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Method of improving salt resistance of bluegrass by using exogenous proline

A technology of exogenous proline and proline, which is applied in the field of improving the salt resistance of bluegrass, can solve the problems of general salt resistance effect, long treatment cycle, complicated process, etc. simple effect

Active Publication Date: 2015-04-08
LIAONING UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The formulation of the treatment method consists of sodium chloride, Na 2 SO 4 , naphthalene acetic acid and other chemical components, its disadvantages are that many chemical substances are used, the cost is high and the pollution is serious; the process is complex and the treatment period is long; the salt resistance effect is general

Method used

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  • Method of improving salt resistance of bluegrass by using exogenous proline
  • Method of improving salt resistance of bluegrass by using exogenous proline
  • Method of improving salt resistance of bluegrass by using exogenous proline

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment 1 Concentration selection test

[0022] Adding 100 mmol / L NaCl to stress Poa annua, the growth of Poa annua was severely inhibited. After 10 days of stress treatment, the aboveground biomass and belowground biomass of Poa annua decreased by 46.0% and 44.8%, respectively, compared with those cultured in normal nutrient solution. Randomly divided into 9 groups.

[0023] Method: Proline solutions with concentrations of 0.02 mmol / L, 0.05 mmol / L, 0.1 mmol / L, 0.20 mmol / L, 0.50 mmol / L, 0.80 mmol / L, 1.60 mmol / L and 3.20 mmol / L were prepared respectively (Pro) solution, pour the solution into the sprayer for foliar application; spray 2 times a day for 3 days. The result is as Figure 1-Figure 4 .

[0024] Salt stress can inhibit the growth of most plants to varying degrees. The results of this experiment also showed that 100 mmol / L NaCl stress treatment significantly inhibited the growth of Poa annua. Adopt the method of the present invention, from Figure 1-F...

Embodiment 2

[0027] Embodiment 2 The selection of spraying material

[0028] Adding 100 mmol / L NaCl to stress Poa annua, the growth of Poa annua was severely inhibited. After 10 days of stress treatment, the aboveground biomass and belowground biomass of Poa annua decreased by 46.0% and 44.8%, respectively, compared with those cultured in normal nutrient solution. Randomly divided into 4 groups.

[0029] Method: Proline solution (Pro) solution, 0.50 mmol / L salicylic acid (SA) solution, 10 mmol / L CaCl 2 Solution, 10μmol / L gibberellin (GA 3 ) solution and injected into the sprayer for foliar spraying; spraying twice a day for 3 days. The result is as Figure 5-Figure 6 .

[0030] From Figure 5 and Figure 6 Visible, SA, GA 3 , CaCl 2 , proline can alleviate the effect of salt stress, SA will be transformed rapidly in plants, and this substance cannot be conducted in the phloem, so it cannot be effectively used; GA 3 The price is relatively high, and it is easy to decompose under ...

Embodiment 3

[0031] Example 3 A method of improving the salt resistance of bluegrass by using proline

[0032] (1) The method is as follows:

[0033] 1) Prepare a proline solution with a concentration of 0.2 mM, inject the solution into the sprayer, and spray on the leaves;

[0034] 2) Select the bluegrass seedling stage for spraying, and the selected date is between May and June;

[0035] 3) Choose the weather without rain and spray for 3 days;

[0036] 4) Spray twice a day, once before 7:00 am and 18:00 pm;

[0037] 5) The amount of spraying is based on the fact that the leaves are wet but not dripping.

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Abstract

The invention relates to a method of improving salt resistance of bluegrass by using exogenous proline. According to the technical scheme, 0.1-0.5mM proline solution is adopted for foliage spraying; spraying is carried out in the seedling stage of the bluegrass, and dates are usually selected between May and June; the rainless weather is selected, and the spraying time is 2-4 days; 2-4 times of spraying are carried out every day, and spraying is usually carried out before 8:00 in the morning and after 5:00 in the evening; the spraying amount meets the standard that foliage is moist and no water drops. When the bluegrass is processed through the method, the salt resistance of the bluegrass can be improved obviously. Besides, the method has the advantages that working procedures are simple, operation is easy, no secondary pollution is produced, and cost is low. Large-area processing is convenient.

Description

technical field [0001] The invention relates to a method for improving the salt resistance of bluegrass, in particular to a method for improving the salt resistance of bluegrass by spraying exogenous proline solution. Background technique [0002] Bluegrass likes light and shade, likes warmth and humidity, has strong cold resistance, poor drought tolerance, good regeneration, is more resistant to trampling and barrenness, and has strong adaptability to soil. It has a wide range of application values ​​in various lawn establishments. . In China, Japan, South Korea, North Korea and the United States, it is widely used in the open green spaces of cities and parks, the establishment of sports field lawns, and as soil and water conservation plants. It is a world-recognized excellent cool-season turfgrass. [0003] Salt damage is one of the main stress factors for plants. Osmotic stress caused by soil salinization has had a great impact on plant growth and yield. Growth inhibit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G7/06
Inventor 李悦张利红陈忠林侯伟徐苏男
Owner LIAONING UNIVERSITY
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