Short-term cold storage method of porphyra yezoensis cultivation net curtain

Abstract

The invention provides a short-term cold storage method of a porphyra yezoensis cultivation net curtain, which comprises the following steps that: (1) the net curtain after porphyra yezoensis conchospore is seedling collected adopts a semi-floating raft to closely link and emerge the seedling; (2) the net is immediately disassembled before disease and mixed algae appear or when the disease and the mixed algae appear, the seedling net with uniform seedling emergence and strong frond is selected to be dried until the moisture content is 20 to 40 percent, florescence appears on the frond, and the frond has elasticity being pulled by hand; and (3) and then the net curtain is warehoused and cold stored to be used for the cultivation. The method has the advantages that: when unfavorable situations such as increasing of water temperature, disease and the like are discovered during the cultivation process, seedling net in the cultivation can be cold stored for a short term with the method so as to prevent the unfavorable situation of the sea area.

Description

technical field [0001] The invention relates to a method for short-term cold storage of net curtains for cultivating Porphyra variegata. Background technique [0002] Porphyra yezoensis is the main species of laver artificially cultivated in the sea area north of the Yangtze River in my country, and it is also the main cultivated species in Japan and Korea. Porphyra is currently the cultivated seaweed with the highest output value. However, due to the continuous expansion of production scale and excessive close planting, coupled with the pollution of the cultivation sea area environment, diseases such as chrysalis, red rot, and green spot have occurred frequently. The high-quality, high-yield and stable yield of seaweed have brought obstacles and restricted the development of laver cultivation industry. At present, there is still a lack of effective preventive measures for the main diseases of Porphyra zebra. [0003] Existing laver refrigerated net patented technology is ...

AI Technical Summary

Problems solved by technology

After the ascospore net curtain is out of the warehouse, it needs to go through the process of the ascospores germinating into laver seedlings. The process is easily affected by the environment, and it takes a certain amount of time, and there is a certain risk.

In addition, it cannot effectively protect seaweed seedlings cultivated at sea