A medicament for promoting early flowering of Litchi chinensis Sonn. cv. Feizixiao and its application

Abstract

The present invention provides a medicament for promoting early flowering of concubine smile litchi trees and its application, which comprises the following components: prohexadione-calcium and thidiazuron, and at least one of phthalamic acid, potassium dihydrogen phosphate or fluid boron. According to the flowering habit of concubine smile litchi, by combining prohexadione-calcium, thidiazuron, phthalamic acid, potassium dihydrogen phosphate and fluid boron, and through scientific compatibility, the present invention can effectively advance the time of showing "white dots" of concubine smile litchi by about one month, meeting the requirements of better early flowering; the present invention solves the problem of flowering period regulation of concubine smile litchi, and has the characteristics of easy operation, good effect and low cost.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural fruit tree flowering, and particularly relates to a medicament for promoting early flowering of Litchi chinensis Sonn. cv. Feizixiao and its application. Background Art

[0002] Under normal circumstances, it is difficult to regulate the flowering period of Litchi chinensis Sonn. It requires sufficient low-temperature accumulation in winter. During the whole winter, shoot control and prevention of flushing shoots are carried out. In the northern part of Hainan Island, flower induction and promotion are generally carried out half a month after Lesser Cold. It is extremely laborious and time-consuming, and has extremely high requirements for weather and the operation technical level of workers. At the same time, sudden warm days in winter during production will lead to the failure of shoot control and flower promotion. At the same time, due to the fact that each production unit picks green fruits in order to get early fruits and good prices, it disrupts the market order, making it difficult to guarantee both yield and quality. Hainan is the early-maturing litchi production area in China, mainly planting Litchi chinensis Sonn. cv. Feizixiao. The litchi in Lingshui matures earliest, and it matures and is harvested gradually from south to north. The earliest harvested litchi has the highest price and is in short supply in the market. While the planting scale of litchi in the northern part of Hainan is the largest, the maturity period is relatively concentrated and often coincides with that in Zhanjiang. The purchase price is low and it is not easy to sell. If the flowering of Litchi chinensis Sonn. cv. Feizixiao is advanced and the flowering rate reaches 80%, the maturity period can be separated from that of Guangdong litchi, and the price will be stable, benefiting the fruit farmers. Therefore, the development of a medicament for promoting early flowering of Litchi chinensis Sonn. cv. Feizixiao has important guiding significance for increasing farmers' income and rural revitalization. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to provide a medicament for promoting early flowering of Litchi chinensis Sonn. cv. Feizixiao and its application. According to the flowering habit of Litchi chinensis Sonn. cv. Feizixiao, the medicament is scientifically formulated. It can effectively advance the time of showing "white dots" of Litchi chinensis Sonn. cv. Feizixiao by about one month, and the flowering rate reaches about 80%. It can meet the better requirement of early flowering. Without affecting the later yield and quality of Litchi chinensis Sonn. cv. Feizixiao, it advances the maturity period of Litchi chinensis Sonn. cv. Feizixiao by about 10 days, solves the problem of flowering period regulation of Litchi chinensis Sonn. cv. Feizixiao, and has the characteristics of easy operation, good effect, low cost, etc. Moreover, the price of early-fruiting Litchi chinensis Sonn. cv. Feizixiao can be increased by 3 times, which has important guiding significance for seizing the domestic fresh litchi market in advance.

[0004] The technical solution of the present invention is realized as follows:

[0005] A medicament for promoting early flowering of Litchi chinensis Sonn. cv. Feizixiao trees comprises the following components: prohexadione-calcium and thidiazuron, and at least one of phthalamic acid, potassium dihydrogen phosphate or fluid boron.

[0006] Further, it comprises the following components: prohexadione-calcium, thidiazuron, phthalamic acid, potassium dihydrogen phosphate and fluid boron.

[0007] Further, it comprises the following components: calcium cyclohexanecarboxylate 0.4 - 1.8 g / L, phthalamic acid 50 - 200 mg / L, thidiazuron 0.5 - 5 mg / L, potassium dihydrogen phosphate 1 - 4 g / L, and fluid boron 0.1 - 0.3 g / L.

[0008] Further, it comprises the following components: calcium cyclohexanecarboxylate 1.1 g / L, phthalamic acid 100 mg / L, thidiazuron 1 mg / L, potassium dihydrogen phosphate 2 g / L, and fluid boron 0.15 g / L.

[0009] On the other hand, the present invention provides a method for using the above-mentioned medicament for early flowering of Litchi chinensis 'Feizixiao' trees. The formula components are mixed with water to make the medicament, and starting from 7 - 9 days after the Beginning of Winter solar term, it is sprayed onto Litchi chinensis 'Feizixiao' trees, and the medicament is sprayed every 6 - 8 days, continuously sprayed 3 - 4 times. Attention should be paid to the application area and time to ensure the effectiveness of applying the early flowering medicament.

[0010] Further, starting from 7 days after the Beginning of Winter solar term, it is sprayed onto Litchi chinensis 'Feizixiao' trees, and the medicament is sprayed every 7 days, continuously sprayed 3 times.

[0011] Further, the medicament is sprayed once every 7 days.

[0012] On the other hand, the present invention also provides the application of the above-mentioned medicament for early flowering of Litchi chinensis 'Feizixiao' trees in early flowering of litchi.

[0013] Further, the litchi is Litchi chinensis 'Feizixiao'.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] According to the flowering habit of Litchi chinensis 'Feizixiao', by combining calcium cyclohexanecarboxylate, thidiazuron, phthalamic acid, potassium dihydrogen phosphate, and fluid boron, and through scientific compatibility, it can effectively advance the time of showing "white dots" of Litchi chinensis 'Feizixiao' by about one month, meeting the requirement of better early flowering; the present invention solves the problem of regulating the flowering period of Litchi chinensis 'Feizixiao', and has the characteristics of easy operation, good effect, and low cost.

[0016] By selecting the combination of calcium cyclohexanecarboxylate, thidiazuron, phthalamic acid, potassium dihydrogen phosphate, and fluid boron as the medicament for early flowering of Litchi chinensis 'Feizixiao' trees, not only can Litchi chinensis 'Feizixiao' flower earlier, but also the obtained Litchi chinensis 'Feizixiao' has good quality. When seizing the market opportunity, it greatly increases the price of litchi and the benefits. Detailed implementation manners

[0017] To better understand the technical content of the present invention, specific embodiments are provided below to further illustrate the present invention.

[0018] Unless otherwise specified, the experimental methods used in the embodiments of the present invention are all conventional methods.

[0019] Unless otherwise specified, the materials, reagents, etc. used in the embodiments of the present invention can all be obtained from commercial channels.

[0020] Example 1 - Effects of Different Concentrations of Single Agents on Early Flowering of Litchi chinensis Sonn. cv. Feizixiao

[0021] Table 1 Effects of Prohexadione-Ca on Early Flowering of Litchi chinensis Sonn. cv. Feizixiao

[0022]

[0023] Table 2 Effects of Phthalanilic Acid on Early Flowering of Litchi chinensis Sonn. cv. Feizixiao

[0024]

[0025] Table 3 Effects of Thidiazuron on Early Flowering of Litchi chinensis Sonn. cv. Feizixiao

[0026]

[0027] Table 4 Effects of Potassium Dihydrogen Phosphate on Early Flowering of Litchi chinensis Sonn. cv. Feizixiao

[0028]

[0029] Table 5 Effects of Fluid Boron on Early Flowering of Litchi chinensis Sonn. cv. Feizixiao

[0030]

[0031]

[0032] A total of 5 agents were tested by spraying on the canopy of Litchi chinensis Sonn. cv. Feizixiao during the shoot control period: After 20 days of observation, no early appearance of white dots was found on the canopies sprayed with prohexadione-calcium at 1.1 g / L, phthalanilic acid at 100 mg / L, thidiazuron at 1 mg / L, potassium dihydrogen phosphate at 2 g / L, and fluid boron at 0.15 g / L.

[0033] Example 2 - Effects of Compound Agents on Flowering of Litchi chinensis Sonn. cv. Feizixiao

[0034] (1) Single-component compound agents with different concentrations

[0035] Table 6 Effects of Compound of Prohexadione-Ca and Phthalanilic Acid with Different Concentrations on Early Flowering of Litchi chinensis Sonn. cv. Feizixiao

[0036]

[0037] Table 7 Effects of Compound of Prohexadione-Ca and Thidiazuron with Different Concentrations on Early Flowering of Litchi chinensis Sonn. cv. Feizixiao

[0038]

[0039] Table 8 Effects of the compounding of calcium cyclanilide with different concentrations and potassium dihydrogen phosphate on the early flowering of Litchi chinensis Sonn. cv. Feizixiao

[0040]

[0041]

[0042] Table 9 Effects of the compounding of calcium cyclanilide with different concentrations and fluid boron on the early flowering of Litchi chinensis Sonn. cv. Feizixiao

[0043]

[0044] Table 10 Effects of the compounding of phthalanilic acid with different concentrations and thidiazuron on the early flowering of Litchi chinensis Sonn. cv. Feizixiao

[0045]

[0046] Table 11 Effects of the compounding of phthalanilic acid with different concentrations and potassium dihydrogen phosphate on the early flowering of Litchi chinensis Sonn. cv. Feizixiao

[0047]

[0048] Table 12 Effects of the compounding of phthalanilic acid with different concentrations and fluid boron on the early flowering of Litchi chinensis Sonn. cv. Feizixiao

[0049]

[0050]

[0051] Table 13 Effects of the compounding of thidiazuron with different concentrations and potassium dihydrogen phosphate on the early flowering of Litchi chinensis Sonn. cv. Feizixiao

[0052]

[0053] Table 14 Effects of the compounding of thidiazuron with different concentrations and fluid boron on the early flowering of Litchi chinensis Sonn. cv. Feizixiao

[0054]

[0055] Table 15 Effects of the compounding of potassium dihydrogen phosphate with different concentrations and fluid boron on the early flowering of Litchi chinensis Sonn. cv. Feizixiao

[0056]

[0057] (2) Compound agents

[0058] Table 16 Effects of compound agents on the early flowering of Litchi chinensis Sonn. cv. Feizixiao

[0059]

[0060]

[0061] Spray the crowns of Feizixiao litchi trees during the shoot control period with a compound mixture of two single-component agents at two different concentrations: After 20 days of observation, only the treatment with prohexadione-calcium + thidiazuron showed "white dots".

[0062] Spray the crowns of Feizixiao litchi trees during the shoot control period with a compound mixture of three or more agents: After 20 days of observation, all the Feizixiao litchi tree crowns sprayed with the agent combination mixture based on prohexadione-calcium + thidiazuron showed white dots. The combination with a white dot rate reaching 80% is: prohexadione-calcium 1.1 g / L + phthalanilic acid 100 mg / L + thidiazuron 1 mg / L + potassium dihydrogen phosphate 2 g / L + fluid boron 0.15 g / L. After 40 days, inflorescences emerged from all the trees that showed white dots after spraying.

[0063] Example 3

[0064] The test site of the present invention: National Tropical Fruit Tree Variety Improvement Center, Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences, Danzhou City, Hainan Province, China.

[0065] Test time: 2021 - 2022.

[0066] Test scale: 20 trees.

[0067] Investigation method: Organize experts for on-site monitoring.

[0068] Compare each index of the trees with early flowering induced by spraying the agent and the natural flowering trees as shown in Table 7 below.

[0069] Table 17 Influence of compound agents and natural flowering on the early flowering of Feizixiao litchi (data in 2022)

[0070]

[0071]

[0072] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A medicament for promoting early flowering of Litchi chinensis Sonn. cv. Feizixiao trees, characterized in that, It comprises the following components: calcium cyclanilide 0.4 - 1.8 g / L, phthalanilic acid 50 - 200 mg / L, thidiazuron 0.5 - 5 mg / L, potassium dihydrogen phosphate 1 - 4 g / L and fluid boron 0.1 - 0.3 g / L.

2. The medicament for early flowering of concubine smile litchi trees according to claim 1, characterized in that, It comprises the following components: calcium cyclanilide 1.1 g / L, phthalanilic acid 100 mg / L, thidiazuron 1 mg / L, potassium dihydrogen phosphate 2 g / L and fluid boron 0.15 g / L.

3. The method for using the medicament for early flowering of concubine smile litchi trees according to claim 1 or 2, characterized in that Mix the formulated components with water to make the medicament, and start spraying it on the Feizixiao litchi trees 7 - 9 days after the Start of Winter solar term. Spray the medicament every 6 - 8 days, and spray continuously for 3 - 4 times.

4. The method for using the medicament for early flowering of concubine smile litchi trees according to claim 3, characterized in that, Start spraying on the Feizixiao litchi trees 7 days after the Start of Winter solar term. Spray the medicament every 7 days, and spray continuously for 3 times.

5. The method for using the medicament for promoting early flowering of concubine smile litchi trees according to claim 3, characterized in that Spray the medicament once every 7 days.

6. Application of the medicament for early flowering of Feizixiao litchi trees according to claim 1 or 2 in early flowering of litchi.

Images