This standard applies to commercial forage grass seeds and forage grass seeds produced by state-owned agricultural and pastoral grass seed breeding farms (stations), townships (towns), and special breeding areas (teams, households). It also applies to forage grass seeds used by production units and exchanged with each other, and forage grass seeds bred and approved by scientific research, teaching, and breeding units. GB 6142-1985 Quality classification of main cultivated forage grass seeds of the Gramineae family GB6142-1985 standard download decompression password: www.bzxz.net

National Standard of the People's Republic of China
Qualities grading of main cultivated grasses seedsScope of application
UDC 633.2-152
GB614285
This standard applies to commercial forage seeds and non-production forage seeds of state-owned farms and ranches, grass seed breeding farms (stations), townships (towns), and special breeding areas (teams, production). It also applies to forage seeds reused by quasi-production units and exchanged with each other, and forage seeds bred and approved by scientific research, teaching, and breeding units.
2 Quality classification
See the table below for quality classification:
Non-capacity wheat
Pijiantang
Agropyron
cristatum
Ane nro le pidi-
um chiness
sativa
Bromus
inermis
Dact ylis
glomerata
Elymus
dahuricus
Published by the National Bureau of Standards on 1985-06-20
Purity, %
Not less than
Germination rate, %
Not less than
Other seeds, grains/kg
Not more than
Moisture, %
Not more than||tt ||1986-03-01 implementation
Old flower wheat
Wild barley
Perennial ryegrass
Lolium multiflorum
Paspalum striata
Keanaun
African doggrass
Sudan grass
Royal rice
Elymus
Isibiricus
Hordeum
bre visubulat um!
LoliumwwW.bzxz.Net
perenne
Lolium
multiflorum
Paspalum
dilatatum
pratensis
Setaria
anceps
Sorgham
sudanense
Zea mays
GB 6142--85
Purity, %
not less than
Germination rate, %
not less than
Other species, grains/kg
not more than
Moisture, %
not higher than
GB 6142-85
Appendix A
Several issues to be noted when inspecting seed quality (supplement)
The moisture content of grasses of non-Gramineae species south of the Yangtze River may be slightly higher than this standard, but not higher than 14%. Non-quarantine pests and diseases shall be restricted by provinces, municipalities and autonomous regions according to specific circumstances. The germination rate of Gramineae species shall be based on the measured germination rate after low temperature or variable temperature treatment. Seeds below grade A.3
shall not be purchased or sold, and shall not be used as seeds. The inspection of various indicators shall be carried out in accordance with GB2930--82 "Grass Seed Inspection Procedure". Additional notes:
This standard was proposed by the Ministry of Agriculture, Animal Husbandry and Fisheries of the People's Republic of China. This standard was drafted by the Grassland Research Institute of the Chinese Academy of Agricultural Sciences. The main drafters of this standard are Wu Baoguo, Chen Fenglin and Quan Ningyu. 230
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