GB/T 35938-2018Pyropia yezoensis—Technical protocols for conchocelis cultivation (English PDF)
条斑紫菜 丝状体培育技术规范
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
February 6, 2018
Implementation date
September 1, 2018
Scope
GB/T 35938-2018 is the English-translated version of 条斑紫菜 丝状体培育技术规范.
GB/T 35938-2018 gives the technical rules for growing the conchocelis, the filamentous shell-boring phase, of the laver Pyropia yezoensis in production hatcheries.
It defines free-living conchocelis, shell conchocelis and conchosporangia, and specifies the culture facilities, starting with the nursery room: site selection, with seawater meeting GB 3097, its size in relation to the net curtains to be seeded, and its design and orientation.
It then covers the production of carpospore seedlings, their cultivation, disease prevention and control, and the collection of conchospores. It applies to the production and cultivation of the filaments and to the quality assessment of the carpospores and conchospores.
Laver farms and seedling producers use it. It was issued on 6 February 2018 and has applied since 1 September 2018.
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Document preview — GB/T 35938-2018
National Standard of the People's Republic of China
- ICS
- 65.150
- Classification
- B 51
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Foreword
- 1 Scope
- 2 Normative references
- 3 Terms and Definitions
- 4 Incubation facilities
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
1 Scope
This standard specifies terms and definitions for the productive cultivation of Pyropia yezoensis filaments, cultivation facilities, and production of fruit spores.
Technical requirements for seedlings, cultivation, disease and control, and shell spore collection.
This standard applies to the production and cultivation of Porphyra yezoensis filaments, and the quality assessment of fruit spores and shell spores.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this document. For undated references, the latest version (including all amendments) applies to this document.
GB 3097 seawater quality standard
GB/T 21046 Porphyra yezoensis
3 Terms and Definitions
The following terms and definitions as defined in GB/T 21046 apply to this document.
3.1 Free-living conchocelis
The spores of seaweed fruit are suspended in water or attached to an attachment base, and long filamentous filaments of the algae sprout.
3.2 Conchocelis
The spores or free filaments of the laver cut into sections and grow inside the shells into irregularly branched algae composed of a single row of cells.
3.3 Conchosporangia
Filamentous filaments grow to a certain extent, with their lateral branches or apicals forming distinctly thicker branches (commonly known as enlarged cells), from one cell to another. Splitting forms irregular clusters.
4 Incubation facilities
4.1 Nursery Room
4.1.1 Site Selection
No pollution, convenient transportation, taking seawater and fresh water in the coastal areas, the sea water quality meets the requirements of GB 3097.
4.1.2 Scale
Each 180m² seaweed cultivation net curtain should be equipped with 0.8m² ~ 1.0m² nursery area.
4.1.3 Design
The nursery room is suitable for east-west direction and the roof is made of heat insulation material. The skylight area should account for 1/4~1/3 of the nursery pond area, and the side window surface
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Referenced standards
Normative references
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Related Standards
GB 3097-1982 — Marine water quality standard
GB 3097-1997 — Sea water quality standard
GB/T 21046-2007 — Porphyra yezoensis
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GB/T 35938-2018
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