Method for improving propagation survival rate of hydrilla verticillata

A black algae and fast technology, applied in the biological field, can solve the problems of low survival rate of cutting propagation stems, low germination rate, difficult to popularize, etc., and achieve the effect of improving water transparency, strong adaptability and improving water quality.

Inactive Publication Date: 2012-05-16
南京中科水治理股份有限公司
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AI Technical Summary

Problems solved by technology

[0005] The reproduction of black algae mainly depends on winter buds. It is difficult to collect winter buds, and the germination rate is low. Therefore, it is difficult to promote the use of winter buds for black algae propagation.
The cost of using cutting propagation technology to propagate black algae is low and the process is simple, but the survival rate of cutting propagation stems is low

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0016] A method for propagating black algae, applied in an artificial landscape lake ecosystem construction project in Chengdu, the method is implemented according to the following steps:

[0017] 1. Collect strong, pest-free hydrilla plants from rivers. After collection, wash with clean water 3 times, and clean the surface attachments.

[0018] 2. Cut the Hydrilla plant into 10-13 cm long, remove the less active parts, and then place the explants neatly in plastic pots.

[0019] 3. Preparation of explant treatment agent: add 5 mg of indole butyric acid (IBA) per liter of distilled water, and mix well.

[0020] 4. Put the cut explant into the explant treatment agent and soak for 0.5 hour, then take it out and rinse it with tap water, and then cut it into the seedling field.

[0021] 5. Keep the temperature in the nursery field at 25°C to 35°C, the water depth is 40 cm, keep the water body clear, light for 12 hours a day, the rooting rate within 7 days is 98%, and the surviva...

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Abstract

The invention discloses a cutting propagation technique for hydrilla verticillata, comprising the following steps: selecting and processing explants; preparing hormone medicine, processing explants and culturing explants in fields. When the explants not processed by hormones is cultured for one week, the rooting rate is 67% and the survival rate is 46%; the rooting rate of the explants processed by the hormones is 95% and the survival rate is 90%; and the survival rate is greatly improved. The hydrilla verticillata is propagated in a large scale by the method; the method for improving propagation survival rate of hydrilla verticillata can solve the problem of low propagation speed of hydrilla verticillata under natural conditions and meet the requirement on hydrilla verticillata seedlingswhen recovering aquatic vegetation and water eutrophication management.

Description

[0001] Field [0002] The invention belongs to the field of biological technology, and in particular relates to a method for propagating submerged plant black algae. Background technique [0003] The water quality of our country's rivers and lakes has seriously declined and the pollution is serious. Submerged plants' biomass has plummeted, which has brought great damage to the ecological environment of lakes and rivers. Planting submerged plants is a very effective way to restore the ecological environment of lakes and rivers. [0004] Hydrilla verticillata (L.f.) royle is a submerged herbaceous plant belonging to the genus Hydrilla verticillata of the family Hydrocharitaceae. It is widely distributed throughout the country, has strong adaptability, and grows rapidly when the temperature is suitable. Black algae grows well in water depths above 3 meters, and is a pioneer plant species for aquatic vegetation restoration and water eutrophication control. In addition, black al...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G33/00A01G7/06
Inventor 柴夏刘平平史加达呙明杰刘从玉万陆军陈小峰谢超
Owner 南京中科水治理股份有限公司
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