GB 4407.2-1996 Economic Crop Seeds and Oilseeds

This standard specifies the quality requirements, inspection methods and inspection rules for rapeseed, peanut, sesame and sunflower seeds. This standard applies to the production and sale of oilseed crop seeds. GB 4407.2-1996 Economic Crop Seed Oilseed Category GB4407.2-1996 Standard Download Decompression Password: www.bzxz.net

GB4407.2-1996
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 used for standardization, 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. The seeds of economic crops are composed of two independent parts: fiber and oil crops. Among them, oil crops include rapeseed, peanuts, sesame, and sunflowers. For the convenience of use, conventional seeds and hybrids of the same crop are arranged in succession. According to 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 of economic crop seeds in GB4407-84 "Oil Seeds" (i.e., four indicators such as 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 the great changes in the inspection methods and judgment standards, the germination rate was changed to seedling judgment, so the value was lower than that before the revision. The purity adopted the rapid method, which was generally higher than that before the revision, and the standard value of water content did not change much. This standard was 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, Shaanxi Seed Station, Anhui Seed Station, Hunan Seed Station, Jiangxi Seed Station, Shandong Seed Station, Hebei Seed Station, Henan Seed Station, Hubei Seed Station, Heilongjiang Seed Administration Bureau, Inner Mongolia Autonomous Region Seed Station.
Main drafters of this standard:
Rapeseed: Shi Shuling, Liu Huakai, Zhao Juying, Shen Yuexin, Fu Zonghua, Zhou Zhijun, Shi Guiqin. Peanut: Zhang Chengyi, Deng Yinjin, Yuan Shurong, Huo Qingtao. Sesame: Liu Hanzhen, Liu Huakai, Song Xinmin, Nie Lianbing, Zhang Shumin. Sunflower: Chang Xiulan, Shi Shuling, Chen Yajun. 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.
1 Scope
National Standard of the People's Republic of China
Economic Crop Seeds
Oil Crop
Seeds of economic crops--Oil cropsGB 4407.2-1996
Replaces GB4407-84
This standard specifies the quality requirements, inspection methods and inspection rules for rapeseed, peanut, sesame and sunflower seeds. This standard applies to oil crop seeds produced and sold. 2 Referenced Standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard was published, the versions shown were 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. Rules for the inspection of crop seeds
GB/T 3543.1—1995
GB/T 3543.2-—1995
Rules for the inspection of crop seeds
GB/T 3543. 3 --1995
Rules for the inspection of crop seeds
GB/T 3543.4—1995
Rules for the inspection of crop seeds
GB/T 3543. 5--1995bzxz.net
Rules for the inspection of crop seeds
Clarity analysis
Germination test
Authenticity and variety purity identification
GB/T 3543. 6-—1995
Rules for the inspection of crop seeds, Determination of moisture 3 Definitions
This standard adopts the following definitions.
3.1 Original seeds
Seeds of the first to third generations bred from breeders' seeds or produced according to original seed production technical regulations that meet original seed quality standards. 3.2 Improved seeds
Seeds of the first to third generations bred from conventional original seeds and hybrids that meet improved seed quality standards. 4 Quality requirements
The quality indicators of hybrid rapeseed seeds (three lines) are shown in Table 1. Table 1
Crop name
Hybrid seeds
4.2 The quality indicators of conventional rapeseed seeds are shown in Table 2. Grade
Approved by the State Administration of Technical Supervision on December 28, 1996Purity
Not less than
Not less than
Germination rate
Not less than
Not higher than
Implemented on June 1, 1997
Crop name
GB 4407. 2--1996
The quality indicators of peanut, sesame and sunflower seeds are shown in Table 3. Item
Crop name
Sunflower
5 Inspection method
5.1 Sampling
Performed in accordance with GB/T3543.2.
5.2 Clarity analysis
Performed in accordance with GB/T3543.3.
5.3 Germination test
Perform according to GB/T3543.4.
5.4 Authenticity and variety purity identification
Perform according to GB/T3543.5.
5.5 Moisture determination
Perform according to GB/T3543.6.
6 Inspection rules
Not less than
Not less than
Not less than
Not less than
Germination rate
Not less than
Germination rate
Not less than
Not higher than
The variety 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, it will be downgraded to the second-grade improved seed, and if it does not meet the second-grade improved seed, it will be unqualified seed. If any one of the purity, germination rate, or moisture content does not meet the standard, the seeds are considered unqualified.
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