Composition and medicament for inhibiting sprouting of wheat ears and application of composition and medicament

Abstract

The invention relates to a composition and a medicament for inhibiting sprouting of wheat ears and application of the composition and the medicament, and belongs to the technical field of plant growth regulators. Experiments prove that when prohexadione calcium or ethephon is combined with S-abscisic acid for use, the effect of the composition is obviously superior to that of single use of S-abscisic acid, and the drug effect lasts for a longer time. It is proved for the first time that a synergistic effect exists between prohexadione calcium or ethephon and S-abscisic acid, the drug effect can be better achieved, and meanwhile the use amount of S-abscisic acid is remarkably reduced. The composition for inhibiting wheat pre-harvest germination provided by the invention effectively overcomes the defects of unstable effect, pesticide residue and the like in the prior art, can improve the effect of singly using S-abscisic acid, and achieves the purposes of controlling pre-harvest germination and not influencing wheat yield.

Description

Technical Field

[0001] This invention relates to a composition, agent, and application for inhibiting wheat ear sprouting, belonging to the technical field of plant growth regulators. Background Technology

[0002] In recent years, frequent extreme weather disasters have led to changes in agricultural climate resources, resulting in a severe reduction in crop yield and quality. Wheat ear sprouting refers to the phenomenon where unthreshed wheat grains sprout on the ears during the wheat ripening period, before or after harvest, when exposed to rainy or humid weather during storage. It is a significant natural disaster for wheat production in my country and also a global climate disaster. The winter wheat regions of the middle and lower reaches of the Yangtze River, the southwestern winter wheat region, and the northeastern spring wheat region are areas where ear sprouting is frequent and severe. In recent years, with global warming and the northward shift of the precipitation belt, rainy years during the wheat ripening period in the southern part of the Huang-Huai wheat region have gradually increased, and ear sprouting has shown a worsening trend.

[0003] Because wheat ear germination causes internal physiological changes in wheat seeds, it reduces grain yield and bulk density, particularly impacting flour quality. Most germinated wheat is inedible, affecting not only yield but also the edible value and storage quality of the seeds, resulting in significant economic losses. Therefore, wheat ear germination has always been an important area of ​​agricultural research worldwide.

[0004] Wheat ear sprouting is both a genetic trait and a physiological trait regulated by physiological and biochemical factors and the environment. Currently, measures to reduce losses caused by wheat ear sprouting mainly include: promoting resistant varieties and chemical control. However, there is a shortage of wheat ear sprouting-resistant varieties in nature, a lack of superior resistance genes, and difficulties in selecting suitable genetic components during breeding. Therefore, progress in cultivating ear sprouting-resistant varieties through genetic improvement methods is slow. Given the generally weak ear sprouting resistance of current wheat varieties and the complex ear sprouting formation mechanism, chemical control has become a rapid and effective approach to preventing and controlling wheat ear sprouting.

[0005] According to reports, the main chemical agents currently used to control wheat ear sprouting include abscisic acid (BAA), paclobutrazol, maleic hydrazine, chlormequat chloride, lodging inhibitors, and naphthaleneacetic acid (NAA), and even herbicides such as metolachlor and isopropylmetribonucleic acid are used. These single agents have certain limitations in their use. For example, using maleic hydrazine and chlormequat chloride after flowering may affect wheat pollination and grain filling, while using them during the booting stage may promote sprouting, resulting in unsatisfactory effects. Furthermore, maleic hydrazine residues pose a carcinogenic risk. Early application of herbicides such as metolachlor inhibits the growth of plant growth points and cell expansion, negatively impacting wheat growth, and the large dosages required pose risks. Other methods involve spraying plant growth regulators such as chlormequat chloride, paclobutrazol, and lodging inhibitors to control wheat plant height and prevent lodging, thereby reducing sprouting caused by waterlogging or excessive moisture in the ears. However, these methods are slow-acting and their effectiveness is inconsistent. Although inducing agents have been widely used in recent years, their effect on inhibiting wheat ear germination when used alone is not ideal.

[0006] Chinese invention patent application CN103271030A, published on September 4, 2013, discloses a compound hormone for inhibiting wheat ear germination. The compound hormone is prepared by dissolving abscisic acid and salicylic acid in tap water, with a dosage ratio of 0.70-1.40 g abscisic acid, 0.69-1.38 g salicylic acid, and 1 liter of tap water, at a pH of 5.8-6.7. This compound hormone is simple and flexible to use, has significant effects, and is non-toxic and harmless, making it suitable for the development of environmentally friendly novel wheat ear germination inhibitor products.

[0007] Chinese invention patent application CN120458095A, published on August 12, 2025, discloses a plant growth regulator for inhibiting plant germination and its application. The plant growth regulator for inhibiting plant germination is obtained by combining S-inducer and dihydrogibberellin; the molar ratio of dihydrogibberellin to S-inducer in the plant growth regulator for inhibiting plant germination is 0.2~2:0.1~1. This invention, by combining dihydrogibberellin and S-inducer, can effectively reduce the ratio of endogenous hormones gibberellin and abscisic acid in wheat grains, reduce α-amylase activity, decrease soluble sugar content, enhance the dormancy ability of wheat grains, and thus significantly reduce the germination rate of mature wheat grains.

[0008] While existing technologies have disclosed combinations of abscisic acid (ABA) with other compounds, these methods often involve excessively high ABA dosages, increasing costs. Furthermore, there are currently no officially registered wheat products for controlling ear sprouting. Therefore, providing an effective and low-cost product for ear sprouting control is of paramount importance. Summary of the Invention

[0009] The first objective of this invention is to provide a composition for inhibiting wheat ear germination, thereby addressing the problem in existing compositions with inducing agents as the main active ingredient that involve high amounts of inducing agents.

[0010] The second objective of this invention is to provide a medicament for inhibiting wheat ear germination, thereby addressing the problems of high cost and insufficient efficacy of existing medicaments for inhibiting wheat ear germination.

[0011] A third objective of the present invention is to provide a composition or agent for inhibiting wheat ear germination, and to provide an effective method for inhibiting wheat ear germination.

[0012] To achieve the above objectives, the technical solution of the composition for inhibiting wheat ear germination in this invention is as follows: A composition for inhibiting wheat spike germination, the composition comprising active ingredient A and active ingredient B; active ingredient A is S-inducer; active ingredient B is calcium cyclohexanoate or ethephon; when active ingredient B is calcium cyclohexanoate, the mass ratio of active ingredient A to active ingredient B is 1:(0.5-10); when active ingredient B is ethephon, the mass ratio of active ingredient A to active ingredient B is 1:(0.25-20).

[0013] The beneficial effects of the above technical solution are as follows: The composition for inhibiting wheat ear sprouting of this invention is a pioneering invention. Experiments have demonstrated that when calcium cyclohexane or ethephon is used in combination with S-inducer, its effect is significantly better than that of using S-inducer alone, and the duration of efficacy is longer. This invention is the first to demonstrate a synergistic effect between calcium cyclohexane or ethephon and S-inducer, achieving better efficacy while significantly reducing the amount of S-inducer used. The composition for inhibiting wheat ear sprouting provided by this invention effectively overcomes the shortcomings of existing technologies, such as unstable efficacy and pesticide residues, and can improve the effect of using S-inducer alone, achieving the goal of controlling ear sprouting without affecting wheat yield.

[0014] As a further improvement, when the active ingredient B is calcium cyclohexane, the mass ratio of active ingredient A to active ingredient B is 1:(1-10).

[0015] As a further improvement, when the active ingredient B is ethephon, the mass ratio of active ingredient A to active ingredient B is 1:(0.5-10).

[0016] To achieve the above objectives, the technical solution of the agent for inhibiting wheat ear germination in this invention is as follows: An agent for inhibiting wheat ear germination, wherein the active ingredient of the agent is the composition for inhibiting wheat ear germination; wherein the active ingredient A accounts for 2-20% of the agent by mass.

[0017] The beneficial effects of the above technical solution are as follows: This invention has demonstrated through field efficacy experiments that S-inducer and calcium cyclohexane or ethephon can produce a synergistic effect, which can effectively solve the problem of grain germination and ear sprouting that occurs during continuous rain during wheat harvest, and reduce the problems of quality decline and yield reduction caused by ear sprouting.

[0018] As a further improvement, the agent is a soluble or suspending agent.

[0019] As a further improvement, when the agent is a soluble agent, it mainly consists of the following components in mass percentage: 2-20% S-inducer, 10-20% ethephon, 3-5% wetting agent, 3-5% antifreeze agent, 10-20% ethanol, and the balance being water.

[0020] As a further improvement, when the agent is a suspension, it mainly consists of the following components by mass percentage: S-inducer 2-15%, calcium cyclohexane 15-20%, dispersant 6-8%, wetting agent 0-5%, antifreeze agent 3-5%, thickener 0.3-1%, and the balance being water.

[0021] To achieve the above objectives, the technical solution of this invention for using a composition or agent for inhibiting wheat ear germination in inhibiting wheat ear germination is as follows: The use of a composition or agent for inhibiting wheat ear germination in inhibiting wheat ear germination.

[0022] The beneficial effects of the above technical solution are as follows: the present invention has demonstrated through field efficacy experiments that, compared with the application of S-inducer, ethephon or calcium cyclohexane alone, the application of the composition that inhibits wheat ear germination to wheat can effectively promote seed dormancy and significantly reduce the germination rate of wheat ears.

[0023] As a further improvement, the pesticide is applied by spraying the entire plant 3 to 7 days before the wheat matures and is harvested. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the wheat germination effect after 36 hours in Experiment Example 1 of the present invention. Detailed Implementation

[0025] During the wheat harvest season, rainy and humid weather can reduce seed dormancy, often leading to sprouting problems in the wheat ears. Current methods to address wheat sprouting mainly involve utilizing the wheat's own sprouting resistance, spraying plant growth regulators like S-inducer, or implementing appropriate field management practices. Among these, S-inducer has been widely used in recent years; however, its inhibitory effect on wheat ear sprouting is not ideal when used alone. Therefore, this invention provides a composition for inhibiting wheat ear sprouting.

[0026] The composition for inhibiting wheat ear germination of the present invention consists of active ingredient A and active ingredient B; wherein active ingredient A is S-inducer; wherein active ingredient B is calcium cyclohexanoate or ethephon; wherein when active ingredient B is calcium cyclohexanoate, the mass ratio of active ingredient A to active ingredient B is 1:(0.5-10); wherein when active ingredient B is ethephon, the mass ratio of active ingredient A to active ingredient B is 1:(0.25-20).

[0027] S-inducer is one of the main hormones involved in plant dormancy, an important signaling substance for crop stress resistance, and a naturally occurring substance in plants that is environmentally friendly, safe, and easily degradable. This invention found that compared to the single application of S-inducer, the combined application of calcium cyclohexane or ethephon with S-inducer significantly reduced the germination rate of wheat ears, while its yield and quality were not severely affected. Calcium cyclohexane is a cyclohexane carboxylic acid plant growth regulator that primarily inhibits the synthesis of gibberellic acid in plants, thereby affecting the activity of α-amylase in seeds and reducing wheat germination activity. Its effect on inhibiting wheat ear germination is even better when combined with S-inducer. Ethylene produced by ethephon is an important hormone that promotes plant maturation; its combined use with S-inducer can promote seed dormancy.

[0028] Based on practical application needs, the agent for inhibiting wheat ear germination of the present invention is prepared into one of the following dosage forms, such as water emulsion, microemulsion, suspension, soluble concentrate, and emulsifiable concentrate, by adding wetting and dispersing agents, emulsifiers, penetrants, pH adjusters, antifreeze agents, thickeners, and dispersion media, according to methods known to those skilled in the art; preferably, it is a soluble concentrate or suspension.

[0029] The present invention will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments. The equipment and raw materials used are all commercially available or commonly used in the art. Unless otherwise specified, the methods in the following embodiments are conventional methods in the art.

[0030] The reagents used in the following examples and comparative examples were prepared in the following manner: The processing procedure for soluble solvents is as follows: the solvent is added to the reaction vessel, the measured materials are added in sequence, the mixture is pre-stirred and dissolved, and then other raw materials are added. After stirring for a certain period of time, a homogeneous and transparent solution is obtained.

[0031] The processing procedure for the suspension is as follows: After measuring the water and materials, add them to a shearing machine, shear them evenly, and then pump them into a sand mill for grinding for 2-3 hours to form a uniform suspension.

[0032] I. Specific embodiments of the composition for inhibiting wheat ear germination according to the present invention: Example 1 The composition for inhibiting wheat ear germination in this embodiment consists of S-inducer and ethephon; the mass ratio of S-inducer to ethephon is 1:10.

[0033] Example 2 The composition for inhibiting wheat ear germination in this embodiment consists of S-inducer and calcium cyclohexane; the mass ratio of S-inducer to calcium cyclohexane is 1:3.

[0034] Example 3 The composition for inhibiting wheat ear germination in this embodiment consists of S-inducer and ethephon; the mass ratio of S-inducer to ethephon is 2:1.

[0035] Example 4 The composition for inhibiting wheat ear germination in this embodiment consists of S-inducer and calcium cyclohexane; the mass ratio of S-inducer to calcium cyclohexane is 1:1.

[0036] Example 5 The composition for inhibiting wheat ear sprouting in this embodiment consists of S-inducer and ethephon; the mass ratio of S-inducer to ethephon is 1:5.

[0037] Example 6 The composition for inhibiting wheat ear germination in this embodiment consists of S-inducer and calcium cyclohexane; the mass ratio of S-inducer to calcium cyclohexane is 1:5.

[0038] Example 7 The composition for inhibiting wheat ear germination in this embodiment consists of S-inducer and ethephon; the mass ratio of S-inducer to ethephon is 1:1.

[0039] Example 8 The composition for inhibiting wheat ear germination in this embodiment consists of S-inducer and calcium cyclohexane; the mass ratio of S-inducer to calcium cyclohexane is 1:10.

[0040] II. Specific embodiments of the agent for inhibiting wheat ear germination according to the present invention: Example 9 The agent in this embodiment is a soluble concentrate comprising the composition of Example 1 for inhibiting wheat ear germination, specifically composed of the following components by mass fraction: Induce 2%, ethephon 20%, ethanol (cosolvent) 10%, ethylene glycol (antifreeze) 5%, alkyl glycoside APG (surfactant) 3%, Tween-80 (surfactant) 3%, and water to make up the balance.

[0041] Example 10 The agent in this embodiment is a suspension containing the composition of Example 2 that inhibits wheat ear germination, specifically composed of the following components by mass fraction: Inducer 5%, calcium cyclohexane 15%, polycarboxylate DT101 (dispersant) 3%, sodium lignosulfonate BorresperseNA (dispersant) 3%, sodium dodecylbenzenesulfonate (wetting agent) 2%, xanthan gum 9280 (thickener) 0.5%, ethylene glycol (antifreeze agent) 3%, water to make up the balance.

[0042] Example 11 The agent in this embodiment is a soluble concentrate comprising the composition of Example 3 for inhibiting wheat ear germination, specifically composed of the following components by mass fraction: Induce 20%, ethephon 10%, ethanol 20% (cosolvent), ethylene glycol (antifreeze) 3%, alkyl glycoside APG (surfactant) 2%, Tween 80 (surfactant) 3%, water to make up the balance.

[0043] Example 12 The agent in this embodiment is a suspension containing the composition of Example 4 that inhibits wheat ear germination, specifically composed of the following components by mass fraction: Inducer 15%, calcium cyclohexane 15%, polycarboxylate DT101 (dispersant) 3%, naphthalene sulfonate Morwet D-425 (dispersant) 5%, xanthan gum 9280 (thickener) 0.5%, ethylene glycol (antifreeze) 3%, water to make up the balance.

[0044] Example 13 The agent in this embodiment is a soluble concentrate comprising the composition of Example 5 for inhibiting wheat ear germination, specifically composed of the following components by mass fraction: Induce 5%, ethephon 25%, ethanol (cosolvent) 20%, ethylene glycol (antifreeze) 3%, alkyl glycoside APG (surfactant) 3%, Tween 80 (surfactant) 3%, water to make up the balance.

[0045] Example 14 The agent in this embodiment is a suspension containing the composition of Example 6 that inhibits wheat ear germination, specifically composed of the following components by mass fraction: Inducer 5%, calcium cyclohexane 25%, polycarboxylate DT101 (dispersant) 3%, naphthalene sulfonate Morwet D-425 (dispersant) 5%, xanthan gum 9280 (thickener) 0.3%, ethylene glycol (antifreeze) 3%, water to make up the balance.

[0046] Example 15 The agent in this embodiment is a soluble concentrate comprising the composition of Example 7 for inhibiting wheat ear germination, specifically composed of the following components by mass fraction: Induce 10%, ethephon 10%, ethanol (cosolvent) 20%, ethylene glycol (antifreeze) 3%, alkyl glycoside APG (surfactant) 3%, Tween 80 (surfactant) 3%, water to make up the balance.

[0047] Example 16 The agent in this embodiment is a suspension containing the composition of Example 8 that inhibits wheat ear germination, specifically composed of the following components by mass fraction: Inducer 2%, calcium cyclohexane 20%, sodium lignosulfonate 301M (dispersant) 3%, naphthalene sulfonate Morwet D-425 (dispersant) 5%, xanthan gum 9280 (thickener) 0.5%, ethylene glycol (antifreeze) 3%, water to make up the balance.

[0048] III. Experimental Examples: Application of Compositions or Agents for Inhibiting Wheat Ear Sprouting in Inhibiting Wheat Ear Sprouting Experiment Example 1: Indoor Screening Test to Inhibit Wheat Germination Test period: October 15-25, 2024.

[0049] Experimental crop: wheat, variety Zhengmai 1860.

[0050] Test location: Bioassay Laboratory, Zhengshi Chemical R&D Center.

[0051] Target of prevention and control: Controlling wheat germination.

[0052] Test reagents: The reagents prepared according to Examples 1-8, the comparative reagents, 40% ethephon aqueous solution and 15% calcium WDG were commercially available formulations, all from Zhengzhou Zhengshi Chemical Products Co., Ltd., and 10% S-inducer liquid was commercially available.

[0053] Experimental Procedure: Wheat seeds were soaked in solutions prepared according to the reagents and concentrations described in Examples 1-8 and the comparative examples in Table 1. Wheat seeds were immersed in the corresponding solutions for each treatment for 30 minutes, then removed, their surface moisture was dried, and they were placed in moist petri dishes lined with filter paper to observe germination. A total of 12 treatments were set up, with each treatment repeated 4 times, 25 seeds / dish. (Ambient temperature 25 degrees Celsius) Wheat germination was monitored daily, with the rupture of the seed coat at the embryo level as the criterion for germination. The experimental arrangements are shown in Table 1.

[0054] Inhibition rate = (germination rate of blank control - germination rate of treatment) / germination rate of blank control.

[0055] Table 1 Experimental Design and Arrangement

[0056] Wheat grains germinate within 36 hours as follows Figure 1 As shown in Table 2, the effects of each treatment group on wheat germination rate are illustrated. Figure 1 As shown in Table 2, the products prepared according to Examples 1-8 significantly reduced the germination rate of wheat seeds compared to the water control at 36h and 72h after application. Specifically, the germination rate of wheat treated with the agent in Example 4 decreased to 9%, with an inhibition rate of 91% compared to the blank control, showing a highly significant difference from other treatments. At 72h, the germination rate was 38%, with the reduction in germination rate in Examples 2, 7, 3, and 6 being second only to that in Example 4. In Comparative Examples 4 and 5, the germination rates of wheat treated with calcium cyclamate and ethephon at 36h and 72h showed no significant difference compared to the water control, indicating that calcium cyclamate and ethephon alone did not inhibit wheat germination. Single-agent inducing agent treatment could reduce the germination rate of wheat to some extent, but the effect was not as good as the mixed treatment. The inhibitory effect of the inducing agent mixed with calcium cyclamate and ethephon on wheat germination was higher than that of the single-agent treatment. This indicates that the agents prepared according to this invention can significantly reduce the germination rate of wheat, and the mixed treatment has a synergistic effect.

[0057] Table 2 Effects of each treatment on wheat germination rate

[0058] Note: Lowercase letters indicate significant differences (P < 0.05).

[0059] Experiment Example 2: Field Experiment on Germination of Wheat Ears This experiment was conducted in accordance with the People's Republic of China agricultural industry standard "Guidelines for Field Efficacy Testing of Pesticides (II)" (GB / T17980.132-2004).

[0060] Trial period: May 28, 2025 - June 4, 2025.

[0061] Experimental crop: wheat, Zhengmai 1860.

[0062] Test location: Qi County, Henan Province.

[0063] Target of prevention and control: Inhibiting wheat ear sprouting.

[0064] Test reagents: The reagents prepared according to Examples 1-8 were all prepared by the laboratory of Zhengzhou Zhengshi Chemical Products Co., Ltd.; the comparative reagents were commercially available formulations, and a water blank control was set up.

[0065] Experimental Methods: A randomized block design was used. Each plot was 22 square meters, with three replicates per treatment. The amount of pesticide sprayed per plot was 1 L. Sprouting control agents were applied to wheat ears after 4 PM on May 29th, at the wheat maturity stage. Examples 1-8 and Comparative Examples 1-5 were applied once. On May 30th, the entire plant was sprayed with water to maintain moisture, and localized bagging was used for moisture retention. The bags were sprayed with water five times daily to keep the wheat ears moist. On June 1st, watering continued to maintain moisture. On June 2nd, the occurrence of sprouting was investigated, and watering continued. On June 3rd, the sprouting status was investigated again. The experimental design and treatments are shown in Table 3.

[0066] Table 3 Experimental Design and Treatment

[0067] The results are shown in Table 4. As can be seen from the table, in the field trial, after spraying wheat with the agent of this invention and simulating rainfall to moisten the wheat ears, the germination rate of wheat treated in Examples 1-8 was significantly reduced 3 and 4 days after application. This was significantly different from the water control and the single-agent treatments in Comparative Examples 1-5, indicating that the mixed agents prepared according to this invention have a significant synergistic effect on inhibiting wheat ear germination. The falling value of wheat grains in each treatment was higher than that in the water control. The falling value reflects different degrees of germination damage in wheat; the lower the falling value, the higher the degree of germination damage. As shown in the table, the falling values ​​of wheat treated in Examples 4, 7, 6, 5, 3, and 2 ranged from 192 seconds to 156 seconds, far exceeding the 62 seconds of the water control, demonstrating a significant synergistic effect. The falling values ​​of wheat treated with the agents in Examples 1-8 were all higher than those in the water control and Comparative Examples 2, 3, 4, and 5, indicating that the mixture of inducing agent, ethephon, and calcium cyclamate significantly reduced the germination rate of wheat ears and had a synergistic effect. The protein and crude starch content of wheat were not significantly affected. This indicates that the agent of the present invention has a significant control effect on wheat ear germination, can significantly reduce wheat ear germination under continuous rainy weather, and at the same time does not significantly change the protein and crude starch content of wheat, thus minimizing the impact of ear germination on wheat quality.

[0068] Table 4 Effects of each treatment on wheat germination rate and quality

[0069] The above experimental results demonstrate that the agent of this invention can significantly reduce the germination rate of wheat ears without severely affecting yield and quality. The inducing agent, when mixed with other agents, reduces the dosage of inducing agents to some extent, thereby lowering costs. Mixing also reduces the dosage of other single agents. This invention, to a certain extent, reduces the loss of wheat quality under adverse weather conditions such as continuous rainfall, improves the nutritional and processing quality of wheat, and greatly enhances its marketability, thus having significant implications for production.

[0070] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. The scope of patent protection of the present invention shall be determined by the claims. Similarly, any equivalent structural changes made based on the content of the present invention's specification shall also be included within the scope of protection of the present invention.

Claims

1. A composition for inhibiting wheat spike germination, characterized in that: The composition comprises active ingredient A and active ingredient B; active ingredient A is S-inducer; active ingredient B is calcium cyclohexanoate or ethephon; when active ingredient B is calcium cyclohexanoate, the mass ratio of active ingredient A to active ingredient B is 1:(0.5-10); when active ingredient B is ethephon, the mass ratio of active ingredient A to active ingredient B is 1:(0.25-20).

2. The composition for inhibiting wheat ear germination according to claim 1, characterized in that: When the active ingredient B is calcium cyclohexane, the mass ratio of active ingredient A to active ingredient B is 1:(1-10).

3. The composition for inhibiting wheat ear germination according to claim 1, characterized in that: When the active ingredient B is ethephon, the mass ratio of active ingredient A to active ingredient B is 1:(0.5-10).

4. An agent for inhibiting wheat ear germination, characterized in that: The active ingredient of the agent is the composition for inhibiting wheat ear sprouting as described in any one of claims 1 to 3; the active ingredient A accounts for 2 to 20% of the agent's mass.

5. The agent for inhibiting wheat ear sprouting according to claim 4, characterized in that: The agent is a soluble or suspending agent.

6. The agent for inhibiting wheat ear sprouting according to claim 5, characterized in that: When the agent is a soluble agent, it mainly consists of the following components by mass percentage: S-inducer 2-20%, ethephon 10-20%, surfactant 3-8%, antifreeze 3-5%, cosolvent 5-30%, and the balance being water.

7. The agent for inhibiting wheat ear sprouting according to claim 5, characterized in that: When the agent is a suspension, it mainly consists of the following components by mass percentage: S-inducer 2-15%, calcium cyclohexane 15-20%, dispersant 6-8%, wetting agent 0-5%, antifreeze agent 3-5%, thickener 0.3-1%, and the balance being water.

8. The use of a composition for inhibiting wheat ear germination as described in any one of claims 1 to 3, or an agent for inhibiting wheat ear germination as described in any one of claims 4 to 7, in inhibiting wheat ear germination.

9. The application of the composition for inhibiting wheat ear germination according to claim 8 or the agent for inhibiting wheat ear germination in inhibiting wheat ear germination, characterized in that: Apply the pesticide by spraying the entire plant 3 to 7 days before wheat maturity and harvest.

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