Low-temperature-resistant protective agent product for wheat and use method thereof

A protective agent and anti-low temperature technology, which is applied in the direction of botany equipment and methods, applications, biocides, etc., can solve the problems of low feasibility and high cost, and achieve the purpose of reducing the damage of cell membrane lipid peroxidation, increasing production, The effect of prolonging the photosynthetic time

Inactive Publication Date: 2022-01-18
NANJING AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, our team has done a lot of work on the analysis of the mechanism of low temperature training to induce cold resistance in wheat, but the cost of low temperature training in the field is relatively high, and the feasibility of using it is not strong

Method used

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  • Low-temperature-resistant protective agent product for wheat and use method thereof
  • Low-temperature-resistant protective agent product for wheat and use method thereof
  • Low-temperature-resistant protective agent product for wheat and use method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] This embodiment provides an anti-low temperature protective agent, which is based on a total weight of 1 kg and consists of the following components:

[0032] 0.4ml, that is, 0.42g earthworm active enzyme plant polypeptide liquid,

[0033] 95mg chitosan,

[0034] 6g urea,

[0035] 1.5g potassium dihydrogen phosphate,

[0036] 1.8g betaine,

[0037] The balance is the weakly acidic solvent obtained after thinning with white vinegar.

[0038] The steps for preparing the anti-cryoprotectant are:

[0039] In the first step, add 0.4ml earthworm active enzyme plant polypeptide liquid, 8g urea, 4g potassium dihydrogen phosphate, and 2g betaine to 800ml distilled water to fully dissolve it.

[0040] In the second step, in the first mixed solution obtained in the first step, add a solution containing 100 mg chitosan dissolved by 20 ml of white vinegar;

[0041] In the third step, water is added to the second mixed solution obtained in the second step and the volume is adju...

Embodiment 2

[0049] This embodiment provides the second anti-low temperature protective agent, which is based on a total weight of 1 kg and consists of the following components:

[0050] 0.5ml, that is, 0.52g earthworm active enzyme plant polypeptide liquid,

[0051] 105mg chitosan,

[0052] 7g urea,

[0053] 2.5g potassium dihydrogen phosphate,

[0054] 2.2g betaine,

[0055] The remainder is the weakly acidic solvent obtained after white vinegar is thinned out, and nonionic surfactants such as Tween (Tween) can generally be added in the weakly acidic solvent accounting for about 0.1% of the total weight percentage of the cryoprotectant. As a non-ionic surfactant, Tween has strong hydrophilicity and can be used as an oil-in-water (O / W) emulsifier to disperse other substances in the solution evenly. It can also be used as a solubilizer to increase the concentration of various drugs. The solubility in the solution enables the drug to play a better role, and at the same time, it can also...

Embodiment 3

[0066] The present embodiment provides a kind of compound agent, and before it is sprayed to plant blade, the compound agent of the following components needs to be diluted to 1kg by water:

[0067] 0.4ml earthworm active enzyme plant polypeptide liquid,

[0068] 100mg chitosan dissolved in 20ml white vinegar,

[0069] 8g urea,

[0070] 2 g potassium dihydrogen phosphate,

[0071] 2g betaine,

[0072] 1g of Tween.

[0073] Carry out following test for the protective effect of the anti-low temperature protection agent obtained by the dilution of above-mentioned compound agent to the low temperature stress of wheat:

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Abstract

The invention provides a low-temperature-resistant protective agent product for wheat and a use method of the low-temperature-resistant protective agent product. According to the invention, betaine is compounded with earthworm active enzyme plant polypeptide liquid, urea, monopotassium phosphate and chitosan to prepare the efficient low-temperature-resistant protective agent; the chlorophyll synthesis of wheat leaves can be remarkably improved by spraying the low-temperature-resistant protective agent on leaf surfaces, the photosynthetic capacity of the leaves is improved, the photosynthetic time of the leaves is prolonged, and the activity of antioxidant enzymes and the accumulation of osmotic regulation substances are enhanced; and thus, the cold resistance of plants is enhanced, and the damage of low-temperature stress to wheat plants is relieved. The pH value of the low-temperature-resistant protective agent provided by the invention is 5.5-6, and the low-temperature-resistant protective agent can effectively reduce the pungent smell of a preparation and lower the requirements of the preparation on transportation and storage conditions.

Description

technical field [0001] The present application relates to the field of plant growth regulators, in particular to a wheat anti-low temperature protectant product and its application method. Background technique [0002] Although wheat is a cool-loving crop, when the temperature is lower than the low temperature it can withstand in different growth stages, it will cause low-temperature freezing injury. For example, cold waves often occur near the jointing stage of wheat, resulting in freezing of tissue cells during spikelet differentiation, hindering spikelet differentiation during the tetrad period, and the upper and lower spikelets of wheat ears are not firm, and wheat yield is reduced; freezing damage in late spring will cause wheat hollow, The white ears and spikelets were sterile; in addition, the frost damage caused damage to the new tillers at the base of the wheat stem, resulting in a double decrease in the number of spikes per unit area and the number of grains per sp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N63/10A01N59/26A01N43/16A01N47/28A01N37/44A01P21/00
CPCA01N63/10A01N59/26A01N43/16A01N47/28A01N37/44
Inventor 王笑梁志妍蔡剑周琴黄梅姜东
Owner NANJING AGRICULTURAL UNIVERSITY
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