Ex-situ conservation cultivation method of water shield

A cultivation method and a technology for Ulva, which are applied in the field of ex-situ protection and cultivation of Ulva, can solve the problems of low survival rate of ex-situ cultivation of Ulva, and achieve the effects of protecting biodiversity, improving water quality and increasing the survival rate.

Active Publication Date: 2013-04-17
JIANGHAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem of the low survival rate of the ex situ cultivation of water shield, ...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] The embodiment of the present invention provides a method for ex situ protection and cultivation of water shield, the method comprising: replanting the winter bud stems of water shield in Lichuan area of ​​Hubei Province to the underwater substrate in Wuhan area for cultivation, and keeping the water flow rate at 1100mL / min, set a water inlet at the upper part of one end of the artificial pool with a depth of about 40-50cm, about 30-35cm from the bottom of the pool, and set a water outlet at the opposite end of the artificial pool, and the height of the water outlet is the same as that of the water inlet It is flat enough to allow water to flow continuously through the pool, and in this way maintain a flow rate of 1100mL / min.

[0017] Specifically, the pH of water is 7.5, and the redox potential of water is positive.

[0018] Specifically, the water temperature is 16°C.

[0019] Specifically, the stem section of the winter bud is 6 cm long and contains 2-3 nodes, and t...

Embodiment 2

[0024] The embodiment of the present invention provides a method for ex situ protection and cultivation of water shield, the method comprising: replanting the winter bud stems of water shield in Lichuan area of ​​Hubei Province to the underwater substrate in Wuhan area for cultivation, and keeping the water flow rate at 1500mL / min, set a water inlet at the upper part of one end of the artificial pool with a depth of about 50cm, about 30-35cm from the bottom of the pool, and set a water outlet at the opposite end of the artificial pool, and the height of the water outlet is equal to the water inlet, Ability to allow water to flow continuously through the pool in such a way as to maintain a water flow rate of 1500mL / min.

[0025] Specifically, the pH of water is 7.8, and the redox potential of water is positive.

[0026] Specifically, the water temperature is 28°C.

[0027] Specifically, the winter bud stem segment is 5 cm long and contains 2-3 nodes, and the diameter of the wi...

Embodiment 3

[0032] The embodiment of the present invention provides a method for ex situ protection and cultivation of water shield, the method comprising: replanting the winter bud stems of water shield in Lichuan area of ​​Hubei Province to the underwater substrate in Wuhan area for cultivation, and keeping the water flow rate at 1900mL / min, set a water inlet at the upper part of one end of the artificial pool with a depth of about 40-50cm, about 30-35cm from the bottom of the pool, and set a water outlet at the opposite end of the artificial pool, and the height of the water outlet is the same as that of the water inlet It is flat enough to allow water to flow continuously through the pool, and in this way maintain a flow rate of 1900mL / min.

[0033] Specifically, the pH of water is 7.7, and the redox potential of water is positive.

[0034] Specifically, the water temperature is 20°C.

[0035] Specifically, the stem section of the winter bud is 5.5 cm long and contains 2-3 nodes, and...

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Abstract

The invention discloses an ex-situ conservation cultivation method of water shield, belonging to the cultivation field of plants. The method comprises the following steps: moving the winter bud stem of water shield into an underwater substrate at a water shield destination area for cultivation; and keeping the flow rate of water to be 1100-1900 mL/min. According to the ex-situ conservation cultivation method of water shield provided by the invention, the amount of spirogyra accreting with water shield is controlled by controlling the water flow rate in the growing environment of water shield; since the water shield is in an inferior position in the competition of water shield and spirogyra, a large amount of spirogyra is propagated so that the survival rate of water shield is low; the water flow rate in the growing environment of water shield is controlled so that the water quality is improved, more importantly, the amount of spirogyra is reduced by increasing the water flow rate, the survival rate of water shield ex-situ conservation is increased, and the ex-situ conservation cultivation of water shield is realized.

Description

technical field [0001] The invention relates to the field of plant cultivation, in particular to a method for ex situ protection and cultivation of water shield. Background technique [0002] Water shield (Brasenia schreberi), also known as horseshoe grass, lake vegetables, etc., is an endangered wild plant under first-class protection in my country, an important aquatic economic crop and an ornamental plant. Because water shield contains chemical components such as acidic polysaccharides, proteins, amino acids, vitamins, histamines and trace elements, it has biological activities such as anti-tumor, anti-ulcer, anti-bacterial, anti-inflammatory and immune-promoting. The main production areas of water shield are Taihu Lake in Jiangsu, West Lake in Zhejiang, Luoji Mountain in Sichuan and Lichuan in Hubei. For a long time, especially in recent decades, the distribution range and natural population of Brasenia in my country have decreased rapidly, and it is on the verge of ext...

Claims

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Application Information

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IPC IPC(8): A01G31/00
Inventor 董元火
Owner JIANGHAN UNIVERSITY
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