Duckweed biological source growth promoter and preparation method thereof and application

A growth promoter and biological source technology, applied in plant growth regulators, plant growth regulators, botanical equipment and methods, etc., can solve the problems of lack of specificity of drug efficacy, eutrophication of water body, residual toxicity, etc. , to achieve the effect of short preparation cycle, promoting growth, and good growth-promoting effect

Inactive Publication Date: 2015-11-11
SHANGHAI OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the disadvantage of the traditional method is that it is easy to cause eutrophication of the water body, especially in the case of field cultivation; the main deficiency of the new cultivation method with plant growth regulators is that the growth regulators currently used are basically chemical preparations, which have the advantages of Residual toxicity, lack of specificity of drug efficacy, and long-term single use have the risk of resistance. It is urgent to develop a biogenic growth promoter that can quickly and effectively increase the growth rate of duckweed.

Method used

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  • Duckweed biological source growth promoter and preparation method thereof and application
  • Duckweed biological source growth promoter and preparation method thereof and application
  • Duckweed biological source growth promoter and preparation method thereof and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The material used in this example is duckweed, which is a common species in lakes and river waters in my country, and the number of duckweed starting plants in the culture container is 60 (30).

[0025] (1) Determination method of duckweed biomass (fresh weight): The duckweed was removed from the culture water body with a fishing net, washed three times with distilled water, and then spread on filter paper for 3 minutes and weighed.

[0026] (2) Preparation method of duckweed biological source growth promoter: the Chinese herbal medicine Portulaca oleracea is collected, dried, pulverized, sieved, put into a customized sieve bag (200 mesh), placed in a beaker, and pressed 1 Add distilled water at a solid-to-liquid ratio of :20, extract by ultrasonic for 1h, centrifuge (4000r / min) for 10min, take the supernatant and concentrate it to 250ml, to obtain the extract of Chinese herbal medicine Portulaca oleracea with a concentration of 0.1gDW / ml, which is the biological source ...

Embodiment 2

[0031] The material used in this example is Duckweed, which is a common species in lakes and river waters in my country, and the number of Duckweed starting plants in the culture container is 36 (18 strains).

[0032] (1) Determination method of duckweed biomass (fresh weight): same as Example 1.

[0033] (2) Preparation method of duckweed biological source growth promoter: the Chinese herbal medicine Portulaca oleracea is collected, dried, pulverized, sieved, put into a customized sieve bag (200 mesh), placed in a beaker, and pressed 1 Add distilled water at a solid-to-liquid ratio of :20, ultrasonically extract for 1h, centrifuge (2000r / min) for 15min, take the supernatant and concentrate it to 250ml to obtain a Chinese herbal medicine purslane extract with a concentration of 0.1gDW / ml, which is the duckweed biological source growth promoter.

[0034] (3) The use method of duckweed biological source growth promoter: the duckweed culture container used is a beaker with a vol...

Embodiment 3

[0038]The material used in this example is Duckweed, which is a common species in lakes and river waters in my country, and the number of Duckweed starting plants in the culture container is 36 (18 strains).

[0039] (1) Determination method of duckweed biomass (fresh weight): same as Example 1.

[0040] (2) Preparation method of duckweed biological source growth promoter: the Chinese herbal medicine Portulaca oleracea is collected, dried, pulverized, sieved, put into a customized sieve bag (200 mesh), placed in a beaker, and pressed 1 Add distilled water at a solid-to-liquid ratio of :30, ultrasonically extract for 1.5h, centrifuge (3000r / min) for 10min, take the supernatant and concentrate to obtain a Chinese herbal purslane extract with a concentration of 0.1gDW / ml, which is the biological source of duckweed growth. accelerator.

[0041] (3) The use method of duckweed biological source growth promoter: the duckweed culture container used is a beaker with a volume of 1000ml...

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Abstract

The invention belongs to the field of aquatic energy culture and particularly relates to a duckweed biological source growth promoter and a preparation method thereof and application. The preparation method comprises washing, drying, smashing and screening portulaca oleracea, placing the portulaca oleracea in a bolting cloth bag, adding distilled water, performing ultrasonic extraction for 0.5-1.5 h, performing centrifugation for 10-15 min, and taking and concentrating supernatant. When in application, the growth promoter only needs to be scattered to the duckweed culture water body, and the using amount ratio of the effective ingredient portulaca oleracea in the promoter and the duckweed culture water body is (1-3g):(1L). The duckweed biological source growth promoter can quickly and effectively improve the growth velocity of duckweed, the duckweed biomass weight gain rate can be improved by over 89% after the application, and the growth promotion effect is good; besides, no secondary pollution is caused to the water body, and the duckweed biological source growth promoter is green, safe and environmentally friendly. A using method is not subjected to the limitation of the water body conditions, and the duckweed biological source growth promoter can quickly promote the growth of duckweed in the eutrophic water body or the oligotrophic water body and is good in adaptability.

Description

technical field [0001] The invention belongs to the field of aquatic energy culture, and particularly relates to a duckweed biological source growth promoter and a preparation method and application thereof. Background technique [0002] Duckweed is the whole grass of Duckweed or Chingweed, which is a common floating plant on water surface in all provinces of our country. Duckweed has the potential to remove mineral pollutants from sewage. It is a major aquatic plant for water purification, and its biomass mainly contains protein, carbohydrates, lipids, crude fibers and minerals. It is currently mainly used in animal feed. , biofuel, sewage treatment, etc., has a very wide range of application prospects. For example, researchers use duckweed as a model plant to study the basic growth and development, biochemistry, photosynthesis and toxicity of harmful substances. Geneticists clone duckweed-related genes and improve duckweed to produce cheap medicines. Environmental scien...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N65/08A01P21/00
Inventor 邵留宋盈颖张饮江李娟英赵圆
Owner SHANGHAI OCEAN UNIV
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