KMethod for carrying out germchit production for brown alga sargassum through breeding induction and controlled fertilization

Abstract

A process for culturing the seedlings of Sargassum fusiforme by inducing reproduction and controlling fertilization includes such steps as providing seawater tank, choosing the seed sargassum fusiforme with male and female receptacles, controlling circulating time, illumination intensity and temp for synchronous mature and discharge of sperm and egg, fertilization, collecting fertilized eggs, inoculating the young sporophytes to attachment, and culturing in seawater at 20-25 deg.C for 1-2 months.

Description

Technical field

[0001] The invention relates to marine biotechnology, in particular to a method for inducing the reproduction of the brown alga Hijikia fusiformis and using regulated fertilization for seedling production. Background technique

[0002] Hijiki is a kind of edible economic seaweed, mainly cultivated in Korea, Japan and China. There are more than 20 years of breeding history in my country, and the main breeding area is Zhejiang Province. The seedlings used in the artificial breeding of hijiki are mainly derived from the regeneration of false roots. It is a worldwide problem to use the law of sexual reproduction of hijikia (Hizikia fusiformis) to cultivate seedlings. Scholars from South Korea and China have successively conducted a number of studies and achieved phased results. However, as of today, it has not been widely used in production, and there are still technical constraints. It is manifested in (1) the timing of sexual maturation of dioecious hijiki under dif...

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