A medicament for regulating the growth of wheat and a preparation method thereof

Abstract

The present application provides a kind of medicament for regulating the growth of wheat and its preparation method, including the following components of raw materials: auxin, plant growth balance factor, solvent.The present application uses auxin and plant growth balance factor as effective component, combined with specific polar solvent system, so that the prepared medicament can inhibit the apical dominance of wheat, reduce the plant height of wheat, promote the increase of tillering and root number, significantly improve the stress resistance of wheat, thereby increasing the yield of wheat.At the same time, it can also improve the content of soluble sugar and chlorophyll content in wheat leaves, promote the photosynthetic rate of wheat, thereby promoting the accumulation of photosynthetic products and assimilates, further regulating the growth condition of wheat.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of pesticides, specifically relates to IPC classification number A01N59 / 00, and more particularly to a growth regulator for wheat and a preparation method thereof. BACKGROUND

[0002] Compared with traditional technology, plant growth regulators increase the productivity of plants by regulating gene expression. In recent years, the types of plant growth regulators are increasing, and the application in the field of agricultural production is also more and more extensive.

[0003] Wheat is a major food crop and is widely planted all over the world. However, in the existing technology, the poor stress resistance and apical dominance in the planting process of wheat result in less tillering, further reduces the effective ear of wheat, and causes low yield.

[0004] Therefore, a suitable plant growth regulator is needed to improve the problems in the growth of wheat, so as to effectively improve the yield of wheat.

[0005] Chinese patent CN111657288A discloses a pesticide composition containing brassinolide, indole butyric acid and plant elicitor, which can promote crop rooting and improve the stress resistance and disease resistance of crops. Chinese patent CN104855384B discloses a pesticide composition containing 2-(acetyloxy)benzoic acid and indole butyric acid, which has the effects of promoting growth and increasing yield on rice, wheat, cucumber and tomato. However, the patent does not test the stability of the obtained composition, and it is unknown whether the properties of the composition are stable, which may have some influence on the efficacy of the composition. SUMMARY

[0006] In view of the above-mentioned problems, the present application provides a growth regulator for wheat, which comprises the following raw materials: auxin, plant growth balance factor and solvent.

[0007] In some preferred embodiments, the raw materials comprise the following components by weight: auxin 0.6-1.2 parts, plant growth balance factor 0.05-0.2 parts, and solvent to make up to 100 parts.

[0008] In some preferred embodiments, the weight ratio of the auxin and the plant growth balance factor is (8-12):1.

[0009] Preferably, the weight ratio of the auxin and the plant growth balance factor is 9:1.

[0010] In some preferred embodiments, the auxin comprises indole butyric acid, and the plant growth balance factor comprises S-elicitor.

[0011] In some preferred embodiments, the solvent is a polar solvent.

[0012] In some preferred embodiments, the polar solvent includes pure water, ethanol, propylene glycol.

[0013] In some existing plant growth regulators, S-elicitor is often used to improve the stress resistance of plants. However, due to its own characteristics, S-elicitor is easy to decompose under light conditions, and the growth of wheat cannot be separated from light. Therefore, when S-elicitor is used under light, it is easy to lose activity and difficult to play its role. The applicant found in the research that when used with a specific indole butyric acid, especially in a specific polar solvent system, the prepared agent can effectively inhibit the decomposition of S-elicitor under light, and excellent stress resistance can be played. At the same time, it can also improve the content of soluble sugar and chlorophyll in wheat leaves, promote the photosynthetic rate of wheat, thereby promoting the accumulation of photosynthetic products and assimilates, and further regulating the growth of wheat. However, the solubility of indole butyric acid in water is not good, and stratification and flocculation are easy to occur in water. The applicant accidentally found that when solvents with different polarities are compounded in a specific ratio, not only the solubility of indole butyric acid in the system is increased, avoiding stratification and precipitation in the system, but also the photodecomposition of S-elicitor is reduced. The possible reason is that due to the difference in polarity between water, propylene glycol and ethanol, on the one hand, the molecular structure of indole butyric acid can be solvated and dissolved, and on the other hand, solvents with different polarities can produce attraction and induce binding with functional groups on the S-elicitor molecule, forming a more stable structure, so that S-elicitor is not easy to decompose under light conditions, thereby realizing excellent stress resistance.

[0014] In some preferred embodiments, the weight ratio of pure water to ethanol is (2.5-3.3):1.

[0015] Preferably, the weight ratio of pure water to ethanol is (2.8-3.2):1.

[0016] More preferably, the weight ratio of pure water to ethanol is 3:1.

[0017] In some preferred embodiments, the weight ratio of ethanol to propylene glycol is 1:(5.5-6.3).

[0018] Preferably, the weight ratio of ethanol to propylene glycol is 1:(5.8-6.1).

[0019] More preferably, the weight ratio of ethanol to propylene glycol is 1:5.9.

[0020] In some preferred embodiments, the dosage form of the agent includes a soluble liquid agent.

[0021] Another aspect of the present application provides a method for preparing a medicament for regulating the growth of wheat, comprising at least the following steps:

[0022] (1) Weighing each raw material according to the proportion;

[0023] (2) First, add the solvent into the stirring kettle, then add the auxin and the plant growth balancing factor into the same stirring kettle, and stir until each raw material is completely dissolved;

[0024] (3) After the stirring is completed, take samples as required, and after the laboratory detection is qualified, the medicament is obtained.

[0025] Beneficial effects: The present application uses the auxin and the plant growth balancing factor as the effective components, and combines with a specific polar solvent system, so that the prepared medicament can inhibit the apical dominance of wheat. When the medicament is sprayed at the wheat seedling stage, the plant height of wheat is reduced by 3%, the tillering is increased by 6%, and the root number is increased by 20%, which significantly improves the stress resistance of wheat, thereby increasing the yield of wheat. Meanwhile, the content of soluble sugar and the content of chlorophyll in the wheat leaves are improved, the photosynthetic rate of wheat is promoted, thereby promoting the accumulation of photosynthetic products and assimilates, and further regulating the growth condition of wheat. DETAILED DESCRIPTION

[0026] Example 1

[0027] The present application provides a medicament for regulating the growth of wheat, which comprises the following components by weight: indole butyric acid 0.9 parts, S-elicitor 0.1 part, ethanol 10 parts, propylene glycol 59 parts, and pure water 30 parts.

[0028] Another aspect of the present application provides a method for preparing a medicament for regulating the growth of wheat, comprising the following steps:

[0029] (1) Weighing each raw material according to the proportion;

[0030] (2) The pure water, the propylene glycol, and the ethanol are sequentially pumped into the stirring kettle by the gear pump, then the indole butyric acid and the S-elicitor solid raw materials are poured into the same stirring kettle, and the stirring is performed for 90 minutes until the indole butyric acid and the S-elicitor are completely dissolved;

[0031] (2) After the stirring is completed, take samples as required, and after the laboratory detection is qualified, the medicament is obtained.

[0032] Example 2

[0033] The present application provides a medicament for regulating the growth of wheat, which comprises the following components by weight: indole butyric acid 0.9 parts, S-elicitor 0.1 part, ethanol 10 parts, propylene glycol 56 parts, and pure water 33 parts.

[0034] Another aspect of the embodiment provides a preparation method of the medicament for regulating wheat growth, comprising the following steps:

[0035] (3) Weighing each raw material according to the proportion;

[0036] (4) Puring water, propylene glycol and ethanol into the stirring kettle in sequence by gear pump, then pouring indole butyric acid and S-antimycin solid raw material into the same stirring kettle, stirring for 90 minutes until indole butyric acid and S-antimycin are completely dissolved;

[0037] (2) After the stirring is completed, sampling is performed according to the requirement, and the medicament is obtained after the laboratory detection is qualified.

[0038] Example 3

[0039] The embodiment provides a medicament for regulating wheat growth, comprising the following components by weight: indole butyric acid 0.9 parts, S-antimycin 0.1 part, ethanol 10 parts, propylene glycol 63 parts and pure water 26 parts.

[0040] Another aspect of the embodiment provides a preparation method of the medicament for regulating wheat growth, comprising the following steps:

[0041] (1) Weighing each raw material according to the proportion;

[0042] (2) Puring water, propylene glycol and ethanol into the stirring kettle in sequence by gear pump, then pouring indole butyric acid and S-antimycin solid raw material into the same stirring kettle, stirring for 90 minutes until indole butyric acid and S-antimycin are completely dissolved;

[0043] (3) After the stirring is completed, sampling is performed according to the requirement, and the medicament is obtained after the laboratory detection is qualified.

[0044] Example 4

[0045] The embodiment provides a medicament for regulating wheat growth and a preparation method, and the specific implementation manner is the same as that of the embodiment 1, and the difference lies in that the ethanol is 17 parts and the propylene glycol is 52 parts.

[0046] Example 5

[0047] The embodiment provides a medicament for regulating wheat growth and a preparation method, and the specific implementation manner is the same as that of the embodiment 1, and the difference lies in that the ethanol is 9 parts and the water is 31 parts.

[0048] Performance test

[0049] After the medicaments for regulating wheat growth prepared in the examples 1-5 are placed at room temperature for 7 days, whether there is stratification and precipitation is observed, and the results are recorded in Table 1.

[0050] Table 1

[0051]

[0052]

[0053] The above description is merely that of the preferred embodiments of the present application and is not intended to limit the present application. Since numerous modifications and changes can be made in the above-described embodiments, it is intended that all such modifications and changes be within the scope of the present application as set forth in the appended claims.

Claims

1. A growth regulator for wheat, characterized in that, The raw materials, by weight, include the following components: 0.6-1.2 parts of auxin-like substances, 0.05-0.2 parts of plant growth balancing factors, and solvent to make up to 100 parts; The auxin-like substances include indolebutyric acid, and the plant growth balancing factors include S-inducer; The solvent is a polar solvent; the polar solvent includes purified water, ethanol, and propylene glycol; The weight ratio of purified water to ethanol is (2.5-3.3):1; The weight ratio of ethanol to propylene glycol is 1:(5.5-6.3).

2. The agent for regulating wheat growth according to claim 1, characterized in that, The weight ratio of the auxin-like hormone and the plant growth balance factor is (8-12):

1.

3. The agent for regulating wheat growth according to claim 1, characterized in that, The dosage form of the drug includes soluble liquid.

4. A method for preparing a wheat growth regulator according to any one of claims 1-3, characterized in that, At least the following steps are included: (1) Weigh each raw material according to the proportions; (2) First, add the solvent into the stirred tank, then add the auxin-like substances and plant growth balancing factors into the same stirred tank, and stir until all the raw materials are completely dissolved. (2) After stirring, take a sample as required. Once the sample passes the laboratory test, it is ready.

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