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Suspension mixed cultivation method of Utricularia aurea and Lemna minor

A technology of cucurbita japonica and duckweed is applied in the field of water pollution control, which can solve the problems of non-floating, poor growth, and photosynthesis effects of submerged plants, and achieve the effect of ensuring sustainable utilization and promoting growth.

Inactive Publication Date: 2019-07-12
中铁四川生态城投资有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Submerged plants have strict requirements on the transparency of water quality in the process of purifying water bodies. When the depth of the water body is too large, the transparency is reduced or the water body is shallow, but the organic suspended matter and inorganic suspended matter are too large, its photosynthesis will be seriously affected. Cause poor growth or even death, thereby affecting the purification effect; in addition, submerged plants usually need to cultivate substrates to fix the roots of the plants, so that the submerged plants will not float and be washed away by the water flow, and at the same time provide part of the nutrients needed for plant growth , the planting process is complex
Floating plants can effectively avoid the above problems, but their rapid growth and strong invasiveness bring new problems

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] This embodiment provides a method for mass and rapid propagation of the endangered species of U. chrysalis, which can effectively promote the sustainable development and utilization of U. chrysalis resources, which includes the following steps:

[0038] Step 1: Disinfect and sterilize the explants; select healthy and strong branches and leaves of Uriella chrysalis as explants, and then disinfect and sterilize the explants.

[0039] Step 2: induction culture; in a sterile environment, inoculate the sterilized explants into sterile MS solid medium for induction culture, and cultivate until the young shoots grow to 1.0-2.0 cm.

[0040] Step 3: Proliferation culture; in a sterile environment, transfer the sprouts to MS liquid culture for multiplication culture, and proliferate and culture until the sterile seedlings grow to 6-10 cm.

[0041] Step 4: seedling hardening and transplanting; the aseptic seedlings are hardened, and transplanted after 1-3 days of hardening.

Embodiment 2

[0043] This embodiment provides a method for mass and rapid propagation of the endangered species of U. chrysalis, which can effectively promote the sustainable development and utilization of U. chrysalis resources, which includes the following steps:

[0044]Step 1: Disinfect and sterilize the explants; select healthy and strong branches and leaves of Uriella chrysalis as explants, first soak them in detergent, wash them with tap water and sterile water in turn, drain them with a volume fraction of 75% Soak in alcohol for 0.5-1min, wash with sterile water, then disinfect with 0.1% mercuric chloride for 5-10min, wash with sterile water, and drain the water.

[0045] Step 2: induction culture; in a sterile environment, inoculate the sterilized explants into sterile MS solid medium to induce culture, at a temperature of 25-28°C and a light intensity of 1800-2000Lux Next, cultivate until the young shoots grow to 1.0-2.0cm. 0.8-1.5 mg / L of 6-benzylpurine, 0.5-1.0 mg / L of naphthal...

Embodiment 3

[0049] This embodiment provides a suspension polyculture method of U. chrysalis and duckweed. In the method, U. chrysalis and duckweed are polycultured, and the two are suspended on the surface of the water body for culture through a mesh culture box with an open top.

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Abstract

The invention discloses a suspension mixed cultivation method of Utricularia aurea and Lemna minor and relates to the technical field of water pollution treatment. Utricularia aurea and Lemna minor are subjected to mixed cultivation in the method herein and are suspended and cultivated on the surface of water through a meshed cultivation box having an opened top. The method herein has the advantages that Utricularia aurea is suspended and cultured on water through the meshed cultivation box, so that influence on photosynthesis of Utricularia aurea due to rising of the water level is avoided; Utricularia aurea and Lemna minor are innovatively subjected to mixed cultivation according to growth features of Utricularia aurea, Lemna minor ensures more suitable growth environment for Utriculariaaurea, and therefore, growth of Utricularia aurea is promoted effectively; Utricularia aurea itself is an endangered plant, and the method herein helps provide a new idea to sustainably develop and utilize Utricularia aurea resources, and to purify water.

Description

technical field [0001] The invention relates to the technical field of water pollution control, in particular to a suspension polyculture method of Uriella chrysalis and duckweed. Background technique [0002] With the intensification of water pollution, people pay more and more attention to high-efficiency and low-consumption water pollution control technology. Aquatic plants, with their unique tissue and ecological functions and easy manual manipulation, are used to purify water pollution and prevent eutrophication. widely used. At present, the aquatic plants used in water purification mainly include two categories: (1) submerged plants, such as bitter grass, weed, and various varieties of the family Aquaphyceae; Turtle and so on. [0003] Submerged plants have strict requirements on the transparency of water quality in the process of purifying water bodies. When the depth of the water body is too large, the transparency is reduced or the water body is shallow, but the o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G31/00A01H4/00C02F3/32
CPCA01G31/00A01H4/008C02F3/32
Inventor 余海洪
Owner 中铁四川生态城投资有限公司
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