Application of naphthylethyl amino ethyl ester compound in regulation of plant growth

Abstract

The invention discloses an application of a naphthylethyl amino ethyl ester compound in plant growth regulation in the technical field of plant growth stimulants, which can effectively promote the growth of corn plants and achieve the effect of stimulating the growth of crops. The naphthyl ethylamino ethyl esterification compound has the effects of promoting seed germination, enhancing photosynthesis, promoting plant growth, increasing crop yield, improving fruit quality, enhancing plant stress resistance and the like, and is a broad-spectrum active regulator. And the production process is simple, and industrial production is easy to realize.

Description

Technical Field

[0001] The present invention belongs to the technical field of plant growth stimulants, and specifically relates to a naphthyl ethylaminoethyl ester compound that can effectively promote the growth of corn plants and achieve the effect of stimulating crop growth. Background Art

[0002] Naphthylacetic acid is a plant growth regulator that can rapidly promote cell division and expansion, induce the formation of adventitious roots, and has functions such as regulating growth, promoting rooting, sprouting, flowering, preventing flower and fruit drop, forming seedless fruits, promoting early maturity, and increasing yield. At the same time, it can also enhance the drought resistance, disease resistance, and salt tolerance of plants. It is a broad-spectrum, highly effective, and low-toxic plant growth regulator; N,N-diethyl ethanolamine is a colorless or slightly yellow liquid, commonly used as an intermediate in the synthesis of drugs, detergents, and surfactants, and also used in oilfield chemicals, coatings, and plastic additives. It is miscible with water, ethanol, benzene, ether, and acetone, etc.; Currently, most of the plant growth regulators in application are synthetic compounds. By introducing other active groups onto naphthylacetic acid, it is expected to obtain compounds with biological activity. However, most of the reaction rates are slow, the yields are low, and by-products are easily generated. Therefore, it is very necessary to develop a preparation method of a pollution-free plant growth stimulant for protecting the environment and improving the quality of agricultural products.

[0003] Therefore, developing abscisic acid analogues with low cost, higher activity, and better stability is of great significance for accelerating the application of this type of plant growth regulator in agricultural production, improving the quality and yield of agricultural products, and maintaining environmental safety, etc. Summary of the Invention

[0004] In view of the above situation, to overcome the defects of the prior art, the purpose of the present invention is to provide an application of a naphthyl ethylaminoethyl ester compound in regulating plant growth activity.

[0005] To achieve the above purpose, the present invention provides a naphthyl ethylaminoethyl ester, and its structural formula is:

[0006] The present invention also provides the application of the above naphthyl ethylaminoethyl ester, which can be used as a plant growth stimulant, and the usage concentration as a plant growth stimulant is 5 - 40 ppm.

[0007] Preferably, when used as a plant growth stimulant, the selected plant is corn.

[0008] Furthermore, when used as a plant growth stimulant, the specific usage method is at least one of seed soaking, root irrigation, and leaf spraying; Further, when used as a plant growth stimulant, the concentration for seed soaking is 10 - 40 ppm; the concentration for root irrigation is 5 - 20 ppm; and the concentration for spraying is 20 - 30 ppm.

[0009] The beneficial effects achieved by the present invention are as follows: The naphthyl ethylaminoacetate of the present invention can effectively promote the growth of corn plants, significantly promote the growth of corn roots, increase the biomass of plants, and has the advantage of being pollution-free to the environment, and can be widely used as a plant growth stimulant. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to further illustrate the structure and performance of the product, the following drawings are given.

[0011] Figure 1 is the structural formula of naphthyl ethylaminoacetate; Figure 2 is the high-resolution mass spectrum of the prepared naphthyl ethylaminoacetate; Figure 3 is the comparison chart of the growth promotion of corn hydroponics by the naphthyl ethylaminoacetate prepared in Example 1; DETAILED DESCRIPTION OF THE INVENTION

[0012] The present invention will be further described below in conjunction with specific embodiments, but the present invention is not limited to the following embodiments. The methods are all conventional methods unless otherwise specified. The raw materials can all be obtained from public commercial channels unless otherwise specified.

[0013] EXPERIMENTAL EXAMPLE 1. Corn seed germination experiment The naphthyl ethylaminoacetate and naphthylacetic acid prepared in Example 1 were respectively formulated into standard solutions of 10 ppm, 20 ppm, and 40 ppm. 15 corn seeds were soaked with 10 ppm, 20 ppm, and 40 ppm naphthylacetic acid solutions and naphthyl ethylaminoacetate respectively, and 15 corn seeds treated with water were used as a control. After 3 days, the germination rate was observed and counted.

[0014] Germination rate (%) = (Number of germinated seeds tested after 3 days / Total number of seeds tested) × 100%.

[0015] Analysis of experimental results: Table 1 shows the germination rates of corn seeds treated with different concentrations of naphthyl ethylaminoacetate and naphthylacetic acid:

[0016] As can be seen from Table 1, compared with water, different concentration gradients of naphthylacetic acid and naphthyl ethylaminoacetate compounds all have a significant promoting effect on the germination of corn seeds. The germination rate increased by 63% after treatment with 10 ppm naphthyl ethylaminoacetate compared with the water treatment. Soaking corn seeds with naphthyl ethylaminoacetate at a low concentration level can achieve a good germination promoting effect.

[0017] 2. Hydroponic Growth Promotion Experiment of Maize After disinfecting maize seeds, place them in a petri dish lined with filter paper. Moisten clean sterile cotton and place it on the filter paper, then add 10 mL of sterile water to keep the seeds moist. Next, place the petri dish in a constant temperature incubator at 28 °C to ensure normal germination of the seeds. After the seeds germinate, select maize plants with the same growth vigor and transplant them into a seedling tray. When the first true leaf begins to unfold, prepare standard solutions of naphthylaminoethyl ester and naphthaleneacetic acid prepared in Example 1 at concentrations of 5 ppm, 10 ppm, and 20 ppm respectively for root irrigation. After 14 days, observe and measure data such as plant height, root length, plant weight, and root weight.

[0018] Table 2 shows the experimental data of treating maize with different solution concentrations:

[0019] The results can be seen from Table 1: From the comparative analysis of the data of plant height, root length, fresh root weight, dry root weight, and plant weight with the control, generally speaking, the effect of 5 ppm naphthylaminoethyl ester is better; compared with the data of the control group of clear water, when applying 5 ppm naphthaleneacetic acid solution, the fresh root weight increased by 38% and the dry root weight increased by 47.9%; when applying 5 ppm naphthylaminoethyl ester, the fresh root weight increased by 90.6% and the dry root weight increased by 125%.

[0020] Figure 3 It is a comparative diagram of the hydroponic growth promotion of maize for the naphthylaminoethyl ester prepared in Example 1. Among them, A is the hydroponic growth promotion of naphthaleneacetic acid on maize, B is the hydroponic growth promotion of naphthylaminoethyl ester on maize, 1 is the clear water group, 2 - 4 the naphthaleneacetic acid content in the hydroponic culture solution is 5 ppm, 10 ppm, 20 ppm, 5 - 7 the naphthylaminoethyl ester content in the hydroponic culture solution is 5 ppm, 10 ppm, 20 ppm. 5 ppm naphthaleneacetic acid and 5 ppm naphthylaminoethyl ester have obvious growth promotion effects. The root growth of 5 ppm naphthylaminoethyl ester is significantly better than that of the clear water group, and it is superior to 5 ppm naphthaleneacetic acid in terms of fresh root weight and dry root weight, showing excellent performance in increasing the biomass of plants when using low - concentration products.

[0021] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention.

[0022] The above describes the present invention and its implementation manners. Such description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present invention, and the actual application is not limited thereto. In general, if those of ordinary skill in the art are inspired by it and, without departing from the gist of the present invention, design in a non-creative manner similar ways and embodiments to this technical solution, they shall fall within the protection scope of the present invention.

Claims

1. A naphthylethylaminoethyl ester, characterized in that When the naphthylethylaminoethyl ester is used as a plant growth stimulant, the specific use method is at least one of seed soaking, root irrigation, and leaf spraying; the concentration used for seed soaking is 10-40ppm; the concentration used for root irrigation is 5-20ppm; the concentration used for spraying is 20-30ppm, Its structural formula is: .

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