Method for collecting seedlings from scytosiphon filaments

Abstract

The invention discloses a method for collecting seedlings from scytosiphon filaments. The heterothallic characteristics of scytosiphon gametes are used for acquiring filaments from discoid bodies formed by parthenogenesis (etheogenesis) of the gametes obtained from individual mature algae, the method for collecting seedlings from filaments is used for chopping and spreading the filaments on an attaching base, and filament cells on the attaching base can directly germinate and form monoploid scytosiphon seedlings. The filaments of propagation culture can be preserved for a long time, the seedling collecting time and the seedling collecting quantity can be determined according to production requirements every year, the culture phases of zygote collection, discoid sporophyte growth, sporangium maturity and the like in the prior art are omitted, and the indoor culture time can be saved by more than 5 months. The invention basically overcomes the defects of season limitation of scytosiphon collection, zygote insemination and alga propagation, long indoor culture time, low success rate of culture of seedlings and the like, reduces the cost of culture of seedlings, greatly improves the success rate of culture of seedlings, provides a large number of seedlings for scytosiphon production, and industrializes the scytosiphon planting industry.

Description

Technical field: [0001] The invention relates to a method for collecting seedlings of Hemerocallis, in particular to a method for cultivating Hemerocallis filaments, using filament cells to directly germinate into Hemerocallis seedlings, reducing the cost of seedling cultivation and greatly improving the success rate of seedling cultivation. Seedling method. Background technique: [0002] Scytosiphon lomentaria (Lyngbye) Link belongs to Phaeophyta and Scytosiphonaceae, and is an annual euryothermic brown alga widely distributed from Liaoning in the north to the coast of Guangdong in the south. Hemerocallis is composed of macroscopic diplosporophyte generations and microscopic haploid gametophyte generations alternately. Hemerocallis seedlings begin to appear in natural sea areas every winter, and grow into large algae and mature after winter and spring (generally the length of algae The length of the algae is 20-70cm, and the maximum length of the algae can reach 90cm), and...

AI Technical Summary

Problems solved by technology

The biggest disadvantage of this method is that it is necessary to collect zygotes every time seedlings are collected and to cultivate the disc sporophytes for a long time. Due to the large number of algae multiplication and the influence of high water temperature period, the disc sporophytes have a high