Some standard content:
GB4404.1—1996
In order to protect the interests of seed production, management and users, avoid the losses caused by the use of unqualified seeds in production, and make the cultivated fine varieties obtain high quality and high yield, a unified quality standard must be established for regulation, and the quality standard of seeds is specially formulated. Considering the systematic and scientific nature of the layout of the quality standard of crop seeds, new adjustments were made to its overall arrangement during the revision. Grain crop seeds are composed of three independent parts: cereals, beans and beans. Among them, cereal crops include rice, corn, wheat, barley, sorghum, millet, millet and broomcorn. For ease of use, conventional seeds and hybrid seeds of the same crop are arranged in succession. Based on GB/T3543.1~3543.6-1995 "Inspection Procedures for Crop Seeds", through a large number of years of experimental research, typical investigations, and spot checks, the quality standards for cereal seed in GB4404-84 "Grain Seeds" and GB4405-84 "Grain Hybrid Seeds" (i.e., purity, clarity, germination rate, and moisture) have been comprehensively revised. In principle, conventional seeds are not graded, and hybrid seeds are divided into first and second grades. Due to major changes in the inspection methods and judgment standards, the germination rate has been changed to seedling judgment, so the value has decreased compared with the value before the revision. The clarity adopts the rapid method, and the value is generally higher than before the revision. The standard value of moisture has not changed much. This standard is proposed by the Ministry of Agriculture of the People's Republic of China. This standard is under the jurisdiction of the National Technical Committee for Standardization of Crop Seeds. The responsible drafting units of this standard are: National Seed Station, Beijing Seed Company, Henan Seed Station, Shandong Seed Station, Jiangsu Seed Station, Shaanxi Seed Station, Hubei Seed Station, Heilongjiang Seed Administration, Hunan Seed Station, Gansu Seed Station, Sichuan Seed Company, Jiangxi Seed Station, Liaoning Seed Station, Hebei Seed Station, Shanxi Seed Station. The main drafters of this standard are:
Rice: Wu Yuqian, Liu Hang, Zhao Juying, Liu Hanzhen, Shen Yuexin, Sheng Suwen. Wheat: Li Renfeng, Ren Shuping, Deng Yinjin, Yu Shiming. Corn: Zhang Shumin, Sheng Haowen, Deng Yinjin, Li Xiujin, Chen Fei. Barley: Tang Yongxiang, Shi Shuling, Liu Hanzhen, Bu Liansheng. Sorghum: Su Juping, Zhang Shumin, Chang Xiulan, Sheng Suwen, Wu Cunli. Millet: Li Xiujin, Wu Cunli, Chang Xiulan, Zhang Shumin, Shuai Shurong. Millet and broomcorn: Li Xiujin, Wu Cunli, Chang Xiulan, Yuan Shurong, Zhang Shumin. The National Agricultural Technology Extension Service Center of the Ministry of Agriculture is responsible for the interpretation of this standard. This standard was first issued in May 1984.
Standard Search Zero Net Mail
Certificate Low Line Selling
1 Scope
National Standard of the People's Republic of China
Seeds of food crops-Cereals
GB 4404. 1—1996
Generation 48- 8
This standard specifies the quality requirements, inspection methods and inspection rules for rice, wheat, corn, barley, sorghum, mulberry, millet and broomcorn seeds. This standard applies to the production and sale of cereal crop seeds. 2 Referenced Standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. At the time of publication of this standard, the versions shown are valid. All standards are subject to revision, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB/T3543.1—1995 General Rules for Inspection of Crop Seeds GB/T3543.2—1995 Sampling of Inspection of Crop Seeds GB/T3543.3--1995 Purity Analysis of Inspection of Crop Seeds
GB/T3543.4—1995 Germination Test of Inspection of Crop Seeds
GB/T3543.5—1995 Authenticity and Variety Purity Identification of Inspection of Crop Seeds
GB/T3543.61995 Moisture Determination of Inspection of Crop Seeds 3 Definitions
This standard adopts the following definitions.
3.1 Original Seeds
Seeds of the first to third generations propagated by breeder seeds or produced according to original seed production technical regulations that meet original seed quality standards. 3.2 Improved varieties
Seeds of the first to third generations and hybrids bred from conventional seed stock that meet the improved variety quality standards. 4 Quality requirements
See Table 1 for quality indicators of cereal crop seeds. Approved by the State Bureau of Technical Supervision on December 28, 1996
Free download of rice standard industry data
Implementation on June 1, 1997
Crop name
Conventional varieties
Sterile lines
Maintainer lines
Restorer lines
Hybrids
Conventional varieties
Inbred lines
Single cross varieties
Triple cross varieties
Skinned barley
Naked barley
Conventional varieties|| tt||Sterile line
Maintainer lineWww.bzxZ.net
Restorer line
Hybrid
GB4404.1—1996
Not less than
Not less than
Germination rate
Not less than
Water head
Not higher than
13.0 (glaze)
14.5 (stalk)
Note: The moisture content of rice, corn and sorghum in the north of the Great Wall and the high-cold areas is allowed to be higher than 13%, but not higher than 16%. The moisture content of seeds transferred to the south of the Great Wall (except for the high-cold areas) cannot be higher than 13%.
5 Inspection method
5.1 Sampling
Positive live packing
Perform according to GB/T3543.2.
Clarity analysis
According to GB/T3543.3.
5.3 Germination test
According to GB/T3543.4.
5.4 Authenticity and variety purity identification
According to GB/T3543.5.
Water content determination
According to GB/T3543.6.
Inspection rules
GB4404.1-1996
The purity index is used as the basis for dividing the seed quality level. If the purity does not meet the original seed index, it will be downgraded to the first-grade improved seed, if it does not meet the first-grade improved seed index, it will be downgraded to the second-grade improved seed, and if it does not meet the second-grade improved seed, it will be an unqualified seed. If one of the purity, germination rate and moisture content does not meet the index, it will be an unqualified seed. 103
Standard search network research
Free download of various standards and industry information
Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.