A composition for increasing yield of wheat, growth regulator and use thereof

Abstract

The present application relates to the wheat planting technical field, specifically relates to a kind of composition for improving the yield of wheat, growth regulator and its application.The composition is compounded by choline chloride and lysine according to equal mass ratio, the growth regulator is prepared by dissolving the composition in water, and in the growth regulator, the concentration of choline chloride is 80~120 mg / L.The growth regulator of the present application compared with single choline chloride, the grain weight and yield of wheat in filling stage are significantly improved, and has good application and popularization value.

Description

Technical Field

[0001] This invention relates to the field of wheat cultivation technology, and more specifically to a composition for increasing wheat yield, a growth regulator, and its application. Background Technology

[0002] Wheat is an important food crop in my country. Among the factors influencing wheat yield, excluding genetic factors, grain filling is the critical period for grain weight formation. In modern high-yield wheat production systems, improving grain filling through agronomic measures is particularly important. As the growth period progresses, wheat biomass increases rapidly, making topdressing more difficult and depleting soil nutrients. Foliar fertilization is not only convenient to implement but also provides the nutrients needed for wheat growth and development during the grain filling stage.

[0003] Choline chloride is a common plant growth regulator. Appropriate use of exogenous choline chloride and its structural analogs can promote seed germination, increase plant growth rate, and enhance resilience under abiotic stress. Amino acids are the building blocks of nitrogen-containing macromolecules such as proteins. They can serve as metabolic intermediates or osmotic regulators, and different amino acids also play important physiological roles in regulating crop metabolism and stress resistance. Although some studies have explored the functions of choline chloride and its analogs, the effect of using choline chloride as the sole active ingredient in increasing wheat yield is limited. Summary of the Invention

[0004] The purpose of this invention is to provide compositions, growth regulators and their applications for increasing wheat yield, in order to solve the above-mentioned technical problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] In a first aspect, the present invention provides a composition for increasing wheat yield, comprising choline chloride and lysine in equal mass ratios.

[0007] In the later stages of wheat growth, root systems begin to age, the climate becomes drier, and soil nutrients are largely depleted, leading to premature aging of the plants and insufficient grain filling, thus reducing wheat yield. Foliar nitrogen application is not only convenient to implement but also helps to quickly replenish nutrients during the wheat grain-filling period, which is of great significance for ensuring good growth in the later stages. Therefore, this invention aims to improve the wheat grain-filling rate and extend the grain-filling time through foliar spraying of a compound of choline chloride and amino acids, thereby increasing wheat yield and providing technical support for wheat production.

[0008] In a second aspect, the present invention provides a growth regulator for increasing wheat yield, comprising the aforementioned composition.

[0009] Furthermore, the growth regulator is prepared by dissolving the composition in water.

[0010] Furthermore, the concentration of choline chloride in the growth regulator is 80-120 mg / L.

[0011] Thirdly, the present invention provides the use of the composition or the growth regulator in increasing wheat yield.

[0012] Fourthly, the present invention provides the use of the composition or the growth regulator in prolonging the grain-filling time of wheat.

[0013] Fifthly, the present invention provides the use of the composition in improving the grain-filling rate of wheat.

[0014] Sixthly, the present invention provides a method for increasing wheat yield, comprising:

[0015] The aforementioned growth regulator was applied as a foliar spray during the wheat's jointing stage.

[0016] Furthermore, the dosage of the growth regulator is 28-30 L per acre of wheat.

[0017] The present invention has the following beneficial effects:

[0018] This invention is the first to discover that foliar spraying of choline chloride solution during the wheat jointing stage can increase wheat grain weight and yield during the grain filling stage, but the effect is limited. However, the combined use of choline chloride and lysine can significantly increase wheat grain weight and yield during the grain filling stage, indicating that choline chloride and lysine have a synergistic effect.

[0019] The method for increasing wheat yield of this invention is simple to operate, and the reagents used, choline chloride and lysine, are both commercially available and inexpensive. Furthermore, all reagents used in this method are environmentally friendly. Choline chloride has extremely low toxicity and is commonly used as a feed additive, while lysine is a non-toxic compound. Therefore, this method is safe and feasible, poses no risk to human health or environmental pollution, and has good application and promotion value. Attached Figure Description

[0020] Figure 1 The effect of the combination of choline chloride and lysine on wheat grain filling was investigated, where C represents 100 mg / L choline chloride and C+K represents 100 mg / L choline chloride + 100 mg / L lysine. Detailed Implementation

[0021] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments, but this should not be construed as limiting the invention. Unless otherwise specified, the technical means used in the following embodiments are conventional means well known to those skilled in the art, and the materials, reagents, etc. used in the following embodiments are commercially available unless otherwise specified.

[0022] Example 1: Composition and growth regulator for increasing wheat yield

[0023] The composition for increasing wheat yield in this embodiment is a compound of choline chloride and lysine in equal mass ratios.

[0024] The growth regulator in this embodiment is prepared by dissolving choline chloride and lysine in water. The concentration of choline chloride in the growth regulator is 100 mg / L, and the concentration of lysine is 100 mg / L.

[0025] Example 2: Composition and growth regulator for increasing wheat yield

[0026] The composition for increasing wheat yield in this embodiment is a compound of choline chloride and lysine in equal mass ratios.

[0027] The growth regulator in this embodiment is prepared by dissolving choline chloride and lysine in water. The concentration of choline chloride in the growth regulator is 80 mg / L, and the concentration of lysine is 80 mg / L.

[0028] Example 3: Composition and growth regulator for increasing wheat yield

[0029] The composition for increasing wheat yield in this embodiment is a compound of choline chloride and lysine in equal mass ratios.

[0030] The growth regulator in this embodiment is prepared by dissolving choline chloride and lysine in water. The concentration of choline chloride in the growth regulator is 120 mg / L, and the concentration of lysine is 120 mg / L.

[0031] The following example, Example 1, demonstrates the effects of the composition and growth regulator of the present invention on delaying wheat senescence, extending wheat grain-filling time, and increasing wheat yield.

[0032] Experimental treatments and methods: On a sunny, windless afternoon during the wheat jointing stage, the growth regulator of Example 1 (denoted as C+K) was sprayed on the leaves. Choline chloride solution (C) was applied alone as a control (two concentrations: C100: 100 mg / L, C200: 200 mg / L). Water was sprayed as a blank control (CK). Each treatment was repeated in triplicate, with each replicate covering 12 square meters. The amount sprayed per acre was 30 L.

[0033] The experimental data and research results are as follows:

[0034] (1) Effect of foliar spraying of choline chloride and lysine compound agent on wheat yield during the jointing stage

[0035] As shown in Table 1, compared with choline chloride alone, spraying choline chloride + lysine (Lys) at the jointing stage can significantly increase the thousand-grain weight and yield of wheat, and also prolong the grain-filling time of wheat.

[0036] Table 1. Effects of choline chloride and lysine combination on wheat yield and its components.

[0037]

[0038] Note: Different lowercase letters indicate significant differences between treatments, the same applies to the table below (P < 0.05).

[0039] (2) Effects of foliar spraying of choline chloride and lysine compound agent on wheat grain filling during the jointing stage

[0040] like Figure 1 As shown, compared with choline chloride alone, the combination of choline chloride and lysine can increase the thousand-grain weight after flowering, and the difference in thousand-grain weight is significant between 35 and 45 days. The grain filling rate shows a single-peak curve, with a peak at 25-35 days after flowering. Compared with choline chloride alone, the combination of choline chloride and lysine can increase the grain filling rate after flowering.

[0041] It should be noted that when numerical ranges are mentioned in the claims of this invention, it should be understood that the two endpoints of each numerical range and any value between the two endpoints can be selected. To avoid redundancy, the present invention describes preferred embodiments.

[0042] Although preferred embodiments of the invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including both the preferred embodiments and all changes and modifications falling within the scope of the invention.

[0043] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. Use of a growth regulator for increasing the yield of wheat, characterized in that The growth regulator is prepared by dissolving choline chloride and lysine in water, the concentration of choline chloride in the growth regulator is 80-120 mg / L, and the mass ratio of choline chloride to lysine is equal.

2. The use of the growth regulator in claim 1 in prolonging the wheat filling time.

3. The use of the growth regulator in claim 1 in increasing the wheat filling rate.

4. A method of increasing yield in wheat, characterized by, Comprising: Spraying the growth regulator in claim 1 on the leaves of wheat at the jointing stage.

5. The method of claim 4, wherein, The amount of the growth regulator is 28-30 L per mu of wheat.

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