 27 9 51 13 No action taken / 0 / Table 1 shows that the composition of the flowering inducing agent significantly affected the flowering effect in durian trees. Treatments 1-3 showed flower buds approximately 9-10 days after the first spray, while treatments 6-8 showed buds 11-14 days after the first spray, with flowering occurring in approximately 30-35 days. The budding and flowering times were significantly shortened to approximately 30-35 days. Treatments 4 and 10 showed buds 20 and 21 days after spraying, respectively, with flowering time extended to 41 days. Treatments 11-12 showed buds 25 and 27 days after spraying, respectively, with flowering time extended to 46 and 51 days. Treatment 9 did not show any flower buds during the two-month observation period. Therefore, by changing the composition of the flowering inducing agent in treatments 4-12, the budding and flowering times of durian trees were prolonged to varying degrees, and the flowering induction effect was reduced to varying degrees.

[0030] Treatments 1-3 significantly shortened the budding and flowering time, and also significantly increased the number of flowering clusters, reaching a maximum of 232 clusters per plant. While treatments 6-8 also significantly advanced the budding and flowering time, the number of flowering clusters was significantly lower than in treatments 1-3, with a maximum of 157 flowers, significantly lower than in treatments 1-3. Treatments 4-5 not only significantly prolonged the flowering time, but also significantly reduced the number of flowering clusters, showing a significantly lower flower-forcing effect than treatments 1-3.

[0031] As can be seen from the data in Table 1, the flower-inducing agent of this invention, through its rational combination, exhibits synergistic effects among its components, significantly enhancing the flower-inducing effect on durian trees after spraying. It not only shortens the budding and blooming time but also significantly increases the number of durian flower clusters. Changing the composition of the flower-inducing agent reduces the flower-inducing effect to varying degrees.

[0032] The Influence of Different Spraying Methods on the Flower-Inducing Effect of the Flower-Inducing Agent of the Present Invention

[0033] Durian trees of similar age, growth status, and normal fruit production were selected for a flowering-inducing experiment in March. Following the spraying frequency and intervals specified in Table 2, the existing flower buds (flowers) on the durian trees were marked. The flowering-inducing agent prepared in Example 2 was diluted 1000 times with water and sprayed onto the durian trees. The day of the first spray was designated as day 0. The opening time of the first flower after spraying was recorded, and the number of flower bud clusters appearing within two months after spraying was counted. Five durian trees were used for each treatment, and the average values ​​for bud appearance time, number of flower bud clusters, and flowering time were taken.

[0034] Table 2 Comparison of the effects of the number of sprays and the interval between sprays of the flower-inducing agent on the flowering effect of durian. Serial Number Number of sprays Interval time (days) Bud appearance time (days) Number of flower bud clusters (cluster / tree) Flowering time (days) 1 1 / 12 142 34 2 2 1 12 150 35 3 2 3 10 155 32 4 2 5 9 226 30 5 2 7 10 230 30 6 2 9 12 96 35 7 3 1 / / / 8 3 3 / / / 9 3 5 / / / 10 3 7 13 154 35 11 3 9 10 123 37 As can be seen from Table 2, although the flower-inducing agent described in this invention can promote the budding and flowering time by spraying once, the number of flower bud clusters is relatively low.

[0035] Spraying twice, with an interval of 1-3 days between each application, can advance the budding time, but slightly delay the flowering time and reduce the number of flower bud clusters. Spraying twice, with an interval of 5-7 days between each application, can advance the budding and flowering times. At the same time, the interval of 5-7 days also significantly increases the number of flower bud clusters, showing a significant flower-promoting effect. However, spraying twice with an interval of 9 days not only delays the budding time but also significantly reduces the number of flower bud clusters.

[0036] Spraying three times at intervals of 1, 3, and 5 days will not induce flowering; while an interval of 7-9 days may advance the budding and flowering times, the number of bud clusters will be low, and the flowering effect will still be poor.

[0037] Therefore, the best flowering effect is achieved when using the flowering inducing agent described in this invention to induce flowering in durian trees, spraying twice with an interval of 5-7 days between each application.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A durian flowering promoter, characterized in that, It includes the following components: calcium cyclohexane, potassium phosphite, benzylaminopurine, thiafenuron, and ethephon.

2. The durian flowering agent as described in claim 1, characterized in that, Each serving contains the following components by weight: calcium cyclohexane 1-5g, potassium phosphite 1-5g, benzylaminopurine 1-3g, thiamethoxam 1-3g, and ethephon 0.5-1.5g.

3. The flowering inducing agent as described in claim 1, characterized in that, In the durian flowering agent described above, the weight ratio of calcium cyclamate and potassium phosphite is 2.3:2.

8.

4. The flowering inducing agent as described in claim 1, characterized in that, Each serving contains the following components by weight: calcium cyclohexane 2.3g, potassium phosphite 2.8g, benzylaminopurine 2g, thiafenuron 2g, and ethephon 1g.

5. The method for preparing the durian flowering inducing agent according to any one of claims 1-4 comprises the following steps: Take calcium cyclohexane, potassium phosphite, benzylaminopurine, thiamethoxam, and ethephon, and mix them thoroughly.

6. The application of the durian flowering agent as described in any one of claims 1-4 in shortening the time of durian flower bud appearance, increasing the number of durian flower bud clusters, and / or promoting early flowering of durian.

7. The application as described in claim 6, characterized in that, Dilute the durian flowering agent 1000 times and spray it onto the durian tree until droplets fall from the edges of the leaves.

8. The application as described in claim 6, characterized in that... The durian flowering agent is sprayed 1-2 times, once every 5-7 days.

9. A method for inducing durian flowering, characterized in that, Includes the following steps: The durian flowering agent according to any one of claims 1-4 is diluted and sprayed on the leaves of durian trees that need to be induced to flower.

10. The method as described in claim 9, characterized in that, The durian flowering agent shall be sprayed at least 30 days before flowering; the durian flowering agent shall be diluted 1000 times and sprayed onto the durian tree until droplets fall from the edges of the leaves, spraying 1-2 times, once every 5-7 days.