A plant growth regulator containing nitro salicylaldehyde and its salt derivatives

Abstract

The present application belongs to the technical field of plant growth regulators, and particularly relates to a plant growth regulator containing nitro-salicylaldehyde and salt derivatives thereof. The application also relates to the use of nitro-salicylaldehyde and salt derivatives thereof as plant growth regulators. The structure of the nitro-salicylaldehyde and salt derivatives thereof is shown in structural formula I. The nitro-salicylaldehyde and salt derivatives thereof have growth regulating effects on various plants such as grain crops, oil crops, vegetables and fruit trees, and have the potential to be developed into broad-spectrum plant growth regulators.

Description

Technical Field

[0001] This invention belongs to the field of plant growth regulator technology, specifically relating to a plant growth regulator containing nitrosalicylic aldehyde and its salt derivatives. Background Technology

[0002] Plant hormones play a crucial role in plant growth, regulating the entire growth and development process from seed germination, root formation, new leaf growth to flowering, fruiting, senescence, abscission, and dormancy. Plant growth regulators are chemical substances that, when applied exogenously, regulate plant growth, development, and physiological functions, obtained through artificial synthesis or biological extraction based on the structure, function, or mechanism of action of plant hormones. Currently, plant growth regulators are widely used in the production and storage of food crops, cash crops, vegetables, oil crops, and fruit trees, covering multiple application areas such as rooting, germination, growth promotion, flowering, fruit setting, fruit expansion, ripening, coloring, yield increase, quality improvement, preservation, dwarfing, tillering (branching) promotion, and cotton boll suppression, gradually developing into an important management measure in modern agriculture.

[0003] Nitrosalicylic aldehyde is an intermediate in the organic synthesis of pharmaceuticals, pesticides, fragrances, and dyes. It possesses antibacterial, anti-inflammatory, and anticancer properties and can also be used in fluorescent and photochromic materials. Common nitrosalicylic aldehydes include 3-nitrosalicylic aldehyde and 5-nitrosalicylic aldehyde. Existing technologies disclose methods for preparing these two nitrosalicylic aldehydes, such as: application number CN200710020299.7, which discloses a method for preparing 3-nitrosalicylic aldehyde; and application number CN201610442369.7, which discloses a method for preparing 5-nitrosalicylic aldehyde.

[0004] Through indoor bioassays and field efficacy trials, the inventors discovered that nitrosalicylic acid aldehyde has growth-regulating effects on a variety of plants, including grain crops, oil crops, vegetables, and fruit trees, and has the potential to be developed into a broad-spectrum plant growth regulator. Currently, there are no reports on the growth-regulating activity of nitrosalicylic acid aldehyde.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of the invention and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention

[0006] The purpose of this invention is to provide a plant growth regulator containing nitrosalicylic aldehyde and its salt derivatives.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] Use of a nitro-salicylaldehyde and its salt derivatives as plant growth regulators, the structure of the nitro-salicylaldehyde and its salt derivatives is shown in structural formula I:

[0009]

[0010] Wherein, R1 and R2 are -H or -NO2; R3 is -H or a salt derivative.

[0011] More specifically, R3 is -Na or -K.

[0012] A second object of the present application is to provide a plant growth regulator comprising effective component I, the effective component I being the nitro-salicylaldehyde, or the salt derivative of the nitro-salicylaldehyde, or a mixture of the nitro-salicylaldehyde and its salt derivatives.

[0013] More specifically, the effective component I is selected from one or more of 5-nitro-salicylaldehyde, 3-nitro-salicylaldehyde, 5-nitro-salicylaldehyde sodium salt, 3-nitro-salicylaldehyde sodium salt, 5-nitro-salicylaldehyde potassium salt and 3-nitro-salicylaldehyde potassium salt.

[0014] A third object of the present application is to provide a plant growth regulator, which is mixed from the effective component I and effective component II, the effective component II being selected from one or more of brassinolide, sodium nitrophenolate, gibberellin, naphthalene acetic acid, indole acetic acid, amino acid ester, triacontanol, benzyl amino purine, methopromine and paclobutrazol.

[0015] More specifically, in the plant growth regulator, the mass of the effective component I and effective component II and the total mass of the plant growth regulator are 0.1-95%.

[0016] A fourth object of the present application is to provide use of the nitro-salicylaldehyde and its salt derivatives in regulating plant growth or increasing yield.

[0017] More specifically, the plants are common crops, vegetables and fruit trees such as wheat, rice, peanut, sweet potato, Chinese cabbage, radish, cucumber, tomato, pepper, tobacco, watermelon, grape and apple.

[0018] Compared with the prior art, the present application has the following beneficial effects:

[0019] The nitro-salicylaldehyde and its salt derivatives of the present application have growth regulating effects on various plants such as grain crops, oil crops, vegetables and fruit trees, and have the potential to be developed into broad-spectrum plant growth regulators. The nitro-salicylaldehyde and its salt derivatives of the present application can be used alone or in combination. DETAILED DESCRIPTION

[0020] The technical solutions of the patent application will be described below in a clear and complete manner. Obviously, the described embodiments are part of the embodiments of the patent application, rather than all the embodiments. Based on the embodiments in the patent application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the patent application.

[0021] Example 1

[0022] Use of a nitro salicylaldehyde and salt derivatives thereof as a plant growth regulator, the nitro salicylaldehyde and salt derivatives thereof being specifically as shown in Table 1 A1-A6, and the structure being as shown in structural formula I:

[0023]

[0024] Table 1 Structural formula and name of nitro salicylaldehyde and salt compounds

[0025] Compound Code [R1] [R2] [R3] Chinese Name A1 -H -NO2 -H 5-nitrosalicylaldehyde A2 -NO2 -H -H 3-nitrosalicylaldehyde A3 -H -NO2 -Na 5-nitrosalicylaldehyde sodium salt A4 -H -NO2 -K 5-nitrosalicylaldehyde potassium salt A5 -NO2 -H -Na 3-nitrosalicylaldehyde sodium salt A6 -NO2 -H -K 3-nitrosalicylaldehyde potassium salt

[0026] Laboratory activity test

[0027] 1. Test crop

[0028] Chinese cabbage (Yuyuan Xinchun No. 1, bred by the Vegetable and Horticultural Institute of Henan Academy of Agricultural Sciences).

[0029] 2. Test compounds

[0030] 5-nitrosalicylaldehyde (purity: 97%), 3-nitrosalicylaldehyde (purity: 98%).

[0031] 3. Test method

[0032] Field soil was taken, sieved, and dried in the shade. The soil was mixed with peat soil and vermiculite at a mass ratio of 5:1:2, and then quantitatively loaded into the seedling pots. Chinese cabbage seeds were sown in the seedling pots at 6 seeds per pot, watered, and cultured at 25-28°C to the 2-leaf stage. The seedlings were thinned, and 3 Chinese cabbage seedlings with basically the same size and growth potential were left in each pot.

[0033] The test compounds were first dissolved in a small amount of DMF, and then diluted with 0.1% Tween 80 water to the required concentration. Spraying was performed at a spray volume of 30 kg / acre, and the second spraying was performed after 7 days. Four parallel replicates were set for each treatment, and water spraying was used as a blank control CK. The fresh weight of Chinese cabbage was measured 14 days after the second spraying, and the growth promotion rate was calculated.

[0034] 4. Test results

[0035] See Table 2.

[0036] Table 2: Determination results of nitro-salicylaldehyde compounds on the growth promotion of Chinese cabbage

[0037]

[0038] As shown in Table 2, 5-nitro-salicylaldehyde and 3-nitro-salicylaldehyde have obvious growth promotion effect on Chinese cabbage, and the growth promotion rate reaches the maximum value of 34.38% and 30.96% respectively at the concentration of 10 mg / kg. It is indicated that the nitro-salicylaldehyde compounds of the present application have growth regulation effect on plant growth, and have the potential to be developed into broad-spectrum plant growth regulators.

[0039] Formulation 1 : 1.6% compound nitro-salicylaldehyde emulsifiable concentrate

[0040] Prepared by weight percentage from the following raw materials: 5-nitro-salicylaldehyde 1.2%, 3-nitro-salicylaldehyde 0.4%, Tween 80 3%, agricultural emulsion 600 10%, ethanol 20%, mixed benzene supplement 100%.

[0041] Formulation 2 : 10% 3-nitro-salicylaldehyde sodium salt aqueous agent

[0042] Prepared by weight percentage from the following raw materials: 3-nitro-salicylaldehyde sodium salt 10%, ethanolamine 5%, polyethylene glycol 10%, urea 5%, dodecyl phenol polyoxyethylene ether 1%, deionized water supplement 100%.

[0043] Formulation 3 : 3% 5-nitro-salicylaldehyde sodium salt aqueous agent

[0044] Prepared by weight percentage from the following raw materials: 5-nitro-salicylaldehyde sodium salt 3%, glycerol 10%, urea 5%, dodecyl phenol polyoxyethylene ether 1%, deionized water supplement 100%.

[0045] Formulation 4 : 30% 3-nitro-salicylaldehyde potassium salt soluble powder

[0046] Prepared by weight percentage from the following raw materials: 3-nitro-salicylaldehyde potassium salt 30%, sucrose 10%, sodium dodecyl naphthalene sulfonate 3%, ammonium sulfate supplement 100%.

[0047] Formulation 5 : 60% 5-nitro-salicylaldehyde potassium salt soluble powder

[0048] Prepared by weight percentage from the following raw materials: 5-nitro-salicylaldehyde potassium salt 60%, PPG-6000 5%, potassium carbonate 10%, potassium pyrophosphate supplement 100%.

[0049] Field test

[0050] The tested crops, the tested agents, the testing method and the results are shown in Table 3.

[0051] Table 3 Regulation effect of the plant growth regulator of the present application on plant growth

[0052]

[0053] From Table 3, it can be seen that the plant growth regulator of the present application can improve the yield of common crops, vegetables and fruits compared with the water control, and has the potential to be developed into a broad-spectrum plant growth regulator.

[0054] Finally, it needs to be supplemented that when spraying the tested agents on the corresponding tested crops, the corresponding tested crops are sprayed with water as a control in order to compare the yield at the harvest period.

[0055] The foregoing description of specific exemplary embodiments of the present application is intended to be illustrative only and is not intended to be limiting as to the scope of the present application. Many changes and modifications can be suggested to those skilled in the art, and it is intended that the scope of the present application be limited only by the appended claims and their equivalents. The exemplary embodiments are chosen and described in order to explain the principles of the present application and their practical application to thereby enable others skilled in the art to best utilize the present application and various embodiments with various modifications as are suited to the particular use contemplated. It is intended that the scope of the present application be defined by the following claims and their equivalents.

Claims

1. The use of nitrosalicylic acid aldehyde and its salt derivatives as plant growth regulators in improving plant yield, characterized in that, The nitrosalicylic aldehyde and its salt derivatives are one or more of 5-nitrosalicylic aldehyde, 3-nitrosalicylic aldehyde, sodium 5-nitrosalicylic aldehyde, sodium 3-nitrosalicylic aldehyde, potassium 5-nitrosalicylic aldehyde, and potassium 3-nitrosalicylic aldehyde.

2. The use according to claim 1, characterized in that, The plants mentioned are wheat, rice, peanuts, sweet potatoes, cabbage, radishes, cucumbers, tomatoes, peppers, tobacco, watermelons, grapes, and apples.

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