Rapid breeding method of Sargassum fusiforme

Abstract

The invention discloses a rapid breeding method of Sargassum fusiforme. The method includes the steps of selecting parents, performing isolation cultivation to single plants, promoting maturity, allowing fertilization, screening juvenile sporophytes, cultivating the juvenile sporophytes and the like. During isolation cultivation of the single plants, the weight ratio of the parents to cultivation water is 1:100; maturity promoting liquid is natural seawater added monopotassium phosphate, calcium chloride and sodium ethylene diamine tetracetate, under salinity of 27%. to 28%.; during fertilization, the ratio of females to males is 5:1. The method has the advantages that the technical defect of germplasm degeneration in the prior art is overcome, high-quality seedlings of Sargassum fusiforme can be obtained, plant dry weight of Sargassum fusiforme bred by the method is up to 247.7g, sac diameter is up to 4.1mm, and by the use of the method compared to the traditional methods, yield per mu of the plant dry weight is increased by 26.1%, the sac diameter is increased by 41.1%, and economic benefit is increased by 37.8%.

Description

technical field [0001] The invention relates to a hijiki breeding method, in particular to a hijiki rapid breeding method, and belongs to the technical field of hijiki seedlings. Background technique [0002] Hizikia fusiforme (Harv) Okamura belongs to Phaeophyta, Enculia, Fucusaceae, Sargasceae, Hizikia, and is the only species in this genus. Sargassum sargassum is large in size, fast in growth, and has a good ecological effect for breeding. Through harvesting, the carbon, nitrogen, and phosphorus in the sea area can be fixed and transported to the shore in the form of protoalgae, and processed into different species. The product form has remarkable economic benefits. The study found that the geographical population traits of the species of hijiki cultivated in my country are significantly different from those in South Korea. The growth cycle of hijiki in Korea is 2 months longer, and it usually matures in July. The thick and dry products have a high rehydration rate after...

AI Technical Summary

Problems solved by technology

[0004] The breeding methods of rhizoid regenerated seedlings and artificially cultivated young sporophytic seedlings have successfully solved the problem of the source of Hijiki seedlings; Sources, often the seedlings of the same source are cultured in the same sea area, resulting in a higher incidence of self-crossing, such offspring continue to reproduce young sporophytes, which will cause the germplasm degradation of the cultured offspring, and the seed breeders do not consider the variety. The problem is that vegetables are randomly selected, and the number of seedlings is the only criterion; similarly, farmers have no choice, which leads to serious germplasm degradation of Hijiki

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