Gracilaria lemaneiformis culture method capable of avoiding culture diseases and preferably selecting low-temperature-resistant seedlings

Abstract

The invention discloses a gracilaria lemaneiformis culture method capable of avoiding culture diseases and preferably selecting low-temperature-resistant seedlings, which comprises the following steps: clamping gracilaria lemaneiformis seedlings on seedling ropes at intervals, folding the seedling ropes clamping the seedlings in a reciprocating manner to enable folded seedling rope bundles to be 1-2 cm long, and binding the upper ends of the folded seedling rope bundles with binding ropes, and binding falling stones at the lower ends of the seedling rope bundles; binding the upper ends of the seedling rope bundles to ropes for culture in a hanging culture mode, wherein during hanging culture, it needs to be guaranteed that gracilaria lemaneiformis seedlings pass for at least 8 days in the environment with the water temperature lower than 8 DEG C from December in winter to April in the next year, propagation is conducted till the water temperature reaches 12 DEG C, and a surface layer flat culture mode is adopted in the propagation culture mode. According to the hanging culture mode disclosed by the invention, foreign disease species which are harmful to the gracilaria lemaneiformis and are suitable for high-temperature growth can be eliminated. Meanwhile, damage of illumination to the gracilaria lemaneiformis seedlings under the low-temperature condition can be reduced, winter seedling protection in a temperate zone sea area is achieved, and the transportation cost of transporting the seedlings from the subtropical zone to the temperate zone is saved.

Description

technical field [0001] The invention relates to a method for cultivating asparagus, in particular to a method for cultivating asparagus which avoids breeding diseases and optimizes low-temperature-resistant seedlings. Background technique [0002] Asparagus is the main raw material for the production of agar, and it is also of great significance for improving the eutrophication of offshore waters, regulating and optimizing the marine ecological balance. Asparagus also contains a variety of biologically active substances, such as asparagus sulfated polysaccharides, oligosaccharides, soluble dietary fiber, asparagus polypeptides, polyphenols, etc. A large number of studies have shown that asparagus contains a variety of biologically active substances. Anti-aging, anti-tumor, anti-allergy and anti-oxidation effects. [0003] The existing asparagus cultivation method is to move the asparagus directly from the south to the north at the turn of spring and summer, when the water t...

AI Technical Summary

Problems solved by technology

At present, alien invasive species of epizootics and plants in the south are multiplying in large numbers in the northern seas, and even caused serious asparagus breeding diseases

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