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Composite type antitranspirant, its preparation method and application

An anti-transpiration agent and composite technology, applied in the field of anti-transpiration preparations, can solve the problems of affecting photosynthesis, poor water solubility, environmental pollution, etc., and achieve the effects of low cost, inhibiting stomatal opening, and improving survival time.

Inactive Publication Date: 2012-08-08
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned types of anti-transpiration agents have been widely used in production practice, but at the same time, a series of problems have been exposed: such as excessive toxicity, pollution to the environment (such as: mercury benzene acetate), high cost (ABA), poor water solubility, adhesion Low (eg: fulvic acid) affect photosynthesis (thin film type), etc.

Method used

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  • Composite type antitranspirant, its preparation method and application
  • Composite type antitranspirant, its preparation method and application
  • Composite type antitranspirant, its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] 1. Preparation of a single film-forming agent:

[0028] Prepare the film-forming agent with distilled water, the formula is: 2g / L sodium alginate, 2g / L CaCl 2 , 6g / L glucose;

[0029] 2. Preparation of composite anti-transpiration agent:

[0030] (1) Preparation of Bacteria A: Active dry yeast powder, at a ratio of 5g / L, was activated in normal saline at a temperature of 30°C for 30-60 minutes, then added 2g / L sodium alginate, and stirred evenly to prepare Bactericidal agent A;

[0031] (2) Preparation of film-forming agent B: prepare film-forming agent B with distilled water, the formula is: 2g / L CaCl 2 , 6g / L glucose;

[0032] (3) Preparation of compound anti-transpiration agent: Mix bacterial agent A and film-forming agent B when using, spray bacterial agent A on the surface of plant leaves first, and then spray film-forming agent B on the surface of plant leaves to form Composite anti-transpiration agent coated with film-forming agent.

[0033] 3. Processing m...

Embodiment 2

[0037] 1. Preparation of single yeast agent:

[0038]With reference to the method provided in Example 2 of the published invention patent "Preparation Method of Plant Anti-Transpiration Based on Saccharomyces cerevisiae" (CN100519734), a single yeast agent was prepared. details as follows:

[0039] (1) Preparation of bacterial agent a

[0040] Saccharomyces cerevisiae strains (the strains are from the China General Microorganism Culture Collection and Management Center, collection number CGMCC2.1) were inoculated into the sterilized culture medium, and cultured on a shaker under the conditions of 28°C and 150 rpm. 24 hours. The culture was then inactivated at 121°C for 90 minutes at a pressure of 0.12 MPa. After cooling, centrifuge at 6000 rpm for 40 minutes, remove the supernatant, dehydrate the precipitate with absolute ethanol to obtain bacterial agent a, and freeze it at -20°C.

[0041] (2) preparation of adjuvant b

[0042] Prepare adjuvant b with sterile water, the ...

Embodiment 3

[0057] 1. Preparation of compound anti-transpiration agent

[0058] 1) Preparation of bacterial agent A:

[0059] Activate the active dry yeast powder at a ratio of 5g / L in physiological saline at a temperature of 30°C for 30-60 minutes, then add 2g / L sodium alginate, and stir evenly to prepare bacterial agent A;

[0060] 2) Preparation of film-forming agent B:

[0061] Prepare film-forming agent B with distilled water, the formula is: 2g / L CaCl 2 , 6g / L glucose;

[0062] 3) Preparation of composite anti-transpiration agent:

[0063] Spray the bacterial agent A on the surface of the plant leaves first, and then spray the film-forming agent B on the surface of the plant leaves to form a composite anti-transpiration agent in which the bacterial agent is wrapped by the film-forming agent.

[0064] 2. Approach

[0065] Spray the compound anti-transpiration agent evenly on the surface of faba bean leaves, measure the gas exchange data with CI-340 photosynthetic instrument (C...

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Abstract

The invention provides a composite type antitranspirant, which is composed of active dry yeast powder, sodium alginate, calcium chloride, glucose, sodium chloride and water. The preparation method comprises: first activating active dry yeast powder, then adding sodium alginate, and mixing them uniformly so as to obtain a microbial inoculum A, then preparing a film-forming agent B with CaCl2 and glucose, spraying the microbial inoculum A on surfaces of plant leaves, and then spraying isometric film-forming agent B on the surfaces of the plant leaves, thus forming the composite type antitranspirant, with the microbial inoculum coated by the film-forming agent. According to the invention, while retaining the characteristics of film-forming antitranspirants, yeast activity is also maintained. The antitranspirant of the invention can effectively restrain stomatal aperture, reduce plant transpiration, and simultaneously provides a microenvironment beneficial to yeast survival so as to prolong action time and improve water conservation effect. With the advantages of safety and environmental protection, low preparation cost, suitability for large scale production, wide applicability, substantial antitranspiration effect, long effective time and the like, the composite type antitranspirant provided in the invention can be applied in inhibiting transpiration of agricultural and forestal plants in arid and semi-arid areas.

Description

technical field [0001] The invention belongs to the field of anti-transpiration preparations, and relates to a compound plant anti-transpiration agent based on yeast and film-forming substances and a preparation method thereof. Background technique [0002] With the impact of global climate change and human activities, water resources have gradually become one of the main factors restricting economic and social development. In my country, agriculture, as the basic industry of the national economy, has always been a major user of water. However, due to the uneven temporal and spatial distribution of water resources and poor basic water conservancy facilities, the water utilization rate of agricultural irrigation is only about 40%, which is much lower than that of the United States, Israel and other Western developed countries. Due to severe water shortages, the annual output is about 5 billion kilograms. The stomata on plant leaves are the main channel through which plants l...

Claims

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Application Information

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IPC IPC(8): A01N63/04A01P21/00A01G7/06
Inventor 王根轩沈仲佶欧晓彬
Owner ZHEJIANG UNIV
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