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Land batch-type seedling collecting method for porphyra haitanensis

The invention relates to a batch-type technology for seaweed, which is applied to the field of onshore batch-type seedling harvesting of seaweed, which can solve the problems of low utilization rate of conchospores, large workload, etc., so as to disperse the time to go to sea, improve the utilization rate, and reduce labor intensity. Effect

Inactive Publication Date: 2018-10-30
HUAIHAI INST OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method of collecting seedlings is too concentrated, the workload is heavy, and the utilization rate of conchospores is low, so it is suitable for scattered and small-scale breeding methods

Method used

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  • Land batch-type seedling collecting method for porphyra haitanensis

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment 1, a kind of altar seaweed land batch type method for picking seedlings, comprises the following steps:

[0021] (1) Transfer shells

[0022] Before preparing to pick seedlings, change the water in the altar laver cultivation pond, lower the water temperature to promote the double division of the sporangia branches of the altar laver, and when some sporangia branches are found to be double-divided with a microscope, remove the shell filaments of the altar laver. Move to the tank of the seedling harvesting water truck, the water level in the tank overflows the shells;

[0023] (2) Picking seedlings by waterwheel

[0024] 200m of nets are hung on each water wheel with a diameter of 2m 2 , to ensure that the conchospores are evenly attached to the seedlings, start the water wheel, and the water wheel speed is 6-7rpm, so that the water flow velocity in the tank is maintained at 40-60cm / s, and the ascospores are stimulated to disperse;

[0025] Preferably, the ...

Embodiment 2

[0030] Example 2, the frequency of water change in step (1) is once a day, and the water temperature is appropriately lowered to 28°C to promote the bisegmentation of sporangia branches.

Embodiment 3

[0031] Example 3, in step (2), the water temperature of the waterwheel tank is controlled below 27° C. to promote the release of conchospores.

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Abstract

The invention discloses a land batch-type seedling collecting method for porphyra haitanensis. Firstly, heat exchange is adopted, the water temperature is lowered, spore bag branch dual division is promoted, then, when some spore bag branches are subjected to dual division, porphyra haitanensis shell protonema can be transplanted into a sink of a seedling collecting waterwheel, the water temperature of the waterwheel sink is controlled to be 27 DEG C or below to promote spore diffusion, and a net with the area about 200 m<2> is hung to each waterwheel with the diameter being 2 m so as to ensure uniform shell spore seedling attaching; every morning is the shell spore spreading peak, when the each 10*10 view on a microscopic examination seedling rope reaches 15-30 h or longer, and seedlingsare collected when the requirement for the seedling collecting density is met. According to the seedling collecting method, on the basis of waterwheel type seedling collecting, the characteristic thatporphyra haitanensis shell protonema can release shell spores while being mature is sufficiently utilized, porphyra haitanensis land batch-type seedling collecting is achieved on the shell spores, the shell spore utilization rate is effectively increased, and the seedling raising yield is increased; meanwhile, the net curtain underground time can be scattered, and the labor intensity is lowered.

Description

technical field [0001] The invention relates to a method for collecting seedlings of altar laver, in particular to a method for picking seedlings of altar laver on land in batches. Background technique [0002] The traditional way of raising Porphyra seedlings is to basically cultivate the shell filaments of Porphyra altar to maturity in the nursery room, and a large number of sporangia shoots will appear. The shell filaments will be stimulated in the sea the evening before the seedlings are collected, and a large number of sporangia shoots will be doubled. Seedlings were collected at sea the next day. Put the shell filaments into the cabin and add water. After the conchospores are released in large quantities, put the net curtain into the seedlings, and basically complete the seedlings picking task in 1-2 days. However, this way of picking seedlings is too concentrated, the workload is heavy, and the utilization rate of conchospores is low, so it is suitable for scattered ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G33/02
CPCA01G33/00
Inventor 李信书
Owner HUAIHAI INST OF TECH
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